{"id":46,"date":"2024-04-30T00:08:19","date_gmt":"2024-04-29T17:08:19","guid":{"rendered":"http:\/\/envafs.dungnq.local\/2005\/06\/30\/results-of-casuarina-equisetifolia-planting-in-the-coastal-sandy-soil-areas-in-vietnam\/"},"modified":"2024-05-17T10:45:24","modified_gmt":"2024-05-17T03:45:24","slug":"vietnam-journal-of-forest-science-number-1-2024","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2024\/04\/vietnam-journal-of-forest-science-number-1-2024\/","title":{"rendered":"Vietnam Journal of Forest Science Number 1-2024"},"content":{"rendered":"

<\/p>\n

Vietnam Journal of Forest Science Number 1-2024<\/h1>\n

\u00a0<\/strong><\/p>\n\n\n\n\n\n\n\n\n
1.<\/td>\nNew species, Impatiens<\/em> lobulifera <\/em>(Balsaminaceae) in the flora of Vietnam<\/td>\nB\u1ed5 sung lo\u00e0i Impatiens lobulifera <\/em>(h\u1ecd Balsaminaceae) cho h\u1ec7 th\u1ef1c v\u1eadt Vi\u1ec7t Nam<\/td>\nQuan Ngoc Chu<\/p>\n

L.V. Averyanov Hai Dai Vo<\/p>\n

Dang Hai Nguyen Ha Van Dang Yen Thi Nguyen Ly Van Nguyen<\/p>\n

Cuong Huu Nguyen<\/td>\n

3<\/td>\n<\/tr>\n
2.<\/td>\nNghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i T\u00f4 h\u1ea1p \u0111i\u1ec7n bi\u00ean (Altingia<\/em> siamensis <\/em>Craib) t\u1ea1i 2 t\u1ec9nh S\u01a1n La v\u00e0<\/p>\n

\u0110i\u1ec7n Bi\u00ean<\/td>\n

Research selection dominant tree Altingia<\/em> siamensis <\/em>Craib in two provinces of Son La and Dien Bien<\/td>\nNguy\u1ec5n V\u0103n H\u00f9ng V\u00f5 \u0110\u1ea1i H\u1ea3i Nguy\u1ec5n H\u1ea3i H\u00f2a H\u00e0 V\u0103n Ti\u1ec7p<\/p>\n

L\u00ea Anh Thanh V\u0169 V\u0103n Tu\u00e2n<\/p>\n

Nguy\u1ec5n Duy Kh\u00e1nh Phan Th\u1ecb Thanh Huy\u1ec1n<\/td>\n

9<\/td>\n<\/tr>\n
3.<\/td>\nNghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i Qu\u1ebf t\u1ea1i t\u1ec9nh B\u1eafc K\u1ea1n<\/td>\nResearch on selection of selecting plus tree of Cinnamomum cassia \u00a0<\/em>in Bac Kan provinces<\/td>\nH\u00e0 V\u0103n N\u0103m Ph\u1ea1m Ng\u1ecdc Th\u00e0nh Nguy\u1ec5n Xu\u00e2n \u0110\u00e0i H\u00e0 \u0110\u00ecnh Long Tr\u01b0\u01a1ng Quang Tr\u00ed<\/td>\n19<\/td>\n<\/tr>\n
4.<\/td>\nPh\u00e2n t\u00edch s\u1ef1 thay \u0111\u1ed5i l\u1edbp ph\u1ee7 \u1edf huy\u1ec7n \u0110\u1eafk Glong – t\u1ec9nh \u0110\u1eafk N\u00f4ng giai \u0111o\u1ea1n 2011 -2023 d\u1ef1a v\u00e0o \u1ea3nh v\u1ec7 tinh \u0111a th\u1eddi gian<\/td>\nAnalysis of land cover<\/p>\n

changes in Dak Glong district – Dak Nong province period 2011 – 2023 based on<\/p>\n

multi-temporal satellite images<\/td>\n

Cao Th\u1ecb Ho\u00e0i<\/p>\n

Nguy\u1ec5n Th\u1ecb Thanh H\u01b0\u01a1ng<\/td>\n

33<\/td>\n<\/tr>\n
5.<\/td>\nX\u00e1c \u0111\u1ecbnh sinh kh\u1ed1i v\u00e0 kh\u1ea3 n\u0103ng t\u00edch l\u0169y carbon c\u1ee7a r\u1eebng tr\u1ed3ng thu\u1ea7n lo\u00e0i keo lai t\u1ea1i Khu D\u1ef1 tr\u1eef sinh quy\u1ec3n \u0110\u1ed3ng Nai<\/td>\nEstimates of biomass and carbon sequestration<\/p>\n

of acacia hybrid plantation<\/p>\n

in Dong Nai Biosphere Reserve<\/td>\n

Nguy\u1ec5n V\u0103n Tu\u1ea5n Nguy\u1ec5n V\u0103n Th\u1ecbnh Ph\u1ea1m Ti\u1ebfn D\u0169ng Nguy\u1ec5n Huy Ho\u00e0ng Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng<\/p>\n

Nguy\u1ec5n Th\u1ecb Thu Ph\u01b0\u01a1ng Tr\u1ea7n H\u1ed3ng V\u00e2n<\/td>\n

46<\/td>\n<\/tr>\n
6.<\/td>\n\u0110\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng th\u00edch h\u1ee3p v\u00e0 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n S\u00e2m lai ch\u00e2u (Panax vietnamensis <\/em>var. fuscidiscus<\/em>) t\u1ea1i huy\u1ec7n Tam \u0110\u01b0\u1eddng, t\u1ec9nh Lai Ch\u00e2u<\/td>\nAssessing adaptability and creatting potential map for growing lai chau Ginseng (Panax<\/em> vietnamensis <\/em>var. fuscidiscus<\/em>) in Tam Duong district, Lai Chau province<\/td>\nTr\u01b0\u01a1ng Tr\u1ecdng Kh\u00f4i Nguy\u1ec5n V\u0103n Tu\u1ea5n Tr\u1ecbnh Ng\u1ecdc Bon B\u00f9i Thanh T\u00e2n<\/p>\n

Nguy\u1ec5n Th\u1ecb Ho\u00e0i Anh Nguy\u1ec5n \u0110\u00ecnh Th\u01b0\u1ee3ng Ph\u1ea1m Danh Tuy\u00ean Ph\u1ea1m Quang Tuy\u1ebfn Tr\u01b0\u01a1ng T\u1ea5t \u0110\u01a1<\/td>\n

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

 <\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n
7.<\/td>\nNghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt tr\u1ed3ng Tr\u00e0m gi\u00f3 (Melaleuca<\/em> cajupti <\/em>Powell) in vitro <\/em>\u1edf v\u00f9ng \u0111\u1ed3i v\u00e0 v\u00f9ng c\u00e1t t\u1ea1i Th\u1eeba Thi\u00ean Hu\u1ebf<\/td>\nResearch on some technical measures of in vitro <\/em>cultivation of Melaleuca<\/em> cajupti <\/em>Powell<\/p>\n

in hills and sandal areas in Thua Thien Hue<\/td>\n

T\u00f4n Th\u1ea5t \u00c1i T\u00edn Ph\u1ea1m C\u01b0\u1eddng T\u1ed1ng Ph\u01b0\u1edbc B\u00ecnh<\/p>\n

Nguy\u1ec5n Cao Danh Phan Thi\u00ean Giang Ho\u00e0ng Huy Tu\u1ea5n<\/td>\n

65<\/td>\n<\/tr>\n
8.<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 t\u1ed5 h\u1ee3p ph\u00e2n b\u00f3n \u0111\u1ed1i v\u1edbi c\u00e2y B\u00f2 khai (Erythropalum scandens <\/em>Blume) \u1edf giai \u0111o\u1ea1n c\u00e2y non<\/td>\nEffects of fertilizer combinations for Erythropalum scandens <\/em>Blume in the young stage<\/td>\nNguy\u1ec5n Ch\u00ed Hi\u1ec3u<\/td>\n77<\/td>\n<\/tr>\n
9.<\/td>\nPh\u1ea3n \u1ee9ng c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y ng\u1eadp m\u1eb7n v\u1edbi y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng khu v\u1ef1c ven bi\u1ec3n C\u1ea7n Gi\u1edd, Th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh<\/td>\nResponsibilities of mangrove trees species to environmental change in the coastal area of Can Gio, Ho Chi Minh City<\/td>\nL\u00ea Thanh Quang Ho\u00e0ng V\u0103n Th\u01a1i Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t Nguy\u1ec5n Kh\u1eafc \u0110i\u1ec7u \u0110inh Duy Tu\u1ea5n<\/p>\n

\u0110inh Th\u1ecb Ph\u01b0\u01a1ng Vy Th\u00e1i Th\u00e0nh L\u01b0\u1ee3m Phan V\u0103n Trung Hu\u1ef3nh \u0110\u1ee9c Ho\u00e0n B\u00f9i Nguy\u1ec5n Th\u1ebf Ki\u1ec7t<\/td>\n

85<\/td>\n<\/tr>\n
10.<\/td>\nPh\u00e2n t\u00edch v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00e1c quy \u0111\u1ecbnh c\u1ee7a ph\u00e1p lu\u1eadt hi\u1ec7n h\u00e0nh v\u1ec1 ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 CO2\u00a0r\u1eebng<\/td>\nAnalysis and assessment<\/p>\n

of the current legal documents on forest environmental and CO2\u00a0indicators<\/td>\n

Nguy\u1ec5n Ho\u00e0ng Ti\u1ec7p V\u00f5 \u0110\u1ea1i H\u1ea3i<\/p>\n

\u0110\u1eb7ng Th\u1ecbnh Tri\u1ec1u<\/td>\n

95<\/td>\n<\/tr>\n
11.<\/td>\nS\u1ef1 ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t c\u1ee7a tuy\u1ebfn tr\u00f9ng Caenorhabditis brenneri <\/em>\u1edf V\u01b0\u1eddn Qu\u1ed1c gia C\u00e1t Ti\u00ean v\u00e0 C\u00fac Ph\u01b0\u01a1ng<\/td>\nNematode isolates of Caenorhabditis brenneri <\/em>yielded more in Cat Tien but less in Cuc Phuong National Parks<\/td>\nL\u00ea Th\u1ecd S\u01a1n<\/p>\n

B\u00f9i Th\u1ecb Mai H\u01b0\u01a1ng H\u00e0 B\u00edch H\u1ed3ng Nguy\u1ec5n Th\u1ecb Thu<\/td>\n

109<\/td>\n<\/tr>\n
12.<\/td>\n\u0110\u00e1nh gi\u00e1 hi\u1ec7u l\u1ef1c \u1ee9c ch\u1ebf c\u1ee7a ch\u1ee7ng vi khu\u1ea9n \u0111\u1ed1i kh\u00e1ng n\u1ea5m h\u1ea1i g\u1ed7<\/td>\nEvaluating the inhibitory efficacy of bacteria strains against wood pathogenic fungi<\/td>\nNguy\u1ec5n H\u1eefu Minh B\u00f9i Th\u1ecb Th\u1ee7y<\/p>\n

\u0110\u1ed7 Bi\u00ean C\u01b0\u01a1ng Qu\u00e1ch \u0110\u00ecnh Huy<\/td>\n

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

 <\/p>\n

 <\/p>\n

NEW SPECIES, Impatiens lobulifera <\/em>(Balsaminaceae) IN THE FLORA OF VIETNAM<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Quan Ngoc Chu1, L.V. Averyanov2, Hai Dai Vo3, Dang Hai Nguyen3, Ha Van Dang4, Yen Thi Nguyen4, Ly Van Nguyen4, Cuong Huu Nguyen4<\/h3>\n

1<\/em>Ba Vi National Park, Tan Linh, Ba Vi, Hanoi, Vietnam<\/em><\/p>\n

2 <\/em>Komarov Botanical Institute Russian Academy of Sciences Prof. Popov Str., 2, St.-Petersburg, 197376, Russia<\/em><\/p>\n

3 <\/em>Vietnamese Academy<\/em> of Forest Sciences<\/em><\/p>\n

4 <\/em>Vietnam National University of Forestry, Hanoi, Vietnam<\/em><\/p>\n

\u00a0<\/em><\/p>\n

ABSTRACT<\/strong><\/p>\n

Impatiens lobulifera <\/em>S. X. Yu, Y. L. Chen & H. N. Qin, previously known as an endemic of SE China, is found first in Vietnam, in Ba Be National Park (Bac Kan Province). The voucher herbarium specimens of this species collected in Vietnam are housed in the herbaria of the Vietnam National University of Forestry (VNF) and the Komarov Botanical Institute (LE). An amended morphological description of this species, accompanied by color photos, new data on ecology, and phenology are additionally provided.<\/p>\n

Keywords<\/em><\/strong>: Balsaminaceae, Impatiens<\/em>, Impatiens lobulifera<\/em>, new record, plant diversity, plant geography, Vietnam<\/p>\n

 <\/p>\n

B\u1ed4 SUNG LO\u00c0I Impatiens lobulifera <\/em>(H\u1ecc Balsaminaceae) CHO H\u1ec6 TH\u1ef0C V\u1eacT VI\u1ec6T NAM Chu Ng\u1ecdc Qu\u00e2n<\/strong>1<\/strong>,<\/strong> Averyanov V. Leonid<\/strong>2<\/strong>,<\/strong> V\u00f5 \u0110\u1ea1i H\u1ea3i<\/strong>3<\/strong>, Maisak V. Tatiana<\/strong>2<\/strong>,<\/strong><\/p>\n

Nguy\u1ec5n H\u1ea3i \u0110\u0103ng<\/strong>3<\/strong>, \u0110\u1eb7ng V\u0103n H\u00e0<\/strong>4<\/strong>, Nguy\u1ec5n Th\u1ecb Y\u1ebfn<\/strong>4<\/strong>,<\/strong> Nguy\u1ec5n V\u0103n L\u00fd<\/strong>4<\/strong>, Nguy\u1ec5n H\u1eefu C\u01b0\u1eddng<\/strong>4<\/strong><\/p>\n

1<\/em>V\u01b0\u1eddn<\/em> Qu\u1ed1c gia Ba V\u00ec<\/em><\/p>\n

2 <\/em>Vi\u1ec7n Th\u1ef1c v\u1eadt Komarov, Vi\u1ec7n H\u00e0n l\u00e2m Khoa h\u1ecdc Nga<\/em><\/p>\n

3 <\/em>Vi\u1ec7n<\/em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

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

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

Tr\u00ean th\u1ebf gi\u1edbi, chi B\u00f3ng n\u01b0\u1edbc (Impatiens <\/em>L.) thu\u1ed9c h\u1ecd B\u00f3ng n\u01b0\u1edbc (Balsaminaceae) g\u1ed3m kho\u1ea3ng 1.000 lo\u00e0i ph\u00e2n b\u1ed1 ch\u1ee7 y\u1ebfu \u1edf v\u00f9ng nhi\u1ec7t \u0111\u1edbi v\u00e0 c\u1eadn nhi\u1ec7t \u0111\u1edbi ch\u00e2u M\u1ef9, ch\u00e2u \u00c2u v\u00e0 \u0110\u00f4ng Nam \u00c1, c\u0169ng nh\u01b0 \u1edf \u0110\u00f4ng \u00c1. \u1ede Vi\u1ec7t Nam, chi n\u00e0y c\u00f3 42 lo\u00e0i, bao g\u1ed3m c\u1ea3 lo\u00e0i Impatiens monticola <\/em>Hook.f. m\u1edbi ghi nh\u1eadn g\u1ea7n \u0111\u00e2y. Trong qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u chi B\u00f3ng n\u01b0\u1edbc (Impatiens<\/em>) \u1edf m\u1ed9t s\u1ed1 khu v\u1ef1c n\u00fai \u0111\u00e1 v\u00f4i mi\u1ec1n B\u1eafc Vi\u1ec7t Nam, ch\u00fang t\u00f4i ph\u00e1t hi\u1ec7n lo\u00e0i Impatiens lobulifera <\/em>S.X.Yu, Y.L.Chen & H.N.Qin ph\u00e2n b\u1ed1 \u1edf V\u01b0\u1eddn Qu\u1ed1c gia Ba B\u1ec3, B\u1eafc K\u1ea1n. Lo\u00e0i Impatiens lobulifera <\/em>c\u00f3 m\u1ed9t v\u00e0i \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng l\u00e1 h\u00ecnh tr\u1ee9ng, cu\u1ed1ng l\u00e1 c\u00f3 2 tuy\u1ebfn tr\u00f2n; c\u1ee5m 2 – 3 hoa, hoa m\u00e0u v\u00e0ng xanh, m\u00f3ng g\u1eafn x\u1ebb 2 ph\u00eda ch\u00f3t, h\u1ea1t c\u00f3 l\u00f4ng. \u0110\u00e2y l\u00e0 lo\u00e0i b\u1ed5 sung cho h\u1ec7 th\u1ef1c v\u1eadt Vi\u1ec7t Nam v\u00e0 tr\u01b0\u1edbc l\u00e0 \u0111\u1eb7c h\u1eefu c\u1ee7a Trung Qu\u1ed1c.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Balsaminaceae, Impatiens<\/em>, I. <\/em><\/p>\n

 <\/p>\n

NGHI\u00caN<\/strong> C<\/strong>\u1ee8<\/strong>U<\/strong> TUY\u1ec2N<\/strong> CH<\/strong>\u1ecc<\/strong>N<\/strong> C\u00c2Y TR\u1ed8I<\/strong><\/p>\n

T\u00d4 H\u1ea0P \u0110I\u1ec6N BI\u00caN (Altingia siamensis <\/em>Craib) T\u1ea0I 2 T\u1ec8NH S\u01a0N LA V\u00c0 \u0110I\u1ec6N BI\u00caN<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Nguy\u1ec5n V\u0103n H\u00f9ng1, V\u00f5 \u0110\u1ea1i H\u1ea3i2, Nguy\u1ec5n H\u1ea3i H\u00f2a3, H\u00e0 V\u0103n Ti\u1ec7p1,<\/h3>\n

L\u00ea Anh Thanh<\/strong>1<\/strong>,<\/strong> V\u0169 V\u0103n Tu\u00e2n<\/strong>1<\/strong>, Nguy\u1ec5n Duy Kh\u00e1nh<\/strong>1<\/strong>, Phan Th\u1ecb Thanh Huy\u1ec1n<\/strong>4<\/strong><\/p>\n

1<\/em>Trung t\u00e2m khoa h\u1ecdc L\u00e2m nghi\u1ec7p T\u00e2y B\u1eafc <\/em>2<\/em>Vi\u1ec7n<\/em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam <\/em>3<\/em>Tr\u01b0\u1eddng<\/em> \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/em><\/p>\n

4<\/em>Tr\u01b0\u1eddng<\/em> \u0110\u1ea1i h\u1ecdc T\u00e2y B\u1eafc<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c 2 l\u00e2m ph\u1ea7n r\u1eebng tr\u1ed3ng \u0111\u1ec3 tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i T\u00f4 h\u1ea1p \u0111i\u1ec7n bi\u00ean t\u1ea1i x\u00e3 N\u00e0 T\u1ea5u, th\u00e0nh ph\u1ed1 \u0110i\u1ec7n Bi\u00ean Ph\u1ee7, t\u1ec9nh \u0110i\u1ec7n Bi\u00ean di\u1ec7n t\u00edch 2,5 ha tr\u1ed3ng thu\u1ea7n lo\u00e0i t\u1eeb n\u0103m 2009, m\u1eadt \u0111\u1ed9 ban \u0111\u1ea7u 1.600 c\u00e2y\/ha, m\u1eadt \u0111\u1ed9 hi\u1ec7n t\u1ea1i 1.030 c\u00e2y\/ha, s\u1ed1 c\u00e2y sai qu\u1ea3 chi\u1ebfm 60% t\u1ed5ng s\u1ed1 c\u00e2y c\u1ee7a l\u00e2m ph\u1ea7n, t\u1ea1i x\u00e3 Chi\u1ec1ng B\u00f4m, huy\u1ec7n Thu\u1eadn Ch\u00e2u, t\u1ec9nh S\u01a1n La di\u1ec7n t\u00edch 1 ha tr\u1ed3ng thu\u1ea7n lo\u00e0i l\u00e0m gi\u00e0u r\u1eebng trong th\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ph\u1ee5c h\u1ed3i sau n\u01b0\u01a1ng r\u1eaby n\u0103m 2009, m\u1eadt \u0111\u1ed9 ban \u0111\u1ea7u 500 c\u00e2y\/ha, hi\u1ec7n t\u1ea1i m\u1eadt \u0111\u1ed9 l\u00e0 415 c\u00e2y\/ha, s\u1ed1 l\u01b0\u1ee3ng c\u00e2y sai qu\u1ea3 chi\u1ebfm kho\u1ea3ng 50% s\u1ed1 c\u00e2y trong l\u00e2m ph\u1ea7n. Theo TCVN 8755-20217 – Gi\u1ed1ng l\u00e2m nghi\u1ec7p – C\u00e2y tr\u1ed9i, \u0111\u00e3 tuy\u1ec3n ch\u1ecdn \u0111\u01b0\u1ee3c 34 c\u00e2y tr\u1ed9i T\u00f4 h\u1ea1p \u0111i\u1ec7n bi\u00ean tr\u00ean 10 tu\u1ed5i v\u00e0 cho qu\u1ea3 \u0111\u01b0\u1ee3c 2 n\u0103m. \u0110\u00e2y l\u00e0 ngu\u1ed3n cung c\u1ea5p v\u1eadt li\u1ec7u nh\u00e2n gi\u1ed1ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e2y gi\u1ed1ng ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng. Trong \u0111\u00f3, 30 c\u00e2y tr\u1ed9i \u0111\u01b0\u1ee3c ch\u1ecdn t\u1ea1i x\u00e3 N\u00e0 T\u1ea5u, th\u00e0nh ph\u1ed1 \u0110i\u1ec7n Bi\u00ean Ph\u1ee7, t\u1ec9nh \u0110i\u1ec7n Bi\u00ean v\u00e0 4 c\u00e2y \u0111\u01b0\u1ee3c ch\u1ecdn t\u1ea1i x\u00e3 Chi\u1ec1ng B\u00f4m, huy\u1ec7n Thu\u1eadn Ch\u00e2u, t\u1ec9nh S\u01a1n La. C\u00e1c c\u00e2y tr\u1ed9i T\u00f4 h\u1ea1p \u0111i\u1ec7n bi\u00ean c\u00f3 \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 19,4 – 23,9 cm, trung b\u00ecnh \u0111\u1ea1t 21,9 cm, \u0111\u1ed9 v\u01b0\u1ee3t v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh so v\u1edbi \u0111\u00e1m r\u1eebng trung b\u00ecnh 34,2%; chi\u1ec1u cao v\u00fat ng\u1ecdn t\u1eeb 14 – 16 m, trung b\u00ecnh \u0111\u1ea1t 15,1 m \u0111\u1ed9 v\u01b0\u1ee3t v\u1ec1 chi\u1ec1u cao so v\u1edbi l\u00e2m ph\u1ea7n trung b\u00ecnh 13,9%.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>T\u00f4 h\u1ea1p \u0111i\u1ec7n bi\u00ean, c\u00e2y tr\u1ed9i, l\u00e2m ph\u1ea7n<\/p>\n

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RESEARCH<\/strong> SELECTION DOMINANT TREE Altingia siamensis <\/em>CRAIB IN TWO PROVINCES OF SON LA AND DIEN BIEN<\/strong><\/p>\n

Nguyen Van Hung <\/strong>1<\/strong>, Vo Dai Hai <\/strong>2<\/strong>, Nguyen Hai Hoa<\/strong>3<\/strong>, Ha Van Tiep<\/strong>1<\/strong>,<\/strong><\/p>\n

Le<\/strong> Anh Thanh<\/strong>1<\/strong>, Vu Van Tuan<\/strong>1<\/strong>, Nguyen Duy Khanh<\/strong>1<\/strong>, Phan Thi Thanh Huyen<\/strong>4<\/strong><\/p>\n

1 <\/em>Forest Science Centre of North Western Vietnam<\/em><\/p>\n

2 <\/em>Vietnamese Academy of Forest Sciences <\/em>3 <\/em>Vietnam National University of Forestry <\/em>4 <\/em>Tay Bac University<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

The research results have selected 2 stand plus tree Altingia siamensis <\/em>Craib, which is Na Tau commune, Dien Bien Phu city, Dien Bien province, the area of 2.5 hectares grown pure species since 2009 density Initially, 1,600 trees\/ha of current density 1,030 trees\/ha of the wrong fruit trees accounted for 60% of the total number of trees of lam part and Chieng Bom commune, Thuan Chau district, Son La province, an area of 1 ha. Recovery after the fields in 2009, the initial density of 500 trees\/ha currently density is 415 trees\/ha, the number of wrong fruit trees accounts for about 50% of the trees in the forest. According to TCVN 8755- 20217-Forestry varieties have recruited 34 plus tree Altingia siamensis <\/em>Craib are over 10 years old and for 2 years, this is the source of propagation materials to produce seedlings for afforestation. Of which, 30 plus tree was chosen in Na Tau commune, Dien Bien Phu city, Dien Bien province and 4 plus tree were chosen in Chieng Bom commune, Thuan Chau district, Son La province. The plus tree Altingia siamensis <\/em>Craib with a diameter of 19.4 – 23.9 cm on average reached 21.9 cm, exceeding the diameter compared to the average forest of 34.2%; The soaring height of 14 – 16 m average reaches 15.1 m to the height of the average part of 13.9%.<\/p>\n

Keyword:<\/em><\/strong> Altingia Siamensis <\/em>Craib, plus tree, stand<\/p>\n

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NGHI\u00caN C\u1ee8U TUY\u1ec2N CH\u1eccN C\u00c2Y TR\u1ed8I QU\u1ebe T\u1ea0I T\u1ec8NH B\u1eaeC K\u1ea0N<\/h2>\n

H\u00e0 V\u0103n N\u0103m, Ph\u1ea1m Ng\u1ecdc Th\u00e0nh, Nguy\u1ec5n Xu\u00e2n \u0110\u00e0i, H\u00e0 \u0110\u00ecnh Long, Tr\u01b0\u01a1ng Quang Tr\u00ed<\/h3>\n

Vi\u1ec7n<\/em> Nghi\u00ean c\u1ee9u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng – Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Qu\u1ebf (Cinnamomum cassia <\/em>Presl.) hi\u1ec7n l\u00e0 c\u00e2y tr\u1ed3ng mang l\u1ea1i gi\u00e1 tr\u1ecb kinh t\u1ebf cao cho ng\u01b0\u1eddi d\u00e2n m\u1ed9t s\u1ed1 huy\u1ec7n t\u1ea1i t\u1ec9nh B\u1eafc K\u1ea1n. Tuy nhi\u00ean, hi\u1ec7n ch\u01b0a c\u00f3 ngu\u1ed3n gi\u1ed1ng Qu\u1ebf n\u00e0o t\u1ea1i t\u1ec9nh \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc v\u00e0 c\u00f4ng nh\u1eadn. N\u0103ng su\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 h\u00e0m l\u01b0\u1ee3ng tinh d\u1ea7u trong v\u1ecf qu\u1ebf c\u0169ng ch\u01b0a \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 so s\u00e1nh v\u1edbi c\u00e1c v\u00f9ng tr\u1ed3ng Qu\u1ebf ch\u00ednh kh\u00e1c. Do \u0111\u00f3, nghi\u00ean c\u1ee9u ch\u1ecdn gi\u1ed1ng c\u00e2y tr\u1ed9i c\u00f3 n\u0103ng su\u1ea5t v\u1ecf v\u00e0 h\u00e0m l\u01b0\u1ee3ng tinh d\u1ea7u cao l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. K\u1ebft qu\u1ea3 tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i Qu\u1ebf t\u1ea1i c\u00e1c huy\u1ec7n Ch\u1ee3 \u0110\u1ed3n, Ch\u1ee3 M\u1edbi, TP. B\u1eafc K\u1ea1n \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c 123 c\u00e2y tr\u1ed9i c\u00f3 tu\u1ed5i t\u1eeb 11 – 30 n\u0103m, c\u00f3 \u0111\u1ed9 v\u01b0\u1ee3t 25,3 – 114,1% v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c, 9,8 – 22,4% v\u1ec1 chi\u1ec1u cao v\u00fat ng\u1ecdn v\u00e0 50,5 – 296,7% v\u1ec1 ch\u1ec9 ti\u00eau n\u0103ng su\u1ea5t v\u1ecf so v\u1edbi qu\u1ea7n th\u1ec3 xung quanh. C\u00e1c c\u00e2y tr\u1ed9i \u0111\u01b0\u1ee3c ch\u1ecdn c\u00f3 th\u00e2n th\u1eb3ng, v\u1ecf nh\u1eb5n, t\u00e1n to, c\u00e0nh to, \u0111\u00e3 ra hoa, qu\u1ea3. H\u00e0m l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng tinh d\u1ea7u trong m\u1eabu v\u1ecf c\u00e0nh c\u00e1c c\u00e2y tr\u1ed9i t\u1ea1i B\u1eafc K\u1ea1n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c ngu\u1ed3n gi\u1ed1ng Qu\u1ebf \u0111ang \u0111\u01b0\u1ee3c tr\u1ed3ng khai th\u00e1c r\u1ed9ng r\u00e3i t\u1ea1i Y\u00ean B\u00e1i v\u00e0 L\u00e0o Cai. H\u00e0m l\u01b0\u1ee3ng tinh d\u1ea7u Qu\u1ebf t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb 2,5 – 6,5% so v\u1edbi Y\u00ean B\u00e1i – L\u00e0o Cai 2,5 – 4,2%, t\u1ef7 tr\u1ecdng tinh d\u1ea7u t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb 1,037 – 1,044 so v\u1edbi Y\u00ean B\u00e1i – L\u00e0o Cai 1,018 – 1,041, ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 tinh d\u1ea7u t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb 1,594 – 1,605 so v\u1edbi c\u1ee7a Y\u00ean B\u00e1i – L\u00e0o Cai 1,588 – 1,604, \u0111\u1ed9 quay c\u1ef1c c\u1ee7a tinh d\u1ea7u Qu\u1ebf t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb -0,96 \u0111\u1ebfn -0,48 so v\u1edbi Y\u00ean B\u00e1i – L\u00e0o Cai -0,97 \u0111\u1ebfn 0,00. H\u00e0m l\u01b0\u1ee3ng Trans-aldehyt cinamic trong tinh d\u1ea7u Qu\u1ebf t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb 83,95 – 92,10% so v\u1edbi t\u1ea1i Y\u00ean B\u00e1i – L\u00e0o Cai 88,84 – 91,35%, h\u00e0m l\u01b0\u1ee3ng Coumarin trong tinh d\u1ea7u t\u1ea1i B\u1eafc K\u1ea1n t\u1eeb 0,65<\/p>\n

– 1,58% so v\u1edbi Y\u00ean B\u00e1i – L\u00e0o Cai 0,58 – 1,23%, th\u1ea5p h\u01a1n m\u1ee9c quy \u0111\u1ecbnh t\u1ea1i TCVN 6029:2008 t\u1ed1i \u0111a \u2264 4%.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Qu\u1ebf, ch\u1ecdn gi\u1ed1ng, c\u00e2y tr\u1ed9i, h\u00e0m l\u01b0\u1ee3ng tinh d\u1ea7u, t\u1ec9nh B\u1eafc K\u1ea1n<\/p>\n

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RESEARCH<\/strong> ON SELECTION OF SELECTING PLUS TREE OF Cinnamomum cassia<\/em><\/strong><\/p>\n

IN<\/strong> BAC KAN PROVINCES<\/strong><\/p>\n

Ha Van Nam, Pham Ngoc Thanh, Nguyen Xuan Dai, Ha Dinh Long, Truong Quang Tri<\/strong><\/p>\n

Reseach Institute for Forest Ecology and Environment – Vietnamese Academy of Forest Sciences<\/em><\/p>\n

Cinnamon (Cinnamomum cassia <\/em>Presl.) is a high-value species that brings significant economic benefits to the communities in some districts in Bac Kan province. However, there is currently no selected and certified Cinnamon variety and there is no report on the productivity, quality, and essential oil content in the bark compared to other cinnamon-growing regions. Therefore, it is crucial in selection of plus trees with high bark productivity and essential oil content. The results of plus trees selection in Cho Don, Cho Moi, and Bac Kan City have identified 123 trees aged between 11 and 30 years. These trees showed superior growth compared to trees in the surrounding population, with a diameter at breast height exceeding 25.3 – 114.1%, 9.8 – 22.4% in height and 50.5 – 296.7% in bark productivity. The selected trees have straight trunks, smooth bark, large canopy, thick branches, and have already produced flowers and fruits. The content and quality of the essential oil in the bark and branches of the selected trees in Bac Kan are equivalent to those in the cinnamon varieties that are currently exploited in Yen Bai and Lao Cai provinces. The essential oil content ranges from 2.5% to 6.5% compared to 2.5% to 4.2% in Yen Bai – Lao Cai’s varieties. The specific gravity, and refractive index of the essential oil ranges from 1.037 to 1.044 and 1.594 to 1.605, respectively which is higher than those in Yen Bai – Lao Cai’s varieties. The optical rotation of the essential oil in Bac Kan plus trees ranges from –<\/p>\n

0.96 to -0.48, higher than in Yen Bai – Lao Cai’s varieties which range from -0.97 to 0.00. The content of trans-cinnamaldehyde is from 83.95% to 92.10% compared to 88.84% to 91.35% in Yen Bai – Lao Cai’s varieties. The content of coumarin in the essential oil ranges from 0.65% to 1.58%, which is lower than the maximum limit of 4% regulated by TCVN 6029:2008.<\/p>\n

Keywords:<\/em><\/strong> Cinnamomum cassia<\/em>, plus trees selection, essential oil content, Bac Kan provices<\/p>\n

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PH\u00c2N T\u00cdCH S\u1ef0 THAY \u0110\u1ed4I L\u1edaP PH\u1ee6<\/h2>\n

\u1ede HUY\u1ec6N \u0110\u1eaeK GLONG – T\u1ec8NH \u0110\u1eaeK N\u00d4NG GIAI \u0110O\u1ea0N 2011 – 2023<\/strong> D<\/strong>\u1ef0A<\/strong> V\u00c0O \u1ea2NH V\u1ec6 TINH \u0110A TH\u1edcI GIAN<\/strong><\/p>\n

Cao Th\u1ecb Ho\u00e0i v\u00e0 Nguy\u1ec5n Th\u1ecb Thanh H\u01b0\u01a1ng<\/h3>\n

Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc T\u00e2y Nguy\u00ean<\/em><\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Nghi\u00ean c\u1ee9u \u0111\u00e3 \u1ee9ng d\u1ee5ng \u1ea3nh v\u1ec7 tinh Landsat \u0111a th\u1eddi gian \u0111\u1ec3 ph\u00e2n t\u00edch thay \u0111\u1ed5i l\u1edbp ph\u1ee7 t\u1ea1i huy\u1ec7n \u0110\u1eafk Glong – t\u1ec9nh \u0110\u1eafk N\u00f4ng trong 3 giai \u0111o\u1ea1n: 2011 – 2015, 2015 – 2019 v\u00e0 2019 – 2023. Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n lo\u1ea1i c\u00f3 ki\u1ec3m \u0111\u1ecbnh phi tham s\u1ed1 Random Forest (RF) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n lo\u1ea1i \u1ea3nh v\u1ec7 tinh Landsat trong c\u00e1c n\u0103m 2011, 2015, 2019 v\u00e0 n\u0103m 2023. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e2n lo\u1ea1i kh\u00e1 cao, t\u1eeb 84,51% \u0111\u1ebfn 90,53% t\u01b0\u01a1ng \u1ee9ng v\u1edbi h\u1ec7 s\u1ed1 Kappa t\u1eeb 0,78 \u0111\u1ebfn 0,85. K\u1ebft qu\u1ea3 ch\u1ec9 ra di\u1ec7n t\u00edch r\u1eebng t\u1ef1 nhi\u00ean \u0111\u00e3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 theo th\u1eddi gian, t\u1eeb 63,52%, gi\u1ea3m xu\u1ed1ng 46,21%, 39,74 v\u00e0 39,28% t\u01b0\u01a1ng \u1ee9ng c\u00e1c n\u0103m 2011, 2015, 2019 v\u00e0 2023 (gi\u1ea3m x\u1ea5p x\u1ec9 15%, t\u01b0\u01a1ng \u1ee9ng v\u1edbi gi\u1ea3m tr\u00ean 35 ng\u00e0n ha r\u1eebng t\u1ef1 nhi\u00ean trong c\u1ea3 giai \u0111o\u1ea1n \u0111i\u1ec1u tra). Trong khi \u0111\u00f3, c\u00e1c lo\u1ea1i l\u1edbp ph\u1ee7 kh\u00e1c c\u00f3 s\u1ef1 t\u0103ng l\u00ean v\u1ec1 di\u1ec7n t\u00edch qua c\u00e1c th\u1eddi k\u1ef3, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ea5t n\u00f4ng nghi\u1ec7p v\u00e0 \u0111\u1ea5t kh\u00e1c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u c\u1ee7a con ng\u01b0\u1eddi khi d\u00e2n s\u1ed1 t\u0103ng l\u00ean. Tuy nhi\u00ean, giai \u0111o\u1ea1n 2019 – 2023 c\u0169ng ch\u1ec9 ra s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a di\u1ec7n t\u00edch r\u1eebng t\u1ef1 nhi\u00ean do t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c ch\u00ednh s\u00e1ch qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o v\u1ec7 r\u1eebng c\u1ee7a Nh\u00e0 n\u01b0\u1edbc v\u00e0 c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o cho c\u00e1c c\u01a1 quan ch\u1ee9c n\u0103ng, c\u00e1c ch\u1ee7 r\u1eebng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 th\u1ef1c tr\u1ea1ng v\u00e0 di\u1ec5n bi\u1ebfn r\u1eebng \u0111\u1ec3 c\u00f3 nh\u1eefng k\u1ebf ho\u1ea1ch, ch\u00ednh s\u00e1ch qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o v\u1ec7 r\u1eebng ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Landsat, l\u1edbp ph\u1ee7, ph\u00e2n lo\u1ea1i \u1ea3nh, Random forest classification.<\/p>\n

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ANALYSIS OF LAND COVER CHANGES IN DAK GLONG DISTRICT – DAK NONG PROVINCE PERIOD 2011 – 2023 BASED ON MULTI-TEMPORAL SATELLITE IMAGES<\/strong><\/p>\n

Cao Thi Hoai and Nguyen Thi Thanh Huong<\/strong><\/p>\n

Tay Nguyen University<\/em><\/p>\n

\u00a0<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

The study conducted in Dak Glong district, Daknong province, utilized Landsat satellite imagery and the Random Forest (RF) algorithm to analyze land use and land cover changes over three time periods: 2011 – 2015, 2015 – 2019, and 2019 – 2023. The classification accuracy ranged from 84.51% to 90.53%, with a Kappa coefficient varying from 0.78 to 0.85, indicating a reliable and accurate classification process. Key findings revealed a significant decline in natural forest area, decreasing from 63.52% in 2011 to 39.28% in 2023. This represents a 15% decrease over the entire survey period, equivalent to over 35,000 hectares of natural forest. Conversely, other land cover types, such as croplands, showed an increase in area over the specified periods. Notably, from 2019 to 2023, natural forest areas exhibited better management, possibly attributed to forest management and protection policies from both the government and local initiatives. This positive trend is crucial for sustaining forest resources. The research results serve as an information resource for relevant agencies and forest owners, facilitating the assessment of current forest status and trends. This information is instrumental in developing plans, management policies, and forest protection measures aligned with local directions.<\/p>\n

Keywords:<\/em><\/strong> Landsat, land cover, classification, Random Forest classification<\/p>\n

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X\u00c1C \u0110\u1ecaNH SINH KH\u1ed0I V\u00c0 KH\u1ea2 N\u0102NG T\u00cdCH L\u0168Y CARBON C\u1ee6A R\u1eeaNG TR\u1ed2NG THU\u1ea6N LO\u00c0I KEO LAI<\/h2>\n

T\u1ea0I<\/strong> KHU<\/strong> D<\/strong>\u1ef0<\/strong> TR<\/strong>\u1eee<\/strong> SINH QUY\u1ec2N \u0110\u1ed2NG NAI<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Nguy\u1ec5n V\u0103n Tu\u1ea5n, Nguy\u1ec5n V\u0103n Th\u1ecbnh, Ph\u1ea1m Ti\u1ebfn D\u0169ng, Nguy\u1ec5n Huy Ho\u00e0ng, Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, Nguy\u1ec5n Th\u1ecb Thu Ph\u01b0\u01a1ng, Tr\u1ea7n H\u1ed3ng V\u00e2n<\/h3>\n

Vi\u1ec7n<\/em> Nghi\u00ean c\u1ee9u L\u00e2m sinh – Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

B\u00e0i vi\u1ebft tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 x\u00e1c \u0111\u1ecbnh sinh kh\u1ed1i v\u00e0 kh\u1ea3 n\u0103ng t\u00edch l\u0169y carbon r\u1eebng tr\u1ed3ng keo lai (acacia hybrid) t\u1ea1i Khu D\u1ef1 tr\u1eef Sinh quy\u1ec3n \u0110\u1ed3ng Nai. S\u1ed1 li\u1ec7u nghi\u00ean c\u1ee9u thu th\u1eadp tr\u00ean 45 \u00f4 ti\u00eau chu\u1ea9n (OTC) \u0111i\u1ec3n h\u00ecnh, di\u1ec7n t\u00edch m\u1ed7i \u00f4 l\u00e0 500 m2 (20 \uf0b4\uf02025 m) \u0111\u1ea1i di\u1ec7n cho c\u00e1c c\u1ea5p \u0111\u1ea5t I, II, III v\u00e0 c\u00e1c tu\u1ed5i t\u1eeb 3 \u0111\u1ebfn 7. Tr\u00ean m\u1ed7i OTC, ti\u1ebfn h\u00e0nh ch\u1eb7t h\u1ea1 02 c\u00e2y ti\u00eau chu\u1ea9n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh sinh kh\u1ed1i. Sinh kh\u1ed1i \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 thi\u1ebft l\u1eadp m\u1ed1i quan h\u1ec7 gi\u1eefa sinh kh\u1ed1i v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 \u0111i\u1ec1u tra \u0111\u1ec3 \u01b0\u1edbc t\u00ednh sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon c\u1ee7a c\u00e2y c\u00e1 th\u1ec3 v\u00e0 l\u00e2m ph\u1ea7n. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon bi\u1ebfn \u0111\u1ed9ng theo tu\u1ed5i v\u00e0 c\u1ea5p \u0111\u1ea5t. Trong c\u00f9ng m\u1ed9t tu\u1ed5i r\u1eebng tr\u1ed3ng, sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon c\u00f3 xu h\u01b0\u1edbng gi\u1ea3m d\u1ea7n theo t\u1eebng c\u1ea5p \u0111\u1ea5t (t\u1eeb I \u0111\u1ebfn III), trong khi sinh kh\u1ed1i v\u00e0 tr\u1eef l\u01b0\u1ee3ng carbon t\u0103ng l\u00ean r\u00f5 r\u1ec7t theo tu\u1ed5i t\u1eeb 3 \u0111\u1ebfn 7 \u1edf trong c\u00f9ng m\u1ed9t c\u1ea5p \u0111\u1ea5t. Nghi\u00ean c\u1ee9u ch\u1ec9 ra \u0111\u01b0\u1ee3c m\u1ed1i t\u01b0\u01a1ng quan ch\u1eb7t gi\u1eefa t\u1ed5ng sinh kh\u1ed1i c\u00e2y c\u00e1 th\u1ec3 v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 \u0111i\u1ec1u tra D (\u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c) v\u00e0 H (chi\u1ec1u cao v\u00fat ng\u1ecdn).<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Keo lai, h\u1ea5p th\u1ee5 CO2, r\u1eebng tr\u1ed3ng, sinh kh\u1ed1i, tr\u1eef l\u01b0\u1ee3ng carbon<\/p>\n

 <\/p>\n

ESTIMATES<\/strong> OF BIOMASS AND CARBON SEQUESTRATION OF ACACIA HYBRID PLANTATION IN DONG NAI BIOSPHERE RESERVE<\/strong><\/p>\n

Nguyen Van Tuan, Nguyen Van Thinh, Pham Tien Dung, Nguyen Huy Hoang, Nguyen Viet Cuong, Nguyen Thi Thu Phuong, Tran Hong Van<\/strong><\/p>\n

Silviculture Research Institute – Vietnamese Academy of Forest Sciences<\/em><\/p>\n

\u00a0<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

This paper presents findings on estimating biomass and carbon sequestration of acacia hybrid plantation in Dong Nai Biosphere Reserve. Data were collected in 45 sample plots with the plot area of 500 m2\u00a0(20 \uf0b4\uf02025 m) representing soil classes I, II, III and ages of 3 to 7 year old plantations. Two sample trees were selected in each sample plot for destrcution to measure fresh biomass. Dry\u00a0 biomass was analyzed in laboratory\u00a0 and the relationship between dry biomass and forest inventory factors to estimate dry-mass and carbon stock of individual trees and plantation stand. Findings indicated that fresh biomass, dry biomass and carbon storage fluctuate in different ages and soil classes. At the same age of plantation, biomass and carbon storage tends to gradually decrease according to soil classes (from I to III) and while biomass and carbon stock increases greatly as the increased plantation ages from 3 to 7 years in the same soil class. Another resutlt shows that there is a close correlation between total tree dry biomass and D (diameter at breast height) and H (total tree height).<\/p>\n

Keywords:<\/em><\/strong> Carbon stock, CO2 sequestration, acacia hybrid plantation, biomass<\/p>\n

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\u0110\u00c1NH GI\u00c1 KH\u1ea2 N\u0102NG TH\u00cdCH H\u1ee2P<\/h2>\n

V\u00c0 X\u00c2Y D\u1ef0NG B\u1ea2N \u0110\u1ed2 TI\u1ec0M N\u0102NG PH\u00c1T TRI\u1ec2N<\/strong><\/p>\n

S\u00c2<\/strong>M<\/strong> LAI CH\u00c2U (Panax vietnamensis <\/em>var. fuscidiscus)<\/em><\/strong><\/p>\n

T\u1ea0I HUY\u1ec6N TAM \u0110\u01af\u1edcNG, T\u1ec8NH LAI CH\u00c2U<\/h2>\n

\u00a0<\/strong><\/p>\n

Tr\u01b0\u01a1ng Tr\u1ecdng Kh\u00f4i1, Nguy\u1ec5n V\u0103n Tu\u1ea5n1, Tr\u1ecbnh Ng\u1ecdc Bon1, B\u00f9i Thanh T\u00e2n1, Nguy\u1ec5n Th\u1ecb Ho\u00e0i Anh1, Nguy\u1ec5n \u0110\u00ecnh Th\u01b0\u1ee3ng2,<\/h3>\n

Ph\u1ea1m<\/strong> Danh Tuy\u00ean<\/strong>3<\/strong>, Ph\u1ea1m Quang Tuy\u1ebfn<\/strong>1<\/strong>, Tr\u01b0\u01a1ng T\u1ea5t \u0110\u01a1<\/strong>4<\/strong><\/p>\n

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

2<\/em>Ph\u00f2ng N\u00f4ng nghi\u1ec7p v\u00e0 PTNT huy\u1ec7n Tam \u0110\u01b0\u1eddng<\/em><\/p>\n

3<\/em>Ban Qu\u1ea3n l\u00fd R\u1eebng ph\u00f2ng h\u1ed9 huy\u1ec7n Tam \u0110\u01b0\u1eddng<\/em><\/p>\n

4<\/em>C\u1ee5c L\u00e2m nghi\u1ec7p – B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 Ph\u00e1t tri\u1ec3n n\u00f4ng th\u00f4n<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Nghi\u00ean c\u1ee9u n\u00e0y nh\u1eb1m x\u00e2y d\u1ef1ng c\u00e1c ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p \u0111\u1ec3 tr\u1ed3ng c\u00e2y S\u00e2m lai ch\u00e2u v\u00e0 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 v\u00f9ng tr\u1ed3ng ti\u1ec1m n\u0103ng cho S\u00e2m lai ch\u00e2u t\u1ea1i huy\u1ec7n Tam \u0110\u01b0\u1eddng, t\u1ec9nh Lai Ch\u00e2u. C\u00e1c ch\u1ec9 s\u1ed1 \u0111\u01b0a v\u00e0o \u0111\u00e1nh gi\u00e1 l\u00e0 c\u00e1c nh\u00e2n t\u1ed1 nhi\u1ec1u bi\u1ebfn \u0111\u1ed9ng, \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u00e2y S\u00e2m lai ch\u00e2u (nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 cao, \u0111\u1ed9 d\u1ed1c, \u0111\u1ed9 \u1ea9m). K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u b\u01b0\u1edbc \u0111\u1ea7u cho th\u1ea5y, \u0111\u1ec3 thu\u1eadn l\u1ee3i cho vi\u1ec7c canh t\u00e1c, S\u00e2m lai ch\u00e2u ph\u00f9 h\u1ee3p \u1edf \u0111\u1ed9 cao t\u1eeb 1.400 – 2.200 m so v\u1edbi m\u1eb7t n\u01b0\u1edbc bi\u1ec3n, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m t\u1eeb 13 – 22oC, y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 d\u1ed1c < 25o, \u0111\u1ed9 \u1ea9m > 80%. V\u00f9ng th\u00edch h\u1ee3p tr\u1ed3ng S\u00e2m lai ch\u00e2u t\u1ea1i huy\u1ec7n Tam \u0110\u01b0\u1eddng, t\u1ec9nh Lai Ch\u00e2u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ch\u1ed3ng x\u1ebfp l\u1edbp b\u1ea3n \u0111\u1ed3 theo c\u00e1c ti\u00eau ch\u00ed v\u1ec1 \u0111\u1ed9 cao tuy\u1ec7t \u0111\u1ed1i, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 d\u1ed1c ph\u00f9 h\u1ee3p v\u1edbi di\u1ec7n t\u00edch l\u00e0 30.381,40 ha chi\u1ebfm 46,32% di\u1ec7n t\u00edch t\u1ef1 nhi\u00ean c\u1ee7a to\u00e0n huy\u1ec7n. C\u00e1c x\u00e3 c\u00f3 di\u1ec7n t\u00edch > 1.500 ha v\u00e0 c\u00f3 ti\u1ec1m n\u0103ng \u0111\u1ec3 tr\u1ed3ng S\u00e2m lai ch\u00e2u g\u1ed3m 7 x\u00e3: S\u01a1n B\u00ecnh, Khun H\u00e1, T\u1ea3 L\u00e8ng, B\u1ea3n Bo, H\u1ed3 Th\u1ea7u, Giang Ma, N\u00f9ng N\u00e0ng. Trong \u0111\u00f3, di\u1ec7n t\u00edch ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u1ed3ng S\u00e2m lai ch\u00e2u t\u1eadp trung \u1edf di\u1ec7n t\u00edch r\u1eebng ph\u00f2ng h\u1ed9 l\u00e0 23.199,27ha, di\u1ec7n t\u00edch r\u1eebng s\u1ea3n xu\u1ea5t l\u00e0 4.607,75 ha, c\u00f2n l\u1ea1i 2.574,38 ha l\u00e0 di\u1ec7n t\u00edch ngo\u00e0i quy ho\u1ea1ch l\u00e2m nghi\u1ec7p. Nh\u01b0 v\u1eady, v\u00f9ng tr\u1ed3ng ti\u1ec1m n\u0103ng trong di\u1ec7n t\u00edch r\u1eebng s\u1ea3n xu\u1ea5t kh\u00e1 l\u1edbn (4.607,75 ha) c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ecbnh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n S\u00e2m lai ch\u00e2u tr\u00ean \u0111\u1ecba b\u00e0n huy\u1ec7n Tam \u0110\u01b0\u1eddng, \u0111\u1ea3m b\u1ea3o c\u00e1c quy \u0111\u1ecbnh ph\u00e1p lu\u1eadt v\u1ec1 qu\u1ea3n l\u00fd r\u1eebng, tri\u1ec3n khai Ch\u01b0\u01a1ng tr\u00ecnh ph\u00e1t tri\u1ec3n S\u00e2m Vi\u1ec7t Nam theo Quy\u1ebft \u0111\u1ecbnh s\u1ed1 611\/Q\u0110-TTg ng\u00e0y 01\/6\/2023 c\u1ee7a Th\u1ee7 t\u01b0\u1edbng Ch\u00ednh ph\u1ee7, ph\u00e1t tri\u1ec3n gi\u00e1 tr\u1ecb \u0111a m\u1ee5c \u0111\u00edch c\u1ee7a h\u1ec7 sinh th\u00e1i r\u1eebng nh\u1eb1m c\u1ea3i thi\u1ec7n sinh k\u1ebf, n\u00e2ng cao \u0111\u1eddi s\u1ed1ng cho ng\u01b0\u1eddi d\u00e2n l\u00e0m ngh\u1ec1 r\u1eebng.<\/p>\n

T\u1eeb<\/em><\/strong> kh\u00f3a:<\/em><\/strong> Huy\u1ec7n Tam \u0110\u01b0\u1eddng, S\u00e2m lai ch\u00e2u, \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p, kh\u1ea3 n\u0103ng th\u00edch nghi, b\u1ea3n \u0111\u1ed3 v\u00f9ng tr\u1ed3ng ti\u1ec1m n\u0103ng.<\/p>\n

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ASSESSING ADAPTABILITY AND CREATTING POTENTIAL MAP<\/strong><\/p>\n

FOR GROWING LAI CHAU GINSENG (Panax vietnamensis <\/em>var. fuscidiscus<\/em>) IN TAM DUONG DISTRICT, LAI CHAU PROVINCE<\/strong><\/p>\n

Truong Trong Khoi<\/strong>1<\/strong>, Nguyen Van Tuan<\/strong>1<\/strong>, Trinh Ngoc Bon<\/strong>1<\/strong>, Bui Thanh Tan<\/strong>1<\/strong>, Nguyen Thi Hoai Anh<\/strong>1<\/strong>, Nguyen Dinh Thuong<\/strong>2<\/strong>, Pham Danh Tuyen<\/strong>3<\/strong>, Pham Quang Tuyen<\/strong>1<\/strong>, Truong Tat Do<\/strong>4<\/strong><\/p>\n

1<\/em>Silviculture Research Institute (SRI)<\/em><\/p>\n

2 <\/em>Division of Agriculture and Rural Development of Tam Duong district<\/em><\/p>\n

3<\/em>Tam Duong district protection forest management board<\/em><\/p>\n

4<\/em>Department of Forestry – Ministry of Agriculture and Rural Development<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

This study aimed to determine criteria to assess suitable conditions of growing Lai Chau ginseng and to map out potential planting area for Lai Chau ginsen in Tam Duong district, Lai Chau province. Initial research<\/p>\n

results show that Lai Chau Ginseng is suitable at an altitude of 1,400 – 2,200 m above sea level; the average annual temperature is from 13 – 22oC; the slope requirement is < 25o, humidity > 80% to be convenient for the cultivation. Suitable areas for planting Lai Chau ginseng in Tam Duong district, Lai Chau province by overlaying maps of absolute altitude, temperature and suitable slope layers is 30,381.40 ha, accounting for<\/p>\n

46.32 % of Tam Duong’s natural area.<\/p>\n

The communes with an area of over 1,500 hectares and potential for planting Lai Chau ginseng include 7 communes: Son Binh, Khun Ha, Ta Leng, Ban Bo, Ho Thau, Giang Ma, and Nung Nang. In which, the suitable area for planting Lai Chau ginseng is mainly concentrated in protection forests is 23,199.27 hectares, the production forest area accounts for 4,607.75 hectares, the remaining 2,574.38 hectares is unspecified areas. Thus, potentially planting area in production forest are is 4,607.75 ha which is of great significance in formulating the planning plan and development orientation of Lai Chau ginseng in the communes of Tam Duong district, ensuring the legal regulation on forest management, implement the Vietnam Ginseng Development Program according to the Primer Minister\u2019s Decision No.611\/QD-TTg dated on June 1, 2023, develop the multi-pupose value of the forest ecosystem in order to improve livelihood and living standard of people living near by forest.<\/p>\n

Keywords: <\/em><\/strong>Tam Duong district, Panax vietnamensis <\/em>var. fuscidiscus<\/em>, suitable condition, adaptability, potential planting area<\/p>\n

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NGHI\u00caN C\u1ee8U M\u1ed8T S\u1ed0 BI\u1ec6N PH\u00c1P K\u1ef8 THU\u1eacT TR\u1ed2NG<\/h2>\n

TR\u00c0<\/strong>M<\/strong> GI\u00d3 (Melal<\/em>euca cajupti <\/em>Powell) in vitro<\/em><\/strong><\/p>\n

\u1ede V\u00d9NG \u0110\u1ed2I V\u00c0 V\u00d9NG C\u00c1T T\u1ea0I TH\u1eeaA THI\u00caN HU\u1ebe<\/h2>\n

\u00a0<\/strong><\/p>\n

T\u00f4n Th\u1ea5t \u00c1i T\u00edn<\/strong>1<\/strong>,<\/strong> Ph\u1ea1m C\u01b0\u1eddng<\/strong>2<\/strong>,<\/strong> T\u1ed1ng Ph\u01b0\u1edbc B\u00ecnh<\/strong>1<\/strong>, Nguy\u1ec5n Cao Danh<\/strong>1<\/strong>, Phan Thi\u00ean Giang<\/strong>1<\/strong>,<\/strong> Ho\u00e0ng<\/strong> Huy Tu\u1ea5n<\/strong>2<\/strong>\u00a0<\/strong>1<\/em>C\u00f4ng ty TNHH Nh\u00e0 n\u01b0\u1edbc MTV L\u00e2m nghi\u1ec7p Ti\u1ec1n Phong<\/em><\/p>\n

2<\/em>Tr\u01b0\u1eddng<\/em> \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m, \u0110\u1ea1i h\u1ecdc Hu\u1ebf<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

C\u00e2y Tr\u00e0m gi\u00f3 (Melaleuca cajupti <\/em>Powell) thu\u1ed9c h\u1ecd Sim Myrtaceae l\u00e0 c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb d\u01b0\u1ee3c li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ed3ng ph\u1ed5 bi\u1ebfn t\u1ea1i t\u1ec9nh Th\u1eeba Thi\u00ean Hu\u1ebf l\u00e0m nguy\u00ean li\u1ec7u chi\u1ebft xu\u1ea5t tinh d\u1ea7u. Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c nh\u00e2n t\u1ed1 m\u1eadt \u0111\u1ed9, k\u00edch th\u01b0\u1edbc h\u1ed1 \u0111\u00e0o v\u00e0 l\u01b0\u1ee3ng ph\u00e2n b\u00f3n l\u00f3t \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng, sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u00e2y Tr\u00e0m gi\u00f3 in vitro <\/em>tr\u1ed3ng tr\u00ean v\u00f9ng \u0111\u1ea5t \u0111\u1ed3i v\u00e0 \u0111\u1ea5t c\u00e1t \u1edf Th\u1eeba Thi\u00ean Hu\u1ebf. K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 sau 1 n\u0103m tr\u1ed3ng cho th\u1ea5y, m\u1eadt \u0111\u1ed9 tr\u1ed3ng th\u00edch h\u1ee3p \u1edf v\u00f9ng \u0111\u1ea5t c\u00e1t v\u00e0 \u0111\u1ea5t \u0111\u1ed3i 10.000 c\u00e2y\/ha, k\u00edch th\u01b0\u1edbc h\u1ed1 40 \uf0b4\uf02040 \uf0b4\uf02040 cm ph\u00f9 h\u1ee3p \u1edf v\u00f9ng \u0111\u1ed3i v\u00e0 v\u00f9ng c\u00e1t k\u00edch th\u01b0\u1edbc h\u1ed1 l\u00e0 30 \uf0b4\uf02030 \uf0b4\uf02030 cm. B\u00f3n l\u00f3t ph\u00e2n vi sinh S\u00f4ng H\u01b0\u01a1ng li\u1ec1u l\u01b0\u1ee3ng 0,5 kg\/h\u1ed1, c\u00e2y tr\u00ean \u0111\u1ea5t \u0111\u1ed3i cho sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t tr\u00ean 90,0%, chi\u1ec1u cao v\u00fat ng\u1ecdn 141,1 cm, \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c \u0111\u1ea1t 2,6 cm, \u0111\u01b0\u1eddng k\u00ednh t\u00e1n tr\u00ean 72,0 cm v\u00e0 c\u00f3 b\u00ecnh qu\u00e2n 72,0 c\u00e0nh\/c\u00e2y; trong khi \u0111\u00f3 \u1edf v\u00f9ng \u0111\u1ea5t c\u00e1t, c\u00f4ng th\u1ee9c b\u00f3n l\u00f3t ph\u00e2n vi sinh S\u00f4ng H\u01b0\u01a1ng t\u1ed1t nh\u1ea5t \u1edf li\u1ec1u l\u01b0\u1ee3ng 1,0 kg\/h\u1ed1 cho t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t tr\u00ean 89,5%, chi\u1ec1u cao v\u00fat ng\u1ecdn, \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c, \u0111\u01b0\u1eddng k\u00ednh t\u00e1n theo l\u1ea7n l\u01b0\u1ee3t 60,0 cm, 0,84 cm, 31,5 cm v\u00e0 c\u00f3 b\u00ecnh qu\u00e2n 28,9 c\u00e0nh\/c\u00e2y.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>C\u00e2y Tr\u00e0m gi\u00f3 in vitro<\/em>, k\u1ef9 thu\u1eadt tr\u1ed3ng, Th\u1eeba Thi\u00ean Hu\u1ebf.<\/p>\n

 <\/p>\n

RESEARCH<\/strong> ON SOME TECHNICAL MEASURES OF in vitro <\/em>CULTIVATION<\/strong><\/p>\n

OF Melaleuca cajupti <\/em>Powell IN HILLS AND SANDAL AREAS IN THUA THIEN HUE<\/strong><\/p>\n

Ton That Ai Tin<\/strong>1<\/strong>, Pham Cuong<\/strong>2<\/strong>, Tong Phuoc Binh<\/strong>1<\/strong>, Nguyen Cao Danh<\/strong>1<\/strong>, Phan Thien Giang<\/strong>1<\/strong>, Hoang Huy Tuan<\/strong>2<\/strong><\/p>\n

1<\/em>Tien Phong Forestry Co, Ltd<\/em><\/p>\n

2<\/em>University of Agriculture and Foretsry, Hue University (HUAF)<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

Melaleuca cajupti <\/em>Powell belongs to the Myrtaceae family and is a tree with medicinal value that is commonly grown in Thua Thien Hue province as a raw material for essential oil extraction. This study has determined the influence of factors such as density, pit size and amount of fertilizer on the survival rate,\u00a0 growth and development of in vitro Melaleuca trees grown on hilly and sandy soils in Vietnam. Hue. The analyzed results after 1 year of planting shows that the appropriate planting density in sandy and hilly areas is 10.000 trees\/ha, hole size of 40 \uf0b4\uf02040 \uf0b4\uf02040 cm is suitable in hilly areas and in sandy areas the hole size is 30 \uf0b4\uf02030 \uf0b4\uf02030 cm. Applying Song Huong microbial fertilizer at a dose of 0.5 kg per hole in the hill area gives the best tree growth with a survival rate of over 90.0%, a top height of 141.1 cm, and a base diameter of 2.6 cm, canopy diameter over 72.0 cm and an average of 72.0 branches tree-1; Meanwhile, in sandy soil areas, the best Song Huong biofertilizer formula at a dose of 1.0 kg hole-1 gives a survival rate of over 89.5%, top height, base diameter, and canopy diameter with 60.0 cm, 0.84 cm, 31.5 cm respectively and have an average of 28.9 branches tree-1.<\/p>\n

Keywords:<\/em><\/strong> Invitro Melaleuca <\/em>tree, planting techniques, Thua Thien Hue.<\/p>\n

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 <\/p>\n

 <\/p>\n

\u1ea2NH H\u01af\u1edeNG C\u1ee6A M\u1ed8T S\u1ed0 T\u1ed4 H\u1ee2P PH\u00c2N B\u00d3N<\/h2>\n

\u0110<\/strong>\u1ed0<\/strong>I<\/strong> V<\/strong>\u1eda<\/strong>I<\/strong> C\u00c2Y B\u00d2 KHAI (Erythropalum<\/em> scandens <\/em>Blume) \u1ede GIAI \u0110O\u1ea0N C\u00c2Y NON<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Nguy\u1ec5n Ch\u00ed Hi\u1ec3u<\/h3>\n

Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m – \u0110\u1ea1i h\u1ecdc Th\u00e1i Nguy\u00ean<\/em><\/p>\n

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Ph\u00e2n b\u00f3n cung c\u1ea5p nh\u1eefng d\u01b0\u1ee1ng ch\u1ea5t c\u1ea7n thi\u1ebft cho sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y tr\u1ed3ng. Vi\u1ec7c c\u00e2n \u0111\u1ed1i t\u1ef7 l\u1ec7 ph\u00e2n b\u00f3n cho c\u00e2y c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m t\u0103ng n\u0103ng su\u1ea5t, gi\u00fap c\u00e2y \u0111\u1ebb nh\u00e1nh, \u0111\u1ed3ng th\u1eddi t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 r\u1ec5 ph\u00e1t tri\u1ec3n, \u0103n s\u00e2u trong \u0111\u1ea5t, gi\u00fap h\u1ea1n ch\u1ebf c\u00e2y b\u1ecb \u0111\u1ed5, g\u00e3y. Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh nh\u1eb1m th\u0103m d\u00f2 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 t\u1ed5 h\u1ee3p ph\u00e2n b\u00f3n NPK \u0111\u1ebfn sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n, n\u0103ng su\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e2y rau B\u00f2 khai. Trong s\u1ed1 3 th\u00ed nghi\u1ec7m v\u1ec1 c\u00e1c t\u1ed5 h\u1ee3p ph\u00e2n b\u00f3n \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u0111\u1ed1i v\u1edbi c\u00e2y rau B\u00f2 khai t\u1ea1i khu th\u1ef1c nghi\u1ec7m Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m – \u0110\u1ea1i h\u1ecdc Th\u00e1i Nguy\u00ean, k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c cho th\u1ea5y t\u1ed5 h\u1ee3p: b\u00f3n 10 t\u1ea5n ph\u00e2n chu\u1ed3ng + 100N + 60P2O5\u00a0+ 40K2O (10 t\u1ea5n ph\u00e2n chu\u1ed3ng, 217 kg \u0111\u1ea1m ur\u00ea, 375 kg supe l\u00e2n, 66,67 kg kali clorua\/ha) cho c\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t cao h\u01a1n so v\u1edbi th\u00ed nghi\u1ec7m b\u00f3n l\u00e2n v\u00e0 kali v\u1edbi m\u1ee9c x\u00e1c xu\u1ea5t P = 0,05, \u0111\u1ed9 tin c\u1eady l\u00e0 95%.<\/p>\n

T\u1eeb kh\u00f3a<\/em><\/strong>: C\u00e2y rau B\u00f2 khai, ph\u00e2n chu\u1ed3ng, ph\u00e2n l\u00e2n, t\u1ed5 h\u1ee3p ph\u00e2n NPK, n\u0103ng su\u1ea5t.<\/p>\n

 <\/p>\n

EFFECTS<\/strong> OF FERTILIZER COMBINATIONS FOR Erythropalum scandens <\/em>Blume IN THE YOUNG STAGE<\/strong><\/p>\n

Nguyen Chi Hieu<\/strong><\/p>\n

Thai Nguyen University of Agriculture and Forestry<\/em><\/p>\n

\u00a0<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

Fertilizer provides necessary nutrients for plant growth and development. Balancing the fertilizer ratio for plants increases productivity, suporting plants branch out and creating conditions for roots to grow and penetrate deep into the soil, also helping to limit tree falls. The experiment was conducted to explore the effects of NPK fertilizer combinations on growth, development, and yield of Bo Khai vegetable plants. Among the 3 fertilizer combination experiments conducted for Bo Khai vegetable plants at the experimental field at Thai Nguyen University of Agriculture and Forestry, the results figured ou that the combination: fertilizing 10 tons of manure\u00a0 + 100N +\u00a0 60P2O5\u00a0+\u00a0 40K2O (10 tons\u00a0 of manure, 217 kg of\u00a0 urea nitrogen,\u00a0 375 kg of superphosphate, 66.67 kg of potassium chloride\/ha) with probability level P = 0.05, 95% confidence level, for growth and productivity indicators higher than the phosphorus and potassium fertilization experiment.<\/p>\n

Keywords:<\/em><\/strong> Bo Khai vegetables, manure, phosphate fertilizer, NPK fertilizer combination, yield.<\/p>\n

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PH\u1ea2N \u1ee8NG C\u1ee6A M\u1ed8T S\u1ed0 LO\u00c0I C\u00c2Y NG\u1eacP M\u1eb6N V\u1edaI Y\u1ebeU T\u1ed0 M\u00d4I TR\u01af\u1edcNG KHU V\u01af\u0323C VEN BI\u1ec2N C\u1ea6N GI\u1edc, TH\u00c0NH PH\u1ed0 H\u1ed2 CH\u00cd MINH<\/h2>\n

\u00a0<\/strong><\/p>\n

L\u00ea Thanh Quang1, Ho\u00e0ng V\u0103n Th\u01a1i1, Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t1, Nguy\u1ec5n Kh\u1eafc \u0110i\u1ec7u1, \u0110inh Duy Tu\u1ea5n1, \u0110inh Th\u1ecb Ph\u01b0\u01a1ng Vy1, Th\u00e1i Th\u00e0nh L\u01b0\u1ee3m2, Phan V\u0103n Trung3, Hu\u1ef3nh \u0110\u1ee9c Ho\u00e0n3\u00a0v\u00e0 B\u00f9i Nguy\u1ec5n Th\u1ebf Ki\u1ec7t3<\/h3>\n

1 <\/em>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/em><\/p>\n

2<\/em>Tr\u01b0\u1eddng<\/em> \u0110\u1ea1i h\u1ecdc Ki\u00ean Giang<\/em><\/p>\n

3<\/em>Ban Qu\u1ea3n l\u00fd r\u1eebng ph\u00f2ng h\u1ed9 C\u1ea7n Gi\u1edd<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Th\u00e0nh ph\u1ea7n lo\u00e0i c\u00e2y, ph\u00e2n b\u1ed1 v\u00e0 t\u00ecnh tr\u1ea1ng s\u1ed1ng c\u1ee7a ch\u00fang thay \u0111\u1ed5i theo l\u01b0\u1ee3ng ph\u00f9 sa v\u00e0 \u0111\u1ed9 m\u1eb7n c\u1ee7a \u0111\u1ea5t v\u00e0 n\u01b0\u1edbc. K\u1ebft qu\u1ea3 c\u1ee7a s\u1ef1 thay \u0111\u1ed5i n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 thu h\u1eb9p khu ph\u00e2n b\u1ed1 c\u1ee7a nhi\u1ec1u lo\u00e0i c\u00e2y g\u1ed7. Nghi\u00ean c\u1ee9u n\u00e0y gi\u1edbi thi\u1ec7u \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u00f4i tr\u01b0\u1eddng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a nh\u1eefng lo\u00e0i c\u00e2y g\u1ed7 t\u1ea1i khu v\u1ef1c ven bi\u1ec3n C\u1ea7n Gi\u1edd thu\u1ed9c th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh. M\u1ee5c ti\u00eau c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y l\u00e0 ph\u00e2n t\u00edch ph\u1ea3n \u1ee9ng c\u1ee7a m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y g\u1ed7 \u0111\u1ed1i v\u1edbi \u0111\u1ed9 d\u00e0y c\u1ee7a l\u1edbp tr\u1ea7m t\u00edch, \u0111\u1ed9 s\u00e2u ng\u1eadp n\u01b0\u1edbc, th\u1eddi gian x\u1ea3 n\u01b0\u1edbc th\u1ea3i v\u00e0 \u0111\u1ed9 m\u1eb7n c\u1ee7a n\u01b0\u1edbc. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi 10 lo\u00e0i c\u00e2y r\u1eebng ng\u1eadp m\u1eb7n (c\u00e2y g\u1ed7). \u0110\u1ed9 d\u00e0y l\u1edbp tr\u1ea7m t\u00edch, \u0111\u1ed9 s\u00e2u ng\u1eadp n\u01b0\u1edbc, th\u1eddi gian x\u1ea3 n\u01b0\u1edbc th\u1ea3i v\u00e0 \u0111\u1ed9 m\u1eb7n c\u1ee7a n\u01b0\u1edbc \u0111\u01b0\u1ee3c ph\u00e2n chia t\u01b0\u01a1ng \u1ee9ng th\u00e0nh 5, 5, 6 v\u00e0 9 c\u1ea5p. \u1ede m\u1ed7i m\u1ee9c c\u1ee7a y\u1ebfu t\u1ed1 th\u00ed nghi\u1ec7m, m\u1ed7i lo\u00e0i c\u00e2y g\u1ed7 \u0111\u01b0\u1ee3c tr\u1ed3ng 50 c\u00e2y\/50 m2\u00a0v\u00e0 l\u1eb7p l\u1ea1i 3 l\u1ea7n. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng sinh tr\u01b0\u1edfng c\u1ee7a 10 qu\u1ea7n th\u1ec3 c\u00e2y g\u1ed7 c\u1ee7a r\u1eebng ng\u1eadp m\u1eb7n gia t\u0103ng theo s\u1ef1 gia t\u0103ng \u0111\u1ed9 d\u00e0y l\u1edbp tr\u1ea7m t\u00edch. Ch\u00fang s\u1ed1ng t\u1ed1t nh\u1ea5t \u1edf bi\u00ean \u0111\u1ed9 ng\u1eadp n\u01b0\u1edbc t\u1eeb 0,5 – 2,5 m. Sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y b\u1ecb suy gi\u1ea3m theo \u0111\u1ed9 d\u00e0i th\u1eddi gian x\u1ea3 n\u01b0\u1edbc th\u1ea3i. \u0110\u1ed9 m\u1eb7n t\u1ed1i \u01b0u \u0111\u1ed1i v\u1edbi B\u1ea7n chua, B\u1ea7n tr\u1eafng, D\u00e0 v\u00f4i, D\u1eeba l\u00e1, \u0110\u01b0ng, \u0110\u01b0\u1edbc, M\u1ea5m bi\u1ec3n, M\u1ea5m \u0111en, M\u1ea5m tr\u1eafng v\u00e0 V\u1eb9t t\u00e1ch t\u01b0\u01a1ng \u1ee9ng l\u00e0 15,0; 16,7; 19,2; 6,2; 18,7; 17,3; 22,0; 19,4; 19,8 v\u00e0 19,7\u2030.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>R\u1eebng ng\u1eadp m\u1eb7n, t\u1ef7 l\u1ec7 s\u1ed1ng, tr\u1ea7m t\u00edch, \u0111\u1ed9 s\u00e2u ng\u1eadp n\u01b0\u1edbc, \u0111\u1ed9 m\u1eb7n, h\u00e0m t\u01b0\u01a1ng quan.<\/p>\n

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RESPONSIBILITIES OF MANGROVE TREES SPECIES TO ENVIRONMENTAL CHANGE IN THE COASTAL AREA OF CAN GIO, HO CHI MINH CITY<\/strong><\/p>\n

Le<\/strong> Thanh Quang<\/strong>1<\/strong>, Hoang Van Thoi<\/strong>1<\/strong>, Kieu Tuan Dat<\/strong>1<\/strong>, Nguyen Khac Dieu<\/strong>1<\/strong>, Dinh Duy Tuan<\/strong>1<\/strong>,<\/strong><\/p>\n

Dinh Thi Phuog Vy<\/strong>1<\/strong>, Thai Thanh Luom<\/strong>2<\/strong>, Phan Van Trung<\/strong>3<\/strong>, Huynh Duc Hoan<\/strong>3 <\/strong>and Bui Nguyen The Kiet<\/strong>3<\/strong><\/p>\n

1 <\/em><\/strong>Forest Science Institute of South Vietnam (FSIS)<\/em><\/p>\n

2 <\/em><\/strong>Kien<\/em> Giang University<\/em><\/p>\n

3 <\/em><\/strong>Can Gio mangrove Protection Forest Management Board<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

Plant distributions, growth and development are strongly impacted by the environmental factors. In this study, we studied the responses of some mangrove tree species in the coastal areas in Can Gio, Ho Chi Minh City to the thickness of sediment.<\/p>\n

This study introduces the impact of environment on the growth of mangrove tree species in the coastal area of Can Gio in Ho Chi Minh City. In this study, we analyzed the response of some mangrove tree species to some environmental factors such as: the thickness of the sediment, the depth of inundation, the time of discharge of wastewater and the salinity of the water. The study was carried out on 10 mangrove tree species that are widely distributed in the coastal region…, Sediment thickness, depth of inundation, wastewater discharge time and water salinity were divided into 5, 5, 6 and 9 levels, respectively. At each level, each tree species was planted with 50 trees per 50m2\u00a0and repeated three times. Results showed that the growth of all of tenth mangrove populations of increases with the increase of sediment thickness and are well-developed at 0.5 to 2.5 m. in depth of inundation. The optimal salinity for the growth of Sonneratia caseolaris, Sonneratia alba, Ceriops tagal, Nypa fruticans, Rhizophora \u00a0mucronata, \u00a0Rhizophora \u00a0apiculata, \u00a0Avicennia \u00a0marina, \u00a0Avicennia \u00a0officinalis, \u00a0Avicennia \u00a0alba, Bruguiera paviflora <\/em>were 15.0; 16.7; 19.2; 6.2; 18.7; 17.3; 22.0; 19.4; 19.8 and 19.7\u2030, respectively.<\/p>\n

Keywords:<\/em><\/strong> Mangrove forest, survival rate of plantation of mangrove, sediments, depth of inundation, salinity, general linear model.<\/p>\n

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PH\u00c2N T\u00cdCH V\u00c0 \u0110\u00c1NH GI\u00c1 C\u00c1C QUY \u0110\u1ecaNH C\u1ee6A PH\u00c1P LU\u1eacT HI\u1ec6N H\u00c0NH V\u1ec0 CH\u1ec8 S\u1ed0 M\u00d4I TR\u01af\u1edcNG V\u00c0 CO2\u00a0R\u1eeaNG<\/h2>\n

\u00a0<\/strong><\/p>\n

Nguy\u1ec5n Ho\u00e0ng Ti\u1ec7p1, V\u00f5 \u0110\u1ea1i H\u1ea3i2, \u0110\u1eb7ng Th\u1ecbnh Tri\u1ec1u3<\/h3>\n

1<\/em>V\u0103n ph\u00f2ng ch\u1ee9ng ch\u1ec9 qu\u1ea3n l\u00fd r\u1eebng b\u1ec1n v\u1eefng<\/em><\/p>\n

2<\/em>Vi\u1ec7n<\/em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

3<\/em>Vi\u1ec7n<\/em> Nghi\u00ean c\u1ee9u L\u00e2m sinh<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

R\u1eebng v\u00e0 m\u00f4i tr\u01b0\u1eddng r\u1eebng c\u00f3 \u00fd ngh\u0129a v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong chi\u1ebfn l\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng, th\u00edch \u1ee9ng v\u1edbi bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu c\u1ee7a Vi\u1ec7t Nam. Trong th\u1eddi gian qua, Vi\u1ec7t Nam \u0111\u00e3 t\u1eebng b\u01b0\u1edbc x\u00e2y d\u1ef1ng v\u00e0 ban h\u00e0nh h\u1ec7 th\u1ed1ng c\u00e1c v\u0103n b\u1ea3n quy ph\u1ea1m ph\u00e1p lu\u1eadt v\u1ec1 m\u00f4i tr\u01b0\u1eddng r\u1eebng, trong \u0111\u00f3 c\u00f3 2 Lu\u1eadt, 4 Ngh\u1ecb \u0111\u1ecbnh c\u1ee7a Ch\u00ednh ph\u1ee7, 9 Quy\u1ebft \u0111\u1ecbnh c\u1ee7a Th\u1ee7 t\u01b0\u1edbng Ch\u00ednh ph\u1ee7, 3 Quy\u1ebft \u0111\u1ecbnh c\u1ee7a c\u00e1c b\u1ed9, ng\u00e0nh, 5 Th\u00f4ng t\u01b0 h\u01b0\u1edbng d\u1eabn. C\u00e1c v\u0103n b\u1ea3n quy ph\u1ea1m ph\u00e1p lu\u1eadt n\u00e0y \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u1ef1c ti\u1ebfp ho\u1eb7c gi\u00e1n ti\u1ebfp t\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u00f4i tr\u01b0\u1eddng, m\u00f4i tr\u01b0\u1eddng r\u1eebng, ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 CO2\u00a0r\u1eebng, g\u00f3p ph\u1ea7n t\u1ea1o h\u00e0nh lang ph\u00e1p l\u00fd cho vi\u1ec7c tri\u1ec3n khai c\u00e1c nhi\u1ec7m v\u1ee5 c\u00f3 li\u00ean quan trong th\u1ef1c ti\u1ec5n. Tuy nhi\u00ean, h\u1ec7 th\u1ed1ng c\u00e1c ch\u1ec9 s\u1ed1 \u0111\u1ec1 c\u1eadp c\u00f2n kh\u00e1 ph\u00e2n t\u00e1n v\u00e0 ch\u01b0a \u0111\u1ea7y \u0111\u1ee7, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 carbon v\u00e0 CO2\u00a0r\u1eebng, v\u00ec v\u1eady c\u1ea7n thi\u1ebft ph\u1ea3i r\u00e0 so\u00e1t v\u00e0 \u0111\u00e1nh gi\u00e1 l\u1ea1i, nghi\u00ean c\u1ee9u v\u00e0 t\u1ed5ng k\u1ebft th\u00eam kinh nghi\u1ec7m qu\u1ed1c t\u1ebf v\u00e0 th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t \u0111\u1ec3 ho\u00e0n thi\u1ec7n b\u1ed9 ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 CO2 r\u1eebng \u0111\u01b0a v\u00e0o \u00e1p d\u1ee5ng.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>M\u00f4i tr\u01b0\u1eddng r\u1eebng, ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng r\u1eebng, ch\u1ec9 s\u1ed1 carbon\/CO2 r\u1eebng, v\u0103n b\u1ea3n quy ph\u1ea1m ph\u00e1p lu\u1eadt<\/p>\n

 <\/p>\n

ANALYSIS AND ASSESSMENT OF THE CURRENT LEGAL DOCUMENTS ON FOREST ENVIRONMENTAL AND CO<\/strong>2<\/strong>\u00a0<\/strong>INDICATORS<\/strong><\/p>\n

Nguyen Hoang Tiep<\/strong>1<\/strong>, Vo Dai Hai<\/strong>2<\/strong>, Dang Thinh Trieu<\/strong>3<\/strong><\/p>\n

1<\/em>Vietnam Forest Certification Office<\/em><\/p>\n

2 <\/em>Vietnamese Academy of Forest Sciences<\/em><\/p>\n

3 <\/em>Silviculture Research Institute<\/em><\/p>\n

SUMMARY<\/strong><\/p>\n

Forests and the forest environment have significance and an important role in Vietnam’s sustainable development strategy and adaptation to climate change. In recent times, Vietnam has been developed a bunch of legal documents related to forest environment, including 2 Laws, 4 Government Decrees, 9 Decisions of the Prime Minister, 3 Decisions of ministries and 5 Guidance circulars. These legal documents have directly or indirectly mentioned environmental issues, forest environment, environmental indicators and forest CO2\u00a0indicator, contributing to creating a legal background for the implementation of relevant activities. However, the indicators are scattered and incomplete, especially forest carbon and CO2\u00a0indicators, therefore, it is necessary to review these indicators as well as learning from international experience and from field practice to develop the environmental and forest CO2\u00a0indicators for application.<\/p>\n

Keywords:<\/em><\/strong> Forest environment, forest environment indicators, forest carbon indicators\/CO2 indicators, legal document.<\/p>\n

 <\/p>\n

 <\/p>\n

S\u1ef0 PH\u00c2N B\u1ed0 KH\u00d4NG \u0110\u1ed2NG NH\u1ea4T<\/h2>\n

C<\/strong>\u1ee6A<\/strong> TU<\/strong>Y\u1ebeN<\/strong> TR\u00d9NG<\/strong> Ca<\/em><\/strong>eno<\/em><\/strong>rhabditis<\/em><\/strong> brenneri<\/em><\/strong><\/p>\n

\u1ede V\u01af\u1edcN QU\u1ed0C GIA C\u00c1T TI\u00caN V\u00c0 C\u00daC PH\u01af\u01a0NG<\/h2>\n

\u00a0<\/strong><\/p>\n

L\u00ea Th\u1ecd S\u01a1n, B\u00f9i Th\u1ecb Mai H\u01b0\u01a1ng, H\u00e0 B\u00edch H\u1ed3ng, Nguy\u1ec5n Th\u1ecb Thu<\/h3>\n

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

\u00a0<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

Sinh v\u1eadt s\u1ed1ng trong \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau tr\u1ea3i qua nhi\u1ec1u th\u1ebf h\u1ec7 th\u01b0\u1eddng d\u1eabn t\u1edbi c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m ti\u1ebfn h\u00f3a kh\u00e1c nhau. S\u1ef1 ti\u1ebfn h\u00f3a \u0111\u00f3 \u0111\u1ea1t tr\u1ea1ng th\u00e1i cao nh\u1ea5t khi \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef th\u00e0nh m\u00e3 di truy\u1ec1n. Nghi\u00ean c\u1ee9u n\u00e0y tr\u00ecnh b\u00e0y quy tr\u00ecnh v\u00e0 k\u1ebft qu\u1ea3 ph\u00e2n l\u1eadp, nu\u00f4i c\u1ea5y v\u00e0 m\u00f4 t\u1ea3 \u0111\u1eb7c \u0111i\u1ec3m ph\u00e2n t\u1eed c\u1ee7a tuy\u1ebfn tr\u00f9ng m\u00f4 h\u00ecnh Caenorhabditis brenneri <\/em>c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb V\u01b0\u1eddn Qu\u1ed1c gia C\u00e1t Ti\u00ean v\u00e0 C\u00fac Ph\u01b0\u01a1ng c\u1ee7a Vi\u1ec7t Nam. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e3 ph\u00e2n l\u1eadp, nu\u00f4i c\u1ea5y nh\u00e2n t\u1ea1o v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 19 ch\u1ee7ng C. brenneri <\/em>t\u1ef1 nhi\u00ean thu t\u1eeb V\u01b0\u1eddn Qu\u1ed1c gia C\u00e1t Ti\u00ean v\u00e0 01 ch\u1ee7ng t\u1eeb V\u01b0\u1eddn Qu\u1ed1c gia C\u00fac Ph\u01b0\u01a1ng. \u0110\u1ed9 t\u01b0\u01a1ng \u0111\u1ed3ng ph\u00e2n t\u1eed c\u1ee7a tr\u00ecnh t\u1ef1 18S rDNA gi\u1eefa c\u00e1c ch\u1ee7ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t v\u00e0 dao \u0111\u1ed9ng t\u1eeb 97,95% \u0111\u1ebfn 100% so v\u1edbi \u0111\u1ed1i ch\u1ee9ng C. brenneri <\/em>CB5161. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y ti\u1ec1m n\u0103ng \u0111a d\u1ea1ng cao c\u1ee7a lo\u00e0i tuy\u1ebfn tr\u00f9ng C. brenneri <\/em>\u1edf nh\u1eefng h\u1ec7 sinh th\u00e1i thu\u1ed9c l\u00e3nh th\u1ed5 Vi\u1ec7t Nam. Ti\u1ebfp theo, ch\u00fang t\u00f4i h\u01b0\u1edbng t\u1edbi s\u1eed d\u1ee5ng t\u1eadp h\u1ee3p tuy\u1ebfn tr\u00f9ng C. brenneri <\/em>t\u1eeb hai V\u01b0\u1eddn Qu\u1ed1c gia \u0111\u1ec3 nghi\u00ean c\u1ee9u m\u1ed1i quan h\u1ec7 c\u1ea5u tr\u00fac gen v\u00e0 t\u00ednh \u0111a h\u00ecnh t\u00ednh tr\u1ea1ng n\u00f3i chung.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Caenorhabditis elegans<\/em>, \u0111a d\u1ea1ng tuy\u1ebfn tr\u00f9ng, DNA barcoding, ph\u00e2n l\u1eadp, nu\u00f4i c\u1ea5y<\/p>\n

 <\/p>\n

NEMATODE ISOLATES OF Caenorhabditis brenneri <\/em>YIELDED MORE IN CAT TIEN BUT LESS IN CUC PHUONG NATIONAL PARKS<\/strong><\/p>\n

Le<\/strong> Tho<\/strong> Son, Bui Thi Mai Huong, Ha Bich Hong, Nguyen Thi Thu<\/strong><\/p>\n

Vietnam National University of Forestry<\/em><\/p>\n

\u00a0<\/em><\/p>\n

ABSTRACT<\/strong><\/p>\n

Organisms within subpopulations of the same species may be diverse in respect of any traits because they have life histories under different conditions. We report the research of the diversity of Caenorhabditis brenneri<\/em>: the isolation of the nematodes from decomposing vegetation collected in Cat Tien, and Cuc Phuong National Parks of Vietnam, molecular classification with DNA barcoding, and cultivation on artificial growth media of the wild-type C. brenneri<\/em>. We successfully isolated, and cultured 20 wild-type strains of C. brenneri <\/em>with highly conserved 18S rDNA (99.76% to 100%) to a control species C. brenneri <\/em>CB5161, and found a likely high diversity amongst them. This result indicated the high potential diversity of the wild-type C. brenneri <\/em>in Vietnam. We would extend the research of the diversity of C. brenneri <\/em>and use this species as a model organism in biological studies in the future. We will use the strains of C. brenneri <\/em>in this research to study the key genetic factors regulating differences within C. brenneri <\/em>strains.<\/p>\n

Keywords:<\/em><\/strong> Caenorhabditis elegans<\/em>, cultivation, diversity of nematodes, DNA barcoding, isolation<\/p>\n

 <\/p>\n

 <\/p>\n

\u0110\u00c1NH GI\u00c1 HI\u1ec6U L\u1ef0C \u1ee8C CH\u1ebe<\/h2>\n

C\u1ee6A<\/strong> CH\u1ee6NG<\/strong> VI KHU\u1ea8N \u0110\u1ed0I KH\u00c1NG N\u1ea4M H\u1ea0I G\u1ed6<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Nguy\u1ec5n H\u1eefu Minh1, B\u00f9i Th\u1ecb Th\u1ee7y2, \u0110\u1ed7 Bi\u00ean C\u01b0\u01a1ng3, Qu\u00e1ch \u0110\u00ecnh Huy2<\/h3>\n

1 <\/em>Vi\u1ec7n<\/em> Ki\u1ec3m \u0111\u1ecbnh Qu\u1ed1c gia V\u1eafc xin v\u00e0 Sinh ph\u1ea9m y t\u1ebf<\/em><\/p>\n

2 <\/em>Vi\u1ec7n<\/em> Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

3 <\/em>Tr\u01b0\u1eddng<\/em> H\u00f3a v\u00e0 Khoa h\u1ecdc s\u1ef1 s\u1ed1ng, \u0110\u1ea1i h\u1ecdc B\u00e1ch khoa H\u00e0 N\u1ed9i<\/em><\/p>\n

\u00a0<\/em><\/p>\n

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

X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a ch\u1ee7ng vi khu\u1ea9n \u0111\u1ed1i kh\u00e1ng n\u1ea5m h\u1ea1i g\u1ed7 l\u00e0 c\u00f4ng \u0111o\u1ea1n c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang. Trong nghi\u00ean c\u1ee9u n\u00e0y, ph\u01b0\u01a1ng ph\u00e1p c\u1ea5y \u0111\u00f4i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ee5c l\u1ed7 th\u1ea1ch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u l\u1ef1c \u1ee9c ch\u1ebf c\u1ee7a 03 ch\u1ee7ng vi khu\u1ea9n ph\u00e2n l\u1eadp \u0111\u01b0\u1ee3c t\u1ea1i \u0111\u1ecba b\u00e0n t\u1ec9nh L\u1ea1ng S\u01a1n g\u1ed3m Chitinophaga varians<\/em>, Bacillus subtilis <\/em>v\u00e0 Bacillus amyloliquefaciens <\/em>\u0111\u1ed1i v\u1edbi 04 lo\u1ea1i n\u1ea5m h\u1ea1i g\u1ed7 ph\u1ed5 bi\u1ebfn, \u0111\u1ed3ng th\u1eddi kh\u1ea3o s\u00e1t s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nu\u00f4i c\u1ea5y l\u00ean ho\u1ea1t t\u00ednh \u0111\u1ed1i kh\u00e1ng c\u1ee7a d\u1ecbch ngo\u1ea1i b\u00e0o thu \u0111\u01b0\u1ee3c. K\u1ebft qu\u1ea3 cho th\u1ea5y c\u1ea3 3 ch\u1ee7ng vi khu\u1ea9n kh\u1ea3o s\u00e1t \u0111\u1ec1u c\u00f3 ho\u1ea1t t\u00ednh \u0111\u1ed1i kh\u00e1ng m\u1ea1nh tr\u00ean c\u00e1c n\u1ea5m Aspergillus niger <\/em>v\u00e0 Aureobasidium pullulans<\/em>, ho\u1ea1t t\u00ednh \u0111\u1ed1i kh\u00e1ng y\u1ebfu tr\u00ean c\u00e1c n\u1ea5m Lasiodiplodia theobromae <\/em>v\u00e0 Trichoderma atroviride. <\/em>T\u1eeb th\u1eed nghi\u1ec7m \u0111\u1ee5c l\u1ed7 th\u1ea1ch, s\u01a1 b\u1ed9 \u0111\u00e1nh gi\u00e1 Bacillus amyloliquefaciens <\/em>l\u00e0 ch\u1ee7ng khu\u1ea9n gi\u00e0u ti\u1ec1m n\u0103ng nh\u1ea5t \u0111\u1ec3 ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng, trong khi Chitinophaga varians <\/em>l\u00e0 m\u1ed9t ph\u00e1t hi\u1ec7n m\u1edbi d\u01b0\u1edbi vai tr\u00f2 t\u00e1c nh\u00e2n vi khu\u1ea9n \u0111\u1ed1i kh\u00e1ng n\u1ea5m h\u1ea1i g\u1ed7. K\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t c\u0169ng cho th\u1ea5y vi\u1ec7c b\u1ed5 sung ion s\u1eaft (II) v\u00e0o m\u00f4i tr\u01b0\u1eddng LB l\u00e0m gi\u1ea3m ho\u1ea1t t\u00ednh \u0111\u1ed1i kh\u00e1ng c\u1ee7a d\u1ecbch ngo\u1ea1i b\u00e0o. Th\u1eddi gian nu\u00f4i c\u1ea5y t\u1ed1i \u01b0u \u0111\u1ec3 thu d\u1ecbch ngo\u1ea1i b\u00e0o \u0111\u1ed1i kh\u00e1ng Aspergillus niger <\/em>c\u1ee7a 03 ch\u1ee7ng vi khu\u1ea9n l\u00e0 3 ng\u00e0y \u0111\u1ed1i v\u1edbi Chitinophaga varians<\/em>, 1 ng\u00e0y \u0111\u1ed1i v\u1edbi Bacillus subtilis <\/em>v\u00e0 1 ng\u00e0y \u0111\u1ed1i v\u1edbi Bacillus amyloliquefaciens<\/em>.<\/p>\n

T\u1eeb kh\u00f3a: <\/em><\/strong>Bacillus<\/em> amyloliquefaciens<\/em>, Chitinophaga varians<\/em>, n\u1ea5m h\u1ea1i g\u1ed7, vi khu\u1ea9n \u0111\u1ed1i kh\u00e1ng n\u1ea5m<\/p>\n

 <\/p>\n

EVALUATING THE INHIBITORY EFFICACY OF BACTERIA STRAINS AGAINST WOOD PATHOGENIC FUNGI<\/strong><\/p>\n

Nguyen Huu Minh<\/strong>1<\/strong>, Bui Thi Thuy<\/strong>2<\/strong>, Do Bien Cuong<\/strong>3<\/strong>, Quach Dinh Huy<\/strong>2<\/strong><\/p>\n

1 <\/em>The National Institute for Control of Vaccines and Biologicals<\/em><\/p>\n

2 <\/em>Research Institute of Forest Industry, Vietnamese Academy of Forest Sciences<\/em><\/p>\n

3 <\/em>School of Chemistry and Life Sciences, Hanoi University of Science and Technology<\/em><\/p>\n

Characterization of bacterial strains against wood pathogenic fungi is a critical step to evaluate their potential. In this study, the bi-culture and agar diffusion methods were used to evaluate the inhibitory efficacy of 03 bacterial strains isolated in Lang Son province including Chitinophaga varians<\/em>, Bacillus subtilis <\/em>and Bacillus amyloliquefaciens <\/em>against 04 common species of wood-damaging fungi and the influence of some culture conditions on the broth-derived extracellular fluid\u2019s antagonistic activity were also investigated. The results showed that all of 03 bacterial strains had strong antagonistic activity against the fungi Aspergillus niger <\/em>and Aureobasidium pullulans<\/em>, and weak antagonistic activity against the fungi Lasiodiplodia theobromae <\/em>and Trichoderma atroviride<\/em>. Based on agar diffusion test, Bacillus amyloliquefaciens <\/em>was preliminarily assessed as the most potential bacterial strain for further research and application, whereas Chitinophaga varians <\/em>was a new discovery as the role of biocontrol bacterial agent against wood-damaging fungi. The results also showed that adding irons (II) to LB medium reduced the extracellular fluid\u2019s antagonistic activity. The optimal culture duration to obtain antifungal extracellular fluid against Aspergillus niger <\/em>of Chitinophaga varians, Bacillus subtilis, Bacillus amyloliquefaciens <\/em>were 3 days, 1 day and 1 day, respectively.<\/p>\n

Keywords:<\/em><\/strong> Antifungal bacteria, Bacillus amyloliquefaciens, Chitinophaga varians<\/em>, wood-damaging fungi<\/p>\n","protected":false},"excerpt":{"rendered":"

Vietnam Journal of Forest Science Number 1-2024 \u00a0 1. New species, Impatiens lobulifera (Balsaminaceae) in the flora of Vietnam B\u1ed5 sung lo\u00e0i Impatiens lobulifera (h\u1ecd Balsaminaceae) cho h\u1ec7 th\u1ef1c v\u1eadt Vi\u1ec7t Nam Quan Ngoc Chu L.V. Averyanov Hai Dai Vo Dang Hai Nguyen Ha Van Dang Yen Thi Nguyen Ly Van Nguyen Cuong Huu Nguyen […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/46"}],"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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":0,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/46\/revisions"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}