{"id":143,"date":"2024-05-20T00:09:30","date_gmt":"2024-05-19T17:09:30","guid":{"rendered":"http:\/\/envafs.dungnq.local\/2005\/06\/30\/species-yielding-wood-for-paper-raw-material-composite-board-and-domestic-utensils\/"},"modified":"2024-05-17T10:36:04","modified_gmt":"2024-05-17T03:36:04","slug":"vietnam-journal-of-forest-science-number-2-2024","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2024\/05\/vietnam-journal-of-forest-science-number-2-2024\/","title":{"rendered":"Vietnam Journal of Forest Science Number 2-2024"},"content":{"rendered":"<h2><img decoding=\"async\" loading=\"lazy\" class=\"size-large aligncenter\" src=\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2024\/05\/Tap-chi2-2024.jpg\" width=\"662\" height=\"782\" \/><\/h2>\n<h2>Vietnam Journal of Forest Science Number 2-2024<\/h2>\n<table>\n<tbody>\n<tr>\n<td width=\"36\">1.<\/td>\n<td width=\"194\">Nghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i G\u1ee5 lau (<em>Sindora<\/em><em> tonkinensis <\/em>A. Chev. Ex K.<\/p>\n<p>&amp; S. S. Larsen) t\u1ea1i m\u1ed9t s\u1ed1 t\u1ec9nh duy\u00ean h\u1ea3i mi\u1ec1n Trung<\/td>\n<td width=\"211\">Research on selection of plus trees of <em>Sindora tonkinensis<\/em><\/p>\n<p>A. Chev. Ex K. &amp; S. S. Larsen in several Central Coast provinces<\/td>\n<td width=\"173\">V\u0169 \u0110\u1ee9c B\u00ecnh Nguy\u1ec5n H\u1ea3i Th\u00e0nh L\u00ea C\u00f4ng \u0110\u1ecbnh<\/p>\n<p>L\u00ea Xu\u00e2n To\u00e0n Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh<\/p>\n<p>Nguy\u1ec5n Th\u1ecb Thanh Nga Ho\u00e0ng V\u0103n Tu\u1ea5n Nguy\u1ec5n Ti\u1ebfn Linh Nguy\u1ec5n V\u0103n L\u1ee3i<\/td>\n<td width=\"48\">3<\/td>\n<\/tr>\n<tr>\n<td width=\"36\">2.<\/td>\n<td width=\"194\">Nh\u00e2n gi\u1ed1ng \u0111a t\u1eed tr\u00e0 bidoup (<em>Polyspora<\/em><em> bidoupensis <\/em>(Gagnep.) Orel, Peter G.Wilson, Curry &amp; Luu) b\u1eb1ng gi\u00e2m hom<\/td>\n<td width=\"211\">The propagation of <em>Polyspora bidoupensis <\/em>(Gagnep.) Orel, Peter G.Wilson, Curry &amp;<\/p>\n<p>Luu by cutting<span style=\"text-decoration: line-through;\">s<\/span> method<\/td>\n<td width=\"173\">L\u00ea H\u1ed3ng \u00c9n<\/p>\n<p>\u0110\u1ed7 V\u0103n D\u01b0\u01a1ng Nguy\u1ec5n V\u0103n Ph\u00fac L\u00ea Th\u1ecb Th\u00fay H\u00f2a Nguy\u1ec5n Ph\u1ea1m \u0110o\u00e0n Nguy\u1ec5n B\u00e1 Trung<\/p>\n<p>Tr\u01b0\u01a1ng Quang C\u01b0\u1eddng<\/td>\n<td width=\"48\">13<\/td>\n<\/tr>\n<tr>\n<td width=\"36\">3.<\/td>\n<td width=\"194\">K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng v\u00f4 t\u00ednh c\u00e2y M\u00f9 u (<em>Calophyllum<\/em><em> inophyllum <\/em>L.) b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom<\/td>\n<td width=\"211\">Results of research for asexual propagation of <em>Calophyllum inophyllum <\/em>by cuttings<\/td>\n<td width=\"173\">Nguy\u1ec5n Tr\u1ecdng T\u00e0i Tr\u1ea7n H\u1eefu Bi\u1ec3n<\/p>\n<p>\u0110\u1ed7 Th\u1ecb Ng\u1ecdc H\u00e0 Ph\u00f9ng V\u0103n T\u1ec9nh Nguy\u1ec5n Th\u1ecb Hi\u1ebfu<\/td>\n<td width=\"48\">23<\/td>\n<\/tr>\n<tr>\n<td width=\"36\">4.<\/td>\n<td width=\"194\">Nghi\u00ean c\u1ee9u \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd h\u1ea1t gi\u1ed1ng v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u, ch\u1ebf \u0111\u1ed9 che s\u00e1ng<\/p>\n<p>\u0111\u1ebfn sinh tr\u01b0\u1edfng, ph\u00e1t tri\u1ec3n c\u1ee7a rau Ng\u00f3t r\u1eebng (<em>Melientha<\/em><em> suavis <\/em>Pierre) t\u1ea1i huy\u1ec7n Nguy\u00ean B\u00ecnh, t\u1ec9nh Cao B\u1eb1ng<\/td>\n<td width=\"211\">Research on physiological characteristics of seed and influence of gourd ingredients, covering regime to the growth, evelopment of plants <em>Melientha suavis <\/em>Pierre in Nguyen Binh district, Cao Bang province<\/td>\n<td width=\"173\">Phan Th\u1ecb Luy\u1ebfn T\u1ea1 Nh\u1eadt V\u01b0\u01a1ng Di\u1ec7p Xu\u00e2n Tu\u1ea5n<\/td>\n<td width=\"48\">30<\/td>\n<\/tr>\n<tr>\n<td width=\"36\">5.<\/td>\n<td width=\"194\">\u0110a d\u1ea1ng th\u00e0nh ph\u1ea7n lo\u00e0i<\/p>\n<p>v\u00e0 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c Th\u00e1i s\u1eed d\u1ee5ng t\u1ea1i x\u00e3 Chi\u1ec1ng Mai, huy\u1ec7n Mai S\u01a1n,<\/p>\n<p>t\u1ec9nh S\u01a1n La<\/td>\n<td width=\"211\">Species composition and utilization value of medicinal plants used by the Thai ethnic community in Chieng Mai commune, Mai Son district, Son La province<\/td>\n<td width=\"173\">Ph\u1ea1m \u0110\u1ee9c Th\u1ecbnh Nguy\u1ec5n Ti\u1ebfn Ch\u00ednh V\u0169 Th\u1ecb Li\u00ean Nguy\u1ec5n Th\u00e0nh S\u01a1n<\/td>\n<td width=\"48\">39<\/td>\n<\/tr>\n<tr>\n<td width=\"36\">6.<\/td>\n<td width=\"194\">\u0110a d\u1ea1ng th\u1ef1c v\u1eadt t\u1ea1i c\u00e1c khu r\u1eebng \u0111\u1eb7c d\u1ee5ng t\u1ec9nh Qu\u1ea3ng Nam<\/td>\n<td width=\"211\">Plant diversity in special use forests, Quang Nam province<\/td>\n<td width=\"173\">Ph\u1ea1m Th\u1ecb Kim Thoa Nguy\u1ec5n V\u0103n Hi\u1ec7u Nguy\u1ec5n Th\u1ecb Thu H\u1eb1ng Nguy\u1ec5n H\u1ea3i \u0110\u0103ng<\/p>\n<p>V\u00f5 \u0110\u1ea1i H\u1ea3i<\/p>\n<p>Nguy\u1ec5n H\u1eefu C\u01b0\u1eddng<\/td>\n<td width=\"48\">48<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"40\">7.<\/td>\n<td width=\"187\">Th\u1ef1c tr\u1ea1ng khai th\u00e1c v\u00e0 s\u1eed d\u1ee5ng l\u00e2m s\u1ea3n ngo\u00e0i g\u1ed7 t\u1ea1i \u0111\u1ea3o H\u00f2n Lao, C\u00f9 Lao Ch\u00e0m<\/td>\n<td width=\"208\">Current status of harvest and use of non-timber forest products in Hon Lao island, Cu Lao Cham<\/td>\n<td width=\"180\">Nguy\u1ec5n H\u1ea3i \u0110\u0103ng V\u00f5 \u0110\u1ea1i H\u1ea3i<\/p>\n<p>Nguy\u1ec5n H\u1eefu C\u01b0\u1eddng<\/td>\n<td width=\"46\">60<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">8.<\/td>\n<td width=\"187\">Nghi\u00ean c\u1ee9u \u0111\u1eb7c \u0111i\u1ec3m qu\u1ea7n x\u00e3 th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 ph\u00e1t tri\u1ec3n tr\u00ean d\u1ea1ng \u0111\u1ea5t c\u00e1t ven bi\u1ec3n t\u1ec9nh Tr\u00e0 Vinh<\/td>\n<td width=\"208\">Research on characteristics of woody plant communities developing on coastal sandy lands of Tra Vinh province<\/td>\n<td width=\"180\">Ho\u00e0ng V\u0103n Th\u01a1i L\u00ea Thanh Quang Nguy\u1ec5n Kh\u1eafc \u0110i\u1ec7u<\/p>\n<p>\u0110inh Th\u1ecb Ph\u01b0\u01a1ng Vy \u0110inh Duy Tu\u1ea5n<\/td>\n<td width=\"46\">70<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">9.<\/td>\n<td width=\"187\">\u0110\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ea3nh v\u1ec7 tinh Sentinel 2a<\/p>\n<p>v\u00e0 planetscope trong ph\u00e2n lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia T\u00e0 \u0110\u00f9ng, \u0110\u1eafk N\u00f4ng, Vi\u1ec7t Nam<\/td>\n<td width=\"208\">Evaluating the performance of sentinel 2a and planetscope satellite imaging systems<\/p>\n<p>in forest cover classification at Ta Dung National Park, Dak Nong, Vietnam<\/td>\n<td width=\"180\">Phan Th\u1ecb H\u1eb1ng<\/p>\n<p>Nguy\u1ec5n Th\u1ecb Thanh H\u01b0\u01a1ng<\/td>\n<td width=\"46\">84<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">10.<\/td>\n<td width=\"187\">\u0110\u00e1nh gi\u00e1 ti\u1ec1m n\u0103ng m\u1edf r\u1ed9ng ngu\u1ed3n thu chi tr\u1ea3 d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng trong ho\u1ea1t \u0111\u1ed9ng kinh doanh du l\u1ecbch sinh th\u00e1i v\u00e0 nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n t\u1ea1i t\u1ec9nh S\u01a1n La<\/td>\n<td width=\"208\">Assessment of the potential to expand payments for forest environmental services from ecotourism and aquaculture in Son La province<\/td>\n<td width=\"180\">Tr\u1ea7n Th\u1ecb Thu H\u00e0<\/td>\n<td width=\"46\">98<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">11.<\/td>\n<td width=\"187\">Kinh nghi\u1ec7m c\u1ee7a th\u1ebf gi\u1edbi v\u1ec1 ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng r\u1eebng<\/td>\n<td width=\"208\">International experience on forest environment indicators<\/td>\n<td width=\"180\">Nguy\u1ec5n Ho\u00e0ng Ti\u1ec7p V\u00f5 \u0110\u1ea1i H\u1ea3i<\/p>\n<p>Nguy\u1ec5n Duy B\u00ecnh<\/td>\n<td width=\"46\">107<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">12.<\/td>\n<td width=\"187\">Nghi\u00ean c\u1ee9u nh\u00e2n sinh kh\u1ed1i vi khu\u1ea9n <em>Chitinophaga varians, Bacillus velezensis <\/em>v\u00e0 <em>B. valismortis<\/em><\/td>\n<td width=\"208\">Biomass production of <em>Chitinophaga varians, Bacillus velezensis <\/em>and<\/p>\n<p><em>B. valismortis<\/em><\/td>\n<td width=\"180\">Qu\u00e1ch \u0110\u00ecnh Huy B\u00f9i Th\u1ecb Thu\u1ef7 Ho\u00e0ng Trung Hi\u1ebfu Ho\u00e0ng Th\u1ecb T\u00e1m Nguy\u1ec5n Th\u1ecb H\u1eb1ng<\/p>\n<p>\u0110o\u00e0n Th\u1ecb B\u00edch Ng\u1ecdc<\/td>\n<td width=\"46\">120<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">13.<\/td>\n<td width=\"187\">Nghi\u00ean c\u1ee9u ph\u00e2n v\u00f9ng nguy c\u01a1 ch\u00e1y r\u1eebng t\u1ea1i t\u1ec9nh Th\u00e1i Nguy\u00ean<\/td>\n<td width=\"208\">Study on forest fire risk zonation in Thai Nguyen province<\/td>\n<td width=\"180\">Nguy\u1ec5n \u0110\u0103ng C\u01b0\u1eddng Nguy\u1ec5n Tu\u1ea5n H\u00f9ng Nguy\u1ec5n C\u00f4ng Hoan<\/td>\n<td width=\"46\">127<\/td>\n<\/tr>\n<tr>\n<td width=\"40\">14.<\/td>\n<td width=\"187\">Ph\u00e2n t\u00edch ngu\u1ed3n cung<\/p>\n<p>g\u1ed7 nguy\u00ean li\u1ec7u trong n\u01b0\u1edbc ph\u1ee5c v\u1ee5 c\u00f4ng nghi\u1ec7p<\/p>\n<p>ch\u1ebf bi\u1ebfn g\u1ed7 giai \u0111o\u1ea1n 2011 &#8211; 2020<\/td>\n<td width=\"208\">Analysis of domestic supply of wood materials for wood processing industry in the period of 2011 &#8211; 2020<\/td>\n<td width=\"180\">Tr\u1ea7n Thanh Cao Ho\u00e0ng Li\u00ean S\u01a1n<\/td>\n<td width=\"46\">138<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>NGHI\u00caN C\u1ee8U TUY\u1ec2N CH\u1eccN C\u00c2Y TR\u1ed8I<\/h2>\n<p><strong>G\u1ee4 LAU (Sindora tonkinensis A. Chev. Ex K. &amp; S. S. Larsen) T\u1ea0I M\u1ed8T S\u1ed0 T\u1ec8NH DUY\u00caN H\u1ea2I MI\u1ec0N TRUNG<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>V\u0169 \u0110\u1ee9c B\u00ecnh1, Nguy\u1ec5n H\u1ea3i Th\u00e0nh1, L\u00ea C\u00f4ng \u0110\u1ecbnh1,<\/h3>\n<p><strong>L\u00ea Xu\u00e2n To\u00e0n1, Ph\u1ea1m Xu\u00e2n \u0110\u1ec9nh1, Nguy\u1ec5n Th\u1ecb Thanh Nga1, Ho\u00e0ng V\u0103n Tu\u1ea5n1, Nguy\u1ec5n Ti\u1ebfn Linh2, Nguy\u1ec5n V\u0103n L\u1ee3i3\u00a0<\/strong><em>1<\/em><em>Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung B\u1ed9<\/em><\/p>\n<p><em>2<\/em><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>3<\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m, \u0110\u1ea1i h\u1ecdc Hu\u1ebf<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m 2022 &#8211; 2023 nh\u1eb1m ch\u1ecdn l\u1ecdc \u0111\u01b0\u1ee3c c\u00e2y tr\u1ed9i G\u1ee5 lau c\u00f3 n\u0103ng su\u1ea5t g\u1ed7 cao v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng th\u00e2n c\u00e2y t\u1ed1t ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng g\u1ed7 l\u1edbn t\u1ea1i m\u1ed9t s\u1ed1 t\u1ec9nh duy\u00ean h\u1ea3i mi\u1ec1n Trung. K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra t\u1ea1i 5 t\u1ec9nh mi\u1ec1n Trung, th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p cho \u0111i\u1ec3m theo c\u00e1c ch\u1ec9 ti\u00eau sinh tr\u01b0\u1edfng, \u0111\u1ed9 th\u1eb3ng th\u00e2n, \u0111\u1ed9 nh\u1ecf c\u00e0nh v\u00e0 s\u1ee9c kh\u1ecfe c\u00e2y, \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c 78 c\u00e2y tr\u1ed9i G\u1ee5 lau t\u1eeb 134 c\u00e2y tr\u1ed9i d\u1ef1 tuy\u1ec3n, trong \u0111\u00f3: xu\u1ea5t x\u1ee9 H\u00e0 T\u0129nh 12 c\u00e2y, Qu\u1ea3ng B\u00ecnh 25 c\u00e2y, Qu\u1ea3ng Tr\u1ecb 15 c\u00e2y, Th\u1eeba Thi\u00ean Hu\u1ebf 10 c\u00e2y v\u00e0 Qu\u1ea3ng Nam 16 c\u00e2y. C\u00e1c c\u00e2y tr\u1ed9i \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc \u1edf 5 t\u1ec9nh \u0111\u1ec1u c\u00f3 sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n t\u1ed1t, v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c dao \u0111\u1ed9ng t\u1eeb 22,3 &#8211; 76,4 cm, chi\u1ec1u cao dao \u0111\u1ed9ng t\u1eeb 15 &#8211; 30 m, chi\u1ec1u cao d\u01b0\u1edbi c\u00e0nh l\u1edbn, \u0111\u1ea1t t\u1eeb 8 &#8211; 21 m, chi\u1ebfm t\u1eeb 50,0 &#8211; 78,9% so v\u1edbi chi\u1ec1u cao v\u00fat ng\u1ecdn, \u0111\u01b0\u1eddng k\u00ednh t\u00e1n dao \u0111\u1ed9ng t\u1eeb 7,5 &#8211; 16,0 m. C\u00e1c c\u00e2y tr\u1ed9i c\u00f3 t\u00f4\u0309ng \u0111i\u1ec3m ch\u1ea5t l\u01b0\u1ee3ng th\u00e2n c\u00e2y \u0111\u1ec1u \u0111\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i cao, t\u1eeb 13 &#8211; 15 \u0111i\u1ec3m\/c\u00e2y, trung b\u00ecnh \u0111\u1ea1t 14,6 \u0111i\u1ec3m\/c\u00e2y. C\u00e1c c\u00e2y tr\u1ed9i G\u1ee5 lau \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc \u0111\u00e3 \u0111\u01b0\u1ee3c thu h\u00e1i qu\u1ea3, h\u1ea1t \u0111\u1ec3 nh\u00e2n gi\u1ed1ng x\u00e2y d\u1ef1ng v\u01b0\u1eddn s\u01b0u t\u1eadp k\u1ebft h\u1ee3p kh\u1ea3o nghi\u1ec7m gi\u1ed1ng v\u00e0o cu\u1ed1i n\u0103m 2024, g\u00f3p ph\u1ea7n khai th\u00e1c v\u00e0 ph\u00e1t tri\u1ec3n ngu\u1ed3n gen lo\u00e0i th\u1ef1c v\u1eadt q\u00fay hi\u1ebfm t\u1ea1i khu v\u1ef1c mi\u1ec1n Trung.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>C\u00e2y tr\u1ed9i, duy\u00ean h\u1ea3i mi\u1ec1n Trung, G\u1ee5 lau<\/p>\n<p>&nbsp;<\/p>\n<p><strong>RESEARCH ON SELECTION OF PLUS TREES OF <em>Sindora tonkinensis <\/em>A. Chev. Ex K. &amp; S. S. <span style=\"text-decoration: line-through;\">LARSEN <\/span>IN SEVERAL CENTRAL COAST PROVINCES<\/strong><\/p>\n<p><strong>Vu Duc Binh1, Nguyen Hai Thanh1, Le Cong Dinh1, Le Xuan Toan1, Pham Xuan Dinh1, Nguyen Thi Thanh Nga1, Hoang Van Tuan1, Nguyen Tien Linh2, Nguyen Van Loi3<\/strong><\/p>\n<p><em>1<\/em><em>Forest Science Centre for North of Central Vietnam<\/em><\/p>\n<p><em>2<\/em><em>Vietnamese Academy of Forest Sciences<\/em><\/p>\n<p><em>3<\/em><em>University of Agriculture and Forestry, Hue University<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>This research was conducted during 2022 &#8211; 2023 to select plus trees of <em>Sindora tonkinensis <\/em>with high wood yield and good trunk quality for afforestation for sawlog supply in several Central coast provinces. An inventory across 5 provinces in Central Vietnam was undertaken, using the scoring method of the individual trees based on critera of growth, stem straightness, branch smallness, and tree health. As a results, 78 plus trees were selected from 134 candidate trees from 5 provinces including Ha Tinh (12 trees), Quang Binh (25 trees), Quang Tri (15 trees), Thua Thien Hue (10 trees) and Quang Nam (16 trees). The plus trees had good growth with diameter at breast height (D1.3) and tree height (Hvn) ranging from 22.3 &#8211; 76.4 cm and 15 &#8211; 30 m respectively. The bole height (the length from ground to the first main living branch) ranged from 8.0 &#8211; 21.0 m, and accounted for 50.0 &#8211; 78.9% of Hvn, canopy diameter rangd from 7.5 &#8211; 16.0 m. All plus trees also had high stem productivity and quality with the total score ranging from 13 &#8211; 15 points\/tree with an average of 14.6 points\/tree. Seeds from 78 <em>Sindora tonkinensis <\/em>plus trees were collected and stored for propagation to build a germplasm collection area combined with variety trialsby the end of 2024, which contributes to the exploitation and development of gene resources of rare plant species in the Central region.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Central coast provinves, plus tree, <em>Sindora tonkinensis<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>T\u1ea1p ch\u00ed KHLN S\u1ed1 2\/2024<\/p>\n<p>\u00a9: Vi\u1ec7n KHLNVN &#8211; VAFS<\/p>\n<p>ISSN: 1859 &#8211; 0373\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u0110\u0103ng t\u1ea3i t\u1ea1i: <a href=\"http:\/\/www.vafs.gov.vn\/\">www.vafs.gov.vn<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>NH\u00c2N GI\u1ed0NG \u0110A T\u1eec TR\u00c0 BIDOUP<\/h2>\n<p><strong>(<\/strong><strong><em>Po<\/em><\/strong><strong><em>l<\/em><\/strong><strong><em>ys<\/em><\/strong><strong><em>p<\/em><\/strong><strong><em>ora<\/em><\/strong> <strong><em>bid<\/em><\/strong><strong><em>ou<\/em><\/strong><strong><em>p<\/em><\/strong><strong><em>e<\/em><\/strong><strong><em>n<\/em><\/strong><strong><em>s<\/em><\/strong><strong><em>i<\/em><\/strong><strong><em>s<\/em><\/strong> <strong>(<\/strong><strong>Ga<\/strong><strong>gn<\/strong><strong>e<\/strong><strong>p.)<\/strong> <strong>Ore<\/strong><strong>l,<\/strong> <strong>Pe<\/strong><strong>t<\/strong><strong>er<\/strong> <strong>G<\/strong><strong>.<\/strong><strong>W<\/strong><strong>il<\/strong><strong>so<\/strong><strong>n,<\/strong> <strong>Curry<\/strong> <strong>&amp; Luu) B\u1eb0NG GI\u00c2M HOM<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>L\u00ea H\u1ed3ng \u00c9n1, \u0110\u1ed7 V\u0103n D\u01b0\u01a1ng1, Nguy\u1ec5n V\u0103n Ph\u00fac1, L\u00ea Th\u1ecb Th\u00fay H\u00f2a1, Nguy\u1ec5n Ph\u1ea1m \u0110o\u00e0n1, Nguy\u1ec5n B\u00e1 Trung1, Tr\u01b0\u01a1ng Quang C\u01b0\u1eddng2\u00a0<\/strong><em>1<\/em><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean<\/em><\/p>\n<p><em>2<\/em><em>V\u01b0\u1eddn Qu\u1ed1c gia Bidoup &#8211; N\u00fai B\u00e0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh \u1ea3nh h\u01b0\u1edfng c\u1ee7a 03 lo\u1ea1i ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng th\u1ef1c v\u1eadt (IBA, NAA, IAA) \u1edf c\u00e1c n\u1ed3ng \u0111\u1ed9 kh\u00e1c nhau (0, 500, 1.000, 2.000, 4.000 ppm) c\u00f9ng c\u00e1c lo\u1ea1i gi\u00e1 th\u1ec3 (c\u00e1t s\u00f4ng ph\u1ed1i tr\u1ed9n v\u1edbi x\u01a1 d\u1eeba) \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m v\u1edbi c\u00e1c c\u00e0nh hom thu t\u1eeb c\u00e2y m\u1ecdc t\u1ef1 nhi\u00ean v\u00e0 c\u00e2y v\u1eadt li\u1ec7u 01 n\u0103m tu\u00f4\u0309i c\u1ee7a lo\u00e0i \u0110a t\u1eed tr\u00e0 bidoup. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, \u0111\u1ed1i v\u1edbi hom thu t\u1eeb c\u00e2y m\u1ecdc t\u1ef1 nhi\u00ean lo\u1ea1i ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng th\u1ef1c v\u1eadt IBA, n\u1ed3ng \u0111\u1ed9 1.000 ppm cho k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng, t\u1ef7 l\u1ec7 ra r\u1ec5, s\u1ed1 r\u1ec5, chi\u1ec1u d\u00e0i r\u1ec5 v\u00e0 ch\u1ec9 s\u1ed1 ra r\u1ec5 t\u01b0\u01a1ng \u1ee9ng 86,7%, 71,1%, 13,1 r\u1ec5, 6,2 cm v\u00e0 81,7 sau 120 ng\u00e0y gi\u00e2m hom. Gi\u00e1 th\u1ec3 ph\u00f9 h\u1ee3p nh\u1ea5t cho gi\u00e2m hom l\u00e0 90% c\u00e1t ph\u1ed1i tr\u1ed9n v\u1edbi 10% x\u01a1 d\u1eeba cho t\u1ef7 l\u1ec7 hom s\u1ed1ng \u0111\u1ea1t 88,9%, t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 77,8%, s\u1ed1 r\u1ec5 \u0111\u1ea1t 14,7 r\u1ec5, chi\u1ec1u d\u00e0i r\u1ec5 \u0111\u1ea1t 7,1 cm v\u00e0 ch\u1ec9 s\u1ed1 ra r\u1ec5 \u0111\u1ea1t 104,1 sau 120 ng\u00e0y. Hom \u0110a t\u1eed tr\u00e0 bidoup t\u1eeb c\u00e2y 1 n\u0103m tu\u00f4\u0309i cho k\u1ebft qu\u1ea3 ra r\u1ec5 t\u1ed1t h\u01a1n v\u1edbi th\u1eddi gian ng\u1eafn khi s\u1eed d\u1ee5ng IBA, n\u1ed3ng \u0111\u1ed9 100 ppm v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 ra r\u1ec5: t\u1ef7 l\u1ec7 s\u1ed1ng, t\u1ef7 l\u1ec7 ra r\u1ec5, s\u1ed1 r\u1ec5, chi\u1ec1u d\u00e0i r\u1ec5 v\u00e0 ch\u1ec9 s\u1ed1 ra r\u1ec5 t\u01b0\u01a1ng \u1ee9ng 95,6%, 92,2%, 29,3 r\u1ec5, 3,6 cm v\u00e0 105 sau 40 ng\u00e0y. C\u00e1c nghi\u00ean c\u1ee9u n\u00e0y c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong c\u00f4ng t\u00e1c b\u1ea3o t\u1ed3n v\u00e0 s\u1ea3n xu\u1ea5t gi\u1ed1ng, l\u00e0 ti\u1ec1n \u0111\u1ec1 cho c\u00f4ng t\u00e1c nh\u00e2n gi\u1ed1ng \u0111\u1ea1i tr\u00e0 cho nhu c\u1ea7u ph\u00e1t tri\u1ec3n lo\u00e0i n\u00e0y trong t\u01b0\u01a1ng lai.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng th\u1ef1c v\u1eadt, \u0110a t\u1eed tr\u00e0 bidoup, gi\u00e1 th\u1ec3, gi\u00e2m hom, nh\u00e2n gi\u1ed1ng.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>THE PROPAGATION OF <\/strong><strong>(<\/strong><strong><em>Po<\/em><\/strong><strong><em>l<\/em><\/strong><strong><em>ys<\/em><\/strong><strong><em>p<\/em><\/strong><strong><em>ora<\/em><\/strong> <strong><em>bid<\/em><\/strong><strong><em>ou<\/em><\/strong><strong><em>p<\/em><\/strong><strong><em>e<\/em><\/strong><strong><em>n<\/em><\/strong><strong><em>s<\/em><\/strong><strong><em>i<\/em><\/strong><strong><em>s<\/em><\/strong> <strong>(<\/strong><strong>Ga<\/strong><strong>gn<\/strong><strong>e<\/strong><strong>p.)<\/strong> <strong>Ore<\/strong><strong>l,<\/strong> <strong>Pe<\/strong><strong>t<\/strong><strong>er<\/strong> <strong>G<\/strong><strong>.<\/strong><strong>W<\/strong><strong>il<\/strong><strong>so<\/strong><strong>n,<\/strong> <strong>Curry<\/strong> <strong>&amp; Luu) <\/strong><strong>BY CUTTINGS METHOD<\/strong><\/p>\n<p><strong>Le<\/strong> <strong>Hong En1, Do Van Duong1, Nguyen Van Phuc1, Le Thi Thuy Hoa1, Nguyen Pham Doan1, Nguyen Ba Trung1, Truong Quang Cuong2<\/strong><\/p>\n<p><em>1<\/em><em>Forest Science Institute of Central Highlands and South of Central Vietnam<\/em><\/p>\n<p><em>2<\/em><em>Bidoup &#8211; Nui Ba National Park<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p>In this study, three types of plant growth regulators (IBA, NAA, IAA) with different concentrations (0, 500, 1,000, 2,000, 4,000 ppm) were used, and different types of substrates (sand and coir mixed) for shoot that collected from the wild trees of <em>Polyspora bidoupensis<\/em>; at the same time the experiments on cuttings for the shoot material that collecting from 1-year-old hedge mother trees were conducting at the nursery. The results show that, after 120 days for natural cuttings, the plant growth regulator IBA at a concentration of 1000 ppm gives the best results, with survival rate, rooting rate, number of roots, root length, and rooting index were 86.7%, 71.1%, 13.1 roots, 6.2 cm and 81.7, respectively. The most suitable substrate for the rooting stage is 90% sand mixed with 10% coir peat, resulting in a survival rate of 88.9%, a rooting rate of 77.8%, and the number of roots reaching 14.7 roots, root length reached 7.1 cm and the rooting index reached 104.1 after 120 days. The shoots of one-year-old <em>Polyspora bidoupensis <\/em>cuttings give better results in using IBA with the concentration of 100 ppm as survival rate, rooting rate, number, and length of roots were 95.6%, 92.2%, 29.3 roots, 3.6 cm and 105.0, respectively in the shorter propagation timing (40 days only instead for 120 days). These results provided the basic knowledge of cutting propagation for the studied species that can be used for future genetics conservation and development of the species.<\/p>\n<p><strong><em>Keywords<\/em><\/strong><strong>:<\/strong> Plant growth regulators, <em>Polyspora bidoupensis<\/em>, substrate, cuttings, propagation.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>K\u1ebeT QU\u1ea2 NGHI\u00caN C\u1ee8U NH\u00c2N GI\u1ed0NG V\u00d4 T\u00cdNH<\/h2>\n<p><strong>C\u00c2Y M\u00d9 U (<em>Calophyllum<\/em><em> inophyllum <\/em>L.) B\u1eb0NG PH\u01af\u01a0NG PH\u00c1P GI\u00c2M HOM<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Nguy\u1ec5n Tr\u1ecdng T\u00e0i1, Tr\u1ea7n H\u1eefu Bi\u1ec3n1,<\/h3>\n<p><strong>\u0110\u1ed7 Th\u1ecb Ng\u1ecdc H\u00e01, Ph\u00f9ng V\u0103n T\u1ec9nh1, Nguy\u1ec5n Th\u1ecb Hi\u1ebfu2\u00a0<\/strong><em>1<\/em><em>Trung t\u00e2m Nghi\u00ean c\u01b0\u0301u th\u1ef1c nghi\u1ec7m L\u00e2m nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9 2Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p Ph\u00e2n hi\u1ec7u t\u1ea1i t\u1ec9nh \u0110\u1ed3ng Nai<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>M\u00f9 u l\u00e0 lo\u00e0i c\u00e2y \u0111a m\u1ee5c \u0111\u00edch v\u00e0 c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf v\u1edbi v\u00f9ng ven bi\u1ec3n nhi\u1ec7t \u0111\u1edbi, th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u1ed3ng l\u00e0m c\u00e2y ven \u0111\u01b0\u1eddng \u0111\u1ec3 l\u1ea5y b\u00f3ng m\u00e1t v\u00e0 ch\u1eafn gi\u00f3, cung c\u1ea5p d\u1ea7u \u00e9p t\u1eeb qu\u1ea3 s\u1eed d\u1ee5ng trong y h\u1ecdc, g\u1ed7 lo\u00e0i n\u00e0y c\u00f2n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong \u0111\u00f3ng t\u00e0u thuy\u1ec1n. M\u1ee5c ti\u00eau c\u1ee7a nghi\u00ean c\u1ee9u nh\u1eb1m x\u00e1c \u0111\u1ecbnh lo\u1ea1i, n\u1ed3ng \u0111\u1ed9 ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng v\u00e0 m\u00f9a v\u1ee5 t\u1ed1t nh\u1ea5t cho gi\u00e2m hom M\u00f9 u. Nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng hom \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb c\u00e2y h\u1ea1t 1 n\u0103m tu\u00f4\u0309i thu h\u00e1i t\u1eeb c\u00e2y tr\u1ed9i \u0111\u00e3 \u0111\u01b0\u1ee3c tuy\u1ec3n ch\u1ecdn tr\u1ed3ng t\u1ea1i v\u01b0\u1eddn v\u1eadt li\u1ec7u c\u1ee7a Trung t\u00e2m Nghi\u00ean c\u1ee9u th\u1ef1c nghi\u1ec7m L\u00e2m nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng IBA v\u1edbi n\u1ed3ng \u0111\u1ed9 1.500 ppm cho k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 s\u1ed1ng: 97,5%, t\u1ef7 l\u1ec7 ra r\u1ec5: 93,9%, s\u1ed1 r\u1ec5 trung b\u00ecnh\/hom: 7,9 r\u1ec5 v\u00e0 ch\u1ec9 s\u1ed1 ra r\u1ec5 l\u00e0 38,7. M\u00f9a v\u1ee5 gi\u00e2m hom c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 c\u00e1c ch\u1ec9 ti\u00eau ch\u1ea5t l\u01b0\u1ee3ng r\u1ec5 c\u1ee7a hom M\u00f9 u (P-<em>value <\/em>&lt; 0,05), c\u00e1c ch\u1ec9 s\u1ed1 khi th\u1ef1c hi\u1ec7n gi\u00e2m hom v\u00e0o m\u00f9a kh\u00f4 t\u0103ng t\u1eeb 1,01 &#8211; 1,2 l\u1ea7n so v\u1edbi m\u00f9a m\u01b0a.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng, M\u00f9 u, m\u00f9a v\u1ee5, gi\u00e2m hom.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>RESULTS OF RESEARCH FOR ASEXUAL PROPAGATION<\/strong><\/p>\n<p><strong>OF <em><span style=\"text-decoration: line-through;\">Calophyllum inophyllum <\/span><\/em>BY CUTTINGS<\/strong><\/p>\n<p><strong>Nguyen Trong Tai1, Tran Huu Bien1,<\/strong><\/p>\n<p><strong>Do Thi Ngoc Ha1, Phung Van Tinh1, Nguyen Thi Hieu2<\/strong><\/p>\n<p><em>1<\/em><em>South Eastern Forest Research and Experimental Center<\/em><\/p>\n<p><em>2<\/em><em>Vietnam National University of Forestry at Dong Nai Campus<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p><em>Calophyllum inophyllum <\/em>is multi-purpose and economically valuable to tropical coastal areas, often planted as a roadside tree to provide shade and as wind breaks, provides fruit-pressed oil used in medicine, this wood can also be used in shipbuilding. The objective of the study was to determine the best type, concentration of growth regulators and the best season for <em>Calophyllum inophyllum <\/em>cuttings. The study used cuttings taken from 1-year-old seed trees collected from selected dominant trees planted in the material garden of the South Eastern Forest Research and Experimental Center. The results showed that the growth regulator IBA with the concentration of 1,500 ppm gave the best results with survival rate: 97.5%, rooting rate: 93.9%, average number of roots\/cutting: 7.9 roots and the rooting index was 38.7. The season of cuttings had a significant effect on the survival rate and root quality parameters of <em>Calophyllum inophyllum <\/em>cuttings (P-value &lt; 0.05), the indexes when cuttings in the dry season increased from 1.01 to 1.2 times compared to the rainy season.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Growth regulators, <em>Calophyllum inophyllum, <\/em>season, cuttings.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>NGHI\u00caN C\u1ee8U \u0110\u1eb6C \u0110I\u1ec2M SINH L\u00dd H\u1ea0T GI\u1ed0NG V\u00c0 \u1ea2NH H\u01af\u1edeNG C\u1ee6A TH\u00c0NH PH\u1ea6N RU\u1ed8T B\u1ea6U,<\/h2>\n<p><strong>CH\u1ebe<\/strong> <strong>\u0110<\/strong><strong>\u1ed8<\/strong> <strong>CHE<\/strong> <strong>S\u00c1NG<\/strong> <strong>\u0110\u1ebeN SINH TR\u01af\u1edeNG, PH\u00c1T TRI\u1ec2N<\/strong><\/p>\n<p><strong>C\u1ee6A<\/strong> <strong>RAU NG\u00d3T R\u1eeaNG (<em>Melientha<\/em><em> suavis <\/em>Pierre) T\u1ea0I HUY\u1ec6N NGUY\u00caN B\u00ccNH, T\u1ec8NH CAO B\u1eb0NG<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Phan Th\u1ecb Luy\u1ebfn, T\u1ea1 Nh\u1eadt V\u01b0\u01a1ng, Di\u1ec7p Xu\u00e2n Tu\u1ea5n<\/h3>\n<p><em>Trung t\u00e2m Nghi\u00ean c\u01b0\u0301u &amp; Chuy\u1ec3n giao K\u1ef9 thu\u1eadt L\u00e2m sinh<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Rau ng\u00f3t r\u1eebng thu\u1ed9c h\u1ecd S\u01a1n Cam, l\u00e0 lo\u1ea1i c\u00e2y b\u1ea3n \u0111\u1ecba c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao, l\u00e1 v\u00e0 hoa \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m th\u1ee9c \u0103n. Ngo\u00e0i ra, l\u00e1 v\u00e0 r\u1ec5 c\u00e2y c\u00f2n c\u00f3 c\u00f4ng d\u1ee5ng l\u00e0m thu\u1ed1c. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i huy\u1ec7n Nguy\u00ean B\u00ecnh, t\u1ec9nh Cao B\u1eb1ng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh l\u00fd h\u1ea1t gi\u1ed1ng nh\u01b0 sau: K\u00edch th\u01b0\u1edbc h\u1ea1t: \u0111\u01b0\u1eddng k\u00ednh 13,3 &#8211; 16,1 mm, chi\u1ec1u d\u00e0i 26,0 &#8211; 30,1 mm; 1 kg h\u1ea1t: 197 h\u1ea1t \u0111\u1ebfn 208 h\u1ea1t; \u0111\u1ed9 thu\u1ea7n c\u1ee7a h\u1ea1t gi\u1ed1ng: 91,5%; t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m: 87,3%; th\u1ebf n\u1ea3y m\u1ea7m: 39,7%; h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc trong h\u1ea1t: 37,7%; th\u1eddi gian h\u1ea1t b\u1eaft \u0111\u1ea7u n\u1ea3y m\u1ea7m: 22 ng\u00e0y sau khi gieo; th\u1eddi gian h\u1ea1t k\u1ebft th\u00fac n\u1ea3y m\u1ea7m: 35 ng\u00e0y sau khi gieo. Th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u t\u1ed1t nh\u1ea5t cho nh\u00e2n gi\u1ed1ng c\u00e2y con Rau ng\u00f3t r\u1eebng t\u1eeb h\u1ea1t: 95% \u0111\u1ea5t m\u1eb7t + 5% ph\u00e2n h\u1eefu c\u01a1 vi sinh. C\u00f4ng th\u1ee9c che s\u00e1ng 50% l\u00e0 c\u00f4ng th\u1ee9c ph\u00f9 h\u1ee3p cho c\u00e2y con sinh tr\u01b0\u1edfng trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m \u1edf t\u1ea5t c\u1ea3 c\u00e1c ch\u1ec9 ti\u00eau \u0111o \u0111\u1ebfm.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Rau ng\u00f3t r\u1eebng, sinh l\u00fd h\u1ea1t gi\u1ed1ng, th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u, ch\u1ebf \u0111\u1ed9 che s\u00e1ng.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>RESEARCH<\/strong> <strong>ON PHYSIOLOGICAL CHARACTERISTICS OF SEED AND INFLUENCE OF GOURD INGREDIENTS, COVERING REGIME TO THE GROWTH,<\/strong><\/p>\n<p><strong>EVELOPMENT OF PLANTS <em>Melientha suavis <\/em><span style=\"text-decoration: line-through;\">PIERRE<\/span> IN NGUYEN BINH DISTRICT, CAO BANG PROVINCE<\/strong><\/p>\n<p><strong>Phan Thi Luyen, Ta Nhat Vuong, Diep Xuan Tuan <\/strong><em>Centre<\/em> <em>for Applied Silviculture Research anh Extension <\/em><strong>SUMMARY<\/strong><\/p>\n<p><em>Melientha suavis <\/em>Pierre belongs to Opiliaceae family. This is native plant with high economic value, leaves<\/p>\n<p>and flowers are used as food. In addition, leaves and roots used for medicine making. The research was conducted in Nguyen Binh district, Cao Bang. The results of research on some physiological characteristics of seeds: Size of seed is 13.3 &#8211; 16,1 mm in width; 26.0 &#8211; 30.1 mm in length; 1kg of seeds: 197 &#8211; 208 seed; seed purity: 91.5%; seed germination: 87.3%; seed energy: 39.7%; water content in seed: 37.7%; seeds begin to germinate in 22th day after sowing; terminate germination in 35th day after sowing. The best container component for <em>Melientha suavis <\/em>Pierre is 95% topsoil + 5% microbiological organic fertilizer. The 50% shading formula is best for seedlings growing in the nursery stage in all measured parameters.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> <em>Melientha suavis <\/em>Pierre, physiological characteristics of seed, gourd ingredients, shading mode.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0110A D\u1ea0NG TH\u00c0NH PH\u1ea6N LO\u00c0I V\u00c0 GI\u00c1 TR\u1eca<\/h2>\n<p><strong>S<\/strong><strong>\u1eec<\/strong> <strong>D\u1ee4NG<\/strong> <strong>C\u00c2Y<\/strong> <strong>T<\/strong><strong>HU\u1ed0C<\/strong> <strong>\u0110\u01af\u1ee2C<\/strong> <strong>C\u1ed8NG<\/strong> <strong>\u0110\u1ed2NG<\/strong> <strong>D<\/strong><strong>\u00c2<\/strong><strong>N<\/strong> <strong>T<\/strong><strong>\u1ed8C<\/strong> <strong>T<\/strong><strong>H\u00c1<\/strong><strong>I<\/strong> <strong>S<\/strong><strong>\u1eec<\/strong> <strong>D\u1ee4NG<\/strong> <strong>T<\/strong><strong>\u1ea0<\/strong><strong>I<\/strong> <strong>X\u00c3 CHI\u1ec0NG MAI, HUY\u1ec6N MAI S\u01a0N, T\u1ec8NH S\u01a0N LA<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Ph\u1ea1m \u0110\u1ee9c Th\u1ecbnh1, Nguy\u1ec5n Ti\u1ebfn Ch\u00ednh1,\u00a02, V\u0169 Th\u1ecb Li\u00ean1, Nguy\u1ec5n Th\u00e0nh S\u01a1n1<\/h3>\n<p><em>1 <\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc T\u00e2y B\u1eafc<\/em><\/p>\n<p><em>2 <\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc Sunshine Coast, \u00dac<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh nh\u1eb1m \u0111\u00e1nh gi\u00e1 \u0111a d\u1ea1ng v\u00e0 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng c\u1ee7a t\u00e0i nguy\u00ean c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c Th\u00e1i t\u1ea1i x\u00e3 Chi\u1ec1ng Mai, huy\u1ec7n Mai S\u01a1n, t\u1ec9nh S\u01a1n La s\u1eed d\u1ee5ng. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p: ph\u1ecfng v\u1ea5n, \u0111i\u1ec1u tra tuy\u1ebfn, thu th\u1eadp m\u1eabu, \u0111\u1ecbnh danh lo\u00e0i, \u0111\u00e1nh gi\u00e1 ch\u1ec9 s\u1ed1 s\u1eed d\u1ee5ng c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n nghi\u00ean c\u1ee9u. K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 243 lo\u00e0i, 196 chi, thu\u1ed9c 89 h\u1ecd \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c Th\u00e1i \u1edf khu v\u1ef1c nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng trong ph\u00f2ng v\u00e0 ch\u1eefa b\u1ec7nh. C\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t \u0111\u1ec3 l\u00e0m thu\u1ed1c l\u00e0 l\u00e1, th\u00e2n v\u00e0 r\u1ec5. Nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 14 nh\u00f3m b\u1ec7nh (theo WHO, 2018) \u0111\u01b0\u1ee3c ch\u1eefa tr\u1ecb b\u1eb1ng kinh nghi\u1ec7m s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c c\u1ee7a c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c Th\u00e1i t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u, trong \u0111\u00f3 c\u00e1c nh\u00f3m b\u1ec7nh chi\u1ebfm t\u1ef7 l\u1ec7 cao nh\u1ea5t: nh\u00f3m b\u1ec7nh v\u1ec1 ti\u00eau h\u00f3a, nh\u00f3m b\u1ec7nh n\u1ed9i ti\u1ebft, dinh d\u01b0\u1ee1ng v\u00e0 chuy\u1ec3n h\u00f3a, nh\u00f3m b\u1ec7nh da li\u1ec7u v\u00e0 nh\u00f3m b\u1ec7nh v\u1ec1 h\u1ec7 x\u01b0\u01a1ng c\u01a1 ho\u1eb7c m\u00f4 li\u00ean k\u1ebft. Ch\u1ec9 s\u1ed1 s\u1eed d\u1ee5ng (UI) c\u00e1c lo\u00e0i c\u00e2y thu\u1ed1c c\u1ee7a ng\u01b0\u1eddi d\u00e2n t\u1ed9c Th\u00e1i t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u dao \u0111\u1ed9ng t\u1eeb 0,12 &#8211; 0,99 trong \u0111\u00f3 nh\u00f3m c\u00e2y c\u00f3 ch\u1ec9 s\u1ed1 s\u1eed d\u1ee5ng t\u1eeb 0,76 &#8211; 0,99, s\u1ed1 lo\u00e0i nhi\u1ec1u nh\u1ea5t v\u1edbi 81 lo\u00e0i chi\u1ebfm 33,33%. Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh trong c\u00e1c lo\u00e0i c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00e2n s\u1eed d\u1ee5ng c\u00f3 25 lo\u00e0i nguy c\u1ea5p &#8211; q\u00fay hi\u1ebfm c\u1ea7n \u0111\u01b0\u1ee3c \u01b0u ti\u00ean b\u1ea3o t\u1ed3n. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u l\u00e0 c\u01a1 s\u1edf \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o t\u1ed3n ngu\u1ed3n t\u00e0i nguy\u00ean th\u1ef1c v\u1eadt l\u00e0m thu\u1ed1c t\u1ea1i x\u00e3 Chi\u1ec1ng Mai, huy\u1ec7n Mai S\u01a1n, t\u1ec9nh S\u01a1n La.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>C\u00e2y thu\u1ed1c, d\u00e2n t\u1ed9c Th\u00e1i, S\u01a1n La, x\u00e3 Chi\u1ec1ng Mai<\/p>\n<p>&nbsp;<\/p>\n<p><strong>SPECIES COMPOSITION AND UTILIZATION VALUE OF MEDICINAL PLANTS USED<\/strong><\/p>\n<p><strong>BY THE THAI ETHNIC COMMUNITY IN CHIENG MAI COMMUNE, MAI SON DISTRICT, SON LA PROVINCE<\/strong><\/p>\n<p><strong>Pham Duc Thinh1, Nguyen Tien Chinh1, 2, Vu Thi Lien1, Nguyen Thanh Son1<\/strong><\/p>\n<p><em>1 <\/em><em>Tay Bac University<\/em><\/p>\n<p><em>2 <\/em><em>University of the Sunshine Coast, Australia<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>This study was carried out to investigate the diversity and value of medical plants which are being used by Thai people in Chieng Mai commune, Mai Son district, Son La province. The study used the following methods: interview, transect survey, sample collection, species identification, and usage index assessment of medical plants (UI). The results show that 243 species belonging to 196 genera of 89 families are being used by the Thai community for disease prevention and treatment. Of medical plant parts, leaves, stems, and roots are mainly used. The study also identified 14 disease categories which are treated based on the knowledge about medical plants of Thai people in the study area; of which, digestive system, bone and joint, and wound- related diseases had the highest rates. The UI of the Thai people ranged from 0.12 to 0.99; of which the UI from 0.76 to 0.99 had the highest number of used species (81 species), accounting for 33.33%. The study found that 25 medical plant species are listed as threatened species which need to be preserved. These findings are crucial to suggest conservation implications for medical plants at Chieng Mai commune, Mai Son district, Son La province.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Chieng Mai commune, medicinal plants, Son La, Thai people<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0110A D\u1ea0NG TH\u1ef0C V\u1eacT<\/h2>\n<p><strong>T\u1ea0I<\/strong> <strong>C\u00c1C KHU R\u1eeaNG \u0110\u1eb6C D\u1ee4NG T\u1ec8NH QU\u1ea2NG NAM<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Ph\u1ea1m Th\u1ecb Kim Thoa1, Nguy\u1ec5n V\u0103n Hi\u1ec7u1, Nguy\u1ec5n Th\u1ecb Thu H\u1eb1ng2, Nguy\u1ec5n H\u1ea3i \u0110\u0103ng3, V\u00f5 \u0110\u1ea1i H\u1ea3i4, Nguy\u1ec5n H\u1eefu C\u01b0\u1eddng2<\/h3>\n<p><em>1<\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc B\u00e1ch khoa, \u0110\u1ea1i h\u1ecdc \u0110\u00e0 N\u1eb5ng<\/em><\/p>\n<p><em>2<\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>3<\/em><em>Trung t\u00e2m L\u00e2m nghi\u1ec7p nhi\u1ec7t \u0111\u1edbi, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung b\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean<\/em><\/p>\n<p><em>4<\/em><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>T\u1ec9nh Qu\u1ea3ng Nam l\u00e0 n\u01a1i giao thoa c\u1ee7a h\u1ec7 \u0111\u1ed9ng th\u1ef1c v\u1eadt ph\u00eda B\u1eafc v\u00e0 ph\u00eda Nam n\u00ean c\u00f3 t\u00ednh \u0111a d\u1ea1ng sinh h\u1ecdc (\u0110DSH) \u0111\u1eb7c th\u00f9 v\u00e0 c\u00f3 t\u1ea7m quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u1ec9nh. Tuy nhi\u00ean, c\u00e1c v\u1ea5n \u0111\u1ec1 x\u00e3 h\u1ed9i \u0111\u1eb7t ra hi\u1ec7n nay v\u1ec1 m\u00f4i tr\u01b0\u1eddng, kinh t\u1ebf v\u00e0 x\u00e3 h\u1ed9i \u0111ang g\u00e2y nhi\u1ec1u \u00e1p l\u1ef1c l\u00ean h\u1ec7 sinh th\u00e1i t\u1ef1 nhi\u00ean. \u0110\u1ec3 s\u1eed d\u1ee5ng h\u1ee3p l\u00fd t\u00e0i nguy\u00ean \u0110DSH theo h\u01b0\u1edbng b\u1ec1n v\u1eefng ph\u1ee5c v\u1ee5 ph\u00e1t tri\u1ec3n kinh t\u1ebf &#8211; x\u00e3 h\u1ed9i v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u1ee7a t\u1ec9nh, m\u1ed9t trong nh\u1eefng b\u01b0\u1edbc \u0111\u1ea7u c\u1ea5p thi\u1ebft l\u00e0 x\u00e2y d\u1ef1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u (CSDL) v\u1ec1 \u0110DSH n\u00f3i chung v\u00e0 \u0110DSH h\u1ec7 th\u1ef1c v\u1eadt n\u00f3i ri\u00eang. Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch, \u0111\u00e1nh gi\u00e1 d\u1eef li\u1ec7u \u0111a d\u1ea1ng h\u1ec7 th\u1ef1c v\u1eadt t\u1ea1i c\u00e1c Khu r\u1eebng \u0111\u1eb7c d\u1ee5ng t\u1ec9nh Qu\u1ea3ng Nam \u0111\u01b0\u1ee3c ghi nh\u1eadn trong g\u1ea7n 30 c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u v\u00e0 t\u00e0i li\u1ec7u trong v\u00e0 ngo\u00e0i n\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi k\u1ebft h\u1ee3p \u0111i\u1ec1u tra b\u00f4\u0309 sung t\u1ea1i th\u1ef1c \u0111\u1ecba. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u00e3 ch\u1ec9 ra c\u00f3 1.925 lo\u00e0i th\u1ef1c v\u1eadt b\u1eadc cao thu\u1ed9c 204 h\u1ecd, 82 b\u1ed9, 9 l\u1edbp n\u1eb1m trong 6 nh\u00f3m ng\u00e0nh th\u1ef1c v\u1eadt (ng\u00e0nh C\u1ecf th\u00e1p b\u00fat, ng\u00e0nh D\u01b0\u01a1ng x\u1ec9, ng\u00e0nh Ng\u1ecdc lan, ng\u00e0nh Quy\u1ebft l\u00e1 th\u00f4ng, ng\u00e0nh Th\u00f4ng \u0111\u1ea5t v\u00e0 ng\u00e0nh Th\u00f4ng). K\u1ebft qu\u1ea3 qua 6 \u0111\u1ee3t \u0111i\u1ec1u tra tr\u00ean 59 tuy\u1ebfn v\u00e0 54 \u00f4 ti\u00eau chu\u1ea9n (OTC) (1.000 m2) t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia S\u00f4ng Thanh (VQG), Khu h\u1ec7 th\u1ef1c v\u1eadt r\u1eebng T\u00e2y Giang, Khu b\u1ea3o t\u1ed3n lo\u00e0i v\u00e0 sinh c\u1ea3nh Sao La (KBTL&amp;SC), Khu b\u1ea3o t\u1ed3n lo\u00e0i v\u00e0 sinh c\u1ea3nh Voi (KBTL&amp;SC), Khu d\u1ef1 tr\u1eef sinh quy\u1ec3n C\u00f9 Lao Ch\u00e0m (KDTSQ) v\u00e0 Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean (BTTN) Ng\u1ecdc Linh \u0111\u00e3 b\u00f4\u0309 sung \u0111\u01b0\u1ee3c 827 lo\u00e0i (trong \u0111\u00f3 hai lo\u00e0i m\u1edbi cho khoa h\u1ecdc: <em>Leptomischus multiflorus <\/em>v\u00e0 <em>Raphiocarpus taygiangensis<\/em>) thu\u1ed9c 155<\/p>\n<p>h\u1ecd, trong 5 ng\u00e0nh th\u1ef1c v\u1eadt: Quy\u1ebft l\u00e1 th\u00f4ng, Th\u00f4ng \u0111\u1ea5t, D\u01b0\u01a1ng x\u1ec9, H\u1ea1t tr\u1ea7n v\u00e0 H\u1ea1t k\u00edn. Nghi\u00ean c\u1ee9u c\u00f2n ch\u1ec9 ra \u0111\u1eb7c \u0111i\u1ec3m \u0111a d\u1ea1ng d\u1ea1ng s\u1ed1ng, gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ea3o t\u1ed3n c\u1ee7a h\u1ec7 th\u1ef1c v\u1eadt t\u1ef1 nhi\u00ean t\u1ea1i c\u00e1c khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean t\u1ec9nh Qu\u1ea3ng Nam.<\/p>\n<p><strong><em>T\u1eeb<\/em><\/strong> <strong><em>kh\u00f3a:<\/em><\/strong> B\u1ea3o t\u1ed3n \u0111a d\u1ea1ng sinh h\u1ecdc, c\u01a1 s\u1edf d\u1eef li\u1ec7u, \u0111a d\u1ea1ng th\u00e0nh ph\u1ea7n lo\u00e0i th\u1ef1c v\u1eadt, qu\u1ea3n l\u00fd h\u1ec7 sinh th\u00e1i b\u1ec1n v\u1eefng<\/p>\n<p>&nbsp;<\/p>\n<p><strong>PLANT<\/strong> <strong>DIVERSITY IN SPECIAL USE FORESTS, QUANG NAM PROVINCE<\/strong><\/p>\n<p><strong>Pham Thi Kim Thoa1, Nguyen Van Hieu1, Nguyen Thi Thu Hang2, Nguyen Hai Dang3, Vo Dai Hai4, Nguyen Huu Cuong2<\/strong><\/p>\n<p><em>1<\/em><em>University of Science and Technology, The university of Da Nang<\/em><\/p>\n<p><em>2<\/em><em>Vietnam National University of Forestry<\/em><\/p>\n<p><em>3<\/em><em>Tropical Forest Reseach Centre, Forest Science Institute of Central Highlands and South of Central Vietnam<\/em><\/p>\n<p><em>4 <\/em><em>Vietnamese Academy of Forest Sciences<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p>Quang Nam province is the intersection of the flora and fauna of the North and the South, so it has a unique biodiversity and is important for the development of the province. However, current social, economic and environmental\u00a0 issues are putting a lot of pressure on the natural ecosystem. In order to rationally use<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>biodiversity resources in a sustainable way for socio-economic development and environmental protection of the province, one of the urgent first steps is to build a database on biodiversity in general, and flora biodiversity in particular. This study has analyzed and evaluated data on flora diversity in Nature Reserves (NRs), National Parks, Flora and Species Conservation Areas in Quang Nam Province recorded in more than 30 years, research works and documents of domestic and foreign, as well as additional investigation in the field. The results of data analysis have shown that there are at least 1,925 species of higher plants belonging to<\/p>\n<p>204 families, 82 orders, and 9 classes in 6 divisions (Psilotophyta, Lycopodiophyta, Equisetophyta, Pteridophyta, Pinophyta, Magnoliophyta,). Results of six investigations, on 59 routes and 54 OTCs (1,000 m2) in Song Thanh National Park, Tay Giang Forest Flora, Saola Nature Reserve, Elephant species and habitat conservation area, Cu Lao Cham Biosphere Reserve, Ngoc Linh Nature Reserve have added 827 species (with two new species: <em>Leptomischus multiflorus <\/em>v\u00e0 <em>Raphiocarpus taygiangensis<\/em>) belonging to 155 families, in 5 groups of flora: Psilotophyta, Lycopodiophyta, Pteridophyta, Pinophyta, Magnoliophyta, including 827 species not mentioned in the list of analyzed documents. The study also shows the diversity of life forms, use value and conservation status of natural flora in nature reserves in Quang Nam province.<\/p>\n<p><strong><em>Keywords<\/em><\/strong><em>:<\/em> Conservation of biodiversity, database, diversity of plant species, sustainable ecosystem management.<\/p>\n<p>&nbsp;<\/p>\n<h2>TH\u1ef0C TR\u1ea0NG KHAI TH\u00c1C V\u00c0 S\u1eec D\u1ee4NG L\u00c2M S\u1ea2N NGO\u00c0I G\u1ed6 T\u1ea0I \u0110\u1ea2O H\u00d2N LAO, C\u00d9 LAO CH\u00c0M<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Nguy\u1ec5n H\u1ea3i \u0110\u0103ng1, V\u00f5 \u0110\u1ea1i H\u1ea3i2, Nguy\u1ec5n H\u1eefu C\u01b0\u1eddng3<\/h3>\n<p><em>1<\/em><em>Trung t\u00e2m L\u00e2m nghi\u1ec7p nhi\u1ec7t \u0111\u1edbi, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung b\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean<\/em><\/p>\n<p><em>2<\/em><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>3<\/em><em>Tr\u01b0\u1eddng<\/em><em> \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Qu\u1ea7n \u0111\u1ea3o C\u00f9 Lao Ch\u00e0m thu\u1ed9c x\u00e3 T\u00e2n Hi\u1ec7p, th\u1ecb x\u00e3 H\u1ed9i An, t\u1ec9nh Qu\u1ea3ng Nam, bao g\u1ed3m 8 h\u00f2n \u0111\u1ea3o, trong \u0111\u00f3 \u0111\u1ea3o H\u00f2n Lao l\u00e0 l\u1edbn nh\u1ea5t v\u00e0 c\u00f3 vai tr\u00f2 chi\u1ebfn l\u01b0\u1ee3c quan tr\u1ecdng trong ph\u00e1t tri\u1ec3n kinh t\u1ebf &#8211; x\u00e3 h\u1ed9i, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i, an ninh &#8211; qu\u1ed1c ph\u00f2ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 b\u1ea3o t\u1ed3n \u0111a d\u1ea1ng sinh h\u1ecdc v\u00e0 du l\u1ecbch sinh th\u00e1i. H\u1ec7 sinh th\u00e1i r\u1eebng tr\u00ean \u0111\u1ea3o H\u00f2n Lao l\u00e0 r\u1eebng k\u00edn th\u01b0\u1eddng xanh m\u01b0a \u1ea9m nhi\u1ec7t \u0111\u1edbi v\u1edbi nhi\u1ec1u lo\u00e0i c\u00e2y l\u00e2m s\u1ea3n ngo\u00e0i g\u1ed7 (LSNG) c\u00f3 gi\u00e1 tr\u1ecb. Ng\u01b0\u1eddi d\u00e2n \u0111\u1ecba ph\u01b0\u01a1ng \u0111\u00e3 v\u00e0 \u0111ang s\u1eed d\u1ee5ng c\u00e1c lo\u00e0i c\u00e2y LSNG v\u00e0o m\u1ee5c \u0111\u00edch b\u1ed3i b\u00f4\u0309 s\u1ee9c kh\u1ecfe, ch\u1eefa tr\u1ecb c\u00e1c b\u1ec7nh v\u1ec1 ti\u00eau h\u00f3a, th\u1eadn, m\u00e1t gan,&#8230; cho cho ng\u01b0\u1eddi d\u00e2n s\u1edf t\u1ea1i v\u00e0 cho kh\u00e1ch du l\u1ecbch. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p khai th\u00e1c, ch\u1ebf bi\u1ebfn v\u00e0 th\u01b0\u01a1ng m\u1ea1i s\u1ea3n ph\u1ea9m c\u00f2n th\u1ee7 c\u00f4ng v\u00e0 th\u00f4 s\u01a1, ch\u01b0a s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u00f9ng v\u00e0 quy m\u00f4 s\u1eed d\u1ee5ng ch\u01b0a cao. Tuy v\u1eady, vi\u1ec7c khai th\u00e1c LSNG c\u0169ng \u0111\u00e3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u00e0i nguy\u00ean r\u1eebng v\u00e0 ch\u01b0a \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ec1n v\u1eefng v\u1ec1 l\u00e2u d\u00e0i. C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c ki\u1ebfn ngh\u1ecb g\u1ed3m quy ho\u1ea1ch v\u00f9ng thu h\u00e1i LSNG, x\u00e2y d\u1ef1ng quy tr\u00ecnh k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng v\u00e0 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng LSNG, th\u1eed nghi\u1ec7m gi\u1ea3i ph\u00e1p \u0111\u1ed3ng qu\u1ea3n l\u00fd r\u1eebng, t\u1eadp hu\u1ea5n v\u00e0 chuy\u1ec3n giao c\u00f4ng ngh\u1ec7.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Khai th\u00e1c v\u00e0 s\u1eed d\u1ee5ng, l\u00e2m s\u1ea3n ngo\u00e0i g\u1ed7, \u0110\u1ea3o H\u00f2n Lao, C\u00f9 Lao Ch\u00e0m<\/p>\n<p>&nbsp;<\/p>\n<p><strong>CURRENT STATUS OF HARVEST AND USE OF NON-TIMBER FOREST PRODUCTS IN HON LAO ISLAND, CU LAO CHAM<\/strong><\/p>\n<p><strong>Nguyen Hai Dang1, Vo Dai Hai2, Nguyen Huu Cuong3<\/strong><\/p>\n<p><em>1<\/em><em>Tropical Forest Reseach Centre, Forest Science Institute of Central Highlands and South of Central Vietnam<\/em><\/p>\n<p><em>2 <\/em><em>Vietnamese Academy of Forest Sciences<\/em><\/p>\n<p><em>3 <\/em><em>Vietnam National University of Forestry<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>Cu Lao Cham island belongs to Tan Hiep commune, Hoi An town, Quang Nam province, including 8 islands, of which Hon Lao island is the largest and plays an important role in the economic development &#8211; society, ecological environment protection, security &#8211; defense, especially biodiversity conservation and ecotourism. The forest ecosystem in Hon Lao island is a tropical humid evergreen closed forest with several valuable non- timber forest species. Local people have been using non-timber species for the aim of improving health, treating digestive, kidney, liver diseases, etc. for themselves and tourists. Methods of harvesting, processing and trading products are still manual and rudimentary, specialized equipment are not used \u00a0effectively. However, the harvest of non-timber forest products has also impacted forest resources and has not ensured long-term sustainability. Recommended solutions including planning areas for harvesting non-timber species, developing technical processes for sustainable use and development of non-timber species; forest co- management solutions, training and technology transfer have been applied.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Harvest and use, non-timber forest products, Hon Lao island, Cu Lao Cham<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>NGHI\u00caN C\u1ee8U \u0110\u1eb6C \u0110I\u1ec2M QU\u1ea6N X\u00c3 TH\u1ef0C V\u1eacT TH\u00c2N G\u1ed6 PH\u00c1T TRI\u1ec2N TR\u00caN D\u1ea0NG \u0110\u1ea4T C\u00c1T VEN BI\u1ec2N T\u1ec8NH TR\u00c0 VINH<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Ho\u00e0ng V\u0103n Th\u01a1i, L\u00ea Thanh Quang,<\/h3>\n<p><strong>Nguy\u1ec5n Kh\u1eafc \u0110i\u1ec7u, \u0110inh Th\u1ecb Ph\u01b0\u01a1ng Vy, \u0110inh Duy Tu\u1ea5n<\/strong><\/p>\n<p><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u \u0111\u1eb7c \u0111i\u1ec3m qu\u1ea7n x\u00e3 th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 ph\u00e1t tri\u1ec3n tr\u00ean d\u1ea1ng \u0111\u1ea5t c\u00e1t ven bi\u1ec3n t\u1ec9nh Tr\u00e0 Vinh, \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb th\u00e1ng 8 n\u0103m 2019 \u0111\u1ebfn th\u00e1ng 8 n\u0103m 2020 t\u1ea1i ven bi\u1ec3n c\u00e1c huy\u1ec7n C\u1ea7u Ngang, Duy\u00ean H\u1ea3i v\u00e0 th\u1ecb x\u00e3 Duy\u00ean H\u1ea3i, t\u1ec9nh Tr\u00e0 Vinh, nh\u1eb1m x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c (i) th\u00e0nh ph\u1ea7n, c\u1ea5u tr\u00fac v\u00e0 sinh tr\u01b0\u1edfng c\u1ee7a lo\u00e0i c\u00e2y th\u00e2n g\u1ed7 hi\u1ec7n c\u00f3 \u1edf v\u00f9ng ven bi\u1ec3n, v\u00e0 (ii) ch\u1ecdn \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 lo\u00e0i c\u00f3 ti\u1ec1m n\u0103ng \u0111\u1ec3 \u0111\u01b0a v\u00e0o g\u00e2y tr\u1ed3ng r\u1eebng ph\u00f2ng h\u1ed9. Nghi\u00ean c\u1ee9u \u0111\u00e3 ti\u1ebfn h\u00e0nh kh\u1ea3o s\u00e1t 12 tuy\u1ebfn (m\u1ed7i x\u00e3 b\u1ed1 tr\u00ed 3 tuy\u1ebfn) theo h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi \u0111\u01b0\u1eddng b\u1edd bi\u1ec3n, chi\u1ec1u d\u00e0i tuy\u1ebfn bi\u1ebfn \u0111\u1ed9ng t\u1eeb 200 &#8211; 2.000 m, kho\u1ea3ng c\u00e1ch tuy\u1ebfn 4 &#8211; 5 km, ti\u1ebfn h\u00e0nh m\u00f4 t\u1ea3 th\u00e0nh ph\u1ea7n, \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac, sinh tr\u01b0\u1edfng c\u1ee7a th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 v\u00e0 s\u1ef1 thay \u0111\u00f4\u0309i v\u1ec1 \u0111\u1ea5t \u0111ai, \u0111\u1ecba h\u00ecnh tr\u00ean tuy\u1ebfn \u0111i\u1ec1u tra; Thi\u1ebft l\u1eadp 12 \u00f4 m\u1eabu \u0111\u1ea1i di\u1ec7n cho c\u00e1c nh\u00f3m d\u1ea1ng l\u1eadp \u0111\u1ecba, di\u1ec7n t\u00edch \u00f4 m\u1eabu 400 m2\u00a0(20\uf0b420 m), \u0111i\u1ec1u tra \u00f4 ti\u00eau chu\u1ea9n, \u0111o \u0111\u1ebfm ch\u1ec9 ti\u00eau nh\u01b0 th\u00e0nh ph\u1ea7n lo\u00e0i, \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c, chi\u1ec1u cao, \u0111\u01b0\u1eddng k\u00ednh t\u00e1n c\u1ee7a t\u1ea5t c\u1ea3 nh\u1eefng c\u00e2y th\u00e2n g\u1ed7 c\u00f3 chi\u1ec1u cao tr\u00ean 2 m. K\u1ebft qu\u1ea3 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c (i) 29 lo\u00e0i c\u00e2y th\u00e2n g\u1ed7 thu\u1ed9c 15 h\u1ecd th\u1ef1c v\u1eadt m\u1ecdc t\u1ef1 nhi\u00ean v\u00e0 \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1ea1i khu v\u1ef1c ven bi\u1ec3n Tr\u00e0 Vinh; (ii) l\u1eadp danh l\u1ee5c lo\u00e0i c\u00e2y c\u00f3 ti\u1ec1m n\u0103ng v\u00e0 ph\u00f9 h\u1ee3p cho tr\u1ed3ng r\u1eebng ph\u00f2ng h\u1ed9 ven bi\u1ec3n Tr\u00e0 Vinh, bao g\u1ed3m 7 lo\u00e0i trong \u0111\u00f3 c\u00f3 3 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba m\u1ecdc t\u1ef1 nhi\u00ean v\u00e0 4 lo\u00e0i c\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng; (iii) \u0111\u1ec1 xu\u1ea5t v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc, sinh th\u00e1i c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y c\u00f3 tri\u1ec3n v\u1ecdng g\u00e2y tr\u1ed3ng tr\u00ean v\u00f9ng \u0111\u1ea5t c\u00e1t ven bi\u1ec3n Tr\u00e0 Vinh.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>\u0110\u1ea5t c\u00e1t, c\u00e2y th\u00e2n g\u1ed7, c\u1ea5u tr\u00fac, sinh tr\u01b0\u1edfng, r\u1eebng ph\u00f2ng h\u1ed9.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>RESEARCH<\/strong> <strong>ON CHARACTERISTICS OF WOODY PLANT COMMUNITIES DEVELOPING ON COASTAL SANDY LANDS OF TRA VINH PROVINCE<\/strong><\/p>\n<p><strong>Hoang Van Thoi, Le Thanh Quang, Nguyen Khac Dieu, Dinh Thi Phuong Vy, Dinh Duy Tuan<\/strong><\/p>\n<p><em>Forestry<\/em> <em>Science Institute of South Vietnam<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>Research on the characteristics of woody plant communities growing on sandy soil along the coast of Tra Vinh province, conducted from August 2019 to August 2020 in the coastal areas of Cau Ngang, Duyen Hai and Duyen Hai town, Tra Vinh province, in order to determine (i) the composition, structure and growth of existing woody plant species in the coastal area, and (ii) select a number of potential species for introduction into afforestation protection. The study conducted a survey of 12 routes (each commune arranged 3 routes) in the direction perpendicular to the coastline, the route length varied from 200 &#8211; 2000 m, the route distance was 4 &#8211; 5 km, and conducted a description. composition, structural characteristics, growth of woody plants and changes in soil and topography along the investigation route; Set up 12 sample plots representing site type groups, sample plot area of 400 m2 (20\uf0b420 m), survey standard plots, measure indicators such as species composition, diameter at breast height, height, canopy diameter of all trees with a height of over 2 m. The results have identified (i) 29 species of woody plants belonging to 15 plant families growing naturally and planted in the coastal area of Tra Vinh; (ii) create a list of potential and suitable tree species for planting protective forests along the coast of Tra Vinh, including 7 species, including 3 native tree species that grow naturally and 4 tree species that have been planted locally; (iii) identify some biological and ecological characteristics of potential tree species grown on sandy soil along the coast of Tra Vinh.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Sandy soil, woody plants, structure, growth, forest of the protection.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0110\u00c1NH GI\u00c1 HI\u1ec6U SU\u1ea4T C\u1ee6A \u1ea2NH V\u1ec6 TINH SENTINEL 2A V\u00c0 PLANETSCOPE TRONG PH\u00c2N LO\u1ea0I TH\u1ea2M PH\u1ee6 R\u1eeaNG T\u1ea0I V\u01af\u1edcN QU\u1ed0C GIA T\u00c0 \u0110\u00d9NG, \u0110\u1eaeK N\u00d4NG, VI\u1ec6T NAM<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Phan Th\u1ecb H\u1eb1ng*, Nguy\u1ec5n Th\u1ecb Thanh H\u01b0\u01a1ng<\/h3>\n<p><em>Khoa N\u00f4ng L\u00e2m, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc T\u00e2y Nguy\u00ean<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Trong nghi\u00ean c\u1ee9u n\u00e0y, \u0111\u00e3 ti\u1ebfn h\u00e0nh ph\u00e2n t\u00edch v\u00e0 so s\u00e1nh hi\u1ec7u qu\u1ea3 c\u1ee7a hai lo\u1ea1i \u1ea3nh v\u1ec7 tinh, Sentinel 2A (SE-2A) v\u00e0 PlanetScope trong vi\u1ec7c ph\u00e2n lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia T\u00e0 \u0110\u00f9ng, Vi\u1ec7t Nam d\u1ef1a tr\u00ean c\u00e1c m\u1ee9c \u0111\u1ed9 t\u00e1c \u0111\u1ed9ng. M\u1ee5c ti\u00eau ch\u00ednh l\u00e0 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a hai lo\u1ea1i \u1ea3nh n\u00e0y trong vi\u1ec7c cung c\u1ea5p d\u1eef li\u1ec7u v\u1ec1 hi\u1ec7n tr\u1ea1ng v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a c\u00e1c th\u1ea3m ph\u1ee7 r\u1eebng, h\u1ed7 tr\u1ee3 c\u00f4ng t\u00e1c qu\u1ea3n l\u00fd b\u1ea3o t\u1ed3n t\u00e0i nguy\u00ean r\u1eebng. Thu\u1eadt to\u00e1n SVM (Support Vector Machine) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n lo\u1ea1i cho c\u1ea3 hai ngu\u1ed3n \u1ea3nh v\u1ec7 tinh. K\u1ebft qu\u1ea3 cho th\u1ea5y c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e2n lo\u1ea1i v\u00e0 \u01b0\u1edbc l\u01b0\u1ee3ng di\u1ec7n t\u00edch c\u00e1c lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng gi\u1eefa hai ngu\u1ed3n d\u1eef li\u1ec7u. Tuy v\u1eady, c\u1ea3 hai lo\u1ea1i \u1ea3nh \u0111\u1ec1u cho k\u1ebft qu\u1ea3 ph\u00e2n lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng c\u00f3 \u0111\u1ed9 tin c\u1eady cao, v\u1edbi t\u1ef7 l\u1ec7 ch\u00ednh x\u00e1c tr\u00ean 90% cho r\u1eebng v\u00e0 c\u00e1c lo\u1ea1i \u0111\u1ea5t kh\u00e1c v\u00e0 tr\u00ean 80% cho t\u1eebng lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng (r\u1eebng b\u1ecb t\u00e1c \u0111\u1ed9ng \u00edt, r\u1eebng t\u00e1c \u0111\u1ed9ng trung b\u00ecnh v\u00e0 r\u1eebng t\u00e1c \u0111\u1ed9ng m\u1ea1nh). K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra, m\u1eb7c d\u00f9 c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p h\u01a1n nh\u01b0ng \u1ea3nh SE-2A v\u1eabn c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u00e1ng tin c\u1eady l\u00e0 84,5% so v\u1edbi \u1ea3nh PlanetScope l\u00e0 87,94%. PlanetScope c\u00f3 \u0111\u1ed9 tin c\u1eady cao nh\u01b0ng ph\u1ea3i t\u1ed1n chi ph\u00ed v\u00e0 s\u1ed1 l\u01b0\u1ee3ng band \u1ea3nh h\u1ea1n ch\u1ebf v\u1edbi 4 band \u1ea3nh. Trong khi \u0111\u00f3, SE-2A c\u00f3 s\u1ed1 l\u01b0\u1ee3ng band \u1ea3nh l\u1edbn h\u01a1n v\u1edbi 13 band \u1ea3nh, \u0111\u1ed3ng th\u1eddi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c cung c\u1ea5p mi\u1ec5n ph\u00ed v\u00e0 c\u1eadp nh\u1eadt \u0111\u1ecbnh k\u1ef3. Do \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn ngu\u1ed3n d\u1eef li\u1ec7u v\u1ec7 tinh cho nghi\u00ean c\u1ee9u c\u1ea7n c\u00e2n nh\u1eafc d\u1ef1a tr\u00ean ngu\u1ed3n ng\u00e2n s\u00e1ch, m\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u v\u00e0 \u0111\u00e1nh gi\u00e1 \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a m\u1ed7i ngu\u1ed3n \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh ph\u00f9 h\u1ee3p.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>SE-2A, Plannetscope, SVM, ph\u00e2n lo\u1ea1i th\u1ea3m ph\u1ee7 r\u1eebng, \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e2n lo\u1ea1i, GIS v\u00e0 vi\u1ec5n th\u00e1m<\/p>\n<p>&nbsp;<\/p>\n<p><strong>EVALUATING THE PERFORMANCE OF SENTINEL 2A AND PLANETSCOPE SATELLITE IMAGING SYSTEMS IN FOREST COVER CLASSIFICATION<\/strong><\/p>\n<p><strong>AT TA DUNG NATIONAL PARK, DAK NONG, VIETNAM<\/strong><\/p>\n<p><strong>Phan Thi Hang*, Nguyen Thi Thanh Huong<\/strong><\/p>\n<p><em>Faculty of Agriculture and Forestry, University of Tay Nguyen<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>In this study, we conducted an analysis and comparison of the effectiveness of two types of satellite imagery, Sentinel 2A (SE-2A) and PlanetScope, in classifying forest cover in Ta Dung National Park, Vietnam, based on impact levels. The primary objective was to evaluate the accuracy and efficacy of these two types of imagery in providing data on the status and distribution of forest cover, supporting the management and conservation of forest resources. The Support Vector Machine (SVM) algorithm was utilized for classification of both satellite imagery sources. The results revealed differences in classification accuracy and the estimation of the area of various forest cover types between the two data sources. Both types of imagery yielded high reliability in forest cover classification, with an accuracy rate above 90% for forests and other land types and over 80% for each forest cover type (minimally impacted forest, moderately impacted forest, and heavily impacted forest). The study findings indicate that despite its lower resolution, SE-2A imagery still provides a reliable accuracy of 84.5% compared to 87.94% for PlanetScope imagery. PlanetScope is highly reliable but incurs costs and is limited by the availability of only four bands of imagery. Meanwhile, SE-2A offers a larger number of bands, with 13 bands of imagery, and its data is provided free of charge and updated periodically. Therefore, the selection of satellite data sources for research should consider the budget, research objectives, and evaluate the advantages and disadvantages of each source to make an appropriate decision. Furthermore, integrating data from both types of satellite imagery is being explored as a new experimental direction to improve the quality of input data and enhance classification accuracy, thereby potentially increasing the effectiveness of natural resource conservation management, especially in the context of current climate change.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> SE-2A, Planetscope, SVM, forest cover classification, GIS, remote sensing.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u0110\u00c1NH GI\u00c1 TI\u1ec0M N\u0102NG M\u1ede R\u1ed8NG NGU\u1ed2N THU CHI TR\u1ea2 D\u1ecaCH V\u1ee4 M\u00d4I TR\u01af\u1edcNG R\u1eeaNG TRONG HO\u1ea0T \u0110\u1ed8NG KINH DOANH DU L\u1ecaCH SINH TH\u00c1I V\u00c0 NU\u00d4I TR\u1ed2NG TH\u1ee6Y S\u1ea2N T\u1ea0I T\u1ec8NH S\u01a0N LA<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Tr\u1ea7n Th\u1ecb Thu H\u00e0<\/h3>\n<p><em>Vi\u1ec7n<\/em><em> Nghi\u00ean c\u01b0\u0301u Sinh th\u00e1i v\u00e0 M\u00f4i tr\u01b0\u1eddng r\u1eebng &#8211; Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u \u201c\u0110\u00e1nh gi\u00e1 ti\u1ec1m n\u0103ng m\u1edf r\u1ed9ng ngu\u1ed3n thu chi tr\u1ea3 d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng trong ho\u1ea1t \u0111\u1ed9ng kinh doanh du l\u1ecbch sinh th\u00e1i v\u00e0 nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n t\u1ea1i t\u1ec9nh S\u01a1n La\u201d \u0111\u01b0\u1ee3c tri\u1ec3n khai trong b\u1ed1i c\u1ea3nh B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 Ph\u00e1t tri\u1ec3n n\u00f4ng th\u00f4n (NN&amp;PTNT) ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c B\u1ed9, ng\u00e0nh v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb t\u01b0 v\u1ea5n trong vi\u1ec7c x\u00e2y d\u1ef1ng Ngh\u1ecb \u0111\u1ecbnh s\u1eeda \u0111\u00f4\u0309i, b\u00f4\u0309 sung m\u1ed9t s\u1ed1 \u0111i\u1ec1u c\u1ee7a Ngh\u1ecb \u0111\u1ecbnh 156\/2018\/N\u0110-CP v\u1edbi m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3 h\u00f3a m\u1ed9t s\u1ed1 quy \u0111\u1ecbnh t\u1ea1i m\u1ed9t s\u1ed1 \u0111i\u1ec1u, kho\u1ea3n c\u1ee7a Lu\u1eadt L\u00e2m nghi\u1ec7p, \u0111\u1ed3ng th\u1eddi s\u1eeda \u0111\u00f4\u0309i m\u1ed9t s\u1ed1 quy \u0111\u1ecbnh hi\u1ec7n h\u00e0nh li\u00ean quan \u0111\u1ebfn chi tr\u1ea3 d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng (DVMTR), trong \u0111\u00f3 c\u00f3 c\u00e1c quy \u0111\u1ecbnh li\u00ean quan \u0111\u1ebfn 2 l\u0129nh v\u1ef1c: kinh doanh du l\u1ecbch sinh th\u00e1i (DLTS) v\u00e0 nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n (NTTS), nh\u1eb1m \u0111\u1ea3m b\u1ea3o cho c\u00e1c quy \u0111\u1ecbnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong th\u1ef1c t\u1ebf. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, m\u1eb7c d\u00f9 c\u00f3 m\u1ed9t s\u1ed1 thu\u1eadn l\u1ee3i nh\u01b0ng vi\u1ec7c tri\u1ec3n khai c\u01a1 ch\u1ebf chi tr\u1ea3 DVMTR trong l\u0129nh v\u1ef1c kinh doanh DLST v\u00e0 NTTS t\u1ea1i S\u01a1n La hi\u1ec7n nay v\u1eabn c\u00f2n g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n, v\u01b0\u1edbng m\u1eafc c\u1ea3 v\u1ec1 c\u01a1 s\u1edf ph\u00e1p l\u00fd l\u1eabn c\u01a1 s\u1edf th\u1ef1c ti\u1ec5n. Doanh thu DVMTR ti\u1ec1m n\u0103ng t\u1eeb l\u0129nh v\u1ef1c DLST v\u00e0 NTTS \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u1ea7n l\u01b0\u1ee3t l\u00e0 113 tri\u1ec7u \u0111\u1ed3ng\/n\u0103m v\u00e0 410 tri\u1ec7u \u0111\u1ed3ng\/n\u0103m. B\u00ean c\u1ea1nh \u0111\u00f3, k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u0169ng cho th\u1ea5y vi\u1ec7c m\u1edf r\u1ed9ng ngu\u1ed3n thu t\u1eeb chi tr\u1ea3 DVMTR trong l\u0129nh v\u1ef1c kinh doanh DLST v\u00e0 NTTS t\u1ea1i S\u01a1n La c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo m\u1ed9t l\u1ed9 tr\u00ecnh th\u00edch h\u1ee3p, trong \u0111\u00f3 giai \u0111o\u1ea1n 2023 &#8211; 2025 \u01b0u ti\u00ean vi\u1ec7c th\u1ef1c hi\u1ec7n chi tr\u1ea3 DVMTR v\u1edbi h\u00ecnh th\u1ee9c gi\u00e1n ti\u1ebfp; t\u1eeb n\u0103m 2026 tr\u1edf \u0111i c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng th\u00eam h\u00ecnh th\u1ee9c chi tr\u1ea3 tr\u1ef1c ti\u1ebfp khi c\u00e1c quy \u0111\u1ecbnh v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd \u0111\u1ed1i v\u1edbi h\u00ecnh th\u1ee9c chi tr\u1ea3 n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eeda \u0111\u00f4\u0309i, b\u00f4\u0309 sung.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Chi tr\u1ea3 d\u1ecbch v\u1ee5 m\u00f4i tr\u01b0\u1eddng r\u1eebng, du l\u1ecbch sinh th\u00e1i, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n, S\u01a1n La.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>ASSESSMENT OF THE POTENTIAL TO EXPAND PAYMENTS<\/strong><\/p>\n<p><strong>FOR FOREST ENVIRONMENTAL SERVICES FROM ECOTOURISM AND AQUACULTURE IN SON LA PROVINCE<\/strong><\/p>\n<p><strong>Tran Thi Thu Ha<\/strong><\/p>\n<p><em>Forest Institute for Forest Ecology and Environment<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p>The study \u201cAssessment of the potential to expand payments for forest environmental services from ecotourism and aquaculture in Son La province\u201d was implemented in the context that the Ministry of Agriculture and Rural Development (MARD) is cooperating with other ministries, sectors and consulting organizations in the development of the Draft Decree amending and supplementing a number of articles of the Government&#8217;s Decree 156\/2018\/ND-CP with the goal of specifying a number of provisions in a number of articles, clauses of the Law on Forestry, and amend a number of current regulations related to payment for forest environment, including those related to 2 areas: ecotourism business and aquaculture, to ensure that these regulations can be applied in the practice. The study result showed that despite a number of favorable factors, the expansion of PFES in the ecotourism and aquaculture in the province is still facing many difficulties in practice. The total potential PFES revenues in ecotourism business and aquaculture areas were estimated at VND 113 million and<\/p>\n<p>410 million\u00a0 per year, respectively. The study\u00a0 results also showed that it\u2019s critical to expand PFES in ecotourism and aquaculture following an appropriate roadmap, in which, indirect payment mode will be prioritized to applied in the period of 2023 &#8211; 2025 and indirect payment mode will be added from 2026 onwards when legal regulations for this payment mode shall be in place.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Payments for ecosystem services, tourism business, aquaculture, Son La<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>KINH NGHI\u1ec6M C\u1ee6A TH\u1ebe GI\u1edaI V\u1ec0 CH\u1ec8 S\u1ed0 M\u00d4I TR\u01af\u1edcNG R\u1eeaNG<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Nguy\u1ec5n Ho\u00e0ng Ti\u1ec7p1, V\u00f5 \u0110\u1ea1i H\u1ea3i2, Nguy\u1ec5n Duy B\u00ecnh3<\/h3>\n<p><em>1<\/em><em>V\u0103n ph\u00f2ng Ch\u01b0\u0301ng ch\u1ec9 Qu\u1ea3n l\u00fd r\u1eebng b\u1ec1n v\u1eefng 2Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam 3H\u1ea1t Ki\u1ec3m l\u00e2m T\u1ee7a Ch\u00f9a, \u0110i\u1ec7n Bi\u00ean<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>K\u1ebft qu\u1ea3 t\u00f4\u0309ng h\u1ee3p v\u00e0 ph\u00e2n t\u00edch 23 t\u00e0i li\u1ec7u tr\u00ean th\u1ebf gi\u1edbi cho th\u1ea5y c\u00e1c ch\u1ec9 s\u1ed1 c\u00f3 li\u00ean quan \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng r\u1eebng \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean th\u1ebf gi\u1edbi l\u00e0 kh\u00e1 \u0111a d\u1ea1ng, c\u00e1c ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng r\u1eebng tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 nh\u00f3m th\u00e0nh 4 nh\u00f3m ch\u00ednh nh\u01b0 sau: i) Nh\u00f3m 1: C\u00e1c ch\u1ec9 s\u1ed1 t\u00f4\u0309ng h\u1ee3p; ii) Nh\u00f3m 2: C\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 qu\u1ea3n l\u00fd r\u1eebng v\u00e0 qu\u1ea3n l\u00fd r\u1eebng b\u1ec1n v\u1eefng; iii) Nh\u00f3m 3: C\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 ph\u00e1t tri\u1ec3n r\u1eebng; iv) Nh\u00f3m 4: C\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 s\u1eed d\u1ee5ng r\u1eebng. C\u00e1c ch\u1ec9 s\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf c\u00e1c quy m\u00f4 kh\u00e1c nhau: t\u1ec9nh, qu\u1ed1c gia, v\u00f9ng, to\u00e0n th\u1ebf gi\u1edbi v\u00e0 t\u00f9y theo m\u1ee5c \u0111\u00edch c\u1ee7a ng\u01b0\u1eddi s\u1eed d\u1ee5ng. K\u00e8m theo c\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y, c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00f9ng h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t &#8211; b\u00e1o c\u00e1o &#8211; th\u1ea9m \u0111\u1ecbnh (MRV) c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u1eb1m ph\u1ee5c v\u1ee5 cho m\u1ee5c ti\u00eau gi\u00e1m s\u00e1t v\u1ec1 m\u00f4i tr\u01b0\u1eddng r\u1eebng. C\u1ea7n ph\u00e2n t\u00edch v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n nh\u1eefng k\u1ebft qu\u1ea3 \u0111\u00e3 c\u00f3 \u1edf Vi\u1ec7t Nam, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c v\u0103n b\u1ea3n quy ph\u1ea1m ph\u00e1p lu\u1eadt v\u1ec1 c\u00e1c b\u1ed9 ch\u1ec9 s\u1ed1 c\u00f3 li\u00ean quan \u0111\u00e3 c\u00f3, k\u1ebft h\u1ee3p v\u1edbi kinh nghi\u1ec7m tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec3 c\u00f3 \u0111\u1ecbnh h\u01b0\u1edbng cho c\u00e1c ch\u1ec9 s\u1ed1 c\u1ee5 th\u1ec3 v\u00e0 c\u1ea5u tr\u00fac b\u1ed9 ch\u1ec9 s\u1ed1, x\u00e2y d\u1ef1ng h\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh, \u00e1p d\u1ee5ng th\u1eed v\u00e0 \u0111\u01b0a v\u00e0o th\u1ef1c hi\u1ec7n.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>M\u00f4i tr\u01b0\u1eddng r\u1eebng, ch\u1ec9 s\u1ed1 m\u00f4i tr\u01b0\u1eddng r\u1eebng, kinh nghi\u1ec7m th\u1ebf gi\u1edbi<\/p>\n<p>&nbsp;<\/p>\n<p><strong>INTERNATIONAL EXPERIENCE ON FOREST ENVIRONMENT INDICATORS<\/strong><\/p>\n<p><strong>Nguyen Hoang Tiep1, Vo Dai Hai2, Nguyen Duy Binh3<\/strong><\/p>\n<p><em>1<\/em><em>Vietnam Forest Certification Office<\/em><\/p>\n<p><em>2<\/em><em>Vietnamese Academy of Forrest Sciences<\/em><\/p>\n<p><em>3<\/em><em>Tua Chua Forest Ranger Station, Dien Bien province<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p>The results from synthesis and analysis of 23 documents over the world show that the indicators related to the forest environment that have been widely used and diverse. These indicators can be grouped into 4 main groups as follows: i) Group 1: General indicators; ii) Group 2: Indicators related to forest management and sustainable forest management; iii) Group 3: Indicators related to forest development; iv) Group 4: Indicators related to forest use. Based on the purpose of used, these indicators are used at different scales: province level, country level, region level and world level. Together with these indicators, databases and MRV systems have also been established for monitoring of forest environment. It is necessary to have a comprehensively analyze and evaluate existing forest environment indicator in Vietnam, especially existing legal documents on relevant indicators, combined with international experience, in order to develop orientation for structure and specific indicators, developing instructions for calculation, testing and implementation.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> Forest environment, forest environment indicator, international experience<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>NGHI\u00caN C\u1ee8U NH\u00c2N SINH KH\u1ed0I VI KHU\u1ea8N<\/h2>\n<p><strong><em>Chitinophaga<\/em><\/strong> <strong><em>varians,<\/em><\/strong> <strong><em>Bacill<\/em><\/strong><strong><em>us<\/em><\/strong> <strong><em>velezensis<\/em><\/strong> <strong>v\u00e0<\/strong> <strong><em>B. valismortis<\/em><\/strong><\/p>\n<p><strong><em>\u00a0<\/em><\/strong><\/p>\n<h3>Qu\u00e1ch \u0110\u00ecnh Huy, B\u00f9i Th\u1ecb Th\u1ee7y, Ho\u00e0ng Trung Hi\u1ebfu, Ho\u00e0ng Th\u1ecb T\u00e1m, Nguy\u1ec5n Th\u1ecb H\u1eb1ng, \u0110o\u00e0n Th\u1ecb B\u00edch Ng\u1ecdc<\/h3>\n<p><em>Vi\u1ec7n<\/em><em> Nghi\u00ean c\u01b0\u0301u C\u00f4ng nghi\u1ec7p r\u1eebng, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>C\u00e1c ch\u1ee7ng vi khu\u1ea9n <em>Chitinophaga varians <\/em>(\u0110K 5), <em>Bacillus velezensis <\/em>(\u0110K 7) \u0111\u01b0\u1ee3c ph\u00e2n l\u1eadp t\u1eeb g\u1ed7 \u0111\u0169a t\u1ea1i t\u1ec9nh B\u1eafc Giang v\u00e0 <em>B. valismortis <\/em>(\u0110K 68) \u0111\u01b0\u1ee3c ph\u00e2n l\u1eadp t\u1eeb v\u00e1n b\u00f3c g\u1ed7 th\u00f4ng t\u1ea1i t\u1ec9nh L\u1ea1ng S\u01a1n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ed1i kh\u00e1ng n\u1ea5m g\u00e2y h\u1ea1i g\u1ed7 sau khai th\u00e1c. Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p cho vi\u1ec7c nh\u00e2n sinh kh\u1ed1i ba ch\u1ee7ng vi khu\u1ea9n n\u00eau tr\u00ean. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9, m\u00f4i tr\u01b0\u1eddng, pH v\u00e0 th\u1eddi gian nu\u00f4i c\u1ea5y l\u00e0 \u0111i\u1ec1u ki\u1ec7n \u1ea3nh h\u01b0\u1edfng r\u00f5 \u0111\u1ebfn s\u1ef1 sinh tr\u01b0\u1edfng, t\u0103ng sinh kh\u1ed1i c\u1ee7a c\u00e1c ch\u1ee7ng vi khu\u1ea9n. M\u00f4i tr\u01b0\u1eddng c\u1ea3i ti\u1ebfn c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 nh\u00e2n sinh kh\u1ed1i c\u00e1c ch\u1ee7ng vi khu\u1ea9n <em>C. varians <\/em>(\u0110K 5),<\/p>\n<ol>\n<li><em> velezensis <\/em>(\u0110K 7) v\u00e0 <em>B. valismortis <\/em>(\u0110K 68). \u0110i\u1ec1u ki\u1ec7n nh\u00e2n sinh kh\u1ed1i l\u1ef1a ch\u1ecdn bao g\u1ed3m pH 8, nhi\u1ec7t \u0111\u1ed9 35oC, th\u1eddi gian nh\u00e2n nu\u00f4i 72 gi\u1edd, tr\u00ean m\u00e1y l\u1eafc 200 v\u00f2ng\/ph\u00fat. M\u1eadt \u0111\u1ed9 t\u1ebf b\u00e0o c\u1ee7a ch\u1ee7ng \u0110K 5, \u0110K 7 v\u00e0 \u0110K 68 \u0111\u1ea1t l\u1ea7n l\u01b0\u1ee3t l\u00e0 3,1\uf0b4109, 2,8\uf0b4109 v\u00e0 9,1\uf0b4108 (CFU\/ml).<\/li>\n<\/ol>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong><em>Chitinophaga<\/em> <em>varians<\/em>, <em>Bacillus velezensis<\/em>, <em>B. valismortis<\/em>, nh\u00e2n sinh kh\u1ed1i.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>BIOMASS PRODUCTION OF <em>Chitinophaga varians, Bacillus velezensis<\/em><\/strong><\/p>\n<p><strong>and <em>B. valismortis<\/em><\/strong><\/p>\n<p><strong>Quach<\/strong> <strong>Dinh Huy, Bui Thi Thuy, Hoang Trung Hieu, Hoang Thi Tam, Nguyen Thi Hang, Doan Thi Bich Ngoc<\/strong><\/p>\n<p><em>Research Institute of Forest Industry, Vietnamese Academy of Forest Sciences<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p><em>Chitinophaga varians <\/em>(\u0110K 5) and <em>Bacillus velezensis <\/em>(\u0110K 7) were isolated from chopstick wood in Bac Giang province and <em>B. vallismortis <\/em>(\u0110K 68) was isolated from pine verneer board in Lang Son province has been identified as capable of antifungal to post-harvest wood. This study was carried out to the determination of optimal culture conditions for biomass growth of bacterial strains. Research results showed that culture temperature, culture medium, pH and culture duration had significant influence on the biomass growth of bacterial strains. The medium with glucose, peptone and NaCl could be used for the biomass production of antifungal bacterial species <em>C. varians <\/em>(\u0110K 5), <em>B. velezensis <\/em>(\u0110K 7) and <em>B. vallismortis <\/em>(\u0110K 68). Selected biomass production conditions included pH 8 of liquid culture, 35oC of incubation, 72 hours of culture duration, at the rotation speed of 200 rpm, as a biomass of \u0110K 5, \u0110K 7 and \u0110K 68 strains reached 3,1 \uf0b4109, 2,8 \uf0b4109 v\u00e0 9,1\uf0b4108 (CFU\/ml), respectively.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> <em>Chitinophaga varians, Bacillus velezensis, B. valismortis, Biomass production.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><em>\u00a0<\/em><\/p>\n<h2>NGHI\u00caN C\u1ee8U PH\u00c2N V\u00d9NG NGUY C\u01a0 CH\u00c1Y R\u1eeaNG T\u1ea0I T\u1ec8NH TH\u00c1I NGUY\u00caN<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Nguy\u1ec5n \u0110\u0103ng C\u01b0\u1eddng*, Nguy\u1ec5n Tu\u1ea5n H\u00f9ng, Nguy\u1ec5n C\u00f4ng Hoan<\/h3>\n<p><em>Khoa L\u00e2m nghi\u1ec7p, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m Th\u00e1i Nguy\u00ean<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i t\u1ec9nh Th\u00e1i Nguy\u00ean, m\u1ee5c ti\u00eau nghi\u00ean c\u1ee9u l\u00e0 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c b\u1ea3n \u0111\u1ed3 ph\u00e2n c\u1ea5p nguy c\u01a1 ch\u00e1y r\u1eebng. M\u00f9a ch\u00e1y r\u1eebng t\u1ec9nh Th\u00e1i Nguy\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 t\u1eeb th\u00e1ng 11 n\u0103m tr\u01b0\u1edbc \u0111\u1ebfn th\u00e1ng 4 c\u1ee7a n\u0103m sau. Nghi\u00ean c\u1ee9u \u0111\u00e3 ti\u1ebfn h\u00e0nh l\u1eadp 150 \u00f4 ti\u00eau chu\u1ea9n (OTC) c\u00f3 di\u1ec7n t\u00edch 1.000 m2, 5 \u00f4 d\u1ea1ng b\u1ea3n c\u1ea5p 1 (ODB) \u0111\u01b0\u1ee3c l\u1eadp trong m\u1ed7i OTC \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt li\u1ec7u ch\u00e1y (VLC). VLC sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111em s\u1ea5y trong ph\u00f2ng th\u00ed nghi\u1ec7m t\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 \u1ea9m VLC. Ph\u01b0\u01a1ng ph\u00e1p AHP \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tr\u1ecdng s\u1ed1 cho 6 l\u1edbp b\u1ea3n \u0111\u1ed3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi 6 nh\u00e2n t\u1ed1 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng t\u1edbi nguy c\u01a1 ch\u00e1y r\u1eebng, bao g\u1ed3m: \u0110\u1ed9 \u1ea9m v\u1eadt li\u1ec7u ch\u00e1y \u0111\u01b0\u1ee3c ph\u00e2n c\u1ea5p theo tr\u1ea1ng th\u00e1i r\u1eebng, \u0111\u1ed9 cao, \u0111\u1ed9 d\u1ed1c, kho\u1ea3ng c\u00e1ch \u0111\u1ebfn \u0111\u01b0\u1eddng, kho\u1ea3ng c\u00e1ch \u0111\u1ebfn c\u00e1c khu v\u1ef1c \u0111\u00f4ng d\u00e2n c\u01b0, kho\u1ea3ng c\u00e1ch \u0111\u1ebfn \u0111\u1ea5t canh t\u00e1c n\u00f4ng nghi\u1ec7p tr\u00ean \u0111\u1ea5t l\u00e2m nghi\u1ec7p. C\u00e1c l\u1edbp \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo 5 c\u1ea5p ch\u00e1y r\u1eebng t\u1eeb 1 \u0111\u1ebfn 5. Trong \u0111\u00f3, 1 l\u00e0 khu v\u1ef1c c\u00f3 nguy c\u01a1 th\u1ea5p\/kh\u00f4ng kh\u1ea3 n\u0103ng ch\u00e1y v\u00e0 5 l\u00e0 khu v\u1ef1c c\u00f3 nguy c\u01a1 ch\u00e1y r\u1eebng r\u1ea5t cao\/c\u1ef1c k\u1ef3 nguy hi\u1ec3m. Trong \u0111\u00f3, c\u00e1c nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t t\u1edbi nguy c\u01a1 ch\u00e1y r\u1eebng l\u00e0 lo\u1ea1i r\u1eebng, kho\u1ea3ng c\u00e1ch \u0111\u1ebfn n\u01b0\u01a1ng r\u1eaby, tr\u1ecdng s\u1ed1 c\u1ee7a c\u00e1c nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t n\u00e0y dao \u0111\u1ed9ng t\u1eeb 0,4 xu\u1ed1ng t\u1edbi 0,16, th\u1ea5p nh\u1ea5t l\u00e0 nh\u00e2n t\u1ed1 \u0111\u1ed9 d\u1ed1c v\u1edbi tr\u1ecdng s\u1ed1 0,09. B\u1ea3n \u0111\u1ed3 ph\u00e2n c\u1ea5p nguy c\u01a1 ch\u00e1y r\u1eebng t\u1ec9nh Th\u00e1i Nguy\u00ean cho th\u1ea5y di\u1ec7n t\u00edch v\u1edbi c\u1ea5p nguy c\u01a1 ch\u00e1y cao \u0111\u1ebfn c\u1ef1c k\u1ef3 nguy hi\u1ec3m l\u00e0 117.405,9 ha chi\u1ebfm 63,8% t\u00f4\u0309ng di\u1ec7n t\u00edch r\u1eebng.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>AHP, ch\u00e1y r\u1eebng, GIS, nguy c\u01a1 ch\u00e1y r\u1eebng, v\u1eadt li\u1ec7u ch\u00e1y<\/p>\n<p>&nbsp;<\/p>\n<p><strong>STUDY<\/strong> <strong>ON FOREST FIRE RISK ZONATION IN THAI NGUYEN PROVINCE<\/strong><\/p>\n<p><strong>Nguyen Dang Cuong*, Nguyen Tuan Hung, Nguyen Cong Hoan<\/strong><\/p>\n<p><em>Faculty of Forestry, Thai Nguyen University of Agriculture and Forestry<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>SUMMARY<\/strong><\/p>\n<p>The research was conducted in Thai Nguyen province, aiming to build a fire risk zone map. The forest fire season in Thai Nguyen province is identified from November of the previous year to April of the following year. The study established 150 sample plots (OTCs) with an area of 1,000 m2. Within each OTC, 5 subplots (ODBs) were established to determine the volume of combustible material (VLC). The VLC was then dried in the laboratory to determine its moisture content. The Analytic Hierarchy Process (AHP) method was applied to determine the weights for the 6 map layers corresponding to 6 factors that could affect forest fire risk, including: Moisture content of combustible material classified by forest types, elevation, slope, distance to roads, distance to populated areas, and distance to agricultural cultivation areas on forestry land. The layers were classified into 5 levels of fire risk from 1 to 5, where 1 represents areas with low or no fire risk and 5 represents areas with very high\/extreme fire risk. Among these factors, the most influential factors on forest fire risk are forest type and distance to farmland, with weights ranging from 0.4 to 0.16, and the lowest is slope factor with a weight of 0.09. The forest fire risk zoning map of Thai Nguyen province showed an area with high to extremely dangerous fire risk of 117,405.9 hectares, accounting for 63.8% of the total forest area.<\/p>\n<p><strong><em>Keywords:<\/em><\/strong> AHP, forest fire, GIS, Fire risk, combustible material<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>PH\u00c2N T\u00cdCH NGU\u1ed2N CUNG G\u1ed6 NGUY\u00caN LI\u1ec6U TRONG N\u01af\u1edaC PH\u1ee4C V\u1ee4 C\u00d4NG NGHI\u1ec6P CH\u1ebe BI\u1ebeN G\u1ed6 GIAI \u0110O\u1ea0N 2011 &#8211; 2020<\/h2>\n<p><strong>\u00a0<\/strong><\/p>\n<h3>Tr\u1ea7n Thanh Cao1, Ho\u00e0ng Li\u00ean S\u01a1n2<\/h3>\n<p><em>1<\/em><em>Vi\u1ec7n<\/em><em> Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9<\/em><\/p>\n<p><em>2<\/em><em>Trung t\u00e2m Nghi\u00ean c\u01b0\u0301u Kinh t\u1ebf L\u00e2m nghi\u1ec7p<\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><strong>T\u00d3M<\/strong> <strong>T\u1eaeT<\/strong><\/p>\n<p>G\u1ed7 khai th\u00e1c trong n\u01b0\u1edbc l\u00e0 ngu\u1ed3n nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o quan tr\u1ecdng cho ng\u00e0nh ch\u1ebf bi\u1ebfn g\u1ed7, ph\u1ee5c v\u1ee5 th\u1ecb tr\u01b0\u1eddng xu\u1ea5t kh\u1ea9u v\u00e0 ti\u00eau d\u00f9ng n\u1ed9i \u0111\u1ecba. T\u00ednh \u0111\u1ebfn ng\u00e0y 31\/12\/2020, t\u00f4\u0309ng di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng t\u1eadp trung cung c\u1ea5p nguy\u00ean li\u1ec7u g\u1ed7 l\u00e0 3,691 tri\u1ec7u ha, chi\u1ebfm 47,2% t\u00f4\u0309ng di\u1ec7n t\u00edch \u0111\u1ea5t r\u1eebng s\u1ea3n xu\u1ea5t. S\u1ef1 bi\u1ebfn \u0111\u1ed9ng di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng nguy\u00ean li\u1ec7u trong giai \u0111o\u1ea1n 2011 &#8211; 2020 l\u00e0 kh\u00e1 l\u1edbn, kho\u1ea3ng 1,3 tri\u1ec7u ha, nh\u01b0ng ch\u1ee7 y\u00eau t\u1eadp trung \u1edf giai \u0111o\u1ea1n 2011 &#8211; 2016. B\u00ecnh qu\u00e2n t\u00f4\u0309ng di\u1ec7n t\u00edch c\u00f3 kh\u1ea3 n\u0103ng khai th\u00e1c c\u1ee7a 8 V\u00f9ng kinh t\u1ebf sinh th\u00e1i l\u00e2m nghi\u1ec7p (KTSTLN) l\u00e0 2,4 tri\u1ec7u ha\/n\u0103m. \u0110\u00f4ng B\u1eafc, B\u1eafc Trung B\u1ed9 v\u00e0 Nam Trung B\u1ed9 l\u00e0 3 v\u00f9ng ch\u1ee7 l\u1ef1c cung c\u1ea5p g\u1ed7 nguy\u00ean li\u1ec7u cho th\u1ecb tr\u01b0\u1eddng. \u0110\u1ebfn n\u0103m 2020, c\u00e1c lo\u00e0i keo \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1ed3ng nhi\u1ec1u nh\u1ea5t v\u1edbi t\u00f4\u0309ng di\u1ec7n t\u00edch kho\u1ea3ng 2,1 tri\u1ec7u ha, chi\u1ebfm 56,8% trong t\u00f4\u0309ng s\u1ed1 di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng s\u1ea3n xu\u1ea5t c\u1ee7a c\u1ea3 n\u01b0\u1edbc. C\u00e1c lo\u00e0i keo, b\u1ea1ch \u0111\u00e0n v\u00e0 th\u00f4ng c\u00e1c lo\u1ea1i \u0111\u00e3 cung c\u1ea5p \u0111\u01b0\u1ee3c 75% s\u1ea3n l\u01b0\u1ee3ng g\u1ed7 r\u1eebng tr\u1ed3ng t\u1eadp trung khai th\u00e1c h\u00e0ng n\u0103m, t\u01b0\u01a1ng \u1ee9ng kho\u1ea3ng 19 tri\u1ec7u m3\u00a0g\u1ed7 nguy\u00ean li\u1ec7u. Cao su v\u00e0 c\u00e2y b\u1ea3n \u0111\u1ecba c\u00f2n l\u1ea1i cung c\u1ea5p \u0111\u01b0\u1ee3c kho\u1ea3ng 1,4 tri\u1ec7u m3\u00a0g\u1ed7 cao su tr\u1ed3ng tr\u00ean \u0111\u1ea5t l\u00e2m nghi\u1ec7p v\u00e0 4,9 tri\u1ec7u m3\u00a0c\u1ee7a c\u00e1c lo\u1ea1i c\u00e2y r\u1eebng tr\u1ed3ng kh\u00e1c.<\/p>\n<p><strong><em>T\u1eeb kh\u00f3a: <\/em><\/strong>Di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng, lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng, ngu\u1ed3n cung g\u1ed7 nguy\u00ean li\u1ec7u trong n\u01b0\u1edbc, s\u1ea3n l\u01b0\u1ee3ng khai th\u00e1c, v\u00f9ng sinh th\u00e1i l\u00e2m nghi\u1ec7p.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>ANALYSIS OF DOMESTIC SUPPLY OF WOOD MATERIALS FOR WOOD PROCESSING INDUSTRY IN THE PERIOD OF 2011 &#8211; 2020<\/strong><\/p>\n<p><strong>Tran Thanh Cao1, Hoang Lien Son2<\/strong><\/p>\n<p><em>1 <\/em><em>Forest Science Institute of South Viet Nam<\/em><\/p>\n<p><em>2 <\/em><em>Forestry<\/em> <em>Economics Research Centre<\/em><\/p>\n<p><strong>ABSTRACT<\/strong><\/p>\n<p>Domestic harvested wood is an important source of input materials for the wood processing industry, serving the export market and domestic consumption. Until December 31, 2020, the total area of concentrated forest plantation for providing wood materials was 3.691 million hectares, accounting for 47.2% of the total area of production forest land. The fluctuation of material plantation forest area in the period of 2011 &#8211; 2020 is quite large, about 1.3 million hectares, but mainly expanded in the period of 2011 &#8211; 2016. The average total exploitable area of the 8 Forestry Ecological was 2.4 million hectares\/year. The Northeast, North Central and South Central were the three main regions supplying wood raw materials to domestic market. By 2020, Acacia species have been planted mostly, about 2.1 million hectares, accounting for 56.8% of the total production forest area of Vietnam. Acacia, Eucalyptus and Pine species have provided 75% of the annual output of wood from concentrated forest plantation, equivalent to about 19 million m3\u00a0of wood raw materials. Rubber and native species have provided about 1.4 million m3\u00a0of rubber from forestry land and 4.9 million m3\u00a0of other planted forest trees.<\/p>\n<p><strong><em>Keywords<\/em><\/strong>: Plantation area, afforestation species, domestic wood raw material supply, exploited \u00a0output, forestry ecological zone.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vietnam Journal of Forest Science Number 2-2024 1. Nghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn c\u00e2y tr\u1ed9i G\u1ee5 lau (Sindora tonkinensis A. Chev. Ex K. &amp; S. S. Larsen) t\u1ea1i m\u1ed9t s\u1ed1 t\u1ec9nh duy\u00ean h\u1ea3i mi\u1ec1n Trung Research on selection of plus trees of Sindora tonkinensis A. Chev. Ex K. &amp; S. S. Larsen in several Central Coast [&hellip;]<\/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\/143"}],"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=143"}],"version-history":[{"count":0,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/143\/revisions"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}