{"id":1555,"date":"2017-05-18T14:13:59","date_gmt":"2017-05-18T07:13:59","guid":{"rendered":"http:\/\/vafs.gov.vn\/en\/?p=1555"},"modified":"2023-11-23T12:25:30","modified_gmt":"2023-11-23T05:25:30","slug":"vietnam-journal-of-forest-science-number-1-2017","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2017\/05\/vietnam-journal-of-forest-science-number-1-2017\/","title":{"rendered":"Vietnam Journal of Forest Science Number 1-2017"},"content":{"rendered":"

\"Bia<\/a><\/p>\n

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T\u1ea0P CH\u00cd KHOA H\u1eccC L\u00c2M NGHI\u1ec6P S\u1ed0 1 – 2017<\/b><\/p>\n

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1<\/td>\nPh\u00e2n t\u00edch \u0111a d\u1ea1ng di truy\u1ec1n m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n l\u00e0m c\u01a1 s\u1edf cho vi\u1ec7c lai t\u1ea1o gi\u1ed1ng m\u1edbi<\/td>\nNguy\u1ec5n Vi\u1ec7t T\u00f9ng, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Th\u1ecb Linh \u0110am<\/td>\nAnalysis of genetic diversity in eucalyptus as basis for breeding program<\/td>\n1<\/td>\n<\/tr>\n
2<\/td>\nNghi\u00ean c\u1ee9u ch\u1ec9 th\u1ecb SSR li\u00ean quan \u0111\u1ebfn t\u00ednh tr\u1ea1ng sinh tr\u01b0\u1edfng c\u1ee7a b\u1ea1ch \u0111\u00e0n lai (E. urophylla <\/i>x E. exserta<\/i>, E. urophylla <\/i>x E. camaldulensi <\/i>)<\/td>\nNguy\u1ec5n Th\u1ecb Linh \u0110am, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Vi\u1ec7t T\u00f9ng<\/td>\nStudy on the association of simple sequence repeat (SSR) markers with growth trait in eucalyptus hybrid (E. urophylla <\/i>x E. exserta<\/i>, E. urophylla <\/i>x E. camaldulensi <\/i>)<\/td>\n12<\/td>\n<\/tr>\n
3<\/td>\nK\u1ebft qu\u1ea3 kh\u1ea3o nghi\u1ec7m m\u1edf r\u1ed9ng c\u00e2y nh\u1eadp n\u1ed9i (B\u1ea1ch \u0111\u00e0n, th\u00f4ng, keo) \u1edf v\u00f9ng cao m\u1ed9t s\u1ed1 t\u1ec9nh mi\u1ec1n n\u00fai ph\u00eda B\u1eafc<\/td>\nB\u00f9i Tr\u1ecdng Th\u1ee7y, Nguy\u1ec5n C\u00f4ng Ph\u01b0\u01a1ng<\/td>\nResults of planting trial of exotic species (Eucalyptus<\/i>, Pinus<\/i>, Acacia<\/i>) in high areas of some Northern mountainous provinces<\/td>\n23<\/td>\n<\/tr>\n
4<\/td>\nM\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m l\u00e2m h\u1ecdc c\u1ee7a c\u00e2y D\u1ea7u c\u00e1t (Dipterocarpus chartaceus <\/i>Sym) t\u1ea1i Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean T\u00e0 K\u00f3u, t\u1ec9nh B\u00ecnh Thu\u1eadn<\/td>\nNguy\u1ec5n Minh Thanh, L\u00ea V\u0103n Long<\/td>\nSilvicultural characteristics of Dipterocarpus chartaceus <\/i>Sym in Ta Kou natural reserve, Binh Thuan province<\/td>\n29<\/td>\n<\/tr>\n
5<\/td>\nM\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd c\u1ee7a c\u00e2y Xoan nh\u1eeb (Choerospondias axillaris<\/i>) (Roxb.) Burtt & Hill<\/td>\nH\u00e0 Th\u1ecb M\u1eebng, L\u1ea1i Thanh H\u1ea3i<\/td>\nSome physiological characteristic of Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill<\/td>\n35<\/td>\n<\/tr>\n
6<\/td>\nM\u00f4 h\u00ecnh h\u00f3a ph\u00e2n b\u1ed1 \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1 (Pinus kesiya <\/i>Royle ex Gordon) tr\u00ean c\u1ea5p \u0111\u1ea5t II d\u1ef1a tr\u00ean h\u00e0m ph\u00e2n b\u1ed1 Weibull v\u00e0 Richards<\/td>\nNguy\u1ec5n V\u0103n Th\u00eam<\/td>\nDiameter distribution modelling of plantations Pinus kesiya <\/i>Royle ex Gordon on II site class based on weibull and richards distribution functions<\/td>\n42<\/td>\n<\/tr>\n
7<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a kh\u00ed h\u1eadu \u0111\u1ebfn t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a B\u1ea1ch t\u00f9ng (Dacrycarpus imbricatus<\/i> (Blume) De Laub) \u1edf khu v\u1ef1c \u0110\u00e0 L\u1ea1t v\u00e0 \u0110\u1ee9c Tr\u1ecdng thu\u1ed9c t\u1ec9nh L\u00e2m \u0110\u1ed3ng<\/td>\nNguy\u1ec5n V\u0103n Nh\u1eabn<\/td>\nClimatic effect on the radial growth of (Dacrycarpus imbricatus (Blume) de Laub) in Da Lat and Duc Trong zone, Lam Dong province<\/td>\n51<\/td>\n<\/tr>\n
8<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a n\u1ea5m r\u1ec5 n\u1ed9i c\u1ed9ng sinh Am (Arbuscular mycorrhiza<\/i>) t\u1edbi sinh tr\u01b0\u1edfng v\u00e0 c\u1ea3i t\u1ea1o \u0111\u1ea5t b\u00e3i th\u1ea3i than Qu\u1ea3ng Ninh c\u1ee7a Keo tai t\u01b0\u1ee3ng (Acacia mangium<\/i>) \u1edf v\u01b0\u1eddn \u01b0\u01a1m<\/td>\nV\u0169 Qu\u00fd \u0110\u00f4ng, L\u00ea Qu\u1ed1c Huy v\u00e0 \u0110o\u00e0n \u0110\u00ecnh Tam<\/td>\nEffects of Arbuscular mycorrhiza<\/i> on growth and rehabilitation of Acacia mangium<\/i> ability on coal mine tailings in nursery<\/td>\n60<\/td>\n<\/tr>\n
9<\/td>\nX\u00e1c \u0111\u1ecbnh carbon l\u01b0u gi\u1eef c\u1ee7a r\u1eebng L\u1ed3 \u00f4 (Bambusa procure<\/i> A.chev et A.cam) \u1edf khu v\u1ef1c T\u00e2y Nguy\u00ean<\/td>\nHu\u1ef3nh Th\u1ecb Ki\u1ec1u Trinh, B\u00f9i Hi\u1ebfn \u0110\u1ee9c, Nguy\u1ec5n H\u1ea3i H\u00f2a<\/td>\nDetermination carbon storage of Bamboo forest (Bambusa procure<\/i> A.chev et A.cam) in Central Highlands<\/td>\n71<\/td>\n<\/tr>\n
10<\/td>\nUsing Landsat 8 to estimate aboveground biomass and carbon stocks in Xuan Thuy National Park, Nam Dinh province<\/td>\nHai Hoa Nguyen, Dinh Quang Tuan, Duong Trung Hieu<\/td>\nS\u1eed d\u1ee5ng \u1ea3nh Landsat 8 \u0111\u1ec3 \u01b0\u1edbc t\u00ednh sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon b\u1ec1 m\u1eb7t r\u1eebng ng\u1eadp m\u1eb7n t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c Gia Xu\u00e2n Th\u1ee7y, t\u1ec9nh Nam \u0110\u1ecbnh<\/td>\n84<\/td>\n<\/tr>\n
11<\/td>\n\u0110i\u1ec1u tra qu\u1ea7n th\u1ec3 V\u01b0\u1ee3n \u0111en m\u00e1 hung trung b\u1ed9 (Nomascus annamensis) v\u00e0 hi\u1ec7n tr\u1ea1ng b\u1ea3o t\u1ed3n t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh, t\u1ec9nh Gia Lai<\/td>\nNguy\u1ec5n \u00c1i T\u00e2m, H\u00e0 Th\u0103ng Long, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn, L\u00e2m V\u0103n T\u1ecbnh, Nguy\u1ec5n Ho\u00e0ng L\u00e2m, B\u00f9i V\u0103n Tu\u1ea5n, Tr\u1ea7n Ng\u1ecdc To\u00e0n<\/td>\nSurvey of the northern buff-cheeked crested gibbon (Nomascus annamensis) and gibbon conservation status in Kon Ka Kinh National park<\/td>\n94<\/td>\n<\/tr>\n
12<\/td>\nD\u1eabn li\u1ec7u \u0111a d\u1ea1ng th\u00e0nh ph\u1ea7n lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u00f3 x\u01b0\u01a1ng s\u1ed1ng (th\u00fa, l\u01b0\u1ee1ng c\u01b0, b\u00f2 s\u00e1t) t\u1ea1i h\u00e0nh lang k\u1ebft n\u1ed1i V\u01b0\u1eddn Qu\u1ed1c gia Kon Ka Kinh v\u00e0 Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean Kon Ch\u01b0 R\u0103ng, t\u1ec9nh Gia Lai<\/td>\nNguy\u1ec5n \u00c1i T\u00e2m, Tr\u1ea7n H\u1eefu V\u1ef9, Nguy\u1ec5n Th\u00e0nh Lu\u00e2n, B\u00f9i V\u0103n Tu\u1ea5n, Ho\u00e0ng Qu\u1ed1c Huy, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn, H\u00e0 Th\u0103ng Long<\/td>\nPreliminary results of species diversy of vertebare (mammal, amphibian, and reptile) at green connection area between Kon Ka Kinh National Park and Kon Chu Rang Nature reserve, Gia Lai province<\/td>\n104<\/td>\n<\/tr>\n
13<\/td>\nB\u01b0\u1edbc \u0111\u1ea7u x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n c\u00f4n tr\u00f9ng t\u1ea1i Khu B\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean Th\u01b0\u1ee3ng Ti\u1ebfn, H\u00f2a B\u00ecnh<\/td>\nL\u00ea B\u1ea3o Thanh<\/td>\nInitial data on the composition of insects in Thuong Tien Nature reserve, Hoa Binh province<\/td>\n117<\/td>\n<\/tr>\n
14<\/td>\n\u0110\u1eb7c \u0111i\u1ec3m ph\u00e2n b\u1ed1, ki\u1ec3u th\u1ea3m th\u1ef1c v\u1eadt c\u1ee7a c\u00e2y \u0110\u1ea3ng s\u00e2m (Codonopsis javanica<\/i> (Blume) Hook. F. & Thomson.) \u1edf L\u00e2m \u0110\u1ed3ng<\/td>\nNguy\u1ec5n Th\u00e0nh M\u1ebfn, Ho\u00e0ng Thanh Tr\u01b0\u1eddng<\/td>\nCharacteristic distribution and vegetation type of Codonopsis javanica <\/i>(Blume) Hook. f. & Thomson. in Lam Dong province, Vietnam<\/td>\n123<\/td>\n<\/tr>\n
15<\/td>\nTh\u1ef1c tr\u1ea1ng c\u01a1 ch\u1ebf khuy\u1ebfn kh\u00edch \u0111\u1ed1i v\u1edbi c\u00e1n b\u1ed9 trong h\u1ec7 th\u1ed1ng khu b\u1ea3o t\u1ed3n \u1edf Vi\u1ec7t Nam<\/td>\nT\u1ea1 Th\u1ecb Th\u1eafm, Tr\u1ea7n Th\u1ecb Kim Ng\u00e2n<\/td>\nThe status of the incentive mechanisms in the protected area management systems in Vietnam<\/td>\n133<\/td>\n<\/tr>\n
16<\/td>\nC\u1ea5u t\u1ea1o gi\u1ea3i ph\u1eabu c\u1ee7a g\u1ed7 Xoan nh\u1eeb Choerospondias axillaris<\/i> (Roxb.) Burtt & Hill<\/td>\nL\u1ea1i Thanh H\u1ea3i, \u0110\u1ed7 V\u0103n B\u1ea3n<\/td>\nWood anatomical structure of Choerospondias axillaris<\/i> (Roxb.) Burtt & Hill<\/td>\n144<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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PH\u00c5N T\u00cdCH \u0110A D\u1ea0NG DI TRUY\u1ec0N M\u1ed8T S\u1ed0 LO\u00c0I B\u1ea0CH \u0110\u00c0N L\u00c0M C\u01a0 S\u1ede CHO VI\u1ec6C LAI T\u1ea0O GI\u1ed0NG M\u1edaI<\/b><\/p>\n

Nguy\u1ec5n Vi\u1ec7t T\u00f9ng, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Th\u1ecb Linh \u0110am <\/b><\/p>\n

Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT <\/b>Nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng 34 m\u1ed3i SSR trong ph\u00e2n t\u00edch \u0111a d\u1ea1ng di truy\u1ec1n c\u1ee7a 19 c\u00e2y b\u1ed1 m\u1eb9 thu\u1ed9c 3 lo\u00e0i b\u1ea1ch \u0111\u00e0n \u0111\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 huy\u1ebft th\u1ed1ng gi\u1eefa c\u00e1c c\u00e2y trong lo\u00e0i v\u00e0 gi\u1eefa c\u00e1c lo\u00e0i v\u1edbi nhau l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c b\u1ed1 m\u1eb9 lai th\u00edch h\u1ee3p nh\u1ea5t. Kho\u1ea3ng c\u00e1ch di truy\u1ec1n gi\u1eefa 19 m\u1eabu (c\u00e2y) b\u1ea1ch \u0111\u00e0n thu\u1ed9c 3 lo\u00e0i nghi\u00ean c\u1ee9u n\u1eb1m [0,28; 3,882]. Kho\u1ea3ng c\u00e1ch di truy\u1ec1n gi\u1eefa c\u00e1c c\u00e2y trong lo\u00e0i B\u1ea1ch \u0111\u00e0n camal (E. camaldunensis<\/i>) l\u00e0 th\u1ea5p (0,712), ti\u1ebfp \u0111\u1ebfn l\u00e0 lo\u00e0i B\u1ea1ch \u0111\u00e0n ur\u00f4 (E. urophylla<\/i>) \u0111\u1ea1t 0,836 cu\u1ed1i c\u00f9ng l\u00e0 lo\u00e0i B\u1ea1ch \u0111\u00e0n li\u1ec5u (E. exserta<\/i>) v\u1edbi kho\u1ea3ng c\u00e1ch di truy\u1ec1n trung b\u00ecnh trong lo\u00e0i l\u00e0 1,183. V\u1edbi 19 m\u1eabu b\u1ea1ch \u0111\u00e0n nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c chia th\u00e0nh hai nh\u00e1nh: + Nh\u00e1nh m\u1ed9t l\u00e0 nh\u00f3m lo\u00e0i B\u1ea1ch \u0111\u00e0n li\u1ec5u v\u00e0 B\u1ea1ch \u0111\u00e0n camal, khi lai gi\u1ed1ng gi\u1eefa 2 nh\u00f3m lo\u00e0i n\u00e0y v\u1edbi nhau th\u01b0\u1eddng cho sinh tr\u01b0\u1edfng k\u00e9m so v\u1edbi lai gi\u1ed1ng thu\u1eadn ngh\u1ecbch gi\u1eefa nh\u00f3m lo\u00e0i B\u1ea1ch \u0111\u00e0n uro v\u1edbi B\u1ea1ch \u0111\u00e0n camal v\u00e0 B\u1ea1ch \u0111\u00e0n li\u1ec5u. ++ Nh\u00e1nh hai ch\u1ec9 c\u00f3 c\u00e1c m\u1eabu thu\u1ed9c nh\u00f3m lo\u00e0i B\u1ea1ch \u0111\u00e0n uro. Nh\u01b0 v\u1eady, lo\u00e0i B\u1ea1ch \u0111\u00e0n camal v\u00e0 B\u1ea1ch \u0111\u00e0n li\u1ec5u c\u00f3 quan h\u1ec7 h\u1ecd h\u00e0ng g\u1ea7n nhau h\u01a1n so v\u1edbi B\u1ea1ch \u0111\u00e0n ur\u00f4, do \u0111\u00f3 khi lai gi\u1ed1ng gi\u1eefa B\u1ea1ch \u0111\u00e0n ur\u00f4 v\u1edbi B\u1ea1ch \u0111\u00e0n li\u1ec5u, B\u1ea1ch \u0111\u00e0n camal c\u00e1c t\u1ed5 h\u1ee3p lai th\u01b0\u1eddng c\u00f3 \u01b0u th\u1ebf lai nhi\u1ec1u h\u01a1n so v\u1edbi t\u1ed5 h\u1ee3p lai thu\u1eadn ngh\u1ecbch gi\u1eefa B\u1ea1ch \u0111\u00e0n camal v\u1edbi B\u1ea1ch \u0111\u00e0n li\u1ec5u.T\u1eeb kh\u00f3a: <\/i><\/b>\u0110a d\u1ea1ng di truy\u1ec1n, kho\u1ea3ng c\u00e1ch di truy\u1ec1n, E. camaldunensis, E. urophylla, E. exserta<\/i><\/p>\n

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Analysis of genetic diversity in Eucalypts as basis for breeding program <\/b>Thirty-four SSR primers was used to analyze genetic diversity of 19 parent trees of three Eucalyptus species to identify phylogenetic relationships among trees of one species and trees in different species. This is the basis for selecting the most suitable hybrid parents. Genetic distances in 19 samples of three species of Eucalyptus in this study is [0.28; 3.882]. Genetic distances between the trees of E. camaldunensis <\/i>is low (0.712), followed by E. urophylla <\/i>at 0.836 and E. exserta <\/i>at 1.183. Nineteen studied Eucalyptus samples was divided into two groups: i) Group one is including E. exserta <\/i>and E. camaldunensis<\/i>, when their hybrid often grow slowly compared with reversible hybridization between E. urophylla <\/i>with E. exserta <\/i>and E. camaldunensis<\/i>; ii) Group two consists only E. urophylla<\/i>. The high genetic diversity between trees in different species and in one species has more significant in breeding and hybridization. In conclusion, E. camaldunensis <\/i>and E. exserta <\/i>has close kinship than E. urophylla<\/i>, therefore hybrid combinations of E. urophylla <\/i>x E. exserta <\/i>are usually more dominant than reciprocal hybrid combinations between E. camal <\/i>with E. exserta<\/i>.Keywords: <\/i><\/b>Genetic diversity, genetic distance, E. camaldunensis, E. urophylla, E. exserta<\/i><\/p>\n

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NGHI\u00caN C\u1ee8U CH\u1ec8 TH\u1eca SSR LI\u00caN QUAN \u0110\u1ebeN T\u00cdNH TR\u1ea0NG SINH TR\u01af\u1edeNG C\u1ee6A B\u1ea0CH \u0110\u00c0N LAI (E. urophylla <\/i><\/b>x E. exserta, E. urophylla <\/i><\/b>x E. camaldulensi <\/i>)<\/b><\/p>\n

Nguy\u1ec5n Th\u1ecb Linh \u0110am, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Vi\u1ec7t T\u00f9ng <\/b><\/p>\n

Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT <\/b>\u0110\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao c\u00e2y l\u00e0 t\u00ednh tr\u1ea1ng s\u1ed1 l\u01b0\u1ee3ng quan tr\u1ecdng c\u1ea5u th\u00e0nh n\u0103ng su\u1ea5t. N\u0103ng su\u1ea5t l\u00e0 t\u00ednh tr\u1ea1ng s\u1ed1 l\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p, v\u1ec1 c\u01a1 b\u1ea3n n\u00f3 l\u00e0 t\u1ed5ng h\u1ee3p c\u1ee7a nhi\u1ec1u t\u00ednh tr\u1ea1ng kh\u00e1c nhau. N\u0103ng su\u1ea5t c\u00f3 h\u1ec7 s\u1ed1 di truy\u1ec1n th\u1ea5p, c\u00f3 ch\u1ecbu \u1ea3nh h\u01b0\u1edfng l\u1edbn c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec1u gen. Trong nghi\u00ean c\u1ee9u n\u00e0y, 205 c\u1eb7p m\u1ed3i SSR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ecm hi\u1ec3u m\u1ed1i li\u00ean quan gi\u1eefa n\u0103ng su\u1ea5t v\u00e0 ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed SSR th\u00f4ng qua 104 c\u00e2y (m\u1eabu) thu\u1ed9c c\u00e1c t\u1ed5 h\u1ee3p lai thu\u1eadn ngh\u1ecbch U29E1 v\u00e0 h\u1eadu th\u1ebf b\u1ed1 m\u1eb9 c\u1ee7a ch\u00fang c\u0169ng nh\u01b0 60 d\u00f2ng (m\u1eabu) b\u1ea1ch \u0111\u00e0n lai thu\u1ed9c c\u00e1c t\u1ed5 h\u1ee3p lai E. urophylla <\/i>x E. camaldulensis <\/i>(UC) v\u00e0 E. urophylla <\/i>x E. exserta <\/i>(UE). Trong s\u1ed1 205 ch\u1ec9 th\u1ecb, nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 8 ch\u1ec9 th\u1ecb: EMBRA39, EMBRA78, EMBRA124, EMBRA168, EMBRA196, EMBRA208, EMBRA209, EMBRA229 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c d\u00f2ng sinh tr\u01b0\u1edfng nhanh v\u00e0 sinh tr\u01b0\u1edfng ch\u1eadm cho c\u00e1c d\u00f2ng lai UE v\u00e0 UC.T\u1eeb kh\u00f3a: <\/i><\/b>Ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed, b\u1ea1ch \u0111\u00e0n lai, SSR<\/p>\n

 <\/td>\n<\/tr>\n

Study on the association of simple sequence repeat (SSR) markers with growth trait in eucalyptus hybrid (E. urophylla <\/i><\/b>x E. exserta, E. urophylla <\/i><\/b>x E. camaldulensi ) <\/i><\/b>The diameter and height of the tree are important quantitative traits which constitute productivity. Productivity is the amount of complex traits, basically it is a combination of many different traits. Productivity has low heritability, which is influenced by environmental factors and by many genes. In this study, 205 SSR primer pairs were used to analysis the relationship between productivity and SSR marker through 104 trees (samples) of the reciprocal hybrid combinations U29E1 and their posterity parents as well as 60 clones (samples) of hybrid combinations E. urophylla <\/i>x E. camaldulensis <\/i>(UC) and E. urophylla <\/i>x E. exserta <\/i>(UE). In 205 markers, the result showed that eight markers: EMBRA39, EMBRA78, EMBRA124, EMBRA168, EMBRA196, EMBRA208, EMBRA209, EMBRA229 can be used to distinguish the fast and slow growth clones for UE and UC.Keywords: <\/i><\/b>Eucalyptus hybrid, molecular marker, SSR<\/p>\n

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

K\u1ebeT QU\u1ea2 KH\u1ea2O NGHI\u1ec6M M\u1ede R\u1ed8NG C\u00c5Y NH\u1eacP N\u1ed8I (B\u1ea0CH \u0110\u00c0N, TH\u00d4NG, KEO) \u1ede V\u00d9NG CAO M\u1ed8T S\u1ed0 T\u1ec8NH MI\u1ec0N N\u00daI PH\u00cdA B\u1eaeC<\/b><\/p>\n

B\u00f9i Tr\u1ecdng Th\u1ee7y, Nguy\u1ec5n C\u00f4ng Ph\u01b0\u01a1ng <\/b><\/p>\n

Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p \u0110\u00f4ng B\u1eafc B\u1ed9<\/i><\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT <\/b>K\u1ebft qu\u1ea3 m\u1edf r\u1ed9ng c\u00e2y nh\u1eadp n\u1ed9i (b\u1ea1ch \u0111\u00e0n, th\u00f4ng, keo) \u1edf v\u00f9ng cao (\u0111\u1ed9 cao 700 – 1.200m) t\u1ea1i Y\u00ean B\u00e1i, Cao B\u1eb1ng v\u00e0 S\u01a1n La: cho th\u1ea5y 2 lo\u00e0i B\u1ea1ch \u0111\u00e0n E. urophylla<\/i>, E. grandis <\/i>c\u00f3 tri\u1ec3n v\u1ecdng \u0111\u1ed1i v\u1edbi t\u1ec9nh Cao B\u1eb1ng v\u00e0 Y\u00ean B\u00e1i (sau 38 th\u00e1ng tr\u1ed3ng, t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 87,7 – 89,9%, n\u0103ng su\u1ea5t \u0111\u1ea1t 12,18 – 12,59 m3\/ha\/n\u0103m); lo\u00e0i Th\u00f4ng carib\u00ea c\u00f3 tri\u1ec3n v\u1ecdng c\u1ea3 3 t\u1ec9nh (sau 38 th\u00e1ng tr\u1ed3ng t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 86,6 – 89,3%, n\u0103ng su\u1ea5t 0,47 – 1,07 m3\/ha\/n\u0103m); Keo lai c\u00f3 tri\u1ec3n v\u1ecdng \u0111\u1ed1i v\u1edbi t\u1ec9nh Cao B\u1eb1ng (sau 38 th\u00e1ng tu\u1ed5i t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 84,2% v\u00e0 n\u0103ng su\u1ea5t sinh kh\u1ed1i \u0111\u1ea1t trung b\u00ecnh 12,10 m3\/ha\/n\u0103m). C\u00e1c lo\u00e0i B\u1ea1ch \u0111\u00e0n E. microcorys <\/i>v\u00e0 Keo mearnsii<\/i>, Keo melanoxylon <\/i>t\u1ecf ra k\u00e9m th\u00edch nghi v\u1edbi \u0111i\u1ec1u ki\u1ec7n v\u00f9ng cao t\u1ea1i 3 t\u1ec9nh nghi\u00ean c\u1ee9u, v\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng dao \u0111\u1ed9ng 79,1 – 82,5%, n\u0103ng su\u1ea5t sinh kh\u1ed1i ch\u1ec9 \u0111\u1ea1t 0,35 – 2,39 m3\/ha\/n\u0103m sau 38 th\u00e1ng tr\u1ed3ng.T\u1eeb kh\u00f3a: <\/i><\/b>C\u00e2y nh\u1eadp n\u1ed9i, mi\u1ec1n n\u00fai ph\u00eda B\u1eafc, kh\u1ea3o nghi\u1ec7m, v\u00f9ng cao<\/p>\n

 <\/td>\n<\/tr>\n

Results of planting trial of exotic species (Eucalyptus, Pinus, Acacia) in high areas of some Northern mountainous provinces <\/b>Results of planting trial of exotic species (Eucalyptus, Pinus, Acacia<\/i>) in high area (700 – 1.200m above sea level) in Yen Bai, Cao Bang and Son La provinces showed that E. urophylla <\/i>and E. grandis <\/i>are potential to grow in Cao Bang and Yen Bai provinces (38 months after planting, the survival rate was 87.7 – 89.9%, the productivity was 12.18 – 12.59 m3\/ha\/year); Pinus caribaea <\/i>is potential in all 3 provinces (after 38 months old, the survival rate was 86.6 – 89.3%, the productivity was 0.47 \u2013 1.07 m3\/ha\/year); Hybrid Acacia <\/i>is potential in Cao Bang province (after 38 months old, the survival rate was 84.2% and the productivity was 12.10 m3\/ha\/year). However, E. microcory, A. mearnsii <\/i>and A<\/i>. melanoxylon <\/i>are not good when planting in high areas of the 3 above provinces, as the survival rate was 79.1 – 82.5%, and the productivity was only 0.35 – 2.39 m3\/ha\/year, 38 months after planting.Keywords: <\/i><\/b>Exotic species, Northern moutainous area, high area<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u1ed8T S\u1ed0 \u0110\u1eb6C \u0110I\u1ec2M L\u00c5M H\u1eccC C\u1ee6A C\u00c5Y D\u1ea6U C\u00c1T (DIPTEROCARPUS CHARTACEUS <\/i>SYM) T\u1ea0I KHU B\u1ea2O T\u1ed2N THI\u00caN NHI\u00caN T\u00c0 K\u00d3U, T\u1ec8NH B\u00ccNH THU\u1eacN<\/b><\/p>\n

\u00a0Nguy\u1ec5n Minh Thanh1, L\u00ea V\u0103n Long2<\/b><\/p>\n

1Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/p>\n\n\n\n\n
\n

2Ph\u00e2n hi\u1ec7u \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p mi\u1ec1n Nam<\/i><\/p>\n

T\u00d3M T\u1eaeT <\/b><\/p>\n

B\u00e0i b\u00e1o tr\u00ecnh b\u00e0y \u0111\u1eb7c \u0111i\u1ec3m l\u00e2m h\u1ecdc c\u1ee7a c\u00e2y D\u1ea7u c\u00e1t (Dipterocarpus chartaceus <\/i>Sym) t\u1ea1i khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean T\u00e0 K\u00f3u, t\u1ec9nh B\u00ecnh Thu\u1eadn. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y: t\u1ed5 th\u00e0nh t\u1ea7ng c\u00e2y cao c\u1ee7a l\u00e2m ph\u1ea7n c\u00f3 D\u1ea7u c\u00e1t ph\u00e2n b\u1ed1 kh\u00e1 \u0111a d\u1ea1ng, bi\u1ebfn \u0111\u1ed9ng t\u1eeb 18 \u0111\u1ebfn 30 lo\u00e0i, trong \u0111\u00f3 c\u00f3 t\u1eeb 4 – 6 lo\u00e0i tham gia v\u00e0o c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh. C\u00e1c qu\u1ea7n x\u00e3 c\u00f3 D\u1ea7u c\u00e1t ph\u00e2n b\u1ed1 t\u1ea1i khu v\u1ef1c \u0111\u1ec1u c\u00f3 5 t\u1ea7ng t\u00e1n, trong \u0111\u00f3 D\u1ea7u c\u00e1t ch\u1ec9 c\u00f3 m\u1eb7t \u1edf t\u1ea7ng A2 v\u00e0 t\u1ea7ng d\u01b0\u1edbi t\u00e1n. Kho\u1ea3ng c\u00e1ch trung b\u00ecnh t\u1eeb c\u00e2y D\u1ea7u c\u00e1t \u0111\u1ebfn c\u00e1c c\u00e2y b\u1ea1n l\u00e0 4,15 m\u00e9t, kho\u1ea3ng c\u00e1ch xa nh\u1ea5t l\u00e0 9 m\u00e9t v\u00e0 g\u1ea7n nh\u1ea5t l\u00e0 0,5 m\u00e9t. Quy lu\u1eadt ph\u00e2n b\u1ed1 s\u1ed1 c\u00e2y theo \u0111\u01b0\u1eddng k\u00ednh (N\/D1.3) v\u00e0 ph\u00e2n b\u1ed1 s\u1ed1 c\u00e2y theo chi\u1ec1u cao v\u00fat ng\u1ecdn (N\/Hvn) c\u1ee7a r\u1eebng t\u1ef1 nhi\u00ean IIA, IIB v\u00e0 IIIA1 c\u00f3 th\u1ec3 m\u00f4 ph\u1ecfng t\u1ed1t b\u1eb1ng ph\u00e2n b\u1ed1 Meyer; m\u1ed1i quan h\u1ec7 gi\u1eefa Hvn v\u00e0 D1.3 c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y trong 5 \u00f4 ti\u00eau chu\u1ea9n kh\u00e1 ch\u1eb7t (R2 = 0,73). T\u00ecnh h\u00ecnh t\u00e1i sinh t\u1ef1 nhi\u00ean t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t, ri\u00eang lo\u00e0i D\u1ea7u c\u00e1t m\u1eadt \u0111\u1ed9 c\u00e2y t\u00e1i sinh l\u00e0 448 c\u00e2y\/ha, chi\u1ebfm 7% t\u1ed5ng s\u1ed1 c\u00e2y t\u00e1i sinh. D\u1ea7u c\u00e1t t\u00e1i sinh tri\u1ec3n v\u1ecdng trung b\u00ecnh l\u00e0 160 c\u00e2y\/ha, chi\u1ebfm 2,5% t\u1ed5ng s\u1ed1 c\u00e2y t\u00e1i sinh. H\u00ecnh th\u00e1i ph\u00e2n b\u1ed1 c\u00e2y t\u00e1i sinh tr\u00ean m\u1eb7t \u0111\u1ea5t t\u1ea1i khu v\u1ef1c c\u00f3 d\u1ea1ng ph\u00e2n b\u1ed1 ng\u1eabu nhi\u00ean v\u00e0 m\u1ea1ng h\u00ecnh ph\u00e2n b\u1ed1 c\u00e2y trong c\u00e1c \u00f4 \u0111i\u1ec1u tra tu\u00e2n theo ph\u00e2n b\u1ed1 c\u1ee5m.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>B\u00ecnh Thu\u1eadn, D\u1ea7u c\u00e1t, l\u00e2m h\u1ecdc, khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean, T\u00e0 K\u00f3u<\/td>\n<\/tr>\n

\u00a0<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Silvicultural characteristics of Dipterocarpus chartaceus <\/i>Sym in Ta Kou natural reserve, Binh Thuan province <\/b><\/p>\n

The report aims at studying silvicultural characteristics of Dipterocarpus chartaceus <\/i>Sym in Ta Kou Natural reserve in Binh Thuan. The result shows that overstory tree composition was various with about 18 – 30 species were recorded, in which 4 – 6 species contributed in composition formula. In communities that have Dipterocarpus chartaceus <\/i>Sym to distribute, they all had 5 canopy layers, in which Dipterocarpus chartaceus <\/i>Sym was only found in A2 and understory layers. Average distance from each Dipterocarpus chartaceus <\/i>plant to other plants was 4.15 metres, the longest was 9 metres and the shortest is 0.5 metres. Tree distribution rule that based on diameter (N\/DBH) and on total height (N\/Hvn) in natural forest types IIA, IIB and IIIA1 can be simulated by using Mayer distribution rule; moreover, there was a strong relationship between H and DBH of plants growing in 5 sample plots with R2 = 0.73. The state of natural regeneration was observed in good process, in which the density of Dipterocarpus chartaceus <\/i>Sym were 448 trees\/ha, amounted to 7% in total regenerating trees. Average of potential regenerating Dipterocarpus chartaceus<\/i>Sym plants about 160 trees\/ha, amounted to 2.5% in total. In the whole area, distribution type of tree species was random distribution and in the surveyed plots it was cluster distribution.<\/p>\n

Keywords: <\/i><\/b>BinhThuan, Dipterocarpus chartaceus <\/i>Sym, silviculture, satural reserve, Ta Kou<\/p>\n

 <\/p>\n

M\u1ed8T S\u1ed0 \u0110\u1eb6C \u0110I\u1ec2M SINH L\u00dd C\u00dbA C\u00c5Y XOAN NH\u1eea (Choerospondias axillaris) <\/i>(Roxb.) Burtt & Hill<\/b><\/p>\n

H\u00e0 Th\u1ecb M\u1eebng1, L\u1ea1i Thanh H\u1ea3i2 <\/b><\/p>\n

1 Vi\u1ec7n Nghi\u00ean c\u1ee9u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng<\/i><\/p>\n

\u00a02 Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Xoan nh\u1eeb Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill l\u00e0 c\u00e2y g\u1ed7 l\u1edbn m\u1ecdc nhanh, ph\u00e2n b\u1ed1 r\u1ed9ng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd c\u1ee7a Xoan nh\u1eeb \u1edf c\u00e1c \u0111\u1ed9 tu\u1ed5i kh\u00e1c nhau cho th\u1ea5y: L\u00e1 Xoan nh\u1eeb c\u1ee7a c\u00e1c c\u00e2y t\u1eeb nh\u1ecf \u0111\u1ebfn tr\u01b0\u1edfng th\u00e0nh c\u00f3 chi\u1ec1u d\u00e0y l\u00e0 177,5\u03bcm – 292,3\u03bcm. \u0110\u1ed9 d\u00e0y m\u00f4 d\u1eadu l\u00e0 67,8\u03bcm – 121,9\u03bcm. \u0110\u1ed9 d\u00e0y m\u00f4 khuy\u1ebft l\u00e0 65,2\u03bcm – 96,2\u03bcm. T\u1ef7 l\u1ec7 m\u00f4 d\u1eadu\/m\u00f4 khuy\u1ebft c\u1ee7a l\u00e1 c\u00e2y t\u00e1i sinh, c\u00e2y 6 th\u00e1ng tu\u1ed5i trong v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 c\u00e2y 1 tu\u1ed5i \u1edf r\u1eebng tr\u1ed3ng l\u00e0 0,95 – 0,97, c\u00f2n \u1edf c\u00e1c tu\u1ed5i sau \u0111\u1ec1u l\u1edbn h\u01a1n 1. S\u1ed1 l\u01b0\u1ee3ng kh\u00ed kh\u1ed5ng \u1edf m\u1eb7t d\u01b0\u1edbi l\u00e1 l\u00e0 85 – 161 c\u00e1i\/mm2 l\u00e1. H\u00e0m l\u01b0\u1ee3ng di\u1ec7p l\u1ee5c t\u1ed5ng s\u1ed1 trong l\u00e1 c\u00e2y giai \u0111o\u1ea1n nh\u1ecf (\u0111\u1ebfn 2 n\u0103m tu\u1ed5i) l\u00e0 2,53 -2,88mg\/g l\u00e1 t\u01b0\u01a1i, t\u1ef7 l\u1ec7 dla\/dlb l\u00e0 2,6 – 2,9. C\u00e2y 4 tu\u1ed5i c\u00f3 h\u00e0m l\u01b0\u1ee3ng di\u1ec7p l\u1ee5c t\u1ed5ng s\u1ed1 trong l\u00e1 l\u00e0 2,94mg\/g l\u00e1 t\u01b0\u01a1i v\u00e0 t\u1ef7 l\u1ec7 dla\/dlb l\u00e0 3,0. T\u1eeb 6 tu\u1ed5i tr\u1edf \u0111i c\u00e2y c\u00f3 h\u00e0m l\u01b0\u1ee3ng di\u1ec7p l\u1ee5c t\u1ed5ng s\u1ed1 l\u00e0 3,16 – 3,57mg\/g l\u00e1 t\u01b0\u01a1i v\u00e0 t\u1ef7 l\u1ec7 dla\/dlb l\u1edbn h\u01a1n 3 (3 – 3,7). \u0110\u1ebfn 2 tu\u1ed5i, Xoan nh\u1eeb l\u00e0 c\u00e2y ch\u1ecbu b\u00f3ng thi\u00ean v\u1ec1 trung t\u00ednh, giai \u0111o\u1ea1n 4 tu\u1ed5i th\u1ec3 hi\u1ec7n s\u1ef1 trung t\u00ednh v\u1ec1 \u00e1nh s\u00e1ng v\u00e0 t\u1eeb 6 tu\u1ed5i tr\u1edf \u0111i c\u00e2y \u01b0a s\u00e1ng ho\u00e0n to\u00e0n. L\u00e1 Xoan nh\u1eeb b\u1eaft \u0111\u1ea7u b\u1ecb t\u1ed5n th\u01b0\u01a1ng \u1edf nhi\u1ec7t \u0111\u1ed9 40oC, sau \u0111\u00f3, nhi\u1ec7t \u0111\u1ed9 c\u00e0ng t\u0103ng th\u00ec l\u00e1 c\u00e0ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng. \u1ede nhi\u1ec7t \u0111\u1ed9 60oC l\u00e1 c\u00e2y \u1edf v\u01b0\u1eddn \u01b0\u01a1m b\u1ecb t\u1ed5n th\u01b0\u01a1ng 90%, c\u00f2n l\u00e1 c\u00e2y \u1edf c\u00e1c tu\u1ed5i l\u1edbn h\u01a1n b\u1ecb t\u1ed5n th\u01b0\u01a1ng \u1edf m\u1ee9c 40 – 75%.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>C\u1ea5u t\u1ea1o gi\u1ea3i ph\u1eabu, h\u00e0m l\u01b0\u1ee3ng di\u1ec7p l\u1ee5c, t\u00ednh ch\u1ecbu n\u00f3ng, Xoan nh\u1eeb<\/p>\n

Some physiological characteristic of Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill <\/b><\/p>\n

Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill is a large commercial woody, fast growing, wide-distribution tree. The research result of some physiological characteristics of Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill at different ages showed that: Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill leaves of young trees to mature trees have a thickness of 177.5\u03bcm -292.3\u03bcm. The thickness of palisade parenchyma is 67.8\u03bcm – 121.9\u03bcm. The thickness of spongy parenchyma is 65.2\u03bcm – 96.2\u03bcm. The palisade parenchyma\/spongy parenchyma proportion of regenerated trees, 6 – month-old trees in nursery and 1 – year-old trees in plantation forest is 0.95 – 0.97, while the figure of the later ages are above 1. The number of stomata in the leaf down surface is from 85 to 161 per mm2. The total chlorophyll content of leaves in young period (up to 2 – year-old) is 2.53 – 2.88mg\/g of fresh leaves, the proportion of dla\/dlb is 2.6 – 2.9. By the age of 4, the total chlorophyll content in the leaves is 2.94 mg\/g of fresh leaves and the proportion of dla\/dlb is 3.0. From 6 years old onwards, the total chlorophyll content is 3.16 – 3.57 mg\/g of fresh leaves and the proportion of dla\/dlb is greater than 3 (3 – 3.7). Up to 2 – year-old, Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill is a neutral shade-resistance plant. 4 years old tree, it expresses light neutrality. From 6 years old onward, it is fully photophilic. Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill leaves are vulnerable at a temperature of 40oC, the higher of temperature, the more vulnerability of the leaves. At a temperature of 60\u00b0C, the leaves in the nursery are 90% damaged, while the leaves of the older ages are damaged from 40 to 75%.<\/p>\n

Keywords: <\/i><\/b>Anatomical structure, Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill, chlorophyll content, heat-resistance<\/p>\n

 <\/p>\n

M\u00d4 H\u00ccNH H\u00d3A PH\u00c5N B\u1ed0 \u0110\u01af\u1edcNG K\u00cdNH C\u1ee6A R\u1eeaNG TR\u1ed2NG TH\u00d4NG BA L\u00c1 (Pinus kesiya <\/i>Royle ex Gordon) TR\u00caN C\u1ea4P \u0110\u1ea4T II D\u1ef0A TR\u00caN H\u00c0M PH\u00c5N B\u1ed0 WEIBULL V\u00c0 RICHARDS<\/b><\/p>\n

Nguy\u1ec5n V\u0103n Th\u00eam <\/b><\/p>\n

Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m Tp. H\u1ed3 Ch\u00ed Minh<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u l\u00e0 x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng h\u00e0m ph\u00e2n b\u1ed1 Weibull v\u00e0 ph\u00e2n b\u1ed1 Richards \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a v\u00e0 d\u1ef1 \u0111o\u00e1n s\u1ed1 c\u00e2y theo c\u1ea5p \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1 t\u1eeb c\u1ea5p tu\u1ed5i 6 – 20 n\u0103m. S\u1ed1 li\u1ec7u thu th\u1eadp \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1 t\u1eeb c\u1ea5p tu\u1ed5i 6 – 20 n\u0103m tr\u00ean c\u1ea5p \u0111\u1ea5t II l\u00e0 8 \u00f4 m\u1eabu \u0111i\u1ec3n h\u00ecnh v\u1edbi k\u00edch th\u01b0\u1edbc 0,2ha; trong \u0111\u00f3 m\u1ed7i c\u1ea5p tu\u1ed5i 1 \u00f4 m\u1eabu. C\u00e1c tham s\u1ed1 c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Weibull v\u00e0 ph\u00e2n b\u1ed1 Richards \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng theo ph\u01b0\u01a1ng ph\u00e1p phi tuy\u1ebfn t\u00ednh. \u00dd ngh\u0129a c\u1ee7a c\u00e1c tham s\u1ed1 c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Richards \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00f4ng qua m\u1ed1i quan h\u1ec7 v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng, ph\u00e2n b\u1ed1 \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1 t\u1eeb c\u1ea5p tu\u1ed5i 6 – 20 n\u0103m tr\u00ean c\u1ea5p \u0111\u1ea5t II c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh h\u00f3a b\u1eb1ng h\u00e0m ph\u00e2n b\u1ed1 Weibull v\u00e0 h\u00e0m ph\u00e2n b\u1ed1 R; trong \u0111\u00f3 h\u00e0m ph\u00e2n b\u1ed1 R ph\u00f9 h\u1ee3p h\u01a1n so v\u1edbi h\u00e0m ph\u00e2n b\u1ed1 Weibull. Ba tham s\u1ed1 c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Richards c\u00f3 quan h\u1ec7 v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1 t\u1eeb c\u1ea5p tu\u1ed5i 6 – 20 n\u0103m. Tham s\u1ed1 v\u1ecb tr\u00ed c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Richards c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng g\u1ea7n \u0111\u00fang d\u1ef1a theo \u0111\u01b0\u1eddng k\u00ednh b\u00ecnh qu\u00e2n v\u00e0 chi\u1ec1u cao b\u00ecnh qu\u00e2n c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1. Tham s\u1ed1 t\u1ef7 l\u1ec7 c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Richards c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng g\u1ea7n \u0111\u00fang d\u1ef1a theo tu\u1ed5i c\u1ee7a r\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1. Tham s\u1ed1 h\u00ecnh d\u1ea1ng c\u1ee7a h\u00e0m ph\u00e2n b\u1ed1 Richards c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng g\u1ea7n \u0111\u00fang d\u1ef1a theo tham s\u1ed1 v\u1ecb tr\u00ed.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>R\u1eebng tr\u1ed3ng Th\u00f4ng ba l\u00e1, c\u1ea5p \u0111\u1ea5t, h\u00e0m ph\u00e2n b\u1ed1 Weibull, h\u00e0m ph\u00e2n b\u1ed1 Richards, h\u00e0m ph\u00e2n b\u1ed1 R, tham s\u1ed1 v\u1ecb tr\u00ed, tham s\u1ed1 t\u1ef7 l\u1ec7, tham s\u1ed1 h\u00ecnh d\u1ea1ng.\u00a0<\/b><\/p>\n

Diameter distribution modelling of plantations Pinus kesiya <\/i>Royle ex Gordon on II site class based on weibull and richards distribution functions <\/b><\/p>\n

The objectives of research is to determine the goodness-of-fit of Weibull and Richards distributions to model and predict the diameter distibution of the plantations Pinus kesiya <\/i>from the age classes 6 to 20 years. Collected data on diameter of plantations Pinus kesiya <\/i>is 8 typical sample plots with size 0.2ha; in which each class of age one sample plot. The parameters of the Weibull and Richards distribution functions is estimated according to the nonlinear method. The meaning of the parameters of the Richards distribution function is assessed through a relationship with the characteristics of plantations Pinus keysia<\/i>. Research results have shown that the diameter distribution of plantations Pinus kesiya <\/i>from the age classes 6 to 20 years on II class can be modeled by using the Weibull and Richards distributions; including Richards distribution function more suitable than Weibull distribution function. The three parameters of the Richards distribution function have a relationship with characteristics of plantations Pinus kesiya<\/i>. The location parameter of the Richards distribution function can be approximate estimate based on the average diameter at breast height and average height of plantations Pinus keysia<\/i>. The scale parameter of the Richards distribution function can be estimated based on age of plantations Pinus kesiya<\/i>. The shape parameter of the Richards distribution function can be estimated based on location parameter.<\/p>\n

Keywords: <\/i><\/b>Plantation Pinus kesiya<\/i>, site class, Weibull distribution function, Richards distribution function, location parameter, scale parameter, shape parameter<\/p>\n

 <\/p>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A KH\u00cd H\u1eacU \u0110\u1ebeN T\u0102NG TR\u01af\u1edeNG \u0110\u01af\u1edcNG K\u00cdNH C\u1ee6A B\u1ea0CH T\u00d9NG (Dacrycarpus imbricatus <\/i>(Blume) de Laub) \u1ede KHU V\u1ef0C \u0110\u00c0 L\u1ea0T V\u00c0 \u0110\u1ee8C TR\u1eccNG THU\u1ed8C T\u1ec8NH L\u00c5M \u0110\u1ed2NG<\/b><\/p>\n

Nguy\u1ec5n V\u0103n Nh\u1eabn <\/b><\/p>\n

Ban Qu\u1ea3n l\u00fd R\u1eebng ph\u00f2ng h\u1ed9 \u0110\u1ea1i Ninh, t\u1ec9nh l\u00e2m \u0110\u1ed3ng<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u00e0i b\u00e1o n\u00e0y gi\u1edbi thi\u1ec7u ph\u1ea3n \u1ee9ng c\u1ee7a B\u1ea1ch t\u00f9ng \u0111\u1ed1i v\u1edbi bi\u1ebfn \u0111\u1ed9ng c\u1ee7a nh\u1eefng y\u1ebfu t\u1ed1 kh\u00ed h\u1eadu. M\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u l\u00e0 ph\u00e2n t\u00edch vai tr\u00f2 c\u1ee7a nh\u1eefng y\u1ebfu t\u1ed1 kh\u00ed h\u1eadu \u0111\u1ed1i v\u1edbi t\u0103ng tr\u01b0\u1edfng b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng. Trong nghi\u00ean c\u1ee9u n\u00e0y, c\u00e1c chu\u1ed7i ni\u00ean \u0111\u1ea1i b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng k\u1ef9 thu\u1eadt ni\u00ean \u0111\u1ea1i th\u1ef1c v\u1eadt. M\u1ed1i quan h\u1ec7 gi\u1eefa t\u0103ng tr\u01b0\u1edfng b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng v\u1edbi nh\u1eefng y\u1ebfu t\u1ed1 kh\u00ed h\u1eadu \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch b\u1eb1ng c\u00e1c h\u1ec7 s\u1ed1 t\u01b0\u01a1ng quan. Vai tr\u00f2 c\u1ee7a nh\u1eefng y\u1ebfu t\u1ed1 kh\u00ed h\u1eadu \u0111\u1ed1i v\u1edbi t\u0103ng tr\u01b0\u1edfng b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch b\u1eb1ng c\u00e1c h\u00e0m ph\u1ea3n h\u1ed3i tuy\u1ebfn t\u00ednh \u0111a bi\u1ebfn. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng, ba y\u1ebfu t\u1ed1 kh\u00ed h\u1eadu ki\u1ec3m so\u00e1t m\u1ea1nh nh\u1ea5t \u0111\u1ed1i v\u1edbi t\u0103ng tr\u01b0\u1edfng b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng l\u00e0 l\u01b0\u1ee3ng m\u01b0a th\u00e1ng 11, s\u1ed1 gi\u1edd n\u1eafng th\u00e1ng 1 v\u00e0 th\u00e1ng 4. S\u1ef1 n\u00e2ng cao c\u1ee7a ba y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ec1u d\u1eabn \u0111\u1ebfn \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ed1i v\u1edbi t\u0103ng tr\u01b0\u1edfng b\u1ec1 r\u1ed9ng v\u00f2ng n\u0103m c\u1ee7a B\u1ea1ch t\u00f9ng.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>Ni\u00ean \u0111\u1ea1i th\u1ef1c v\u1eadt, kh\u00ed h\u1eadu th\u1ef1c v\u1eadt, v\u00f2ng n\u0103m c\u00e2y g\u1ed7, B\u1ea1ch t\u00f9ng, h\u00e0m ph\u1ea3n h\u1ed3i\u00a0<\/b><\/p>\n

Climatic effect on the radial growth of (Dacrycarpus imbricatus <\/i>(Blume) de Laub) in Da Lat and Duc Trong zone, Lam Dong province <\/b><\/p>\n

This article presents the response of Dacrycarpus imbricatus <\/i>to variability of climatic factors. The object of this study is to analyze the role of climatic factors for the ring width growth of Dacrycarpus imbricatus<\/i>. In this study, the ring width chronological series of Dacrycarpus imbricatus <\/i>was built using dendrochronological techniques. Relationship between ring width growth of Dacrycarpus imbricatus <\/i>with climatic factors has been analyzed by the correlation coefficients. The role of climatic factors has been analyzed using stepwise multiplicative linear response functions. Research results showed that three climatic factors controlling the ring width growth of Dacrycarpus imbricatus <\/i>are the precipitation in November, amount of sunshine hours in January and April. The raising of the three factors are leading to a bad influence on the ring width growth of Dacrycarpus imbricatus<\/i>.<\/p>\n

Keywords: <\/i><\/b>Dendrochronology, dendroclimatology, tree ring, Dacrycarpus imbricatus<\/i>, response function<\/p>\n

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

\u1ea2NH H\u01af\u1edeNG C\u1ee6A N\u1ea4M R\u1ec4 N\u1ed8I C\u1ed8NG SINH AM (Arbuscular mycorrhiza<\/i>) T\u1edaI SINH TR\u01af\u1edeNG V\u00c0 C\u1ea2I T\u1ea0O \u0110\u1ea4T B\u00c3I TH\u1ea2I THAN QU\u1ea2NG NINH C\u1ee6A KEO TAI T\u01af\u1ee2NG (Acacia mangium) <\/i>\u1ede V\u01af\u1edcN \u01af\u01a0M<\/b><\/p>\n

V\u0169 Qu\u00fd \u0110\u00f4ng, L\u00ea Qu\u1ed1c Huy v\u00e0 \u0110o\u00e0n \u0110\u00ecnh Tam <\/b><\/p>\n

Vi\u1ec7n Nghi\u00ean c\u1ee9u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Gi\u1ea3i ph\u00e1p c\u00f4ng ngh\u1ec7 sinh h\u1ecdc m\u00f4i tr\u01b0\u1eddng (Bioremediation) k\u1ebft h\u1ee3p s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m c\u00f4ng ngh\u1ec7 vi sinh (Microbialremediation) v\u1edbi th\u1ef1c v\u1eadt (Phytoremediation) \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng hi\u1ec7u qu\u1ea3 cho c\u1ea3i t\u1ea1o ph\u1ee5c h\u1ed3i c\u00e1c khu v\u1ef1c b\u00e3i th\u1ea3i, khai th\u00e1c m\u1ecf hoang h\u00f3a, \u00f4 nhi\u1ec5m, ph\u1ee5c h\u1ed3i th\u1ea3m th\u1ef1c v\u1eadt r\u1eebng v\u00e0 c\u1ea3nh quan h\u1ec7 sinh th\u00e1i v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb t\u1ef1 nhi\u00ean v\u1ed1n c\u00f3. \u0110\u1ea5t b\u00e3i th\u1ea3i m\u1ecf than Ch\u00ednh B\u1eafc v\u00e0 Nam \u0110\u00e8o Nai (Qu\u1ea3ng Ninh) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ed3ng Keo tai t\u01b0\u1ee3ng b\u00f3n nhi\u1ec5m 400 IP ch\u1ebf ph\u1ea9m n\u1ea5m r\u1ec5 n\u1ed9i c\u1ed9ng sinh AM t\u1ea1i v\u01b0\u1eddn \u01b0\u01a1m Vi\u1ec7n Nghi\u00ean c\u1ee9u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng, \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n nhi\u1ec5m.<\/p>\n

Sau 6 th\u00e1ng th\u00ed nghi\u1ec7m k\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u1ebf ph\u1ea9m AM t\u1edbi kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng v\u00e0 c\u1ea3i t\u1ea1o \u0111\u1ea5t b\u00e3i th\u1ea3i than c\u1ee7a Keo tai t\u01b0\u1ee3ng (Acacia mangium<\/i>) cho th\u1ea5y: sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh D0 \u0111\u00e3 t\u0103ng 30 – 35% cao h\u01a1n so v\u1edbi \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n nhi\u1ec5m AM. T\u1ea5t c\u1ea3 c\u00e1c ch\u1ec9 s\u1ed1 l\u00fd h\u00f3a t\u00ednh (pHKCl, P2O5, K2O, m\u00f9n, th\u00e0nh ph\u1ea7n c\u01a1 gi\u1edbi) c\u1ee7a \u0111\u1ea5t b\u00e3i th\u1ea3i sau 6 th\u00e1ng th\u00ed nghi\u1ec7m v\u1edbi keo b\u00f3n nhi\u1ec5m AM \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n t\u0103ng r\u00f5 r\u1ec7t so v\u1edbi \u0111\u1ea5t b\u00e3i th\u1ea3i ban \u0111\u1ea7u tr\u01b0\u1edbc th\u00ed nghi\u1ec7m v\u00e0 so v\u1edbi \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n nhi\u1ec5m AM. C\u00e1c ch\u1ec9 s\u1ed1 kim lo\u1ea1i n\u1eb7ng trong \u0111\u1ea5t b\u00e3i th\u1ea3i c\u0169ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 gi\u1ea3m \u0111\u00e1ng k\u1ec3, As gi\u1ea3m t\u1eeb 0,3 – 1,1 mg\/1000g \u0111\u1ea5t, Pb gi\u1ea3m t\u1eeb 1,1 – 2,4 mg\/1000g \u0111\u1ea5t v\u00e0 Cd gi\u1ea3m t\u1eeb 0,2 – 0,5 mg\/1000g \u0111\u1ea5t so v\u1edbi ban \u0111\u1ea7u. S\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb x\u00e2m nhi\u1ec5m AM (IP) t\u0103ng 5,5 l\u1ea7n so v\u1edbi \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng b\u00f3n nhi\u1ec5m AM tr\u00ean c\u1ea3 2 lo\u1ea1i \u0111\u1ea5t b\u00e3i th\u1ea3i (\u0111\u1ea5t b\u00e3i th\u1ea3i ban \u0111\u1ea7u kh\u00f4ng c\u00f3 AM). C\u1ed9ng sinh c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m Rhizobium c\u1ee7a l\u00f4 b\u00f3n nhi\u1ec5m ch\u1ebf ph\u1ea9m AM t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3 c\u1ea3 v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng, k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh th\u00e1i; Vi khu\u1ea9n ph\u00e2n gi\u1ea3i l\u00e2n c\u1ee7a l\u00f4 th\u00ed nghi\u1ec7m b\u00f3n nhi\u1ec5m ch\u1ebf ph\u1ea9m AM c\u00f3 thay \u0111\u1ed5i h\u01a1n h\u1eb3n so v\u1edbi l\u00f4 th\u00ed nghi\u1ec7m kh\u00f4ng b\u00f3n nhi\u1ec5m ch\u1ebf ph\u1ea9m AM.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>N\u1ea5m r\u1ec5 n\u1ed9i c\u1ed9ng sinh, AM, Keo tai t\u01b0\u1ee3ng, b\u00e3i th\u1ea3i m\u1ecf than, v\u01b0\u1eddn \u01b0\u01a1m<\/p>\n

Effects of Arbuscular mycorrhiza <\/i>on growth and rehabilitation of Acacia mangium <\/i>ability on coal mine tailings in nursery <\/b><\/p>\n

The bioremediation that combined between microbialremediation and phytoremediation would be potentially and effectively applied for cleaning up contaminated sites, especially the abandoned mining areas with their contaminated tailings to restore the ecosystems, landscape, their natural vegetation, forests with inherent natural values. The coal mine tailings of Chinh Bac and Nam Deo Nai (Quang Ninh) were collected and used for the study on effects of Arbuscular mycorrhiza <\/i>(AM) on Acacia growth and its rehabilitation ability to the contaminated soils at nursery of Institute for Forest Ecology and Environment. Each Acacia was planted in 10 kg pots and inoculated with 400 IP AM inoculums per plant, control Acacia was planted in same pots but without AM.<\/p>\n

After 6 months of experiment, the results showed that, diameter growth of the AM inoculated Acacia (DBH) was significantly higher than that in control 30 – 35%. All the checked parameters of soil physical and chemical characteristics (pHKCl, P2O5, K2O, humus, mechanical components) of the substrates with AM inoculated were found to be remarkably improved after 6 months of the experiment as compared to those in control and those before experiment (zero baseline). The cleaning up of heavy metals in the tailings was also examined and found that all the contents of As, Pb and Cd were decreased significantly after 6 months of the experiments as compared to those from the zero baseline, of which As reduced from 0.3 to 1.1 mg\/1000g soil, Pb decreased from 1.1 to 2.4 mg\/1000g soil and Cd fallen from 0.2 to 0.5 mg\/1000 soil. The number of infective propagules (IP) in AM inoculated pots increased 5.5 times as compared to that in control for both types of mine tailings (As zero baseline, the original mine tailings were found with no AM IP). Rhizobium symbiotic nitrogen fixation of applied inoculated AM biomass plot significantly up to both in number, size and morphology; Microbes decompose phosphate of applied biomass AM treatments infections has changed the than those uninoculated AM treatments.<\/p>\n

Keywords: <\/i><\/b>Arbuscular mycorrhiza<\/i>, AM in vitro<\/i>, bioremediation, rehabilitation, Acacia mangium<\/i><\/p>\n

 <\/p>\n

X\u00c1C \u0110\u1ecaNH CARBON L\u01afU GI\u1eee C\u1ee6A R\u1eeaNG L\u1ed2 \u00d4 (Bambusa procure <\/i>A.chev et A.cam) \u1ede KHU V\u1ef0C T\u00c5Y NGUY\u00caN<\/b><\/p>\n

Hu\u1ef3nh Th\u1ecb Ki\u1ec1u Trinh1, B\u00f9i Hi\u1ebfn \u0110\u1ee9c2, Nguy\u1ec5n H\u1ea3i H\u00f2a3 <\/b><\/p>\n

1Vi\u1ec7n KHLN Nam Trung B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean- L\u00e2m \u0110\u1ed3ng<\/i><\/p>\n

\u00a02C\u00f4ng ty TNHH DV KHKT Khoa \u0110\u0103ng- L\u00e2m \u0110\u1ed3ng<\/i><\/p>\n

\u00a03Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

R\u1eebng L\u1ed3 \u00f4 mang l\u1ea1i cho con ng\u01b0\u1eddi nhi\u1ec1u gi\u00e1 tr\u1ecb v\u1ec1 kinh t\u1ebf, v\u0103n h\u00f3a v\u00e0 c\u1ea3 gi\u00e1 tr\u1ecb m\u00f4i tr\u01b0\u1eddng. Nh\u01b0ng nh\u1eadn th\u1ee9c c\u1ee7a c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd c\u0169ng nh\u01b0 c\u1ed9ng \u0111\u1ed3ng cho r\u1eb1ng n\u00f3 c\u00f3 \u00edt gi\u00e1 tr\u1ecb v\u00e0 \u0111ang ch\u1eb7t ph\u00e1 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u1ea5t v\u00e0 khai th\u00e1c qu\u00e1 m\u1ee9c. \u0110\u1eb7c bi\u1ec7t, trong giai \u0111o\u1ea1n hi\u1ec7n nay khi v\u1ea5n \u0111\u1ec1 d\u00e2n s\u1ed1 gia t\u0103ng, thay \u0111\u1ed5i c\u01a1 c\u1ea5u c\u00e2y tr\u1ed3ng, nhu c\u1ea7u \u0111\u1ea5t cho s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p ng\u00e0y c\u00e0ng t\u0103ng n\u00ean vi\u1ec7c ch\u1eb7t ph\u00e1 r\u1eebng tre n\u1ee9a, L\u1ed3 \u00f4 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ee5c \u0111\u00edch nh\u01b0 tr\u1ed3ng cao su, c\u00e0 ph\u00ea ho\u1eb7c tr\u1ed3ng c\u00e1c lo\u1ea1i c\u00e2y n\u00f4ng nghi\u1ec7p kh\u00e1c l\u00e0m cho di\u1ec7n t\u00edch r\u1eebng L\u1ed3 \u00f4 ng\u00e0y m\u1ed9t gi\u1ea3m \u0111i. S\u1ef1 t\u00e0n ph\u00e1 di\u1ec7n t\u00edch r\u1eebng n\u00f3i chung v\u00e0 r\u1eebng tre n\u1ee9a L\u1ed3 \u00f4 n\u00f3i ri\u00eang, kh\u00f4ng nh\u1eefng g\u00e2y m\u1ea5t c\u00e2n b\u1eb1ng sinh th\u00e1i \u1edf n\u01b0\u1edbc ta m\u00e0 c\u00f2n l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 CO2 v\u00e0 gi\u00e1n ti\u1ebfp l\u00e0m t\u0103ng th\u00eam l\u01b0\u1ee3ng kh\u00ed CO2 ph\u00e1t th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n, l\u00e0m cho bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu to\u00e0n c\u1ea7u t\u0103ng nhanh. V\u00ec v\u1eady, m\u1ed9t trong nh\u1eefng c\u00e1ch th\u1ee9c qu\u1ea3n l\u00fd b\u1ec1n v\u1eefng lo\u1ea1i r\u1eebng n\u00e0y \u0111\u1ec3 nh\u1eb1m ph\u00e1t tri\u1ec3n kinh t\u1ebf, v\u0103n h\u00f3a th\u1ea9m m\u0129 song song v\u1edbi v\u1ea5n \u0111\u1ec1 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng \u0111\u00f3 l\u00e0 t\u00ednh \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 CO2 c\u1ee7a lo\u1ea1i r\u1eebng n\u00e0y \u0111\u1ec3 tham gia ch\u01b0\u01a1ng tr\u00ecnh REDD. Qua k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y carbon \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef ch\u1ee7 y\u1ebfu trong th\u00e2n c\u00e2y L\u1ed3 \u00f4 kh\u00ed sinh v\u00e0 ch\u00fang c\u00f3 quan h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi nh\u00e2n t\u1ed1 tu\u1ed5i c\u1ee7a c\u00e2y. Ngo\u00e0i ra, ch\u00fang c\u00f2n c\u00f3 m\u1ed1i quan h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng sinh kh\u1ed1i kh\u00f4 c\u1ee7a th\u1ea3m m\u1ee5c, c\u00e2y ch\u1ebft. L\u01b0\u1ee3ng CO2 h\u1ea5p th\u1ee5 trong l\u00e2m ph\u1ea7n L\u1ed3 \u00f4 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c nh\u00e2n t\u1ed1 nh\u01b0 m\u1eadt \u0111\u1ed9 c\u00e2y\/ha v\u00e0 \u0111\u01b0\u1eddng k\u00ednh b\u00ecnh qu\u00e2n. \u1ede c\u1ea5p \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh 3cm v\u00e0 m\u1eadt \u0111\u1ed9 3500 c\u00e2y\/ha s\u1ebd h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c 601 t\u1ea5n CO2\/ha. V\u00e0 \u1edf c\u1ea5p \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh 9cm v\u00e0 m\u1eadt \u0111\u1ed9 16500 c\u00e2y\/ha s\u1ebd h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c 1880 t\u1ea5n CO2\/ha.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>Carbon, CO2, REDD, r\u1eebng L\u1ed3 \u00f4<\/p>\n

Determination carbon storage of Bamboo forest (Bambusa procure <\/i>A.chev et A.cam) in Central Highlands <\/b><\/p>\n

Bamboo forests bring people various values include economic, cultural and environmental value. But the awareness of managers as well as the community that it has little value and cleared to convert land use purpose and overexploitation. Especially, in the current period when development population issue, change the crop structure, demand of land using with agricultural production purpose have trend to increases so deforestation bamboo to convert purposes such as plant rubber tree, coffee or other agricultural crops made bamboo area has decrease. In general, forest destruction also bamboo forest not only cause ecological imbalance but also reduces absorb CO2 ability and indirectly increase CO2 emissions into the atmosphere make speed up global climate change. One way of sustainable forest management to economic development, cultural as parallel with environmental protection issues that is calculated absorb CO2 value of bamboo forest to participate REDD program. The result of research shows that carbon is stored mainly in bamboo trunk and it has closely relationship with age factor of the tree, volume dry biomass of litter and dead wood. Amount of CO2 absorbed in bamboo forest depend on factors such as density trees\/ha and average diameter. With average diameter 3cm and density 3500 trees\/ha would absorbed 601 ton CO2\/ha. And average diameter 9cm and density 16500 trees\/ha would absorbed 1880 ton CO2\/ha.<\/p>\n

Keywords: <\/i><\/b>Bamboo forest, carbon, CO2, REDD<\/p>\n

 <\/p>\n

USING LANDSAT 8 TO ESTIMATE ABOVEGROUND BIOMASS AND CARBON STOCKS IN XUAN THUY NATIONAL PARK, NAM DINH PROVINCE<\/b><\/p>\n

Hai Hoa Nguyen1, Dinh Quang Tuan2, Duong Trung Hieu3<\/b><\/p>\n

\u00a0<\/b>1Environmental Engineering Dept, Vietnam National University of Forestry <\/i><\/p>\n

2Vietnam National University of Forestry <\/i><\/p>\n

3 North East College of Agriculture and Forestry<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mangroves is considered as one of the most important carbon sinks in the tropic and their roles are wellknown as preventing coastal shoreline erosion and mitigating impacts of storms and wave actions. The productivity of mangroves could be evaluated by estimating their biomass and carbon stocks. Nowadays, a various number of methods are used to estimate mangrove biomass and carbon stocks and one of them is commonly used as the remotely-sensed satellite data approach. In this study, Landsat 8 is used to identify the spatial distribution of mangroves using NDVI values, then to calculate total of aboveground biomass and carbon stocks of mangroves in the Xuan Thuy National Park. As a result, the average of mangrove diameter and height values are measured at 2.80 \u00b1 0.23cm and 3.82 \u00b1 0.52m, respectively. The NDVI values are used for mangrove classification with the accuracy of 88.3%. In general, the biomass of mangrove forests in Xuan Thuy National Park is relatively high, calculated at 62,692.8 \u00b1 192.16 tons and carbon stocks are calculated as 29,465.6 \u00b1 90.32 tons.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>Aboveground biomass (AGB), carbon stocks, Landsat 8, Xuan Thuy National ParkS\u1eed d\u1ee5ng \u1ea3nh Landsat 8 \u0111\u1ec3 \u01b0\u1edbc t\u00ednh sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon b\u1ec1 m\u1eb7t r\u1eebng ng\u1eadp m\u1eb7n t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia Xu\u00e2n Th\u1ee7y, t\u1ec9nh Nam \u0110\u1ecbnh <\/b><\/p>\n

H\u1ec7 sinh th\u00e1i r\u1eebng ng\u1eadp m\u1eb7n \u0111\u01b0\u1ee3c coi nh\u01b0 b\u1ec3 ch\u1ee9a c\u00e1c bon quan tr\u1ecdng nh\u1ea5t trong v\u00f9ng nhi\u1ec7t \u0111\u1edbi. N\u0103ng su\u1ea5t c\u1ee7a c\u00e1c h\u1ec7 sinh th\u00e1i r\u1eebng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u00e1ch \u01b0\u1edbc l\u01b0\u1ee3ng sinh kh\u1ed1i c\u1ee7a n\u00f3. Vi\u1ec7c \u0111\u00e1nh gi\u00e1 sinh kh\u1ed1i r\u1eebng ng\u1eadp m\u1eb7n gi\u00fap ch\u00fang ta hi\u1ec3u c\u00e1c qu\u00e1 tr\u00ecnh v\u00e0 nh\u1eefng thay \u0111\u1ed5i trong h\u1ec7 th\u1ed1ng r\u1eebng ng\u1eadp m\u1eb7n. Ng\u00e0y nay c\u00f3 r\u1ea5t nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 \u01b0\u1edbc t\u00ednh sinh kh\u1ed1i tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 tr\u1eef l\u01b0\u1ee3ng c\u00e1c bon c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n, m\u1ed9t trong c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng \u0111\u00f3 l\u00e0 d\u00f9ng t\u01b0 li\u1ec7u vi\u1ec5n th\u00e1m. Nghi\u00ean c\u1ee9u d\u1ef1a v\u00e0o vi\u1ec7c s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb NDVI \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n, t\u00ednh to\u00e1n t\u1ed5ng sinh kh\u1ed1i tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 tr\u1eef l\u01b0\u1ee3ng c\u00e1cbon c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia Xu\u00e2n Th\u1ee7y. K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra v\u00e0 t\u00ednh to\u00e1n cho th\u1ea5y gi\u00e1 tr\u1ecb \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n l\u00e0 2,80 \u00b1 0,23cm v\u00e0 chi\u1ec1u cao trung b\u00ecnh l\u00e0 3,82 \u00b1 0,52m. Ch\u1ec9 s\u1ed1 NDVI \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 ph\u00e2n b\u1ed1 r\u1eebng ng\u1eadp m\u1eb7n v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 88,3%. Nh\u00ecn chung, sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng c\u00e1cbon b\u1ec1 m\u1eb7t \u0111\u1ea5t t\u1ea1i v\u01b0\u1eddn qu\u1ed1c gia Xu\u00e2n Th\u1ee7y \u1edf m\u1ee9c t\u01b0\u01a1ng \u0111\u1ed1i cao. Gi\u00e1 tr\u1ecb sinh kh\u1ed1i b\u1ec1 m\u1eb7t \u0111\u1ea5t c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n l\u00e0 62.692,8 \u00b1 192,16 t\u1ea5n v\u00e0 tr\u1eef l\u01b0\u1ee3ng c\u00e1cbon l\u00e0 29.465,6 \u00b1 90,32 t\u1ea5n. K\u1ebft qu\u1ea3 cho th\u1ea5y tr\u1eef l\u01b0\u1ee3ng c\u00e1cbon v\u00e0 sinh kh\u1ed1i b\u1ec1 m\u1eb7t t\u1ea1i \u0111\u00e2y l\u00e0 t\u01b0\u01a1ng \u0111\u1ed1i cao. Qua \u0111\u00f3, c\u1ea7n c\u00f3 c\u00e1c ch\u00ednh s\u00e1ch b\u1ea3o t\u1ed3n c\u00e1cbon v\u00e0 qu\u1ea3n l\u00fd r\u1eebng ng\u1eadp m\u1eb7n hi\u1ec7u qu\u1ea3 h\u01a1n theo c\u01a1 ch\u1ebf REDD+.<\/p>\n

Keywords: <\/i><\/b>Sinh kh\u1ed1i b\u1ec1 m\u1eb7t, tr\u1eef l\u01b0\u1ee3ng c\u00e1cbon, \u1ea3nh Landsat 8, VQG Xu\u00e2n Th\u1ee7y<\/p>\n

 <\/p>\n

\u0110I\u1ec0U TRA QU\u1ea6N TH\u1ec2 V\u01af\u1ee2N \u0110EN M\u00c1 HUNG TRUNG B\u1ed8 (Nomascus annamensis<\/i>) V\u00c0 HI\u1ec6N TR\u1ea0NG B\u1ea2O T\u1ed2N T\u1ea0I V\u01af\u1edcN QU\u1ed0C GIA KON KA KINH, T\u1ec8NH GIA LAI<\/b><\/p>\n

Nguy\u1ec5n \u00c1i T\u00e2m1, H\u00e0 Th\u0103ng Long1, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn1, L\u00e2m V\u0103n T\u1ecbnh2, Nguy\u1ec5n Ho\u00e0ng L\u00e2m2, B\u00f9i V\u0103n Tu\u1ea5n3, Tr\u1ea7n Ng\u1ecdc To\u00e0n3 <\/b><\/p>\n

1H\u1ed9i \u0111\u1ed9ng v\u1eadt h\u1ecdc Frankfurt t\u1ea1i Vi\u1ec7t Nam,<\/i><\/p>\n

\u00a02V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh, <\/i><\/p>\n

3Trung t\u00e2m GreenViet.<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nghi\u00ean c\u1ee9u nh\u1eb1m m\u1ee5c \u0111\u00edch \u0111i\u1ec1u tra hi\u1ec7n tr\u1ea1ng qu\u1ea7n th\u1ec3 V\u01b0\u1ee3n \u0111en m\u00e1 hung trung b\u1ed9 (Nomascus annamensis<\/i>) t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh v\u00e0 \u0111\u1ec1 xu\u1ea5t gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n qu\u1ea7n th\u1ec3 n\u00e0y. D\u1eef li\u1ec7u thu th\u1eadp trong th\u1eddi gian t\u1eeb 16\/11\/2016 – 31\/12\/ 2016, t\u1ea1i 21 \u0111i\u1ec3m kh\u1ea3o s\u00e1t, s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ph\u1ecfng v\u1ea5n c\u1ed9ng \u0111\u1ed3ng, kh\u1ea3o s\u00e1t theo \u0111i\u1ec3m v\u00e0 thu \u00e2m ti\u1ebfng h\u00f3t c\u1ee7a v\u01b0\u1ee3n. K\u1ebft qu\u1ea3 \u0111\u00e3 thu \u00e2m \u0111\u01b0\u1ee3c ti\u1ebfng h\u00f3t c\u1ee7a 11 \u0111\u00e0n v\u01b0\u1ee3n t\u1ea1i 10 \u0111i\u1ec3m nghe. M\u1eadt \u0111\u1ed9 v\u01b0\u1ee3n t\u1ea1i V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh trong \u0111\u1ee3t kh\u1ea3o s\u00e1t n\u00e0y \u01b0\u1edbc t\u00ednh 0.112 (\u0111\u00e0n\/km2). C\u00e1c khu v\u1ef1c ghi nh\u1eadn s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a v\u01b0\u1ee3n t\u1ea1i ti\u1ec3u khu 18, 68, 74, 79, 91, 92, 95, 104, 105, 110, 414, 433… V\u01b0\u1ee3n \u0111en m\u00e1 hung Kon Ka Kinh \u0111ang \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed1i nguy h\u1ea1i t\u1eeb vi\u1ec7c m\u1ea5t m\u00f4i tr\u01b0\u1eddng s\u1ed1ng v\u00e0 n\u1ea1n s\u0103n b\u1eafn tr\u00e1i ph\u00e9p. C\u1ea7n b\u1ea3o v\u1ec7 nghi\u00eam ng\u1eb7t sinh c\u1ea3nh s\u1ed1ng c\u1ee7a V\u01b0\u1ee3n trong v\u00e0 khu v\u1ef1c gi\u00e1p ranh VQG, ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng s\u1edf h\u1eefu s\u00fang tr\u00e1i ph\u00e9p t\u1ea1i khu v\u1ef1c v\u00f9ng \u0111\u1ec7m. V\u1edbi ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1m s\u00e1t V\u01b0\u1ee3n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u t\u1ea1i c\u00e1c \u0111i\u1ec3m nghe trong nghi\u00ean c\u1ee9u l\u00e0m c\u01a1 s\u1edf d\u1eef li\u1ec7u cho ho\u1ea1t \u0111\u1ed9ng gi\u00e1m s\u00e1t c\u1ee7a ki\u1ec3m l\u00e2m V\u01b0\u1eddn qu\u1ed1c gia.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>M\u1eadt \u0111\u1ed9 qu\u1ea7n th\u1ec3 v\u01b0\u1ee3n, ph\u00e2n b\u1ed1 v\u01b0\u1ee3n, V\u01b0\u1ee3n \u0111en m\u00e1 hung trung b\u1ed9 (Nomascus annamensis<\/i>), V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh<\/p>\n

Survey of the Northern buff-cheeked crested gibbon (Nomascus annamensis<\/i>) and gibbon conservation status in Kon Ka Kinh National park <\/b><\/p>\n

This study aims to investigate the status of Nomascus annamensis <\/i>in Kon Ka Kinh National Park and propose a solution to conserve this population. Data collected from November 16, 2016 to December 31, 2016 at 21 survey sites, using community interviewing, auditory sampling methods, point-based surveys, and gibbon song recordings. The results recorded the song of 11 gibbons group at 10 listening spots. The gibbon density was estimated at 0.11 groups per km2. Gibbon distribution was recorded in Forest Unit Area such as 18, 68, 74, 79, 91, 92, 95, 104, 105, 110, 414, 433…the main threats to Northern buffed-cheeked are habitat loss and poaching.The habitat for gibbon inside the National Park as well the adjacent areas should be strictly protected. Controlling guns owned illegally by local people in the buffer zone. The data in listening post of this research can be used as a database for Gibbon monitoring activity of the rangers in Kon Ka Kinh National Park<\/p>\n

Keywords: <\/i><\/b>Gibbon population density, gibbons distribution, Kon Ka Kinh National Park, Northern yellow-cheeked gibbon (Nomascus annamensis)<\/i>.<\/p>\n

 <\/p>\n

D\u1eaaN LI\u1ec6U \u0110A D\u1ea0NG TH\u00c0NH PH\u1ea6N LO\u00c0I \u0110\u1ed8NG V\u1eacT C\u00d3 X\u01af\u01a0NG S\u1ed0NG (TH\u00da, L\u01af\u1ee0NG C\u01af, B\u00d2 S\u00c1T) T\u1ea0I H\u00c0NH LANG K\u1ebeT N\u1ed0I V\u01af\u1edcN QU\u1ed0C GIA KON KA KINH V\u00c0 KHU B\u1ea2O T\u1ed2N THI\u00caN NHI\u00caN KON CH\u01af R\u0102NG, T\u1ec8NH GIA LAI<\/b><\/p>\n

Nguy\u1ec5n \u00c1i T\u00e2m1, Tr\u1ea7n H\u1eefu V\u1ef92, Nguy\u1ec5n Th\u00e0nh Lu\u00e2n3, B\u00f9i V\u0103n Tu\u1ea5n2, Ho\u00e0ng Qu\u1ed1c Huy2, Nguy\u1ec5n Th\u1ecb Kim Y\u1ebfn1, H\u00e0 Th\u0103ng Long1<\/b><\/p>\n

\u00a0<\/b>1H\u1ed9i \u0111\u1ed9ng v\u1eadt h\u1ecdc Frankfurt t\u1ea1i Vi\u1ec7t Nam; <\/i><\/p>\n

2Trung t\u00e2m \u0111a d\u1ea1ng sinh h\u1ecdc N\u01b0\u1edbc Vi\u1ec7t anh;<\/i><\/p>\n

\u00a03Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc S\u01b0 ph\u1ea1m \u0110\u00e0 N\u1eb5ng<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nghi\u00ean c\u1ee9u d\u1eabn li\u1ec7u \u0111a d\u1ea1ng th\u00e0nh ph\u1ea7n lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u00f3 x\u01b0\u01a1ng s\u1ed1ng bao g\u1ed3m Th\u00fa, L\u01b0\u1ee1ng c\u01b0 v\u00e0 B\u00f2 s\u00e1t \u0111\u01b0\u1ee3c tri\u1ec3n khai t\u1ea1i l\u00e2m ph\u1eadn r\u1eebng c\u1ee7a C\u00f4ng ty tr\u00e1ch nhi\u1ec7m h\u1eefu h\u1ea1n m\u1ed9t th\u00e0nh vi\u00ean L\u00e2m nghi\u1ec7p \u0110\u0103k Roong v\u00e0 C\u00f4ng ty tr\u00e1ch nhi\u1ec7m h\u1eefu h\u1ea1n m\u1ed9t th\u00e0nh vi\u00ean L\u00e2m nghi\u1ec7p Tr\u1ea1m L\u1eadp thu\u1ed9c x\u00e3 \u0110\u0103k Roong v\u00e0 x\u00e3 S\u01a1n Lang, n\u1eb1m trong khu v\u1ef1c h\u00e0nh lang k\u1ebft n\u1ed1i V\u01b0\u1eddn qu\u1ed1c gia Kon Ka Kinh v\u00e0 Khu b\u1ea3o t\u1ed3n Thi\u00ean nhi\u00ean Kon Ch\u01b0 R\u0103ng, huy\u1ec7n Kbang, t\u1ec9nh Gia Lai. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ch\u01b0\u01a1ng tr\u00ecnh kh\u1ea3o s\u00e1t g\u1ed3m: ph\u1ecfng v\u1ea5n ng\u01b0\u1eddi d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng, kh\u1ea3o s\u00e1t tuy\u1ebfn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n c\u1ea3 ng\u00e0y l\u1eabn \u0111\u00eam, kh\u1ea3o s\u00e1t \u0111i\u1ec3m, \u0111\u1ecbnh danh th\u00e0nh ph\u1ea7n lo\u00e0i v\u00e0 x\u1eed l\u00fd s\u1ed1 li\u1ec7u. B\u00ean c\u1ea1nh ho\u1ea1t \u0111\u1ed9ng kh\u1ea3o s\u00e1t th\u1ef1c \u0111\u1ecba, ph\u1ecfng v\u1ea5n ng\u01b0\u1eddi d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng nh\u00f3m kh\u1ea3o s\u00e1t c\u00f2n \u0111i\u1ec1u tra nu\u00f4i nh\u1ed1t, bu\u00f4n b\u00e1n \u0111\u1ed9ng v\u1eadt hoang d\u00e3 nh\u1eb1m m\u1ee5c ti\u00eau ch\u1ee5p h\u00ecnh c\u00e1c m\u1eabu v\u1eadt v\u00e0 nh\u1eadn d\u1ea1ng c\u00e1c lo\u00e0i th\u00fa th\u01b0\u1eddng b\u1ecb s\u0103n b\u1eaft tr\u00e1i ph\u00e9p. K\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t t\u1eeb ng\u00e0y 22\/5\/2016 \u0111\u1ebfn ng\u00e0y 4\/8\/2016, trong t\u1ed5ng s\u1ed1 20 tuy\u1ebfn kh\u1ea3o s\u00e1t v\u1edbi t\u1ed5ng chi\u1ec1u d\u00e0i 153,8km, \u0111o\u00e0n kh\u1ea3o s\u00e1t \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 82 lo\u00e0i Th\u00fa, L\u01b0\u1ee1ng c\u01b0 v\u00e0 B\u00f2 s\u00e1t thu\u1ed9c 25 h\u1ecd, 7 b\u1ed9. Trong \u0111\u00f3, l\u1edbp Th\u00fa (Mammalia<\/i>) c\u00f3 14 lo\u00e0i, 8 h\u1ecd, 3 b\u1ed9; l\u1edbp L\u01b0\u1ee1ng c\u01b0 (Amphibian<\/i>) c\u00f3 38 lo\u00e0i, 7 h\u1ecd, 2 b\u1ed9; l\u1edbp B\u00f2 s\u00e1t (Reptilia<\/i>) c\u00f3 30 lo\u00e0i, 10 h\u1ecd, 2 b\u1ed9. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u b\u1ed5 sung th\u00eam danh l\u1ee5c c\u00e1c lo\u00e0i th\u00fa, nh\u1ea5t l\u00e0 danh l\u1ee5c L\u01b0\u1ee1ng c\u01b0, B\u00f2 s\u00e1t cho khu v\u1ef1c v\u00e0 cung c\u1ea5p d\u1eabn li\u1ec7u quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng k\u1ebf ho\u1ea1ch b\u1ea3o t\u1ed3n t\u1ea1i khu v\u1ef1c tr\u1ecdng \u0111i\u1ec3m v\u1ec1 \u0111a d\u1ea1ng sinh h\u1ecdc B\u1eafc T\u00e2y Nguy\u00ean.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>H\u00e0nh lang \u0111a d\u1ea1ng sinh h\u1ecdc, Kon Ka Kinh, Kon Ch\u01b0 R\u0103ng, Tr\u1ea1m L\u1eadp, \u0110\u0103k Roong, \u0111\u1ed9ng v\u1eadt c\u00f3 x\u01b0\u01a1ng s\u1ed1ng<\/p>\n

Preliminary results of species diversy of vertebare (mammal, amphibian, and reptile) at green connection area between Kon Ka Kinh National Park and Kon Chu Rang Nature reserve, Gia Lai province <\/b><\/p>\n

The survey of fauna (mammals, amphibians, and reptiles) was conducted from May 22nd to August 4th 2016 at the intervening forest area (or the forest corridor) which located between Kon Ka Kinh National Park (KKK) and Kon Chu Rang Nature Reserve (KCR) and currently remains under the management of Dak Roong and Tram Lap State Forest Enterprise (SFEs), Kbang District, Gia Lai Province. Survey team included 5 biological investigators and 4 local guiders. The main methodologies was used in the survey includes interview, line-transect and point-transect survey, species identification, and analyzes. 20 line transects of 153.8km were surveyed during daytime and nighttime and the preliminary results recorded totally 82 species (mammals, amphibians, and reptiles) of 25 families, 7 orders. In which there were 14 species of mammals belonging to 8 families, 3 orders; 30 species of amphibians belonging to 7 families, 2 orders; and 30 species of reptiles belonging to 10 families and 2 orders. The survey results especially added more new species in comprising with previous report which is a valuable data in making long-term conservation plan of the key protection area in the Northern highland. Beside field work, interviewing the local peoples living in this area also were conducted due to collect information of mammals, specimens, loggings, wildlife trades as well as hunting activities.<\/p>\n

Keywords: <\/i><\/b>Kon Ka Kinh National Park, Kon Chu Rang Nature Reserve, the biodiversity corridor, Tram Lap, Dak Roong, mammal, amphibian, and reptile.<\/p>\n

 <\/p>\n

B\u01af\u1edaC \u0110\u1ea6U X\u00c1C \u0110\u1ecaNH TH\u00c0NH PH\u1ea6N C\u00d4N TR\u00d9NG T\u1ea0I KHU B\u1ea2O T\u1ed2N THI\u00caN NHI\u00caN TH\u01af\u1ee2NG TI\u1ebeN, H\u00d2A B\u00ccNH<\/b><\/p>\n

L\u00ea B\u1ea3o Thanh <\/b><\/p>\n

\u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p thu th\u1eadp m\u1eabu v\u00e0 x\u1eed l\u00fd m\u1eabu tr\u00ean c\u00e1c \u0111i\u1ec3m \u0111i\u1ec1u tra \u0111\u1ea1i di\u1ec7n cho c\u00e1c sinh c\u1ea3nh t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u, \u0111\u00e3 ghi nh\u1eadn \u0111\u01b0\u1ee3c 166 lo\u00e0i thu\u1ed9c 33 h\u1ecd, 11 b\u1ed9 c\u00f4n tr\u00f9ng, trong \u0111\u00f3 b\u1ed9 c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i nhi\u1ec1u nh\u1ea5t l\u00e0 b\u1ed9 C\u00e1nh c\u1ee9ng (Coleoptera) v\u1edbi 56 lo\u00e0i thu\u1ed9c 7 h\u1ecd chi\u1ebfm 33,73% t\u1ed5ng s\u1ed1 lo\u00e0i c\u00f4n tr\u00f9ng t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u, ti\u1ebfp theo l\u00e0 b\u1ed9 C\u00e1nh v\u1ea9y (Lepidoptera) v\u1edbi 46 lo\u00e0i, 5 h\u1ecd chi\u1ebfm 27,71%, b\u1ed9 c\u00f3 s\u1ed1 l\u01b0\u1ee3ng lo\u00e0i \u00edt nh\u1ea5t l\u00e0 b\u1ed9 C\u00e1nh d\u00e0i ch\u1ec9 c\u00f3 1 lo\u00e0i chi\u1ebfm 0,60%. Sinh c\u1ea3nh r\u1eebng t\u00e1i sinh, tre n\u1ee9a, ao h\u1ed3 c\u00f3 ch\u1ec9 s\u1ed1 phong ph\u00fa l\u1edbn nh\u1ea5t (d = 21,17), ti\u1ebfp \u0111\u1ebfn l\u00e0 Sinh c\u1ea3nh c\u00e2y g\u1ed7, r\u1eebng k\u00edn th\u01b0\u1eddng xanh (d = 20,13). Sinh c\u1ea3nh r\u1eebng t\u00e1i sinh c\u00f3 ch\u1ec9 s\u1ed1 phong ph\u00fa (d = 19,08); Sinh c\u1ea3nh d\u00e2n c\u01b0, c\u00e2y n\u00f4ng nghi\u1ec7p c\u00f3 ch\u1ec9 s\u1ed1 phong ph\u00fa th\u1ea5p nh\u1ea5t (d = 17,00). Nh\u00f3m c\u00f4n tr\u00f9ng c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i th\u1ef1c v\u1eadt th\u00ec \u0111a s\u1ed1 l\u00e0 lo\u00e0i h\u1ea1i l\u00e1 chi\u1ebfm 53,01%, th\u1ea5p nh\u1ea5t l\u00e0 lo\u00e0i h\u1ea1i hoa qu\u1ea3 chi\u1ebfm 0,60%. C\u00f3 kh\u00e1 nhi\u1ec1u lo\u00e0i c\u00f3 th\u1ec3 th\u1ee5 ph\u1ea5n cho c\u00e2y tr\u1ed3ng (28,92%) v\u00e0 c\u00f3 nhi\u1ec1u lo\u00e0i l\u00e0 c\u00f4n tr\u00f9ng thi\u00ean \u0111\u1ecbch (8,43%).<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean, th\u00e0nh ph\u1ea7n c\u00f4n tr\u00f9ng, Th\u01b0\u1ee3ng Ti\u1ebfn, vai tr\u00f2 c\u00f4n tr\u00f9ng<\/p>\n

Initial data on the composition of insects in Thuong Tien Nature reserve, Hoa Binh province <\/b><\/p>\n

In the study, the authors collected specimens by lines and points in Thuong Tien Nature reserve. Consequently, the researcher has initially identified 136 species of 04 families, 11 sets of insects. Of the 11 sets of insect, according to the research results, Coleoptera has 56 species each of 7 families accounting for 33.73% the total number of species. Lepidoptera has 46 species each of 5 families accounting for 27.71%. The rest ones have 01 species each making 0.60%. Results presented in Bamboo forest habitats have the highest values of the species Margalef index (d) of 21.17 respectively. High trees habitat is in the second range, the secondary habitat is in the third range, and the residential and agricultural plants habitat is in the fourth range. Most of the insects damage to plants then primary by eating their leaves accounting for 53.01% and species damage fruits have the lower accounting for 0.60%. Many species can pollinate our crops accounting for 28.92% and many species are natural predator.<\/p>\n

Keywords: <\/i><\/b>Composition of insects, nature reserve, role of the insects, Thuong Tien<\/p>\n

 <\/p>\n

\u0110\u1eb6C \u0110I\u1ec2M PH\u00c5N B\u1ed0, KI\u1ec2U TH\u1ea2M TH\u1ef0C V\u1eacT C\u1ee6A C\u00c5Y \u0110\u1ea2NG S\u00c5M (Codonopsis javanica <\/i>(Blume) Hook. f. & Thomson.) \u1ede L\u00c5M \u0110\u1ed2NG<\/b><\/p>\n

Nguy\u1ec5n Th\u00e0nh M\u1ebfn, Ho\u00e0ng Thanh Tr\u01b0\u1eddng <\/b><\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110\u1ea3ng s\u00e2m (Codonopsis javanica<\/i>) l\u00e0 d\u01b0\u1ee3c li\u1ec7u truy\u1ec1n th\u1ed1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb l\u00e2u \u0111\u1eddi \u1edf Vi\u1ec7t Nam v\u00e0 nhi\u1ec1u n\u01b0\u1edbc kh\u00e1c \u1edf khu v\u1ef1c \u0110\u00f4ng \u00c1. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh th\u00f4ng qua \u0111i\u1ec1u tra ph\u1ecfng v\u1ea5n, \u0111i\u1ec1u tra theo tuy\u1ebfn, l\u1eadp \u00f4 ti\u00eau chu\u1ea9n \u0111i\u1ec3n h\u00ecnh, x\u00e1c \u0111\u1ecbnh ki\u1ec3u th\u1ea3m th\u1ef1c v\u1eadt theo UNESCO (1973). K\u1ebft qu\u1ea3 cho th\u1ea5y: \u0110\u1ea3ng s\u00e2m c\u00f3 ph\u00e2n b\u1ed1 t\u1ea1i Tp. \u0110\u00e0 L\u1ea1t v\u00e0 c\u00e1c huy\u1ec7n \u0110\u1ee9c Tr\u1ecdng, \u0110\u01a1n D\u01b0\u01a1ng, L\u1ea1c D\u01b0\u01a1ng; ch\u1ee7 y\u1ebfu tr\u00ean \u0111\u1ea5t \u0111en v\u00e0 \u0111\u1ea5t x\u00e1m; \u0111\u1ea5t c\u00f3 t\u1ea7ng th\u1ea3m m\u1ee5c d\u00e0y trung b\u00ecnh 2,82\u00b1 0,12cm v\u00e0 t\u1ea7ng m\u00f9n d\u00e0y 12,93 \u00b1 1,13cm; pH: 5,8 – 6,4; c\u00e2y m\u1ecdc t\u1eadp trung \u1edf \u0111\u1ed9 cao 1.400 – 1.800m tr\u00ean m\u1ef1c n\u01b0\u1edbc bi\u1ec3n. C\u00e2y th\u01b0\u1eddng hi\u1ec7n di\u1ec7n trong 3 ki\u1ec3u th\u1ea3m th\u1ef1c v\u1eadt I.A.9.b: R\u1eebng c\u00e2y l\u00e1 kim th\u01b0\u1eddng xanh n\u00fai trung b\u00ecnh v\u00e0 n\u00fai cao<\/i>; ki\u1ec3u IV.A.1.b: R\u1eebng c\u00e2y b\u1ee5i th\u1ea5p v\u00e0 b\u1ee5i tr\u01b0\u1eddn tr\u00ean m\u1eb7t \u0111\u1ea5t <\/i>v\u00e0 ki\u1ec3u IV.C.1.3: Th\u1ea3m c\u1ecf v\u1edbi \u01b0u th\u1ebf Gu\u1ed9t (Pteridium aquilinum)<\/i>. M\u1eadt \u0111\u1ed9 trung b\u00ecnh c\u1ee7a \u0110\u1ea3ng s\u00e2m kho\u1ea3ng 341,0 c\u00e2y\/ha (I.A.9.b) v\u00e0 665,0 c\u00e2y\/ha (IV.A.1.b ; IV.C.1.3). Ch\u1ec9 s\u1ed1 gi\u00e1 tr\u1ecb quan tr\u1ecdng (IVI%) c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y g\u1ed7 trong khu v\u1ef1c ph\u00e2n b\u1ed1 \u0110\u1ea3ng s\u00e2m c\u0169ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh. Qua \u0111i\u1ec1u tra \u0111\u00e3 ghi nh\u1eadn \u0111\u01b0\u1ee3c 20 lo\u00e0i c\u00e2y g\u1ed7 thu\u1ed9c 15 h\u1ecd th\u1ef1c v\u1eadt v\u00e0 12 lo\u00e0i c\u00e2y b\u1ee5i, th\u1ea3m t\u01b0\u01a1i th\u01b0\u1eddng g\u1eb7p thu\u1ed9c 11 h\u1ecd th\u1ef1c v\u1eadt. C\u00e1c ghi nh\u1eadn v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m sinh th\u00e1i c\u1ee7a \u0110\u1ea3ng s\u00e2m cho th\u1ea5y c\u00f3 th\u1ec3 g\u00e2y tr\u1ed3ng v\u00e0 ph\u00e1t tri\u1ec3n lo\u00e0i n\u00e0y d\u01b0\u1edbi t\u00e1n r\u1eebng Th\u00f4ng ba l\u00e1 t\u1ea1i L\u00e2m \u0110\u1ed3ng.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>\u0110\u1ea3ng s\u00e2m, ph\u00e2n b\u1ed1, L\u00e2m \u0110\u1ed3ng, th\u1ea3m th\u1ef1c v\u1eadt<\/p>\n

Characteristic distribution and vegetation type of Codonopsis javanica <\/i>(Blume) Hook. f. & Thomson. in Lam Dong province, Vietnam <\/b><\/p>\n

Codonopsis javanica <\/i>is used as valuable traditional medicine in Vietnam and East-Asia\u2019areas. The study is conducted througth questionnaire, method of setting sample plots, classification of vegetation is defined according to UNESCO (1973). Results showed that Codonopsis javanica <\/i>distributed in Da Lat city and districts: Duc Trong, Don Duong and Lac Duong. This species is mainly grown in luvisols and acrisols; the mean deep of organic matter horizon is 2.82\u00b1 0.12cm and humic horizon (topsoil) is 12.93 \u00b1 1.13cm; pH: 5.8 – 6.4; trees have grown up at 1400 – 1800m altitude. Mainly vegetation includes three vegetation types: I.A.9.b: Tropical and subtropical montane and subalpine evergreen needle-leaved forest <\/i>(dominated by Pinus kesiya)<\/i>; IV.A.1.b: Evergreen creeping or matted dward-shrub thicket<\/i>; IV.C.1.3: Extremely xeromorphic dward-shrubland <\/i>(dominated by Pteridium aquilinum<\/i>). Average density of Codonopsis javanica <\/i>is 341.0 trees. ha-1(I.A.9.b) and 665.00 trees. ha-1 (I.A.9.b; IV.C.1.3). Importance value index (IVI%) of main wood species in plant communities of Codonopsis javanica<\/i>is calculated. The surveys is recorded 20 mainly wood species of 15 families and 12 common dwarf-shrubs, grass of 11 families. Ecological characteristic of Codonopsis javanica <\/i>shows that it can cultivate and develop under Pinus kesiya <\/i>canopy in Lam Dong province.<\/p>\n

Keywords: <\/i><\/b>Codonopsis javanica<\/i>, distribution, Lam Dong, vegetation<\/p>\n

 <\/p>\n

TH\u1ef0C TR\u1ea0NG C\u01a0 CH\u1ebe KHUY\u1ebeN KH\u00cdCH \u0110\u1ed0I V\u1edaI C\u00c1N B\u1ed8 TRONG H\u1ec6 TH\u1ed0NG KHU B\u1ea2O T\u1ed2N \u1ede VI\u1ec6T NAM<\/b><\/p>\n

T\u1ea1 Th\u1ecb Th\u1eafm1, Tr\u1ea7n Th\u1ecb Kim Ng\u00e2n1<\/b><\/p>\n

\u00a0<\/b>1Tr\u01b0\u1eddng C\u00e1n b\u1ed9 Qu\u1ea3n l\u00fd N\u00f4ng nghi\u1ec7p v\u00e0 PTNT 1<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u00e0i vi\u1ebft n\u00e0y t\u00f3m t\u1eaft k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 th\u1ef1c tr\u1ea1ng c\u01a1 ch\u1ebf khuy\u1ebfn kh\u00edch \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd khu b\u1ea3o t\u1ed3n \u1edf Vi\u1ec7t Nam, trong \u0111\u00f3 t\u1eadp trung v\u00e0o y\u1ebfu t\u1ed1 qu\u1ea3n l\u00fd ngu\u1ed3n nh\u00e2n l\u1ef1c, v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y l\u00e0 \u0111\u00e1nh gi\u00e1 kh\u00e1ch quan hi\u1ec7n tr\u1ea1ng c\u01a1 ch\u1ebf khuy\u1ebfn kh\u00edch hi\u1ec7n c\u00f3 v\u00e0 \u0111\u01b0a ra \u0111\u1ec1 xu\u1ea5t v\u1ec1 c\u00e1c bi\u1ec7n ph\u00e1p khuy\u1ebfn kh\u00edch, tr\u1ecdng t\u00e2m l\u00e0 ch\u1ebf \u0111\u1ed9 \u01b0u \u0111\u00e3i \u0111\u1ed1i v\u1edbi c\u00e1n b\u1ed9 c\u00f4ng ch\u1ee9c, vi\u00ean ch\u1ee9c thu\u1ed9c khu b\u1ea3o t\u1ed3n ph\u00f9 h\u1ee3p v\u1edbi th\u1ef1c ti\u1ec5n, \u0111\u00e1p \u1ee9ng k\u1ef3 v\u1ecdng qu\u1ea3n l\u00fd theo c\u01a1 s\u1edf ph\u00e1p l\u00fd hi\u1ec7n h\u00e0nh. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m c\u01a1 s\u1edf \u0111\u1ec1 xu\u1ea5t x\u00e2y d\u1ef1ng ch\u00ednh s\u00e1ch khuy\u1ebfn kh\u00edch c\u00e1n b\u1ed9 c\u00f4ng ch\u1ee9c, vi\u00ean ch\u1ee9c \u0111ang l\u00e0m vi\u1ec7c t\u1ea1i c\u00e1c khu b\u1ea3o t\u1ed3n \u1edf Vi\u1ec7t Nam.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>C\u00e1n b\u1ed9, c\u01a1 ch\u1ebf, khuy\u1ebfn kh\u00edch, khu b\u1ea3o t\u1ed3n<\/p>\n

 <\/p>\n

The status of the incentive mechanisms in the protected area management systems in Vietnam <\/b><\/p>\n

This is a report on evaluation of the current status of the incentives mechanisms in the protected areas management system in Vietnam. The evaluation focused on human resource governance and its objective was to evaluate the current status of the incentive mechanisms and then propose the incentive measurements for civil servants and government staff working at the protected areas. The proposed incentive measurements will have to meet expectations on human management and on the current legal basis. The results of this evaluation will be used for proposing incentives policy to encourange civil servants and government staff working in protected.<\/p>\n

Keywords: <\/i><\/b>Officers, mechanisms, encourages, protected areas<\/p>\n

C\u1ea4U T\u1ea0O GI\u1ea2I PH\u1eaaU C\u1ee6A G\u1ed6 XOAN NH\u1eea Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill<\/b><\/p>\n

L\u1ea1i Thanh H\u1ea3i1, \u0110\u1ed7 V\u0103n B\u1ea3n2<\/b><\/p>\n

\u00a0<\/b>1Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh <\/i><\/p>\n

2 Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng<\/i><\/p>\n\n\n\n
T\u00d3M T\u1eaeT <\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

G\u1ed7 Xoan nh\u1eeb Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill c\u00f3 d\u00e1c v\u00e0 l\u00f5i ph\u00e2n bi\u1ec7t v\u1ec1 m\u00e0u s\u1eafc, g\u1ed7 d\u00e1c c\u00f3 m\u00e0u tr\u1eafng ng\u00e0, g\u1ed7 l\u00f5i m\u00e0u be h\u1ed3ng. V\u00f2ng sinh tr\u01b0\u1edfng r\u00f5 r\u00e0ng do g\u1ed7 c\u00f3 m\u1ea1ch x\u1ebfp n\u1eeda v\u00f2ng. M\u1ea1ch \u0111\u01a1n, k\u00e9p ng\u1eafn 2 – 3 v\u00e0 c\u1ee5m m\u1ea1ch nh\u1ecf, ph\u00e2n t\u00e1n. Trong m\u1ea1ch th\u01b0\u1eddng c\u00f3 th\u1ec3 b\u00edt m\u00e0ng m\u1ecfng. Tia ch\u1ee7 y\u1ebfu 4 d\u00e3y t\u1ebf b\u00e0o, th\u01b0\u1eddng c\u00f3 tinh th\u1ec3 \u1edf hai \u0111\u1ea7u. C\u00f3 \u1ed1ng d\u1eabn nh\u1ef1a ngang n\u1eb1m trong tia g\u1ed7. M\u00f4 m\u1ec1m \u00edt, kh\u00f3 th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng. G\u1ed7 thu\u1ed9c lo\u1ea1i c\u1ee9ng v\u00e0 n\u1eb7ng trung b\u00ecnh. Chi\u1ec1u h\u01b0\u1edbng th\u1edb g\u1ed7 th\u1eb3ng. G\u1ed7 c\u00f3 kh\u1ea3 n\u0103ng d\u1ec5 gia c\u00f4ng, nh\u01b0ng g\u00e2y nhanh c\u00f9n d\u1ee5ng c\u1ee5 c\u1eaft g\u1ecdt v\u00e0 kh\u00f3 ng\u00e2m t\u1ea9m. G\u1ed7 c\u00f3 m\u00e0u \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 v\u00e2n \u0111\u1eb9p, ph\u00f9 h\u1ee3p cho \u0111\u1ed3 m\u1ed9c v\u00e0 l\u00e0m v\u1eadt li\u1ec7u trang s\u1ee9c.<\/p>\n

T\u1eeb kh\u00f3a: <\/i><\/b>G\u1ed7 Xoan nh\u1eeb, Choerospondias axillaris<\/i>, c\u1ea5u t\u1ea1o th\u00f4 \u0111\u1ea1i, c\u1ea5u t\u1ea1o hi\u1ec3n vi<\/p>\n

Wood anatomical structure of Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill <\/b><\/p>\n

The colour of heartwood and sapwood of Choerospondias axillaris <\/i>(Roxb.) Burtt & Hill species is distinct, sapwood is milk white and heartwood is reddish yellow. Growth ring boundaries distinct with wood semi-ring-porous. Vessels are solitary, short mutiples of 2 – 3, and in small cluster and diffuse. Tyloses sclerotic is common in vessels of earlywood. Rays are mostly 4 – seriate with cristals in both ends common. Radial resin canals present in the rays. Axial parenchyma is few and not easy to observe by nacked eyes. Wood is medium in density and hardness. Grain is straight. Wood may be easy to process, but it quickly blunts cutting tools and is difficult to impregnate. Wood is suitable for furniture and veneer for surface covering due to its attractive grain pattern and uniform colour.<\/p>\n

Keywords: <\/i><\/b>Xoan nhu timber, Choerospondias axillaris<\/i>, macroscopically anatomy, microscopically anatomy<\/p>\n

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

    T\u1ea0P CH\u00cd KHOA H\u1eccC L\u00c2M NGHI\u1ec6P S\u1ed0 1 – 2017   1 Ph\u00e2n t\u00edch \u0111a d\u1ea1ng di truy\u1ec1n m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n l\u00e0m c\u01a1 s\u1edf cho vi\u1ec7c lai t\u1ea1o gi\u1ed1ng m\u1edbi Nguy\u1ec5n Vi\u1ec7t T\u00f9ng, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Th\u1ecb Linh \u0110am Analysis of genetic diversity in eucalyptus as basis for breeding program […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","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\/1555"}],"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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=1555"}],"version-history":[{"count":5,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1555\/revisions"}],"predecessor-version":[{"id":1691,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1555\/revisions\/1691"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=1555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=1555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=1555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}