{"id":1221,"date":"2014-05-26T15:10:53","date_gmt":"2014-05-26T08:10:53","guid":{"rendered":"http:\/\/vafs.gov.vn\/en\/?p=1221"},"modified":"2014-05-26T15:17:58","modified_gmt":"2014-05-26T08:17:58","slug":"vietnam-journal-of-forest-science-number-1-2014","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2014\/05\/vietnam-journal-of-forest-science-number-1-2014\/","title":{"rendered":"Vietnam Journal of Forest Science Number 1-2014"},"content":{"rendered":"
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Table of content<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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1<\/p>\n<\/td>\n

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\u0110\u1eb7c \u0111i\u1ec3m sinh l\u00fd v\u00e0 ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o qu\u1ea3n h\u1ea1t Mun (Diospyros mun <\/i>A.Chev. ex Lecomte)<\/p>\n<\/td>\n

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Ng\u00f4 V\u0103n Nh\u01b0\u01a1ng<\/p>\n<\/td>\n

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Physiological characteristics and storage method of Diospyros mun<\/i>\u00a0A. Chev. Ex lecomte seed<\/p>\n<\/td>\n

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3089<\/p>\n<\/td>\n<\/tr>\n

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2<\/p>\n<\/td>\n

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K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra v\u1ec1 h\u1ecd d\u1ebb (Fagaceae) \u1edf V\u01b0\u1eddn qu\u1ed1c gia V\u0169 Quang, t\u1ec9nh H\u00e0 T\u0129nh<\/p>\n<\/td>\n

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Nguy\u1ec5n Vi\u1ec7t H\u00f9ng,
\nNguy\u1ec5n Thanh S\u01a1n,
\nTha\u0301i Ca\u0309nh Toa\u0300n,
\n\u0110\u00e0o Duy Phi\u00ean,
\nMai Thi\u00ea\u0301t S\u01a1n,
\nPh\u1ea1m N\u1eef Qu\u1ef3nh Anh,
\nTr\u1ea7n \u0110\u00ecnh Anh<\/p>\n<\/td>\n

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Results on species composition of Fagaceae at the Vu Quang National Park, Ha Tinh province<\/p>\n<\/td>\n

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3095<\/p>\n<\/td>\n<\/tr>\n

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3<\/p>\n<\/td>\n

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\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 tr\u1ed3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c gi\u1ed1ng tr\u00e0m (Melaleuca) \u1edf Th\u1ea1nh H\u00f3a – Long An<\/p>\n<\/td>\n

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Ph\u1ea1m Th\u1ebf D\u0169ng<\/p>\n<\/td>\n

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Effective of planted density on growth of melaleuca provenances in Thanh Hoa, Long An province<\/p>\n<\/td>\n

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3101<\/p>\n<\/td>\n<\/tr>\n

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4<\/p>\n<\/td>\n

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\u1ea2nh h\u01b0\u1edfng c\u1ee7a \u00e1nh s\u00e1ng v\u00e0 ph\u00e2n b\u00f3n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y Gi\u1ed5i xanh sau khi tr\u1ed3ng<\/p>\n<\/td>\n

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Phan V\u0103n Th\u1eafng<\/p>\n<\/td>\n

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Growth response of Michelia mediocris<\/i> Dandy planted under different levels of canopy openness and different types of fertilisers<\/p>\n<\/td>\n

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3112<\/p>\n<\/td>\n<\/tr>\n

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5<\/p>\n<\/td>\n

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Nghi\u00ean c\u1ee9u bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng ph\u00f2ng h\u1ed9 v\u00f9ng \u0111\u1ed3i n\u00fai ven bi\u1ec3n t\u1ec9nh Ph\u00fa Y\u00ean<\/p>\n<\/td>\n

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Vo\u0303 \u0110a\u0323i Ha\u0309i, Hoa\u0300ng Phu\u0301 My\u0303<\/p>\n<\/td>\n

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Research on protection forest planting techniques in coastal hilly-mountainous areas, Phu Yen province<\/p>\n<\/td>\n

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3119<\/p>\n<\/td>\n<\/tr>\n

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6<\/p>\n<\/td>\n

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Bi\u1ebfn \u0111\u1ed9ng ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y trong c\u00e1c m\u00f4 h\u00ecnh r\u1eebng tr\u1ed3ng Sao \u0111en (Hopea odorata<\/i>) v\u00e0 D\u1ea7u r\u00e1i (Dipterocarpus alatus<\/i>) t\u1ea1i Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean – V\u0103n H\u00f3a – \u0110\u1ed3ng Nai<\/p>\n<\/td>\n

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B\u00f9i Vi\u1ec7t H\u1ea3i,
\nT\u00f4 B\u00e1 Thanh,
\nPh\u1ea1m Xu\u00e2n Ho\u00e0n<\/p>\n<\/td>\n

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Tree quality change of Hopea odorata <\/i>\u00a0and Dipterocarpus alatus<\/i> plantation models in Dong Nai culture nature reserve<\/p>\n<\/td>\n

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3129<\/p>\n<\/td>\n<\/tr>\n

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7<\/p>\n<\/td>\n

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K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 b\u01b0\u1edbc \u0111\u1ea7u v\u1ec1 th\u1eed nghi\u1ec7m tr\u1ed3ng m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y m\u1ecdc nhanh, c\u00e2y b\u1ea3n \u0111\u1ecba c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf trong tr\u1ed3ng r\u1eebng v\u00e0 l\u00e0m gi\u00e0u r\u1eebng \u1edf v\u00f9ng \u0110\u00f4ng Nam B\u1ed9<\/p>\n<\/td>\n

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Ph\u1ea1m Th\u1ebf D\u0169ng<\/p>\n<\/td>\n

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Resuls of preliminary assessment on experimental planting of fast growing tree species, native one with economical value to use in reforestation and natural forest enrichment in South-Eastern region<\/p>\n<\/td>\n

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3139<\/p>\n<\/td>\n<\/tr>\n

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8<\/p>\n<\/td>\n

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Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh vai tr\u00f2 c\u1ee7a m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 li\u00ean quan \u0111\u1ebfn x\u00f3i m\u00f2n \u0111\u1ea5t \u1edf n\u01b0\u1edbc ta<\/p>\n<\/td>\n

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Nguy\u1ec5n V\u0103n Khi\u1ebft<\/p>\n<\/td>\n

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Research on determining the role of some factors related to soil erosion in Vietnam<\/p>\n<\/td>\n

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3145<\/p>\n<\/td>\n<\/tr>\n

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9<\/p>\n<\/td>\n

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\u1ea2nh h\u01b0\u1edfng c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu \u0111\u1ebfn nguy c\u01a1 ch\u00e1y r\u1eebng \u1edf v\u00f9ng T\u00e2y B\u1eafc Vi\u1ec7t Nam<\/p>\n<\/td>\n

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L\u00ea S\u1ef9 Doanh,
\nB\u1ebf Minh Ch\u00e2u<\/p>\n<\/td>\n

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Impact of climate change on forest fire risk in the Northwest Vietnam<\/p>\n<\/td>\n

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3154<\/p>\n<\/td>\n<\/tr>\n

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10<\/p>\n<\/td>\n

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C\u01a1 h\u1ed9i v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a h\u1ec7 th\u1ed1ng v\u01b0\u1eddn \u01b0\u01a1m c\u1ea5p n\u00f4ng h\u1ed9 \u1edf t\u1ec9nh S\u01a1n La v\u00e0 mi\u1ec1n n\u00fai ph\u00eda B\u1eafc Vi\u1ec7t Nam<\/p>\n<\/td>\n

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V\u0169 V\u0103n Thu\u1eadn,
\n\u0110o\u00e0n \u0110\u1ee9c L\u00e2n, Nguy\u1ec5n Th\u1ecb H\u00f2a, Dumas-Johansen, Marc Kristof,
\nHo\u00e0ng Minh H\u00e0,<\/p>\n<\/td>\n

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Challenges and opportunities for the system of small-scale nurseries in Son La province and Vietnam’s Northern mountain region<\/p>\n<\/td>\n

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3163<\/p>\n<\/td>\n<\/tr>\n

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11<\/p>\n<\/td>\n

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M\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p ch\u00ednh \u1edf Thanh H\u00f3a<\/p>\n<\/td>\n

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Ho\u00e0ng V\u0103n Th\u1eafng, Delia C. Catacutan, Cao V\u0103n L\u1ea1ng, Nguy\u1ec5n Mai Ph\u01b0\u01a1ng,
\nNguy\u1ec5n Ho\u00e0ng Ti\u1ec7p<\/p>\n<\/td>\n

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Some characteristics of main agroforestry models in Thanh Hoa province<\/p>\n<\/td>\n

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3173<\/p>\n<\/td>\n<\/tr>\n

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12<\/p>\n<\/td>\n

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Th\u00e0nh ph\u1ea7n lo\u00e0i v\u00e0 bi\u1ebfn \u0111\u1ed9ng di\u1ec7n t\u00edch r\u1eebng ng\u1eadp m\u1eb7n t\u1ec9nh H\u00e0 T\u0129nh<\/p>\n<\/td>\n

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Tr\u1ea7n Th\u1ecb T\u00fa,
\nNguy\u1ec5n H\u1eefu \u0110\u1ed3ng<\/p>\n<\/td>\n

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Species composition and the fluctuation of mangroves in Ha Tinh province<\/p>\n<\/td>\n

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3183<\/p>\n<\/td>\n<\/tr>\n

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13<\/p>\n<\/td>\n

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\u0110a d\u1ea1ng th\u1ea3m th\u1ef1c v\u1eadt v\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a th\u1ef1c v\u1eadt theo \u0111\u1ed9 cao t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia Ba V\u00ec<\/p>\n<\/td>\n

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Tr\u1ea7n Minh Tu\u1ea5n,
\nV\u0169 Anh T\u00e0i<\/p>\n<\/td>\n

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Research on vegetation diversity, and the zonal changes of vegetation in Ba Vi National Park<\/p>\n<\/td>\n

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3195<\/p>\n<\/td>\n<\/tr>\n

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14<\/p>\n<\/td>\n

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C\u00e2y thu\u1ed1c c\u1ee7a ng\u01b0\u1eddi Hre v\u00e0 \u0111\u1ec1 xu\u1ea5t m\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n, ph\u00e1t tri\u1ec3n t\u1ea1i huy\u1ec7n Ba T\u01a1, t\u1ec9nh Qu\u1ea3ng Ng\u00e3i<\/p>\n<\/td>\n

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V\u00f5 V\u0103n Minh,
\nPh\u1ea1m Th\u1ecb Kim Thoa, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn<\/p>\n<\/td>\n

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Medicinal plants of Hre ethnic and propose some solutions to conservation and development of medicinal plants in the Ba To district, Quang Ngai province<\/p>\n<\/td>\n

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3206<\/p>\n<\/td>\n<\/tr>\n

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15<\/p>\n<\/td>\n

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Nghi\u00ean c\u1ee9u t\u00ecnh tr\u1ea1ng v\u00e0 ph\u00e2n b\u1ed1 c\u1ee7a c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt hoang d\u00e3 qu\u00fd hi\u1ebfm t\u1ea1i Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean S\u1ed1p C\u1ed9p, t\u1ec9nh S\u01a1n La<\/p>\n<\/td>\n

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V\u0169 Ti\u1ebfn Th\u1ecbnh<\/p>\n<\/td>\n

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Status and distribution of endangered species of wildlife species of Sop Cop Nature Reserve, Son La province<\/p>\n<\/td>\n

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3216<\/p>\n<\/td>\n<\/tr>\n

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16<\/p>\n<\/td>\n

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Ho\u00e0n thi\u1ec7n c\u00f4ng ngh\u1ec7
\ns\u1ea3n xu\u1ea5t v\u00e1n c\u1ed1p pha t\u1eeb
\ntre lu\u1ed3ng<\/p>\n<\/td>\n

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Nguy\u00ea\u0303n Quang Trung,
\nPha\u0323m V\u0103n Ch\u01b0\u01a1ng<\/p>\n<\/td>\n

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Bamboo formwork technology improvement for its quality enhancing<\/p>\n<\/td>\n

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3224<\/p>\n<\/td>\n<\/tr>\n

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17<\/p>\n<\/td>\n

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\u1ea2nh h\u01b0\u1edfng c\u1ee7a x\u1eed l\u00fd th\u1ee7y nhi\u1ec7t v\u00e0 ch\u1ea5t ch\u1eadm ch\u00e1y \u0111\u1ebfn m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd Mono ammonium phosphate c\u1ee7a g\u1ed7 B\u1ea1ch \u0111\u00e0n urophylla<\/p>\n<\/td>\n

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Nguy\u1ec5n Thanh T\u00f9ng, \u0110\u1eb7ng \u0110\u1ee9c Vi\u1ec7t,
\n\u0110\u1ed7 V\u0169 Th\u1eafng<\/p>\n<\/td>\n

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Influence of hydrothermal and Mono ammonium Phosphate treatments on some physical properties of Eucalyptus urophylla<\/i> timber<\/p>\n<\/td>\n

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3231<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u0110\u1eb6C \u0110I\u1ec2M SINH L\u00dd V\u00c0 PH\u01af\u01a0NG PH\u00c1P B\u1ea2O QU\u1ea2N H\u1ea0T MUN (Diospyros mun<\/i>\u00a0A.Chev. ex Lecomte)<\/p>\n

Ng\u00f4 V\u0103n Nh\u01b0\u01a1ng
\nS\u1edf Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Ninh B\u00ecnh<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a: <\/i><\/b>B\u1ea3o qu\u1ea3n h\u1ea1t gi\u1ed1ng, <\/i>Diospyros mun <\/i>A.Chev. ex Lecomte., \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd h\u1ea1t gi\u1ed1ng, <\/i>Mun<\/i>.<\/i><\/i><\/p>\n

\u00a0<\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeTMun (Diospyros mun <\/i>A.Chev. ex Lecomte) l\u00e0 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao, th\u01b0\u1eddng m\u1ecdc h\u1ed7n lo\u00e0i trong r\u1eebng l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh. \u0110\u00e2y l\u00e0 lo\u00e0i c\u00f3 chu k\u1ef3 sai qu\u1ea3 r\u1ea5t th\u1ea5t th\u01b0\u1eddng v\u00e0 h\u1ea1t m\u1ea5t s\u1ee9c n\u1ea3y m\u1ea7m r\u1ea5t nhanh. Do v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd v\u00e0 ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o qu\u1ea3n h\u1ea1t gi\u1ed1ng l\u00e0 c\u1ea7n thi\u1ebft nh\u1eb1m k\u00e9o d\u00e0i kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef c\u1ee7a h\u1ea1t gi\u1ed1ng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, tr\u1ecdng l\u01b0\u1ee3ng trung b\u00ecnh c\u1ee7a m\u1ed9t h\u1ea1t l\u00e0 163mg, 1kg h\u1ea1t c\u00f3 th\u1ec3 c\u00f3 kho\u1ea3ng t\u1eeb 5695-6748 h\u1ea1t, trung b\u00ecnh c\u00f3 6123 h\u1ea1t, h\u1ea1t b\u1eaft \u0111\u1ea7u n\u1ea3y m\u1ea7m sau 6 ng\u00e0y gieo \u01b0\u01a1m v\u00e0 \u0111\u1ea1t t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m cao nh\u1ea5t v\u00e0o ng\u00e0y th\u1ee9 12 v\u00e0 sau 20 ng\u00e0y th\u00ec s\u1ed1 l\u01b0\u1ee3ng h\u1ea1t n\u1ea3y m\u1ea7m kh\u00f4ng \u0111\u00e1ng k\u1ec3. H\u1ea1t Mun s\u1ebd m\u1ea5t s\u1ee9c n\u1ea3y m\u1ea7m khi r\u00fat \u1ea9m \u0111\u1ed9 h\u1ea1t t\u1eeb 22% xu\u1ed1ng 15%, t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m gi\u1ea3m t\u1eeb 65% xu\u1ed1ng c\u00f2n 30,5% v\u00e0 kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng n\u1ea3y m\u1ea7m khi \u1ea9m \u0111\u1ed9 h\u1ea1t r\u00fat xu\u1ed1ng 4%. Nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 h\u1ea1t n\u1ea3y m\u1ea7m t\u1ed1t nh\u1ea5t l\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 20 – 250<\/sup>C v\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. Th\u1eddi gian b\u1ea3o qu\u1ea3n h\u1ea1t Mun c\u00f3 th\u1ec3 k\u00e9o d\u00e0i h\u01a1n 6 th\u00e1ng trong \u0111i\u1ec1u ki\u1ec7n 100<\/sup>C v\u00e0 \u1ea9m \u0111\u1ed9 h\u1ea1t 18%.<\/td>\n<\/tr>\n
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Keywords<\/i><\/b>: <\/i><\/b>Diospyros mun <\/i>A.Chev. ex Lecomte, seed physiological characteristics, seed storage method.<\/i><\/i><\/b><\/p>\n

\u00a0<\/i><\/b><\/p>\n<\/td>\n

Physiological characteristics and storage method of Diospyros mun<\/i> A. Chev. ex Lecomte seedDiospyros mun <\/i>A.Chev. ex Lecomte is an indigenous tree species that produces high value timber, often grows in mixed broad-leaved forest. The fruiting cycle is irregular and the germination capacity of the seed decreases quickly. Therefore, study on physiological characteristics and seed storage methods are necessary to extend seed storage capacity. Research results show that mean weight of a seed is 163mg, one kilogam seed can range from 5695-6748 seeds, 6123 seed on the average, seeds started germinating 6 days after sowing and germination rate reached the highest on the 12th day while after 20 days, only few seeds germinated. When the moisture content of seeds was reduced from 22% to 15%, seed germination rates decreased from 65% to 30,5% and no seed germinated when seed moisture content was reduced to 4%. Temperature for seed germination was best at 20 – 25\u00b0C or room temperature. Seed can be stored for more than 6 months at 10\u00b0C and 18% moisture content.<\/p>\n

 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebeT QU\u1ea2 \u0110I\u1ec0U TRA V\u00ca\u0300 H\u1ecc D\u1eba (FAGACEAE)
\n\u1ede V\u01af\u1edcN QU\u1ed0C GIA V\u0168 QUANG, T\u1ec8NH H\u00c0 T\u0128NH<\/p>\n

Nguy\u1ec5n Vi\u1ec7t H\u00f9ng, Nguy\u1ec5n Thanh S\u01a1n, Tha\u0301i Ca\u0309nh Toa\u0300n,
\n\u0110\u00e0o Duy Phi\u00ean, Mai Thi\u00ea\u0301t S\u01a1n,Ph\u1ea1m N\u1eef Qu\u1ef3nh Anh, Tr\u1ea7n \u0110\u00ecnh Anh
\nV\u01b0\u1eddn Qu\u1ed1c gia V\u0169 Quang, H\u00e0 T\u0129nh<\/i><\/i><\/p>\n\n\n\n\n
\n

T\u1eeb kh\u00f3a:<\/i><\/b> Fagaceae,
\nV\u01b0\u1eddn qu\u1ed1c gia V\u0169 Quang, H\u00e0 T\u0129nh.<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Theo k\u1ebft qu\u1ea3 \u0111i\u1ec1u tra c\u00f3 60 lo\u00e0i thu\u1ed9c 14 chi trong h\u1ecd D\u1ebb (Fagaceae) t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia V\u0169 Quang, t\u1ec9nh H\u00e0 T\u0129nh, trong \u0111\u00f3, Lithocarpus c\u00f3 37 lo\u00e0i (61,67%); Quercus v\u1edbi 12 lo\u00e0i (20%); Castanopsis c\u00f3 9 lo\u00e0i (15%) v\u00e0 Castanea c\u00f3 1 lo\u00e0i (1,67%). C\u00f3 1 chi v\u00e0 35 lo\u00e0i l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ghi nh\u1eadn t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u. V\u01b0\u1eddn qu\u1ed1c gia V\u0169 Quang c\u00f3 10 lo\u00e0i thu\u1ed9c h\u1ecd D\u1ebb \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn trong S\u00e1ch \u0110\u1ecf Vi\u1ec7t Nam (2007). X\u00e9t v\u1ec1 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c lo\u00e0i thu\u1ed9c h\u1ecd D\u1ebb, nh\u00f3m c\u00e2y l\u1ea5y g\u1ed7 l\u00e0 35 lo\u00e0i; c\u00e2y \u0103n h\u1ea1t v\u00e0 c\u00e2y cho tanin l\u00e0 10 lo\u00e0i v\u00e0 1 lo\u00e0i c\u00e2y s\u1eed d\u1ee5ng l\u00e0m c\u1ea3nh.<\/td>\n<\/tr>\n
\n

Keywords\u00a0: <\/i><\/b>Fagaceae,
\nVu Quang National Park, Ha Tinh.<\/b><\/i><\/p>\n<\/td>\n

Results on species composition of Fagaceae at the Vu Quang National Park, Ha Tinh provinceAccording to survey, there are 60 species belonging to 14 genera of the Fagaceae found in Vu Quang National Park, Ha Tinh province. In particular, there are 37 species of Lithocarpus<\/i> (61.67%); 12 Quercus<\/i> species (20%); 9 species of Castanopsis<\/i> (15%) and 1 Castanea<\/i> species (1.67%). There are 35 species and 1 genus first recorded in the study area. Vu Quang National Park has 10 species of Fagaceae listed in the Red Data Book of Viet Nam (2007). According to utilization value, there are 35 species for timber trees, 10 species for fruit and tannin and one species is used as ornamental plant.<\/p>\n

 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A M\u1eacT \u0110\u1ed8 TR\u1ed2NG \u0110\u1ebeN SINH TR\u01af\u1edeNG
\nC\u1ee6A C\u00c1C GI\u1ed0NG TR\u00c0M (Melaleuca) \u1ede TH\u1ea0NH H\u00d3A – LONG AN<\/p>\n

Ph\u1ea1m Th\u1ebf D\u0169ng
\nVi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/i><\/i><\/p>\n\n\n\n\n
\n

T\u1eeb kh\u00f3a: <\/i><\/b>M\u1eadt \u0111\u1ed9, sinh tr\u01b0\u1edfng, xu\u1ea5t x\u1ee9, tr\u00e0m melaleuca.<\/i><\/p>\n

\u00a0<\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeTM\u1eadt \u0111\u1ed9 tr\u1ed3ng r\u1eebng c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng v\u00e0 chi ph\u00ed tr\u1ed3ng r\u1eebng. Tuy nhi\u00ean, t\u00f9y theo m\u1ee5c \u0111\u00edch tr\u1ed3ng, quy c\u00e1ch s\u1ea3n ph\u1ea9m g\u1ed7 v\u00e0 chu k\u1ef3 nu\u00f4i r\u1eebng m\u00e0 l\u1ef1a ch\u1ecdn m\u1eadt \u0111\u1ed9 tr\u1ed3ng th\u00edch h\u1ee3p nh\u1ea5t. C\u00e2y tr\u00e0m tr\u1ed3ng v\u1edbi m\u1ee5c \u0111\u00edch cung c\u1ea5p c\u1eeb (d\u00e0i 4m v\u00e0 \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea7u nh\u1ecf > 4cm) ng\u01b0\u1eddi ta \u0111\u00e3 tr\u1ed3ng t\u1edbi g\u1ea7n 40.000 c\u00e2y \/ha \u0111\u1ed1i v\u1edbi gi\u1ed1ng tr\u00e0m n\u1ed9i \u0111\u1ecba. T\u1eeb n\u0103m 1994, nhi\u1ec1u gi\u1ed1ng tr\u00e0m nh\u1eadp n\u1ed9i t\u1eeb \u00d4xtr\u00e2ylia \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng th\u1eed nghi\u1ec7m \u1edf \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long. Nh\u00ecn chung, c\u00e1c gi\u1ed1ng tr\u00e0m n\u00e0y c\u00f3 sinh tr\u01b0\u1edfng nhanh. B\u00e0i vi\u1ebft n\u00e0y gi\u1edbi thi\u1ec7u \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 tr\u1ed3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c lo\u00e0i v\u00e0 c\u00e1c gi\u1ed1ng tr\u00e0m nh\u1eadp n\u1ed9i \u0111\u00e3 qua kh\u1ea3o nghi\u1ec7m so v\u1edbi c\u00e1c gi\u1ed1ng tr\u00e0m n\u1ed9i \u0111\u1ecba \u0111\u1ec3 b\u1ea1n \u0111\u1ecdc tham kh\u1ea3o. K\u1ebft qu\u1ea3 cho th\u1ea5y: v\u1edbi m\u1ee5c ti\u00eau tr\u1ed3ng r\u1eebng l\u1ea5y c\u1eeb, m\u1eadt \u0111\u1ed9 tr\u1ed3ng c\u00e1c lo\u00e0i tr\u00e0m nh\u1eadp n\u1ed9i (M.leucadendra <\/i>v\u00e0 M.viridiflora)<\/i> n\u00ean t\u1eeb kho\u1ea3ng 6666 c\u00e2y\/ha \u0111\u1ebfn 10000 c\u00e2y\/ha. C\u00f2n \u0111\u1ed1i v\u1edbi tr\u00e0m n\u1ed9i \u0111\u1ecba (M.cajuputy),<\/i> m\u1eadt \u0111\u1ed9 tr\u1ed3ng n\u00ean kho\u1ea3ng 20000 c\u00e2y\/ha. Th\u00ed nghi\u1ec7m c\u0169ng cho th\u1ea5y sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t thu\u1ed9c v\u1ec1 lo\u00e0i M.leucadendra<\/i>, k\u1ebf ti\u1ebfp l\u00e0 M. viridiflora<\/i>, sau c\u00f9ng l\u00e0 M. cajuputy<\/i>.<\/p>\n

 <\/td>\n<\/tr>\n

\n

Key words<\/i><\/b>: Planted density, growth, provenances, melaleuca.<\/i><\/p>\n<\/td>\n

Effective of planted density on growth of Melaleuca provenances in Thanh Hoa, Long An provinceThe planted density of trees effects on the growth of plantation and planted expense. However, depending on planted purpose, the size of forest products and the length of rotation, the planted density will be decided. The Melaleuca plantation with planted density 40.000 trees\/ha for local provenance is established to supply the poles (the length 4m and diameter of top > 4cm). Sine 1994, a lot of Australia Melaleuca provenance and species have been imported to try in Mekong river delta. General words, they grow very fast to compare with local one. This paper shows the data of effectiveness of planted density of different Melaleuca species and provenances on growth of plantation. Experimental result shows that: the planted density of M.leucadendra<\/i> and M.viridiflora<\/i> should be 6666 – 10000 stocks\/ha with purpose to product a poles. For M.cajuputy<\/i>, the planted density is 20000 stocks\/ha considering to apply. Experiment points the best of growing belongs to M.leucadendra<\/i>, next is M.viridiflora<\/i> and M.cajuputy.<\/i><\/p>\n

 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/b><\/p>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A \u00c1NH S\u00c1NG V\u00c0 PH\u00c2N B\u00d3N
\n\u0110\u1ebeN SINH TR\u01af\u1edeNG C\u00c2Y GI\u1ed4I XANH SAU KHI TR\u1ed2NG<\/p>\n

Phan V\u0103n Th\u1eafng
\nTrung t\u00e2m Nghi\u00ean c\u1ee9u L\u00e2m s\u1ea3n ngo\u00e0i g\u1ed7 – Vi\u1ec7n KHLN Vi\u1ec7t Nam<\/i><\/i><\/p>\n\n\n\n\n
\n

T\u1eeb kho\u00e1<\/i><\/b>: C\u00e2y ch\u1ecbu b\u00f3ng, \u00e1nh s\u00e1ng, b\u00f3n l\u00f3t, \u0111\u1ed9 t\u00e0n che<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Gi\u1ed5i xanh (Michelia mediocris<\/i> Dandy) l\u00e0 lo\u00e0i c\u00e2y g\u1ed7 l\u1edbn b\u1ea3n \u0111\u1ecba. Th\u00ed nghi\u1ec7m \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 t\u00e0n che \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a Gi\u1ed5i xanh \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng d\u01b0\u1edbi t\u00e1n r\u1eebng th\u00f4ng xen keo t\u1ea1i Chi L\u0103ng – L\u1ea1ng S\u01a1n, v\u00e0 tr\u1ed3ng d\u01b0\u1edbi t\u00e1n r\u1eebng t\u1ef1 nhi\u00ean t\u1ea1i Ho\u00e0nh B\u1ed3 – Qu\u1ea3ng Ninh. Th\u00ed nghi\u1ec7m \u1ea3nh h\u01b0\u1edfng c\u1ee7a lo\u1ea1i ph\u00e2n b\u00f3n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a Gi\u1ed5i xanh c\u0169ng \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1ea1i Ho\u00e0nh B\u1ed3, Qu\u1ea3ng Ninh. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y trong th\u1eddi gian 2 n\u0103m \u0111\u1ea7u sau khi tr\u1ed3ng, c\u00e2y Gi\u1ed5i xanh v\u1eabn l\u00e0 c\u00e2y ch\u1ecbu b\u00f3ng, th\u00ed nghi\u1ec7m \u0111\u1ed9 t\u00e0n che 0,25-0,45 th\u00edch h\u1ee3p nh\u1ea5t cho kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u1ea3 v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 chi\u1ec1u cao Gi\u1ed5i xanh. N\u0103m th\u1ee9 3 sau khi tr\u1ed3ng, Gi\u1ed5i xanh v\u1eabn l\u00e0 c\u00e2y ch\u1ecbu b\u00f3ng nh\u1eb9, th\u00edch h\u1ee3p nh\u1ea5t cho sinh tr\u01b0\u1edfng c\u1ea3 v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 chi\u1ec1u cao \u1edf th\u00ed nghi\u1ec7m \u0111\u1ed9 t\u00e0n che 0,0 – 0,25. T\u1eeb 4 n\u0103m tu\u1ed5i tr\u1edf \u0111i Gi\u1ed5i xanh l\u00e0 c\u00e2y \u01b0a s\u00e1ng ho\u00e0n to\u00e0n, th\u00edch h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c chi\u1ebfu s\u00e1ng ho\u00e0n to\u00e0n, th\u00ed nghi\u1ec7m \u0111\u1ed9 t\u00e0n che 0,0 th\u00edch h\u1ee3p nh\u1ea5t cho c\u00e2y sinh tr\u01b0\u1edfng c\u1ea3 v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao. \u0110\u1ed1i v\u1edbi th\u00ed nghi\u1ec7m lo\u1ea1i ph\u00e2n b\u00f3n, th\u00ed nghi\u1ec7m b\u00f3n l\u00f3t cho c\u00e2y Gi\u1ed5i xanh v\u1edbi li\u1ec1u l\u01b0\u1ee3ng 1kg ph\u00e2n g\u00e0 hoai\/h\u1ed1 ho\u1eb7c 0,2kg ph\u00e2n vi sinh S\u00f4ng Gianh\/h\u1ed1 cho sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t trong th\u1eddi gian 3 n\u0103m \u0111\u1ea7u so v\u1edbi th\u00ed nghi\u1ec7m b\u00f3n 0,1kg NPK v\u00e0 c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng. Che b\u00f3ng cho c\u00e2y Gi\u1ed5i xanh sau khi tr\u1ed3ng l\u00e0 c\u1ea7n thi\u1ebft, nh\u01b0ng \u0111\u1ed9 t\u00e0n che c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u1edf c\u00e1c n\u0103m sau \u0111\u1ec3 cung c\u1ea5p \u00e1nh s\u00e1ng th\u00fac \u0111\u1ea9y sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y. Ph\u00e2n b\u00f3n h\u1eefu c\u01a1 ph\u00f9 h\u1ee3p v\u1edbi sinh tr\u01b0\u1edfng c\u1ee7a Gi\u1ed5i xanh.<\/td>\n<\/tr>\n
\n

Keywords:<\/i><\/b> Shade-tolerent, organic fertiliser, light demand<\/i><\/p>\n<\/td>\n

Growth response of Michelia mediocris<\/i> Dandy planted under different levels of canopy openness and different types of fertilisersMichelia mediocris<\/i> Dandy. is a native-tree, evergreen broadleaf species. Growth responses of M. mediocris<\/i> seedlings to different light conditions were tested by planting under different canopy openness levels of mixed Pinus massoniana<\/i> and Acacia mangium<\/i> plantation in Chi Lang, Lang Son and under degraded natural forest in Hoanh Bo, Quang Ninh. The effect of different types of fertiliser on seedling growth was also tested in Hoanh Bo, Quang Ninh. Results showed that, diameter and height growth were significantly higher in the treatment of 0.25 – 0.45 canopy openness, which suggested that the species is shade-tolerant in the seedling stage. However, at age 3 years, the demand for light become higher which was shown by better growth rates of both diameter and height in the canopy openness of 0.0 – 0.25. At age 4 years, the saplings grew best in the treatment of 0.0 canopy openess which indecated that the species become light demander at this age. For fertiliser, seedling growth was significantly higher in the treatment of fertilising with 1kg compost of chicken waste\/seedling and 0.2kg Song Gianh micro-organic fertiliser\/seedling in comparison with the treatment of 0.1kg NPK (5 : 10 : 3) and the control. Shading is important for early establishment and growth of M. mediocris<\/i> seedlings, but adjustment of shading level when tree grow up is needed to facilitate seedling growth. Organic fertilisers are suitable for fertilising M. mediocris<\/i> seedlings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

NGHI\u00caN C\u01af\u0301U BI\u00ca\u0323N PHA\u0301P KY\u0303 THU\u00c2\u0323T TR\u00d4\u0300NG R\u01af\u0300NG PHO\u0300NG H\u00d4\u0323 VU\u0300NG \u0110\u00d4\u0300I NU\u0301I VEN BI\u00ca\u0309N TI\u0309NH PHU\u0301 Y\u00caN<\/p>\n

Vo\u0303 \u0110a\u0323i Ha\u0309i1<\/sup>, Hoa\u0300ng Phu\u0301 My\u03032<\/sup>
\n1<\/sup>Vi\u00ea\u0323n KHLN Vi\u00ea\u0323t Nam,
\n2<\/sup>Ban qua\u0309n ly\u0301 ca\u0301c d\u01b0\u0323 a\u0301n l\u00e2m nghi\u00ea\u0323p<\/i><\/i><\/p>\n\n\n\n\n
T\u1eeb kh\u00f3a:<\/i><\/b> K\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng, r\u1eebng ph\u00f2ng h\u1ed9, v\u00f9ng \u0111\u1ed3i n\u00fai ven bi\u1ec3n, t\u1ec9nh Ph\u00fa Y\u00ean, Sao \u0111en, Lim xanh, D\u00e2\u0300u ra\u0301i, Mu\u00f4\u0300ng \u0111en, Thanh th\u00e2\u0301t<\/i><\/p>\n

\u00a0<\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf v\u00f9ng \u0111\u1ed3i n\u00fai ven bi\u1ec3n t\u1ec9nh Ph\u00fa Y\u00ean nh\u1eb1m m\u1ee5c \u0111\u00edch l\u1ef1a ch\u1ecdn c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt tr\u1ed3ng r\u1eebng v\u00e0 nh\u1eefng lo\u00e0i c\u00e2y tr\u1ed3ng ph\u00f9 h\u1ee3p. Nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a 5 lo\u00e0i c\u00e2y \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u0111\u1ea1t kh\u00e1 cao t\u1eeb 75-87,1%, l\u01b0\u01a1\u0323ng t\u0103ng tr\u01b0\u01a1\u0309ng bi\u0300nh qu\u00e2n v\u00ea\u0300 \u0111\u01b0\u01a1\u0300ng ki\u0301nh \u0111a\u0323t 1,1 – 1,4 cm\/n\u0103m; t\u0103ng tr\u01b0\u01a1\u0309ng bi\u0300nh qu\u00e2n v\u00ea\u0300 chi\u1ec1u cao t\u1ed5ng s\u1ed1 l\u00e0 0,8-1,2 m\/n\u0103m, trong \u0111o\u0301 ca\u0301c loa\u0300i Sao \u0111en, Lim xanh, Thanh th\u00e2\u0301t to\u0309 ra phu\u0300 h\u01a1\u0323p h\u01a1n so v\u01a1\u0301i D\u1ea7u r\u00e1i v\u00e0 Mu\u1ed3ng \u0111en. Bi\u00ea\u0323n pha\u0301p x\u01b0\u0309 ly\u0301 th\u01b0\u0323c bi\u0300 theo b\u0103ng co\u0301 a\u0309nh h\u01b0\u01a1\u0309ng t\u00f4\u0301t h\u01a1n so v\u01a1\u0301i bi\u00ea\u0323n pha\u0301p x\u01b0\u0309 ly\u0301 th\u01b0\u0323c bi\u0300 toa\u0300n di\u00ea\u0323n. Ca\u0301c loa\u0300i Sao \u0111en, D\u00e2\u0300u ra\u0301i, tr\u00f4\u0300ng h\u00f4\u0303n giao trong ha\u0300ng cho ty\u0309 l\u00ea\u0323 s\u00f4\u0301ng, sinh tr\u01b0\u01a1\u0309ng t\u00f4\u0301t h\u01a1n so v\u01a1\u0301i tr\u00f4\u0300ng h\u00f4\u0303n giao theo ha\u0300ng. Sau 6 n\u0103m tr\u00f4\u0300ng, ty\u0309 l\u00ea\u0323 s\u00f4\u0301ng cu\u0309a ca\u0301c loa\u0300i Sao \u0111en, D\u00e2\u0300u ra\u0301i, Thanh th\u00e2\u0301t tr\u00f4\u0300ng h\u00f4\u0303n giao trong ha\u0300ng \u0111a\u0323t ty\u0309 l\u00ea\u0323 s\u00f4\u0301ng 82,2 – 85,7%, l\u01b0\u01a1\u0323ng t\u0103ng tr\u01b0\u01a1\u0309ng bi\u0300nh qu\u00e2n ha\u0300ng n\u0103m v\u00ea\u0300 \u0111\u01b0\u01a1\u0300ng ki\u0301nh 1,12 – 1,4 cm\/n\u0103m, chi\u00ea\u0300u cao 0,78 – 1,08 m\/n\u0103m, ty\u0309 l\u00ea\u0323 c\u00e2y ph\u00e2\u0309m ch\u00e2\u0301t x\u00e2\u0301u chi\u0309 chi\u00ea\u0301m 6,6 – 12,5%, trong khi \u0111o\u0301 ca\u0301c loa\u0300i c\u00e2y na\u0300y tr\u00f4\u0300ng h\u00f4\u0303n giao trong ha\u0300ng chi\u0309 \u0111a\u0323t ty\u0309 l\u00ea\u0323 s\u00f4\u0301ng 79,5 – 82,4%, l\u01b0\u01a1\u0323ng t\u0103ng tr\u01b0\u01a1\u0309ng bi\u0300nh qu\u00e2n ha\u0300ng n\u0103m v\u00ea\u0300 \u0111\u01b0\u01a1\u0300ng ki\u0301nh \u0111a\u0323t 0,97 – 1,2 cm\/n\u0103m, chi\u00ea\u0300u cao \u0111a\u0323t 0,72 – 0,93 m\/n\u0103m, ty\u0309 l\u00ea\u0323 c\u00e2y ph\u00e2\u0309m ch\u00e2\u0301t x\u00e2\u0301u dao \u0111\u00f4\u0323ng 10,1 – 11,7%.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> Planting techniques, protection forest, coastal hilly-mountainous areas, Phu Yen province, Hopea odorata, Erythrophloeum fordii, Dipterocarpus alatus, <\/i>Cassia siamea, Ailanthus malabarica<\/i><\/p>\n<\/td>\n

Research on protection forest planting techniques in coastal hilly-mountainous areas, Phu Yen provinceThe research was carried out on coastal hilly-mountainous areas of Phu Yen province aiming at selection of suitable tree species and planting techniques. Research results show that survival rate of 5 trial tree species is rather high: 75.0 – 87.1%, MAI of diameter is 1.1 – 1.4 cm\/year; MAI of total height is 0.8 – 1.2 m\/year, of which Hopea odorata, Erythrophloeum fordii, <\/i>Ailanthus malabarica<\/i> are more suitable compared to Cassia siamea <\/i>and Dipterocarpus alatus<\/i>. Ground vegetation cover treatment in strips is more effective than treatment one in the whole area. Hopea odorata, Dipterocarpus alatus<\/i> mixed planted in rows have higher survival and growth rate compared to mixed planted one by rows. After 6 years since planting, survival rate of Hopea odorata, Dipterocarpus alatus <\/i>and <\/i>Ailanthus malabarica<\/i> mixed planted in rows is 82.2 – 85.7%, MAI of diameter is 1.12 – 1.4 cm\/year, MAI of height is 0.78 – 1.08 m\/year, rate of poor trees occupied only 6.6 – 12.5%, whereas these trees mixed planted in rows have survival rate only 79.5 – 82.4%, MAI of diameter is 0.97 – 1.2 cm\/year, MAI of height is 0.72 – 0.93 m\/year, poor trees occupied 10.1 – 11.7%.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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BI\u1ebeN \u0110\u1ed8NG CH\u1ea4T L\u01af\u1ee2NG C\u00c2Y TRONG C\u00c1C M\u00d4 H\u00ccNH R\u1eeaNG TR\u1ed2NG SAO \u0110EN (Hopea odorata)<\/i> V\u00c0 D\u1ea6U R\u00c1I (Dipterocarpus alatus)<\/i>
\nT\u1ea0I KHU B\u1ea2O T\u1ed2N THI\u00caN NHI\u00caN – V\u0102N H\u00d3A \u0110\u1ed2NG NAI<\/p>\n

B\u00f9i Vi\u1ec7t H\u1ea3i1<\/sup>, T\u00f4 B\u00e1 Thanh2<\/sup>, Ph\u1ea1m Xu\u00e2n Ho\u00e0n3
\n<\/sup>[1]<\/b><\/i> Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m TP. H\u1ed3 Ch\u00ed Minh
\n2 Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean v\u00e0 V\u0103n ho\u00e1 \u0110\u1ed3ng Nai
\n3 \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p <\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a: <\/i><\/b>Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean-v\u0103n h\u00f3a \u0110\u1ed3ng Nai, r\u1eebng tr\u1ed3ng, Sao \u0111en. D\u1ea7u r\u00e1i<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c tr\u01b0ng c\u01a1 b\u1ea3n v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng trong c\u00e1c m\u00f4 h\u00ecnh ph\u1ee5c h\u1ed3i r\u1eebng c\u00e2y b\u1ea3n \u0111\u1ecba g\u1ed7 l\u1edbn b\u1eb1ng Sao \u0111en v\u00e0 D\u1ea7u r\u00e1i t\u1ea1i Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean-v\u0103n h\u00f3a \u0110\u1ed3ng Nai nh\u1eb1m x\u00e1c \u0111\u1ecbnh t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng theo c\u00e1c k\u1ef9 thu\u1eadt tr\u1ed3ng kh\u00e1c nhau. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y: i) Ph\u01b0\u01a1ng ph\u00e1p tr\u1ed3ng \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng r\u00f5 t\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng; nh\u00ecn chung t\u1ef7 l\u1ec7 s\u1ed1ng lo\u00e0i Sao \u0111en th\u1ea5p h\u01a1n so v\u1edbi D\u1ea7u r\u00e1i, nh\u01b0ng sai l\u1ec7ch kh\u00f4ng c\u00f3 \u00fd ngh\u0129a v\u1ec1 th\u1ed1ng k\u00ea; ii). T\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a nh\u1eefng lo\u00e0i n\u00e0y c\u00f2n c\u00f3 quan h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi th\u1eddi gian (tu\u1ed5i). Nguy\u00ean nh\u00e2n d\u1eabn t\u1edbi nh\u1eefng bi\u1ebfn \u0111\u1ed9ng v\u1ec1 m\u1eadt \u0111\u1ed9 hi\u1ec7n t\u1ea1i ph\u1ee5 thu\u1ed9c kh\u00f4ng ch\u1ec9 v\u00e0o lo\u1ea1i \u0111\u1ea5t m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt tr\u1ed3ng; v\u00e0 iii). \u1ede c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea5t \u0111ai, ph\u01b0\u01a1ng th\u1ee9c v\u00e0 quy c\u00e1ch tr\u1ed3ng kh\u00e1c nhau th\u00ec t\u1ef7 l\u1ec7 c\u00e2y c\u00f3 ph\u1ea9m ch\u1ea5t t\u1ed1t v\u1eabn lu\u00f4n nhi\u1ec1u h\u01a1n r\u1ea5t \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e2y trung b\u00ecnh v\u00e0 c\u00e2y x\u1ea5u. \u1ede c\u00e1c giai \u0111o\u1ea1n tu\u1ed5i kh\u00e1c nhau D\u1ea7u r\u00e1i v\u1eabn cho t\u1ef7 l\u1ec7 c\u00e2y t\u1ed1t nhi\u1ec1u h\u01a1n so v\u1edbi Sao \u0111en.<\/td>\n<\/tr>\n
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Key words:<\/i><\/b> Dongnai Culture Nature Reserve, Dipterocarpus alatus, Hopea odorata, forest plantation<\/i><\/i><\/p>\n<\/td>\n

Tree quality change of Hopea odorata<\/i> and Dipterocarpus alatus<\/i> plantation models in Dong Nai culture nature reserveThe study of feature changes the quantity and quality of plants in the plantation model of large and native timber trees (Hopea odorata <\/i>and <\/i>Dipterocarpus alatus<\/i>)<\/i> in the Area of Natural Conservation, Dong Nai province, to determine fluctuations characterize the survival rate and plantation quality in the different growing techniques. Topical use of survey methods, data collection on the typical plots. The results are: i) Each type of planting methods and specifications that affect plant survival of the species. Overall, survival of H.odorata<\/i> lower than D.alatus<\/i>, but deviations are not significant statistically; ii) Survival of the species of plants is a factor closely related to time. The cause of the fluctuations in the current density of trees depends not only on the type of soil, planting methods, planting specifications; and iii) In the planting methods and specifications vary the rate of good quality trees are always more significant than mean plants and bad plants. At various stages of the species, D.alatus<\/i> is rather good for rate than H.odorata<\/i>.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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K\u00ca\u0301T QUA\u0309 \u0110A\u0301NH GIA\u0301 B\u01af\u01a0\u0301C \u0110\u00c2\u0300U V\u00ca\u0300 TH\u01af\u0309 NGHI\u00ca\u0323M TR\u00d4\u0300NG M\u00d4\u0323T S\u00d4\u0301 LOA\u0300I C\u00c2Y MO\u0323C NHANH, C\u00c2Y BA\u0309N \u0110I\u0323A CO\u0301 GIA\u0301 TRI\u0323 KINH T\u00ca\u0301 TRONG TR\u00d4\u0300NG R\u01af\u0300NG VA\u0300 LA\u0300M GIA\u0300U R\u01af\u0300NG \u01a0\u0309 VU\u0300NG \u0110\u00d4NG NAM B\u00d4\u0323<\/p>\n

Ph\u1ea1m Th\u1ebf D\u0169ng
\nVi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kho\u00e1<\/i><\/b>: <\/i>C\u00e2y b\u1ea3n \u0111\u1ecba, c\u00e2y m\u1ecdc nhanh, l\u00e0m gi\u00e0u r\u1eebng, tr\u1ed3ng r\u1eebng.<\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>S\u1eed d\u1ee5ng c\u00e2y m\u1ecdc nhanh trong tr\u1ed3ng r\u1eebng \u0111\u00e1p \u1ee9ng nguuy\u00ean li\u1ec7u g\u1ed7 \u0111\u00e3 \u0111\u01b0\u1ee3c Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9 nghi\u00ean c\u1ee9u t\u1eeb n\u0103m 2002. \u0110\u1ebfn nay, sau h\u01a1n 10 n\u0103m tr\u1ed3ng r\u1eebng, k\u1ebft qu\u1ea3 cho th\u1ea5y c\u00f3 6 lo\u00e0i c\u00e2y c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u1ed3ng r\u1eebng \u1edf v\u00f9ng \u0110\u00f4ng Nam B\u1ed9 \u0111\u00f3 l\u00e0: Thanh th\u1ea5t, L\u00f5i Th\u1ecd, Th\u00fai, L\u00e1t Mehic\u00f4, Mu\u1ed3ng \u0111en v\u00e0 G\u00e1o. M\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, g\u1ed7 qu\u00fd c\u00f3 th\u1ec3 g\u00e2y tr\u1ed3ng v\u1eeba cung c\u1ea5p g\u1ed7 v\u1eeba c\u00f3 gi\u00e1 tr\u1ecb b\u1ea3o t\u1ed3n ngu\u1ed3n gen \u0111\u00f3 l\u00e0 c\u00e1c lo\u00e0i: Lim xanh, Tr\u00f4m, G\u1ee5 m\u1eadt, C\u1ea9m Lai B\u00e0 R\u1ecba. \u0110\u1ed1i v\u1edbi l\u00e0m gi\u00e0u r\u1eebng s\u1eed d\u1ee5ng c\u00e1c lo\u00e0i Lim xanh, Mu\u1ed3ng \u0111en, X\u00e0 c\u1eeb, Nh\u1ea1c ng\u1ef1a, Chi\u00eau li\u00eau tr\u1ed3ng trong c\u00e1c r\u1ea1ch r\u1ed9ng 4m, b\u0103ng ch\u1eeba 6m trong c\u00e1c r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t l\u00e0 r\u1ea5t c\u00f3 tri\u1ec3n v\u1ecdng. Tr\u1eef l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng t\u1ef1 nhi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e2ng cao r\u00f5 r\u1ec7t<\/td>\n<\/tr>\n
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Key words:<\/i><\/b> Native tree species, fast growing tree, forest enrichment, reforestation<\/i><\/p>\n<\/td>\n

Resuls of preliminary assessment on experimental planting of fast growing tree species, native one with economical value to use in reforestation and natural forest enrichment in South-Eastern regionThe study on fast growing and native tree species to meet wood demands has been done by Forest Science Institute of South Vietnam from 2002 up to now. Today, after 8 years of study the research, result shows that:<\/p>\n

– <\/i>Six of fast growing species which are: Gao vang – <\/i><\/b>Nauclea orientalist <\/i>L.; Sarcocophalus coadulata <\/i>Druce, <\/i>Family: <\/i>Rubiaceae; <\/i>Thanh That <\/i><\/b>– <\/b>Allanthus triphysa, <\/i>Family: <\/i>Simaroubaceae; <\/i>Loi Tho<\/b> – Gmelina arborea<\/i> Roxb. <\/i>Family: Verbenaceae.; Thui <\/b>– Parkia sumatrana<\/i>. <\/i>MiQ. Subsp; <\/i>Xa Cu <\/i><\/b>– Khaya senegalensis<\/i> A.Juss, Family: Meliaceae, ware determined; <\/i><\/p>\n

– <\/i>The native species with high wood value in South-East region consists of Lim Xanh – <\/b>Erythrophloeum fordii<\/i> Oliv, family: Caesalpiniacea;, Trom hoi – <\/b>Sterculia foetida<\/i> L, <\/b>Family: Sterculiaceae; Gu mat –<\/b> Sindora siamensis<\/i>, family: Caesalpiniaceae; Cam lai Ban Ria<\/b> –<\/b> Dalbergia bariaensis<\/i> Piere, Family: Fabaceae are suitable to plant for wood product and genitive conservation.<\/p>\n

Five native species are suitable for natural rehabilitation and enriching in Southeast region. They are: Lim Xanh – <\/b>Erythrophloeum fordii<\/i> Oliv, Mu\u1ed3ng \u0111en<\/b> – Cassia siamea<\/i> Lamk, Xa Cu<\/b> – Khaya senegalensis<\/i> A.Juss, Nhac ngua<\/b> – Swietenia mcrophylla<\/i>, Chieu Lieu<\/b> – Ternrinalia superba<\/i>.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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NGHI\u00caN C\u1ee8U X\u00c1C \u0110\u1ecaNH VAI TR\u00d2 C\u1ee6A M\u1ed8T S\u1ed0 Y\u1ebeU T\u1ed0
\nLI\u00caN QUAN \u0110\u1ebeN X\u00d3I M\u00d2N \u0110\u1ea4T \u1ede N\u01af\u1edaC TA<\/p>\n

Nguy\u1ec5n V\u0103n Khi\u1ebft
\nTr\u01b0\u1eddng C\u00e1n b\u1ed9 qu\u1ea3n l\u00fd N\u00f4ng nghi\u1ec7p v\u00e0 PTNT 1<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a<\/i><\/b>: X\u00f3i m\u00f2n \u0111\u1ea5t, nghi\u00ean c\u1ee9u v\u1ec1 x\u00f3i m\u00f2n \u0111\u1ea5t, y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u00f3i m\u00f2n \u0111\u1ea5t.<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>B\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 t\u1ed5ng h\u1ee3p m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u v\u1ec1 x\u00f3i m\u00f2n \u0111\u1ea5t, v\u1ec1 c\u01a1 b\u1ea3n c\u00e1c c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u \u0111\u00e3 l\u00e0m r\u00f5 \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng x\u00f3i m\u00f2n \u0111\u1ea5t, x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c y\u1ebfu t\u1ed1 g\u00e2y x\u00f3i m\u00f2n v\u00e0 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u00f3i m\u00f2n \u0111\u1ea5t. Y\u1ebfu t\u1ed1 g\u00e2y x\u00f3i m\u00f2n \u0111\u1ea5t l\u00e0 t\u00ednh g\u00e2y x\u00f3i m\u00f2n c\u1ee7a m\u01b0a v\u00e0 t\u00ednh g\u00e2y x\u00f3i m\u00f2n c\u1ee7a \u0111\u1ea5t. Y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u00f3i m\u00f2n l\u00e0 \u0111\u1ecba h\u00ecnh, th\u1ef1c v\u1eadt v\u00e0 c\u00e1c t\u00e1c \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi th\u00f4ng qua c\u00e1c m\u00f4 h\u00ecnh s\u1eed d\u1ee5ng \u0111\u1ea5t. \u0110\u00e2y l\u00e0 c\u01a1 s\u1edf khoa h\u1ecdc \u0111\u1ec3 c\u00e1c t\u00e1c gi\u1ea3 x\u00e2y d\u1ef1ng c\u00e1c m\u1ed1i quan h\u1ec7 t\u01b0\u01a1ng quan v\u00e0 ph\u01b0\u01a1ng tr\u00ecnh d\u1ef1 b\u00e1o x\u00f3i m\u00f2n \u0111\u1ea5t, \u0111\u1ed3ng th\u1eddi \u0111\u1ec1 xu\u1ea5t c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 \u0111\u1ea5t c\u0169ng nh\u01b0 x\u00e1c \u0111\u1ecbnh ti\u00eau chu\u1ea9n th\u1ea3m th\u1ef1c v\u1eadt ph\u00f2ng h\u1ed9.<\/td>\n<\/tr>\n
\n

Key words<\/i><\/b>: Soil erosion, studies on soil erosion, some factors effecting soil erosion.<\/i><\/p>\n<\/td>\n

Research on determining the role of some factors related to soil erosion in VietnamThis article has compiled a number of studies on soil erosion, which have clarified the nature of soil erosion, and identified factors cause soil erosion and affect soil erosion. Rain and soil are factors causing soil erosion. Factors affecting soil erosion are topography, vegetation and human impact through land-use. This is the scientific basis for researchers to build correlations and erosion prediction equation, as well as take measures to protect soil and build vegetation standards of protection.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A BI\u1ebeN \u0110\u1ed4I KH\u00cd H\u1eacU \u0110\u1ebeN NGUY C\u01a0 CH\u00c1Y R\u1eeaNG
\n\u1ede V\u00d9NG T\u00c2Y B\u1eaeC VI\u1ec6T NAM<\/p>\n

L\u00ea S\u1ef9 Doanh, B\u1ebf Minh Ch\u00e2u
\nTr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/i><\/p>\n\n\n\n\n
\n

T\u1eeb kho\u00e1: <\/i><\/b>Bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, ch\u1ec9 s\u1ed1 Nesterop, d\u1ef1 b\u00e1o, k\u1ecbch b\u1ea3n, ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y r\u1eebng<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Trong khung c\u1ea3nh c\u00e1c qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu (B\u0110KH) \u0111ang di\u1ec5n ra m\u1ea1nh m\u1ebd v\u00e0 ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p, T\u00e2y B\u1eafc l\u00e0 m\u1ed9t trong nh\u1eefng v\u00f9ng ch\u1ecbu t\u00e1c \u0111\u1ed9ng m\u1ea1nh nh\u1ea5t c\u1ee7a n\u01b0\u1edbc ta do \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ecba h\u00ecnh ph\u1ee9c t\u1ea1p v\u00e0 tr\u00ecnh \u0111\u1ed9 ph\u00e1t tri\u1ec3n c\u00f2n th\u1ea5p, kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng k\u00e9m h\u01a1n so v\u1edbi m\u1eb7t b\u1eb1ng chung c\u1ea3 n\u01b0\u1edbc. Nghi\u00ean c\u1ee9u n\u00e0y c\u00f3 m\u1ee5c ti\u00eau l\u00e0m s\u00e1ng t\u1ecf \u1ea3nh h\u01b0\u1edfng c\u1ee7a B\u0110KH \u0111\u1ebfn nguy c\u01a1 ch\u00e1y r\u1eebng \u1edf v\u00f9ng T\u00e2y B\u1eafc. K\u1ebft qu\u1ea3 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ch\u1ec9 s\u1ed1 kh\u00ed h\u1eadu Qi ph\u1ea3n \u00e1nh nguy c\u01a1 ch\u00e1y r\u1eebng cho khu v\u1ef1c T\u00e2y B\u1eafc l\u00e0: Qi = Ki<\/sub>*Ti<\/sub>*abs(Ri<\/sub>-100)^0,3; khi \u0111\u00f3 s\u1ed1 ng\u00e0y c\u00f3 nguy c\u01a1 ch\u00e1y cao \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo ph\u01b0\u01a1ng tr\u00ecnh sau: Snc45 = 67,245*Qi + 0,603; v\u1edbi R2<\/sup> = 0,5998. T\u00ednh trung b\u00ecnh cho v\u00f9ng T\u00e2y B\u1eafc s\u1ed1 ng\u00e0y c\u00f3 nguy c\u01a1 ch\u00e1y r\u1eebng cao s\u1ebd t\u0103ng l\u00ean t\u1eeb 61 ng\u00e0y\/n\u0103m th\u1eddi k\u1ef3 2000 t\u0103ng l\u00ean 80 ng\u00e0y\/n\u0103m v\u00e0o th\u1eddi k\u1ef3 n\u0103m 2090, nh\u01b0 v\u1eady sau g\u1ea7n 1 th\u1ebf k\u1ef7 s\u1ed1 ng\u00e0y c\u00f3 nguy c\u01a1 ch\u00e1y r\u1eebng cao \u0111\u00e3 t\u0103ng th\u00eam kho\u1ea3ng 20 ng\u00e0y\/n\u0103m. \u1ede th\u1eddi \u0111i\u1ec3m 2090, S\u01a1n La l\u00e0 t\u1ec9nh c\u00f3 nguy c\u01a1 ch\u00e1y r\u1eebng cao nh\u1ea5t v\u1edbi 101,8 ng\u00e0y\/n\u0103m \u0111\u1ee9ng th\u1ee9 hai l\u00e0 H\u00f2a B\u00ecnh v\u1edbi 77,4 ng\u00e0y\/n\u0103m; th\u1ee9 3 l\u00e0 \u0110i\u1ec7n Bi\u00ean v\u1edbi 70,7 ng\u00e0y\/n\u0103m v\u00e0 Lai Ch\u00e2u l\u00e0 t\u1ec9nh c\u00f3 nguy c\u01a1 ch\u00e1y th\u1ea5p nh\u1ea5t v\u1edbi 55,2 ng\u00e0y\/n\u0103m. Trong 4 t\u1ec9nh H\u00f2a B\u00ecnh lu\u00f4n l\u00e0 t\u1ec9nh c\u00f3 m\u00f9a ch\u00e1y r\u1eebng b\u1eaft \u0111\u1ea7u mu\u1ed9n nh\u1ea5t v\u00e0o \u0111\u1ea7u th\u00e1ng 11 v\u00e0 S\u01a1n La lu\u00f4n l\u00e0 t\u1ec9nh c\u00f3 m\u00f9a ch\u00e1y r\u1eebng b\u1eaft \u0111\u1ea7u s\u1edbm v\u00e0 k\u1ebft th\u00fac mu\u1ed9n nh\u1ea5t: b\u1eaft \u0111\u1ea7u v\u00e0o th\u00e1ng 10 v\u00e0 k\u1ebft th\u00fac v\u00e0o \u0111\u1ea7u th\u00e1ng 4 h\u00e0ng n\u0103m. M\u1ed9t s\u1ed1 gi\u1ea3i ph\u00e1p nh\u1eb1m gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a B\u0110KH \u0111\u1ebfn nguy c\u01a1 ch\u00e1y r\u1eebng \u1edf v\u00f9ng T\u00e2y B\u1eafc \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u \u0111\u1ec1 xu\u1ea5t \u01b0u ti\u00ean s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 nh\u01b0 sau: (1) Nh\u00f3m gi\u1ea3i ph\u00e1p I: Tuy\u00ean truy\u1ec1n, gi\u00e1o d\u1ee5c n\u00e2ng cao nh\u1eadn th\u1ee9c c\u1ee7a c\u1ed9ng \u0111\u1ed3ng v\u1ec1 c\u00f4ng t\u00e1c PCCCR; (2) – Nh\u00f3m gi\u1ea3i ph\u00e1p II: N\u00e2ng cao n\u0103ng l\u1ef1c PCCCR t\u1ea1i c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng; (3) – Nh\u00f3m gi\u1ea3i ph\u00e1p III: \u0110\u1ea9y m\u1ea1nh \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00f4ng t\u00e1c PCCCR.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> climate change, forecasts, scenarios, forest fires prevention and suppression, the Nesterop<\/i><\/p>\n<\/td>\n

Impact of climate change on forest fire risk in the Northwest VietnamIn the context of climate change is happening more and more powerful and complex, Northwest is one of the most affected areas of the country due to the complex terrain and level of development is low, less adaptable than the national average level. This study aims to elucidate the effects of climate change on fire risk in the Northwest. Results have identified have identified climate index reflects Qi fire risk for the North West region: Qi = Ki*Ti*abs(Ri – 100)^0.3, while the number of days at risk high fire is determined according to the following equation: Snc45 = 67.245*Qi + 0.603, with R2<\/sup> = 0.5998. Average number of days for the North West have a high risk of wildfires will increase from 61 days\/year in the period 2000 to 80 days\/year in the period 2090, so nearly one century after several days of high fire risk has increased by about 20 days\/year. At the time of 2090, Son La province has the highest forest fire danger with 101.8 days\/year in, second position is Hoa Binh province with 77.4 days\/year; Dien Bien 3rd with 70.7 days\/year and Lai Chau province has the lowest fire risk with 55.2 days\/year. In the four provinces of Hoa Binh province is always fire season began in early November at the latest and Son La provinces have always been fire season starts earlier and ends later: starting in October and ending in early 4 every year. A number of solutions to mitigate the impact of climate change on fire risk in the Northwest was studied using the proposed priority as follows: (1) Solutions Group I: Propaganda, higher education community awareness of fire prevention work; (2) Solutions II: capacity building at the local fire prevention; (3) Solutions Group III: Promote the application of silvicultural measures to enhance the effectiveness of fire prevention work.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u01a0 H\u1ed8I V\u00c0 TH\u00c1CH TH\u1ee8C C\u1ee6A H\u1ec6 TH\u1ed0NG V\u01af\u1edcN \u01af\u01a0M C\u1ea4P N\u00d4NG H\u1ed8 \u1ede T\u1ec8NH S\u01a0N LA V\u00c0 MI\u1ec0N N\u00daI PH\u00cdA B\u1eaeC VI\u1ec6T NAM<\/p>\n

V\u0169 V\u0103n Thu\u1eadn*1<\/sup>, \u0110o\u00e0n \u0110\u1ee9c L\u00e2n1<\/sup>, Nguy\u1ec5n Th\u1ecb H\u00f2a2<\/sup>,
\nDumas-Johansen, Marc Kristof 2<\/sup>, Ho\u00e0ng Minh H\u00e02<\/sup>, Roshetko James M 2
\n<\/sup>1<\/sup><\/i>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc T\u00e2y B\u1eafc; 2<\/sup>T\u1ed5 ch\u1ee9c Nghi\u00ean c\u1ee9u N\u00f4ng L\u00e2m th\u1ebf gi\u1edbi (ICRAF)<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a<\/i><\/b>: V\u01b0\u1eddn \u01b0\u01a1m n\u00f4ng h\u1ed9, ngu\u1ed3n gi\u1ed1ng, ch\u1ee9ng nh\u1eadn v\u01b0\u1eddn \u01b0\u01a1m<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b> <\/b>V\u01b0\u1eddn \u01b0\u01a1m c\u1ea5p n\u00f4ng h\u1ed9 gi\u00fap ng\u01b0\u1eddi d\u00e2n c\u00f3 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn v\u1edbi gi\u1ed1ng c\u00e2y tr\u1ed3ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng, tham gia v\u00e0o tr\u1ed3ng c\u00e2y g\u00e2y r\u1eebng v\u00e0 t\u0103ng thu nh\u1eadp. \u0110\u1ec3 hi\u1ec3u r\u00f5 th\u1ef1c tr\u1ea1ng h\u1ec7 th\u1ed1ng v\u01b0\u1eddn \u01b0\u01a1m n\u00f4ng h\u1ed9 v\u00e0 \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p nh\u1eb1m ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng n\u00e0y \u1edf mi\u1ec1n n\u00fai ph\u00eda B\u1eafc Vi\u1ec7t Nam n\u00f3i chung v\u00e0 t\u1ec9nh S\u01a1n La n\u00f3i ri\u00eang, m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai trong giai \u0111o\u1ea1n 2010-2011. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u bao g\u1ed3m: t\u1ed5ng quan t\u00e0i li\u1ec7u, nghi\u00ean c\u1ee9u th\u1ef1c \u0111\u1ecba, ph\u1ecfng v\u1ea5n s\u00e2u b\u00e1n c\u1ea5u tr\u00fac c\u00e1c c\u1ea5p v\u00e0 b\u1ea3ng c\u00e2u h\u1ecfi, h\u1ed9i th\u1ea3o t\u01b0 v\u1ea5n, ph\u00e2n t\u00edch s\u1ed1 li\u1ec7u. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch 9 v\u01b0\u1eddn \u01b0\u01a1m t\u1ea1i 3 huy\u1ec7n M\u1ed9c Ch\u00e2u, Mai S\u01a1n v\u00e0 Thu\u1eadn Ch\u00e2u t\u1ec9nh S\u01a1n La cho th\u1ea5y v\u01b0\u1eddn \u01b0\u01a1m n\u00f4ng h\u1ed9 (VUNH) c\u00f3 quy m\u00f4 bi\u1ebfn \u0111\u1ed9ng t\u1eeb 500 – 2500m2<\/sup> v\u00e0 thu nh\u1eadp m\u1ed7i n\u0103m bi\u1ebfn \u0111\u1ed9ng t\u1eeb 10 – 500 tri\u1ec7u \u0111\u1ed3ng. V\u1edbi quy m\u00f4 nh\u1ecf ch\u1ec9 b\u1eb1ng 1\/10 c\u1ee7a V\u01b0\u1eddn \u01b0\u01a1m Qu\u1ed1c doanh (VUQD), VUNH cho hi\u1ec7u qu\u1ea3 kinh t\u1ebf g\u1ea5p 3 l\u1ea7n. C\u00f3 ti\u1ec1m n\u0103ng th\u1ecb tr\u01b0\u1eddng cho VUNH th\u00f4ng qua c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh, d\u1ef1 \u00e1n tr\u1ed3ng r\u1eebng, nh\u01b0ng l\u1ea1i g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c c\u1ea5p gi\u1ea5y ch\u1ee9ng nh\u1eadn v\u01b0\u1eddn \u01b0\u01a1m. Nh\u1eefng th\u00e1ch th\u1ee9c c\u1ee7a S\u01a1n La \u0111\u00e3 th\u1ec3 hi\u1ec7n t\u00ecnh h\u00ecnh chung c\u1ee7a c\u00e1c t\u1ec9nh mi\u1ec1n n\u00fai ph\u00eda B\u1eafc. C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 h\u1ed7 tr\u1ee3 s\u1ef1 ph\u00e1t tri\u1ec3n VUNH c\u1ea7n bao g\u1ed3m c\u1ea3 ch\u00ednh s\u00e1ch, ph\u1ed5 c\u1eadp, x\u00e2y d\u1ef1ng m\u1ea1ng l\u01b0\u1edbi, h\u1ed7 tr\u1ee3 vi\u1ec7c c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 ti\u1ebfp c\u1eadn th\u1ecb tr\u01b0\u1eddng.<\/td>\n<\/tr>\n
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Keywords: <\/i><\/b>Smallholder nurseries, germplasm, nursery certification<\/i><\/p>\n<\/td>\n

Challenges and opportunities for the system of small-scale nurseries in S\u01a1n La province and Vietnam’s Northern mountain regionSmallholder nurseries (SHN) are known to increase farmers\u2019 accessibility to quality tree seedlings, improve their involvement in forest plantation establishment and improve their income. A study was conducted during 2010-2011 in Son La province to assess the status of private smallholders\u2019 nurseries in the Northern mountainous areas of Vietnamand to define measures to improve those nurseries. The research methods used included a review of literature, field surveys, semi-structure interviews, a consultation workshop, and analyses data. Analyses of nine smallholder nurseries located in 3 districts namely Moc Chau, Mai Son and Thuan Chau (all in Son La province) showed that SHN are of small-scale, with a maximum size of 500 – 2500m2<\/sup> and annual income of 10-500 million VN Dong (US$ 500 – 25000). Additionally, SHN lack market access resulting in restricted sales prospects, mainly due to difficulties in obtaining nursery certification remains difficult. Recommendations to support the development of smallholder nurseries including policy, extension, networking development, certification and market access are discussed.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n


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M\u1ed8T S\u1ed0 \u0110\u1eb6C \u0110I\u1ec2M C\u1ee6A C\u00c1C M\u00d4 H\u00ccNH N\u00d4NG L\u00c2M K\u1ebeT H\u1ee2P CH\u00cdNH \u1ede THANH H\u00d3A<\/p>\n

Ho\u00e0ng V\u0103n Th\u1eafng1<\/sup>, Delia C. Catacutan2<\/sup>, Cao V\u0103n L\u1ea1ng1<\/sup>,
\nNguy\u1ec5n Mai Ph\u01b0\u01a1ng2<\/sup>, Nguy\u1ec5n Ho\u00e0ng Ti\u1ec7p1
\n<\/sup>[1]<\/b><\/i> Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam
\n2 ICRAF Vi\u1ec7t Nam<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a:<\/i><\/b> \u0110\u1eb7c \u0111i\u1ec3m, M\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p ch\u00ednh, Thanh H\u00f3a<\/i><\/i><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Trong giai \u0111o\u1ea1n 2007 – 2012 \u1edf Thanh H\u00f3a c\u00f3 hai m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p ch\u00ednh l\u00e0 s\u1eafn v\u00e0 ng\u00f4 \u0111\u01b0\u1ee3c tr\u1ed3ng xen d\u01b0\u1edbi c\u00e1c r\u1eebng tr\u1ed3ng Keo tai t\u01b0\u1ee3ng trong n\u0103m th\u1ee9 1 v\u00e0 th\u1ee9 2. \u0110\u1ebfn cu\u1ed1i n\u0103m 2012 di\u1ec7n t\u00edch m\u00f4 h\u00ecnh tr\u1ed3ng xen s\u1eafn v\u00e0 ng\u00f4 v\u00e0o r\u1eebng tr\u1ed3ng Keo tai t\u01b0\u1ee3ng \u1edf Thanh H\u00f3a \u0111\u1ea1t kho\u1ea3ng 3257,5ha; t\u0103ng 2079ha so v\u01a1\u0301i n\u0103m 2007, trong \u0111\u00f3 di\u1ec7n t\u00edch c\u00e1c m\u00f4 h\u00ecnh n\u00e0y \u1edf 3 huy\u1ec7n \u0111i\u1ec1u tra g\u1ed3m huy\u1ec7n H\u00e0 Trung l\u00e0 166,7ha; huy\u1ec7n Th\u1ea1ch Th\u00e0nh l\u00e0 157,6ha v\u00e0 huy\u1ec7n Nh\u01b0 Xu\u00e2n l\u00e0 1310,7ha.<\/p>\n

K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra c\u0169ng \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng, tr\u1ed3ng xen c\u00e1c lo\u00e0i c\u00e2y n\u00f4ng nghi\u1ec7p nh\u01b0 s\u1eafn v\u00e0 ng\u00f4 v\u00e0o r\u1eebng tr\u1ed3ng keo \u0111\u00e3 mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf t\u01b0\u01a1ng \u0111\u1ed1i cao cho ng\u01b0\u1eddi tr\u1ed3ng r\u1eebng. L\u1ee3i nhu\u1eadn r\u00f2ng trung b\u00ecnh thu \u0111\u01b0\u1ee3c t\u1eeb m\u00f4 hi\u0300nh s\u0103\u0301n xen Keo tai t\u01b0\u01a1\u0323ng tr\u00ean 1ha trong chu k\u1ef3 6 n\u0103m v\u1edbi l\u00e3i su\u1ea5t vay 7,2%\/n\u0103m \u0111a\u0323t 65.775.917 \u0111\u00f4\u0300ng v\u00e0 t\u01b0\u0300 m\u00f4 hi\u0300nh ng\u00f4 xen Keo tai t\u01b0\u01a1\u0323ng l\u00e0 66.949.411 \u0111\u00f4\u0300ng. C\u00e1c m\u00f4 h\u00ecnh tr\u1ed3ng xen s\u1eafn v\u00e0 ng\u00f4 \u0111\u1ea1t l\u1ee3i nhu\u1eadn r\u00f2ng cao h\u01a1n so v\u01a1\u0301i m\u00f4 hi\u0300nh tr\u00f4\u0300ng Keo tai t\u01b0\u01a1\u0323ng thu\u1ea7n lo\u00e0i (kh\u00f4ng tr\u1ed3ng xen) t\u1eeb 22,3 – 24,5%.<\/p>\n

Nh\u00ecn chung vi\u1ec7c ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p \u1edf Thanh H\u00f3a t\u01b0\u01a1ng \u0111\u1ed1i thu\u1eadn l\u1ee3i v\u00ec tr\u00ean \u0111\u1ecba b\u00e0n t\u1ec9nh v\u00e0 c\u00e1c t\u1ec9nh l\u00e2n c\u1eadn \u0111ang c\u00f3 c\u00e1c c\u00f4ng ty, nh\u00e0 m\u00e1y thu mua, ch\u1ebf bi\u1ebfn c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y. C\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb c\u00e1c m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p (g\u1ed3m g\u1ed7 keo, s\u1eafn, ng\u00f4) \u1edf 3 huy\u1ec7n \u0111i\u1ec1u tra l\u00e0 H\u00e0 Trung, Th\u1ea1ch Th\u00e0nh v\u00e0 Nh\u01b0 Xu\u00e2n hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c b\u00e1n ch\u1ee7 y\u1ebfu cho c\u00e1c t\u01b0 th\u01b0\u01a1ng t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng. Tuy nhi\u00ean, c\u0169ng nh\u01b0 c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m n\u00f4ng nghi\u1ec7p kh\u00e1c, vi\u1ec7c ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p \u1edf Thanh H\u00f3a v\u1eabn \u0111ang trong t\u00ecnh tr\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 lu\u00f4n b\u1ecb t\u01b0 th\u01b0\u01a1ng \u00e9p gi\u00e1. \u0110\u00e2y l\u00e0 v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn s\u1ef1 t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4 h\u00ecnh n\u00f4ng l\u00e2m k\u1ebft h\u1ee3p \u1edf Thanh H\u00f3a n\u00f3i ri\u00eang v\u00e0 \u1edf n\u01b0\u1edbc ta n\u00f3i chung.<\/td>\n<\/tr>\n

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Keywords<\/i><\/b>: Characteristics, main agroforestry models, Thanh Hoa province.<\/i><\/p>\n<\/td>\n

Some characteristics of main agroforestry models in Thanh Hoa provinceAgroforestry models in the period from 2007 – 2012 in Thanh Hoa province is intercropping agricultural crops in the Acacia mangium<\/i> plantations, with 2 main models are cassava and maize intercropped in Acacia mangium<\/i> plantation. The crops such as cassava and maize are often grown on Acacia plantations in 1st and 2nd year. By the end of year 2012 the area of \u200b\u200bintercropping cassava and maize in Acacia plantation in Thanh Hoa about 3257.5ha, increase in 2079ha compared with year 2007, in which area of this intercropping system in 3 surveyed districts included Ha Trung district is 166.7ha, Thach Thanh district is 157.6ha and Nhu Xuan district is 1310.7ha.<\/p>\n

The survey results also showed that intercropping of agricultural crops such as cassava and maize on Acacia magium<\/i> plantations has brought economic efficiency is relatively high for growers. Average net profit obtained per 1 ha in cycle 6 years with loan interest rate of 7.2% \/year from cassava intercropping model reached 65,775,917VND and maize intercropping model is 66, 949, 411VND. The intercropping cassava and maize brought higher net profit compared with the model Acacia monoculture (no intercrop) from 22.3% to 24.5%.<\/p>\n

The consumption of products from main agroforestry models in Thanh Hoa is relatively favorable because there are companies, plant acquisition, processing these products in Thanh Hoa province and neighboring provinces. The products from the agroforestry models (including wood of Acacia, cassava, maize) is investigated in 3 districts of Ha Trung, Thach Thanh and Nhu Xuan currently being sold mainly to local traders. Then traders transported to the factories, processing units in the district, province or neighboring provinces for consumption. However, as well as other kinds of agricultural products, the consumption of products from agroforestry models in Thanh Hoa is still in unstable condition and price pressure has always been traders. This is the most important problem has a great impact on the survival and development of agroforestry in Thanh Hoa in particular and in Vietnam in general.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

TH\u00c0NH PH\u1ea6N LO\u00c0I V\u00c0 BI\u1ebeN \u0110\u1ed8NG DI\u1ec6N T\u00cdCH R\u1eeaNG NG\u1eacP M\u1eb6N T\u1ec8NH H\u00c0 T\u0128NH<\/p>\n

Tr\u1ea7n Th\u1ecb T\u00fa1<\/sup>, Nguy\u1ec5n H\u1eefu \u0110\u1ed3ng2
\n<\/sup>\u00a01 <\/sup><\/i>Vi\u1ec7n T\u00e0i nguy\u00ean v\u00e0 M\u00f4i tr\u01b0\u1eddng – \u0110\u1ea1i h\u1ecdc Hu\u1ebf
\n2 <\/sup>Trung t\u00e2m Quan tr\u1eafc v\u00e0 K\u1ef9 thu\u1eadt m\u00f4i tr\u01b0\u1eddng H\u00e0 T\u0129nh – S\u1edf TNMT t\u1ec9nh H\u00e0 T\u0129nh<\/i><\/i><\/p>\n

\"Tapchi1-2014\"<\/a><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a:<\/i><\/b> Bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, th\u00e0nh ph\u1ea7n lo\u00e0i, th\u1ef1c v\u1eadt ng\u1eadp m\u1eb7n, t\u00e1c \u0111\u1ed9ng, vi\u1ec5n th\u00e1m.<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>H\u1ec7 sinh th\u00e1i r\u1eebng ng\u1eadp m\u1eb7n H\u00e0 T\u0129nh t\u1eadp trung ph\u1ea7n l\u1edbn \u1edf c\u00e1c khu v\u1ef1c c\u1eeda s\u00f4ng l\u1edbn nh\u01b0 C\u1eeda H\u1ed9i, C\u1eeda S\u00f3t, C\u1eeda Nh\u01b0\u1ee3ng v\u00e0 C\u1eeda Kh\u1ea9u. K\u1ebft qu\u1ea3 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 22 lo\u00e0i th\u1ef1c v\u1eadt ng\u1eadp m\u1eb7n (TVNM), thu\u1ed9c 22 chi, 18 h\u1ecd c\u1ee7a 2 ng\u00e0nh D\u01b0\u01a1ng x\u1ec9 (Polypodiophyta) v\u00e0 Ng\u1ecdc lan (Magnoliophyta) t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u; trong \u0111\u00f3, ng\u00e0nh Ng\u1ecdc lan chi\u1ebfm \u01b0u th\u1ebf v\u1edbi 94,4% t\u1ed5ng s\u1ed1 h\u1ecd v\u00e0 95,5% t\u1ed5ng s\u1ed1 lo\u00e0i. Trong 22 lo\u00e0i TVNM, c\u00f3 9 lo\u00e0i c\u00e2y ng\u1eadp m\u1eb7n ch\u00ednh th\u1ee9c (MS) v\u00e0 13 lo\u00e0i c\u00e2y tham gia ng\u1eadp m\u1eb7n (MAS). TVNM c\u00f3 nhi\u1ec1u gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng, bao g\u1ed3m d\u01b0\u1ee3c li\u1ec7u (18 lo\u00e0i), cho g\u1ed7 (9 lo\u00e0i), l\u00e0m th\u1ef1c ph\u1ea9m (4 lo\u00e0i), cho s\u1ee3i (4 lo\u00e0i), cho tanin (4 lo\u00e0i), l\u00e0m c\u1ea3nh (2 lo\u00e0i) v\u00e0 cho c\u00f4ng d\u1ee5ng kh\u00e1c (1 lo\u00e0i). Tuy nhi\u00ean, h\u1ec7 sinh th\u00e1i r\u1eebng ng\u1eadp m\u1eb7n H\u00e0 T\u0129nh hi\u1ec7n nay \u0111ang ch\u1ecbu nhi\u1ec1u \u1ea3nh h\u01b0\u1edfng c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu v\u00e0 th\u1eddi ti\u1ebft c\u1ef1c \u0111oan. B\u00ean c\u1ea1nh \u0111\u00f3, c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh t\u1ebf- x\u00e3 h\u1ed9i \u0111\u00e3 l\u00e0m bi\u1ebfn \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 di\u1ec7n t\u00edch r\u1eebng ng\u1eadp m\u1eb7n hi\u1ec7n c\u00f3. \u0110i\u1ec1u n\u00e0y \u0111ang \u0111\u1eb7t ra nhi\u1ec1u th\u00e1ch th\u1ee9c cho ch\u00ednh quy\u1ec1n \u0111\u1ecba ph\u01b0\u01a1ng trong vi\u1ec7c quy ho\u1ea1ch, khai th\u00e1c v\u00e0 s\u1eed d\u1ee5ng h\u1ee3p l\u00fd h\u1ec7 sinh th\u00e1i r\u1eebng ng\u1eadp m\u1eb7n. Do \u0111\u00f3, b\u00e0i b\u00e1o n\u00e0y \u0111\u00e3 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 vi\u1ec5n th\u00e1m v\u00e0 GIS; th\u00f4ng qua kh\u1ea3o s\u00e1t th\u1ef1c t\u1ebf x\u00e1c \u0111\u1ecbnh s\u1ef1 bi\u1ebfn \u0111\u1ed9ng di\u1ec7n t\u00edch r\u1eebng ng\u1eadp m\u1eb7n t\u1ec9nh H\u00e0 T\u0129nh. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y trong giai \u0111o\u1ea1n 2000 – 2012 c\u00f3 1.392,79ha r\u1eebng ng\u1eadp m\u1eb7n \u0111\u00e3 b\u1ecb bi\u1ebfn m\u1ea5t, trung b\u00ecnh gi\u1ea3m 116,1ha\/n\u0103m, hi\u1ec7n ch\u1ec9 c\u00f2n 775,83ha.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> Climate change, impacts, mangrove flora, species composition, remote sensing<\/i><\/p>\n<\/td>\n

Species composition and the fluctuation of mangroves in Ha Tinh provinceMangrove ecosystems in Ha Tinh concentrate largely in estuaries such as Hoi inlet, Sot inlet, Nhuong inlet, Khau inlet. The results have identified 22 species mangrove flora of 22 genera, 18 familia, 2 phylums included Polypodiophyta and Magnoliophyta in the study area. Magnoliophyta dominate with 94.4% of total familia and 95.5% of total species. Among 22 species in Ha Tinh mangrove flora, there are 9 true mangrove species (MS) and 13 mangrove associated species (MAS). Mangrove flora in Ha Tinh province has a lot of valuable uses, such as timber, medicinal, food, etc. In particular, there are 18 species of medicinal plants, 9 species of timber, 4 species of food, 4 species of fiber, 4 species for tannin, 2 species of bonsai and one for other utility. However, the mangrove ecosystems in Ha Tinh are influenced adversely by the impact of climate change and extreme weather. Besides, the operation of socio- economic activities were caused the change of \u200b\u200bmangrove areas. These have posed many challenges for local authorities in planning, rational use of mangrove ecosystems to conservation and development as well as maximize the role of mangroves. Therefore, this paper has applied remote sensing and GIS technology to determine the variation of mangrove forest area in Ha Tinh province. The study results showed that there were 1392.79 ha of mangrove forest lost during the period from 2000 to 2012, average 116,1ha\/year, the only remaining area of \u200b\u200b775.83 ha of mangroves.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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\u00a0<\/b><\/p>\n

\u0110A D\u1ea0NG TH\u1ea2M TH\u1ef0C V\u1eacT V\u00c0 S\u1ef0 BI\u1ebeN \u0110\u1ed4I C\u1ee6A TH\u1ef0C V\u1eacT THEO \u0110\u1ed8 CAO T\u1ea0I V\u01af\u1edcN QU\u1ed0C GIA BA V\u00cc<\/p>\n

Tr\u1ea7n Minh Tu\u1ea5n1<\/sup>, V\u0169 Anh T\u00e0i2<\/sup>
\n<\/sup>1<\/sup><\/i>V\u01b0\u1eddn Qu\u1ed1c gia Ba V\u00ec, 2<\/sup>Vi\u1ec7n \u0110\u1ecba l\u00ed, Vi\u1ec7n H\u00e0n l\u00e2m KHVN<\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a:<\/i><\/b> Th\u1ea3m th\u1ef1c v\u1eadt, Ba V\u00ec, V\u01b0\u1eddn Qu\u1ed1c gia<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Th\u1ea3m th\u1ef1c v\u1eadt \u0111\u01b0\u1ee3c v\u00ed nh\u01b0 b\u1ed9 khung ch\u00ednh c\u1ee7a m\u1ed9t h\u1ec7 sinh th\u00e1i tr\u00ean c\u1ea1n, c\u00f3 vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong c\u00f4ng t\u00e1c b\u1ea3o t\u1ed3n \u0111a d\u1ea1ng sinh h\u1ecdc. \u0110\u1ed1i v\u1edbi V\u01b0\u1eddn qu\u1ed1c gia Ba V\u00ec, nhi\u1ec7m v\u1ee5 b\u1ea3o t\u1ed3n ch\u1ec9 th\u00e0nh c\u00f4ng khi c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 th\u1ea3m th\u1ef1c v\u1eadt \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 v\u00e0 chi ti\u1ebft. Th\u1ea3m th\u1ef1c v\u1eadt VQG Ba V\u00ec \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 chi ti\u1ebft g\u1ed3m m\u1ed9t s\u1ed1 ki\u1ec3u, ki\u1ec3u ph\u1ee5. Th\u1ea3m th\u1ef1c v\u1eadt \u1edf v\u00e0nh \u0111ai nhi\u1ec7t \u0111\u1edbi tr\u00ean \u0111\u1ea5t \u0111\u1ecba \u0111\u1edbi g\u1ed3m c\u00f3: R\u1eebng k\u00edn n\u00f3ng – \u1ea9m m\u01b0a v\u1eeba c\u00e2y l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh nhi\u1ec7t \u0111\u1edbi, R\u1eebng th\u1ee9 sinh m\u00e1t \u1ea9m – m\u01b0a v\u1eeba c\u00e2y l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh nhi\u1ec7t \u0111\u1edbi, R\u1eebng Tre n\u1ee9a th\u1ee9 sinh n\u00f3ng \u1ea9m – m\u01b0a v\u1eeba nhi\u1ec7t \u0111\u1edbi, Tr\u1ea3ng c\u00e2y b\u1ee5i th\u1ee9 sinh n\u00f3ng (\u1ea5m) \u1ea9m – m\u01b0a nhi\u1ec7t \u0111\u1edbi, Tr\u1ea3ng c\u1ecf th\u1ee9 sinh n\u00f3ng \u1ea9m – m\u01b0a nhi\u1ec7t \u0111\u1edbi. Th\u1ea3m th\u1ef1c v\u1eadt \u1edf v\u00e0nh \u0111ai nhi\u1ec7t \u0111\u1edbi tr\u00ean \u0111\u1ea5t n\u1ed9i \u0111\u1ecba \u0111\u1edbi g\u1ed3m c\u00f3: Tr\u1ea3ng c\u1ecf ch\u1ecbu ng\u1eadp th\u1ee9 sinh nhi\u1ec7t \u0111\u1edbi, Qu\u1ea7n x\u00e3 th\u1ee7y sinh n\u01b0\u1edbc ng\u1ecdt nhi\u1ec7t \u0111\u1edbi. Th\u1ea3m th\u1ef1c v\u1eadt v\u00e0nh \u0111ai \u00e1 nhi\u1ec7t \u0111\u1edbi g\u1ed3m: R\u1eebng k\u00edn l\u1ea1nh \u1ea9m m\u01b0a nhi\u1ec1u c\u00e2y l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh \u00e1 nhi\u1ec7t \u0111\u1edbi, R\u1eebng k\u00edn l\u1ea1nh \u1ea9m m\u01b0a c\u00e2y l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh \u00e1 nhi\u1ec7t \u0111\u1edbi, R\u1eebng th\u1ee9 sinh m\u00e1t \u1ea9m m\u01b0a c\u00e2y l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh \u00e1 nhi\u1ec7t \u0111\u1edbi, Tr\u1ea3ng c\u00e2y b\u1ee5i m\u00e1t \u1ea9m th\u1ee9 sinh \u00e1 nhi\u1ec7t \u0111\u1edbi. Th\u1ea3m th\u1ef1c v\u1eadt nh\u00e2n t\u00e1c g\u1ed3m c\u00f3: R\u1eebng tr\u1ed3ng, C\u00e1c qu\u1ea7n x\u00e3 c\u00e2y tr\u1ed3ng c\u00f4ng \/n\u00f4ng nghi\u1ec7p, Qu\u1ea7n x\u00e3 c\u00e2y tr\u1ed3ng trong khu d\u00e2n c\u01b0. B\u1eadc \u0111\u1ed9 cao 700 – 800m \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 n\u01a1i s\u1ebd di\u1ec5n ra s\u1ef1 ph\u00e2n h\u00f3a gi\u1eefa th\u1ef1c v\u1eadt \u1edf \u0111ai nhi\u1ec7t \u0111\u1edbi v\u00e0 \u00e1 nhi\u1ec7t \u0111\u1edbi. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa s\u01b0\u1eddn \u0110\u00f4ng v\u00e0 s\u01b0\u1eddn T\u00e2y c\u00e1c nh\u00f3m lo\u00e0i \u0111\u1eb7c tr\u01b0ng cho m\u1ed7i s\u01b0\u1eddn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh \u1edf c\u00e1c ki\u1ec3u r\u1eebng c\u01a1 b\u1ea3n l\u00e0 R\u1eebng k\u00edn \u00e1 nhi\u1ec7t \u0111\u1edbi, R\u1eebng th\u1ee9 sinh \u00e1 nhi\u1ec7t \u0111\u1edbi v\u00e0 R\u1eebng nhi\u1ec7t \u0111\u1edbi.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> Vegetation diversity, Ba Vi, National Park.<\/i><\/p>\n<\/td>\n

Research on vegetation diversity, and the zonal changes of vegetation in Ba Vi National ParkVegetation is a main frame of a terrestrial ecosystem that plays an extremely important role in the biodiversity conservation. The conservation mission can only succeed when the study on vegetation has been completely conducted. The vegetation of Ba Vi National Park is described in detail including the types and subtypes as following: Tropical vegetation on zonal soil that includes: Tropical cool moist rain evergreen broad-leaved secondary forests; Tropical rain medium hot and humid – Bamboo secondary forests; Tropical rain hot (warm) humid secondary shurb; Tropical rain hot and humid secondary grasslands. Tropical vegetation on inland zonal soil that includes: Tropical submergence secondary grasslands; Tropical freshwater community aquarium. Subtropical vegetation includes: Subtropical cold wet more rain broad-leaved evergreen closed forest; Subtropical cold wet rain broad-leaved evergreen closed forest; Subtropical rain cool humid broad-leaved evergreen secondary forests; Subtropical cool humid secondary Shurb. Artificial vegetation includes: Plantations, The crops communities of industrial\/agricultural, Crops communities in neighborhoods. An elevation at level of 700-800m a.sl. is identified as where differentiation takes place between plants in tropical and sub-tropical zones. The difference between eastern and western side slopes: The basic group of species is determined by the type of forest is Tropical closed forest, Secondary forest and Subtropical rainforest.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n


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C\u00c2Y THU\u1ed0C C\u1ee6A NG\u01af\u1edcI HRE
\nV\u00c0 \u0110\u1ec0 XU\u1ea4T M\u1ed8T S\u1ed0 GI\u1ea2I PH\u00c1P B\u1ea2O T\u1ed2N, PH\u00c1T TRI\u1ec2N
\nT\u1ea0I HUY\u1ec6N BA T\u01a0, T\u1ec8NH QU\u1ea2NG NG\u00c3I<\/p>\n

V\u00f5 V\u0103n Minh, Ph\u1ea1m Th\u1ecb Kim Thoa, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn
\n\u0110\u1ea1i H\u1ecdc \u0110\u00e0 N\u1eb5ng<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a:<\/i><\/b> C\u00e2y thu\u1ed1c d\u00e2n t\u1ed9c, d\u00e2n t\u1ed9c Hre, \u0111a d\u1ea1ng c\u00e2y thu\u1ed1c, huy\u1ec7n Ba T\u01a1, tri th\u1ee9c b\u1ea3n \u0111\u1ecba.<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Tri th\u1ee9c b\u1ea3n \u0111\u1ecba v\u1ec1 s\u1eed d\u1ee5ng c\u00e2y c\u1ecf l\u00e0m thu\u1ed1c c\u1ee7a c\u00e1c d\u00e2n t\u1ed9c \u1edf Vi\u1ec7t Nam l\u00e0 ngu\u1ed3n t\u00e0i nguy\u00ean qu\u00fd gi\u00e1, c\u00f3 gi\u00e1 tr\u1ecb khoa h\u1ecdc v\u00e0 c\u00f3 \u00fd ngh\u0129a th\u1ef1c ti\u1ec5n to l\u1edbn. B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 \u0111i\u1ec1u tra tri th\u1ee9c, kinh nghi\u1ec7m v\u00e0 th\u1ef1c tr\u1ea1ng s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c c\u1ee7a c\u1ed9ng \u0111\u1ed3ng ng\u01b0\u1eddi Hre t\u1ea1i huy\u1ec7n Ba T\u01a1, t\u1ec9nh Qu\u1ea3ng Ng\u00e3i nh\u1eb1m x\u00e2y d\u1ef1ng c\u00e1c c\u01a1 ch\u1ebf qu\u1ea3n l\u00fd, c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n v\u00e0 s\u1eed d\u1ee5ng b\u1ec1n v\u1eefng hi\u1ec7u qu\u1ea3 ngu\u1ed3n t\u00e0i nguy\u00ean c\u00e2y thu\u1ed1c t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng. K\u1ebft qu\u1ea3 \u0111\u00e3 \u0111i\u1ec1u tra x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 45 lo\u00e0i c\u00e2y thu\u1ed1c, thu\u1ed9c 26 h\u1ecd, th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a c\u1ed9ng \u0111\u1ed3ng ng\u01b0\u1eddi Hre huy\u1ec7n Ba T\u01a1, Qu\u1ea3ng Ng\u00e3i. Trong \u0111\u00f3 c\u00f3 2 lo\u00e0i thu\u1ed1c qu\u00fd trong danh l\u1ee5c \u0110\u1ecf c\u00e2y thu\u1ed1c Vi\u1ec7t Nam, 6 lo\u00e0i qu\u00fd theo ki\u1ebfn th\u1ee9c b\u1ea3n \u0111\u1ecba c\u1ee7a ng\u01b0\u1eddi d\u00e2n. C\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c khai th\u00e1c ch\u1ee7 y\u1ebfu t\u1eeb t\u1ef1 nhi\u00ean (84,44%), ki\u1ebfn th\u1ee9c b\u1ea3n \u0111\u1ecba phong ph\u00fa th\u1ec3 hi\u1ec7n \u1edf kinh nghi\u1ec7m s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1eefa tr\u1ecb 12 nh\u00f3m b\u1ec7nh kh\u00e1c nhau, s\u1ed1 l\u01b0\u1ee3ng c\u00e1c lo\u00e0i c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1eefa c\u00e1c nh\u00f3m b\u1ec7nh c\u01a1 – x\u01b0\u01a1ng – kh\u1edbp, th\u1eadn, n\u1ed9i ti\u1ebft, gan l\u00e0 nhi\u1ec1u nh\u1ea5t. C\u00e1ch th\u1ee9c ch\u1ebf bi\u1ebfn s\u1eed d\u1ee5ng kh\u00e1 \u0111a d\u1ea1ng. Nh\u1eefng lo\u00e0i c\u00e2y thu\u1ed1c qu\u00fd c\u1ea7n \u01b0u ti\u00ean b\u1ea3o t\u1ed3n l\u00e0 Ba k\u00edch (Morinda officinalis <\/i>How), Th\u1ed5 ph\u1ee5c linh (Smilax glabre<\/i>), Sa nh\u00e2n t\u00edm (Amomum longiligulare <\/i>T.L.Wu), c\u1ea7n nh\u00e2n gi\u1ed1ng m\u1edf r\u1ed9ng di\u1ec7n t\u00edch c\u00e1c lo\u1ea1i c\u00e2y thu\u1ed1c d\u01b0\u1edbi t\u00e1n r\u1eebng tr\u1ed3ng, v\u01b0\u1eddn nh\u00e0, \u0111\u1ed3ng th\u1eddi khoanh v\u00f9ng b\u1ea3o v\u1ec7 t\u1ea1i ch\u1ed7 (B\u1ea3o t\u1ed3n nguy\u00ean v\u1ecb). \u0110i k\u00e8m v\u1edbi bi\u1ec7n ph\u00e1p tuy\u00ean truy\u1ec1n khai th\u00e1c h\u1ee3p l\u00fd c\u00e2y thu\u1ed1c, v\u00e0 t\u01b0 li\u1ec7u h\u00f3a c\u00e1c b\u00e0i thu\u1ed1c d\u00e2n t\u1ed9c.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> <\/i>Ba To district, <\/i>diversity of medicinal plants, ethnobotany, Hre Ethnic, traditional knowledge,<\/i><\/p>\n<\/td>\n

Medicinal plants of Hre ethnic and propose some solutions to conservation and development of medicinal plants in the Ba To district, Quang Ngai provinceIndigenous knowledge of medicinal plants used by ethnic groups in Vietnam is precious resources, valuable scientific and practical significance tremendous. This paper presents the results of the survey of knowledge, experience and the actual use of medicinal plants of the Hre community at Ba To, Quang Ngai Province to develop management mechanisms, conservation measures and use sustainable resource efficiency in local medicinal plants. Survey results identified 45 species of medicinal plants belonging to 26 families, through the use of everyday life of the community Hre Ba To, Quang Ngai. There are 2 species of medicinal plants in the Red List medicines Vietnam, 6 species according to local knowledge of the people. Medicinal plants is mined primarily from natural ( 84.44 % ), rich indigenous knowledge expressed in the user experience team to treat 12 different diseases, the number of medicinal plants used to treat muscle – bone disease group – joints, kidney, endocrine, liver is the most. Uses the processing is quite divers. Many medicinal plant need to be conserve: Morinda officinalis<\/i> How, Smilax glabre<\/i>, Amomum longiligulare<\/i> T.L.Wu, should expand the area of \u200b\u200bmedicial plant in plantations, gardens, and situ Conservation. Rational exploitation of medicinal plants, and documentation of all traditional medicine.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n


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NGHI\u00caN C\u1ee8U T\u00ccNH TR\u1ea0NG V\u00c0 PH\u00c2N B\u1ed0
\nC\u1ee6A C\u00c1C LO\u00c0I \u0110\u1ed8NG V\u1eacT HOANG D\u00c3 QU\u00dd HI\u1ebeM
\nT\u1ea0I KHU B\u1ea2O T\u1ed2N THI\u00caN NHI\u00caN S\u1ed0P C\u1ed8P, TI\u0309NH S\u01a0N LA<\/p>\n

V\u0169 Ti\u1ebfn Th\u1ecbnh
\nTr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/i><\/p>\n\n\n\n\n
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T\u1eeb kh\u00f3a:<\/i><\/b> Chim, \u0111a d\u1ea1ng sinh h\u1ecdc, S\u1ed1p C\u1ed9p, S\u01a1n La, th\u00fa<\/i><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b>Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean S\u1ed1p C\u1ed9p, t\u1ec9nh S\u01a1n La v\u1edbi h\u1ec7 sinh th\u00e1i \u0111\u1eb7c tr\u01b0ng cho v\u00f9ng n\u00fai T\u00e2y B\u1eafc l\u00e0 n\u01a1i c\u00f3 t\u00ednh \u0111a d\u1ea1ng sinh h\u1ecdc cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt. K\u1ebft qu\u1ea3 c\u1ee7a cu\u1ed9c \u0111i\u1ec1u tra khu h\u1ec7 \u0111\u1ed9ng v\u1eadt v\u00e0o n\u0103m 2013 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 25 lo\u00e0i th\u00fa v\u00e0 12 lo\u00e0i chim qu\u00fd hi\u1ebfm hi\u1ec7n \u0111ang c\u01b0 tr\u00fa t\u1ea1i Khu b\u1ea3o t\u1ed3n. C\u00e1c lo\u00e0i th\u00fa v\u00e0 chim qu\u00fd hi\u1ebfm t\u1ea1i Khu BTTN S\u1ed1p C\u1ed9p c\u00f3 k\u00edch th\u01b0\u1edbc qu\u1ea7n th\u1ec3 nh\u1ecf, nhi\u1ec1u lo\u00e0i \u1edf m\u1ee9c \u0111\u1ed9 hi\u1ebfm ho\u1eb7c r\u1ea5t hi\u1ebfm, nguy c\u01a1 tuy\u1ec7t ch\u1ee7ng c\u1ee5c b\u1ed9 l\u00e0 r\u1ea5t cao n\u1ebfu kh\u00f4ng c\u00f3 c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n k\u1ecbp th\u1eddi v\u00e0 h\u1ee3p l\u00fd. \u0110\u1eb7c bi\u1ec7t, Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean S\u1ed1p C\u1ed9p c\u00f2n l\u00e0 n\u01a1i ph\u00e2n b\u1ed1 c\u1ee7a 2 lo\u00e0i th\u00fa c\u1ef1c k\u1ef3 nguy c\u1ea5p v\u00e0 qu\u00fd hi\u1ebfm l\u00e0 H\u1ed5 (Panthera tigris<\/i>) v\u00e0 Voi (Elephas maximus<\/i>). C\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt qu\u00fd hi\u1ebfm ch\u1ee7 y\u1ebfu ph\u00e2n b\u1ed1 \u1edf khu v\u1ef1c Hu\u1ed5i Pa T\u1ebft v\u00e0 \u0111\u1ec9nh Pu C\u0103m. C\u00e1c khu v\u1ef1c g\u1ea7n Hu\u1ed5i Pa T\u1ebft, xung quanh \u0111\u1ec9nh Pu C\u0103m, khe b\u1ea3n Kh\u00e1 l\u00e0 c\u00e1c khu v\u1ef1c b\u1ecb t\u00e1c \u0111\u1ed9ng m\u1ea1nh b\u1edfi c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u01b0 s\u0103n b\u1eafn, khai th\u00e1c g\u1ed7, ph\u00e1 r\u1eebng l\u00e0m r\u1eaby tr\u00e1i ph\u00e9p.<\/td>\n<\/tr>\n
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Keywords:<\/i><\/b> Bird, biodiversity, mammal, Son La, Sop Cop<\/i><\/p>\n<\/td>\n

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Status and distribution of endangered species of wildlife species of
\nSop Cop Nature Reserve, Son La province<\/p>\n

Sop Cop nature reserve in Son La Province has typical ecosystem of the northwestern region of Vietnam. The reserve habors high biological diversity, especially wildlife. The fauna survey in 2013 identified the presence 25 endangered mammal and 12 bird species currently residing in Sop Cop Nature Reserve. Most endangered wildlife species have small population size, some of those are very rare and will be likely to be extinct if there is no urgent and suitable conservation efforts. Especially, Sop Cop nature reserve is still supporting 2 critically endangered species including Tiger (Panthera tigris<\/i>) and Elephant (Elephas maximus<\/i>). The endangered wildlife species mainly distributed in the Huoi Pa Tet and Pu Cam peak. The area surrounding Huoi Pa Tet, Pu Cam peak, Ban Kha are serverely affected by human preasures such as hunting, logging, and illegal deforestation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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HOA\u0300N THI\u00ca\u0323N C\u00d4NG NGH\u00ca\u0323 S\u1ea2N XU\u1ea4T VA\u0301N C\u00d4\u0301P PHA T\u1eea TRE LU\u1ed2NG<\/p>\n

Nguy\u00ea\u0303n Quang Trung1<\/sup>, Pha\u0323m V\u0103n Ch\u01b0\u01a1ng2
\n<\/sup>1 <\/sup><\/i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7<\/i>p Vi\u1ec7t Nam<\/i>
\n2<\/sup> Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/i><\/p>\n\n\n\n\n
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T\u01b0\u0300 kho\u0301a<\/i><\/b>: C\u00f4\u0301p pha tre<\/i><\/i><\/b><\/p>\n<\/td>\n

T\u00d3M T\u1eaeT<\/b><\/b>Hi\u1ec7n nay, c\u00f4\u0301p pha tre c\u1ee7a Vi\u1ec7t Nam \u0111\u01b0\u01a1\u0323c s\u1ea3n xu\u1ea5t t\u1eeb nguy\u00ean li\u00ea\u0323u chu\u0309 y\u00ea\u0301u la\u0300 lu\u00f4\u0300ng (<\/b>Dendrocalamus barbatus<\/i> Hsuch et D.Z.Li) va\u0300 keo phenol foocmaldehyde (keo PF) b\u1eb1ng c\u00f4ng ngh\u1ec7 ti\u1ebfp thu t\u1eeb Trung Qu\u1ed1c. C\u00e1c c\u01a1 s\u01a1\u0309 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng kh\u00f4ng a\u0301p du\u0323ng \u0111\u1ea7y \u0111\u1ee7 ca\u0301c b\u01b0\u01a1\u0301c c\u00f4ng ngh\u00ea\u0323 va\u0300 th\u00f4ng s\u00f4\u0301 ki\u0303 thu\u00e2\u0323t, m\u1eb7t kha\u0301c do \u0111\u0103\u0323c ti\u0301nh cu\u0309a tre lu\u00f4\u0300ng Vi\u00ea\u0323t Nam kh\u00f4ng hoa\u0300n toa\u0300n gi\u00f4\u0301ng nguy\u00ean li\u1ec7u tr\u00fac s\u00e0o cu\u0309a Trung Qu\u00f4\u0301c n\u00ean ch\u00e2\u0301t l\u01b0\u01a1\u0323ng sa\u0309n ph\u00e2\u0309m c\u00f4\u0301p pha tre cu\u0309a Vi\u00ea\u0323t Nam th\u01b0\u01a1\u0300ng kh\u00f4ng \u00f4\u0309n \u0111i\u0323nh. Nghi\u00ean c\u01b0\u0301u na\u0300y \u0111a\u0303 chi\u0309 ra m\u00f4\u0323t s\u00f4\u0301 nguy\u00ean nh\u00e2n g\u00e2y a\u0309nh h\u01b0\u01a1\u0309ng t\u01a1\u0301i ch\u00e2\u0301t l\u01b0\u01a1\u0323ng sa\u0309n ph\u00e2\u0309m, bi\u00ea\u0323n pha\u0301p kh\u0103\u0301c phu\u0323c va\u0300 \u0111\u00ea\u0300 xu\u00e2\u0301t quy tri\u0300nh c\u00f4ng ngh\u00ea\u0323 sa\u0309n xu\u00e2\u0301t v\u00e1n c\u00f4\u0301p pha t\u01b0\u0300 tre lu\u00f4\u0300ng Vi\u00ea\u0323t Nam. Theo c\u00f4ng ngh\u00ea\u0323 na\u0300y, s\u1ea3n ph\u1ea9m c\u00f3 kh\u00f4\u0301i l\u01b0\u01a1\u0323ng th\u00ea\u0309 ti\u0301ch t\u0103ng 64,8%, \u0111\u00f4\u0323 b\u00ea\u0300n u\u00f4\u0301n ti\u0303nh t\u0103ng 109%; \u0111\u00f4\u0323 tr\u01b0\u01a1ng n\u01a1\u0309 gia\u0309m 4% va\u0300 m\u00f4 \u0111un da\u0300n h\u00f4\u0300i u\u00f4\u0301n ti\u0303nh gia\u0309m 9,2%, \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u1ec1 v\u00e1n c\u1ed1p pha trong x\u00e2y d\u01b0\u0323ng.<\/td>\n<\/tr>\n
\n

T\u1eeb kh\u00f3a<\/i><\/b>: Bamboo formply<\/i><\/p>\n<\/td>\n

Bamboo formwork technology improvement for its quality enhancingAt present bamboo formply is being used in many construction works. This product is made of Dendrocalamus barbatus <\/i>and <\/i>phenol formaldehyde adhesive under the imported technology from China. But the bamboo formwork product has unstable and low quality and its properties are not met production requirements. Explain for these reasons, there are many theories such as: To reduce the cost, some technical requirements of bamboo formwork production are not applied correctly and so on. On the other hand, we copy Chinese technology but the Dendrocalamus barbatus <\/i>properties is quite different with Chinese bamboo. This study determined some problems impact on the bamboo formwork quality and propose the innovative technology. Following this technology, the bamboo formwork quality is improved. For example: Its density and MoR are increased to 64.8% and 109% respectively; but the swelling of thickness and MoE are reduced to 4% and 9.2% respectively.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/i><\/p>\n

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\n<\/b><\/p>\n

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\n<\/b><\/p>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A X\u1eec L\u00dd TH\u1ee6Y NHI\u1ec6T V\u00c0 CH\u1ea4T CH\u1eacM CH\u00c1Y
\nMONO AMMONIUM PHOSPHATE <\/i>\u0110\u1ebeN M\u1ed8T S\u1ed0 T\u00cdNH CH\u1ea4T V\u1eacT L\u00dd
\nC\u1ee6A G\u1ed6 B\u1ea0CH \u0110\u00c0N UROPHYLLA <\/i><\/p>\n

Nguy\u1ec5n Thanh T\u00f9ng, \u0110\u1eb7ng \u0110\u1ee9c Vi\u1ec7t, \u0110\u1ed7 V\u0169 Th\u1eafng
\nVi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng – Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n\n\n\n\n
\n

T\u1eeb kh\u00f3a:<\/i><\/b> B\u1ea1ch \u0111\u00e0n Urophylla, ch\u1eadm ch\u00e1y,
\n\u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc,
\nth\u1ee7y nhi\u1ec7t.<\/i><\/p>\n

\n<\/td>\n

T\u00d3M T\u1eaeTBa\u0323ch \u0111a\u0300n urophylla (Eucalyptus urophylla<\/i>) \u0111\u01b0\u01a1\u0323c xa\u0301c \u0111i\u0323nh la\u0300 m\u00f4\u0323t trong ca\u0301c loa\u0300i c\u00e2y tr\u00f4\u0300ng r\u01b0\u0300ng chu\u0309 l\u01b0\u0323c hi\u00ea\u0323n nay \u01a1\u0309 Vi\u00ea\u0323t Nam; th\u01b0\u0323c t\u00ea\u0301 s\u01b0\u0309 du\u0323ng g\u00f4\u0303 Ba\u0323ch \u0111a\u0300n urophylla ch\u01b0a t\u01b0\u01a1ng x\u01b0\u0301ng v\u01a1\u0301i ti\u00ea\u0300m n\u0103ng ngu\u00f4\u0300n nguy\u00ean li\u00ea\u0323u na\u0300y. Kh\u0103\u0301c phu\u0323c ca\u0301c ha\u0323n ch\u00ea\u0301 hi\u00ea\u0323n nay cu\u0309a g\u00f4\u0303 Ba\u0323ch \u0111a\u0300n urophylla \u0111\u00ea\u0309 s\u01b0\u0309 du\u0323ng d\u01b0\u01a1\u0301i da\u0323ng g\u00f4\u0303 xe\u0309 la\u0300m nguy\u00ean li\u00ea\u0323u sa\u0309n xu\u00e2\u0301t \u0111\u00f4\u0300 m\u00f4\u0323c la\u0300 go\u0301p ph\u00e2\u0300n n\u00e2ng cao chu\u00f4\u0303i gia\u0301 tri\u0323 sa\u0309n ph\u00e2\u0309m r\u01b0\u0300ng tr\u00f4\u0300ng Ba\u0323ch \u0111a\u0300n urophylla va\u0300 t\u0103ng thu nh\u00e2\u0323p cho ng\u01b0\u01a1\u0300i tr\u00f4\u0300ng r\u01b0\u0300ng. B\u0103\u0300ng ca\u0301c gia\u0309i pha\u0301p x\u01b0\u0309 l\u00fd thu\u0309y nhi\u00ea\u0323t k\u00ea\u0301t h\u01a1\u0323p x\u01b0\u0309 l\u00fd ch\u00e2\u0323m cha\u0301y cho g\u00f4\u0303 xe\u0309 Ba\u0323ch \u0111a\u0300n urophylla, m\u00f4\u0323t s\u00f4\u0301 ti\u0301nh ch\u00e2\u0301t v\u00e2\u0323t l\u00fd cu\u0309a g\u00f4\u0303 Ba\u0323ch \u0111a\u0300n urophylla \u0111a\u0303 \u0111\u01b0\u01a1\u0323c ca\u0309i thi\u00ea\u0323n, \u0111a\u0301p \u01b0\u0301ng y\u00eau c\u00e2\u0300u nguy\u00ean li\u00ea\u0323u cho sa\u0309n xu\u00e2\u0301t \u0111\u00f4\u0300 m\u00f4\u0323c. \u01a0\u0309 ch\u00ea\u0301 \u0111\u00f4\u0323 x\u01b0\u0309 l\u00fd thu\u0309y nhi\u00ea\u0323t (nhi\u00ea\u0323t \u0111\u00f4\u0323 1500<\/sup>C, th\u01a1\u0300i gian x\u01b0\u0309 l\u00fd 4 gi\u01a1\u0300), k\u00ea\u0301t h\u01a1\u0323p x\u01b0\u0309 l\u00fd ho\u0301a ch\u00e2\u0301t Mono amonium phosphate n\u00f4\u0300ng \u0111\u00f4\u0323 12%, g\u00f4\u0303 Ba\u0323ch \u0111a\u0300n urophylla \u0111a\u0323t h\u00ea\u0323 s\u00f4\u0301 ch\u00f4\u0301ng tr\u01b0\u01a1ng n\u01a1\u0309 20,53%, hi\u00ea\u0323u su\u00e2\u0301t ch\u00f4\u0301ng hu\u0301t n\u01b0\u01a1\u0301c \u0111a\u0323t 10,18%, m\u01b0\u0301c \u0111\u00f4\u0323 t\u00f4\u0309n hao kh\u00f4\u0301i l\u01b0\u01a1\u0323ng \u0111a\u0323t 7,5%. Ca\u0301c chi\u0309 ti\u00eau na\u0300y \u0111\u00ea\u0300u \u0111a\u0323t t\u00f4\u0301t h\u01a1n so v\u01a1\u0301i m\u00e2\u0303u \u0111\u00f4\u0301i ch\u01b0\u0301ng kh\u00f4ng x\u01b0\u0309 l\u00fd<\/td>\n<\/tr>\n
\n

Keywords:<\/i><\/b> Eucalyptus urophylla<\/i>, Dimensional stability, hydrothermal treatment, retardant, vacuum – pressure impregnation<\/i><\/p>\n<\/td>\n

Influence of hydrothermal and Mono ammonium Phosphate treatments on some physical properties of Eucalyptus urophylla<\/i> timberAt present Eucalyptus urophylla<\/i> species is the one of mail and important species for plantation development in Vietnam, actually the timber utilization of this species is not corresponded with the potential of this material resource.<\/p>\n

Reducing the defects of Eucalyptus urophylla<\/i> sawnboard products such as endsplit, colapse, shrinkage, surface checks… to use it as a raw material for furniture production will contribute to improve the value chain of Eucalyptus urophylla<\/i> plantation product as well as to improve the income of plantation owners.<\/p>\n

Some physical properties of E.urophylla<\/i> timber to be improved and met the requirement of material quality for furniture production by the hydrothermal and mono ammonium phosphate treatments. By hydrothermal treatment at 1500<\/sup>C and 4 hours before high presure soaking in a solusion of Mono amonium phosphate 12%; the physical properties of E.urophylla<\/i> timber is improved with the Anti-Swelling Effciency (ASE) at 20.53%; and Water Repellency Effectiveness (WRE) at 10.18% and mass loss at 7.5% lower than the untreated samples. The results of study has clearly indicated that after hydrothermal treatment and MAP impregnation, the fire retardant level and dimensional stability went up significantly.<\/p>\n

 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Table of content 1 \u0110\u1eb7c \u0111i\u1ec3m sinh l\u00fd v\u00e0 ph\u01b0\u01a1ng ph\u00e1p b\u1ea3o qu\u1ea3n h\u1ea1t Mun (Diospyros mun A.Chev. ex Lecomte) Ng\u00f4 V\u0103n Nh\u01b0\u01a1ng Physiological characteristics and storage method of Diospyros mun\u00a0A. Chev. Ex lecomte seed 3089 2 K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra v\u1ec1 h\u1ecd d\u1ebb (Fagaceae) \u1edf V\u01b0\u1eddn qu\u1ed1c gia V\u0169 Quang, t\u1ec9nh H\u00e0 T\u0129nh Nguy\u1ec5n […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1221"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=1221"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1221\/revisions"}],"predecessor-version":[{"id":1223,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1221\/revisions\/1223"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=1221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=1221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=1221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}