{"id":1264,"date":"2014-10-28T11:06:18","date_gmt":"2014-10-28T04:06:18","guid":{"rendered":"http:\/\/vafs.gov.vn\/en\/?p=1264"},"modified":"2019-09-26T10:43:15","modified_gmt":"2019-09-26T03:43:15","slug":"vietnam-journal-of-forest-science-number-3-2014","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/vietnam-journal-of-forest-science-number-3-2014\/","title":{"rendered":"Vietnam Journal of Forest Science Number 3-2014"},"content":{"rendered":"<p style=\"text-align: center;\"><a href=\"http:\/\/vafs.gov.vn\/en\/wp-content\/uploads\/sites\/3\/2014\/10\/2014-10-21-11.13.16.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-1265\" src=\"http:\/\/vafs.gov.vn\/en\/wp-content\/uploads\/sites\/3\/2014\/10\/2014-10-21-11.13.16-1024x830.jpg\" alt=\"2014-10-21 11.13.16\" width=\"717\" height=\"581\" srcset=\"https:\/\/vafs.gov.vn\/en\/wp-content\/uploads\/sites\/3\/2014\/10\/2014-10-21-11.13.16-1024x830.jpg 1024w, https:\/\/vafs.gov.vn\/en\/wp-content\/uploads\/sites\/3\/2014\/10\/2014-10-21-11.13.16-300x243.jpg 300w, https:\/\/vafs.gov.vn\/en\/wp-content\/uploads\/sites\/3\/2014\/10\/2014-10-21-11.13.16.jpg 1701w\" sizes=\"(max-width: 717px) 100vw, 717px\" \/><\/a><\/p>\n<table border=\"0\" width=\"101%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u kh\u1ea3o nghi\u1ec7m m\u1ed9t s\u1ed1 d\u00f2ng c\u00e2y Macadamia tr\u00ean \u0111\u1ecba b\u00e0n t\u1ec9nh Lai Ch\u00e2u<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">B\u00f9i Thanh H\u1eb1ng,<br \/>\nPh\u1ea1m Quang Tuy\u1ebfn, Nguy\u1ec5n Th\u1ecb V\u00e2n Anh,\u00a0 \u0110\u1ed7 Th\u1ecb Thanh H\u00e0,<br \/>\nTr\u1ea7n Anh H\u1ea3i<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Initial results of testing of macadamia clones in Lai Chau province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3373<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>\u0110\u00e1nh gi\u00e1 \u0111a d\u1ea1ng di truy\u1ec1n c\u00e1c xu\u1ea5t x\u1ee9 c\u00e2y Lai\u00a0 (<i>Aleurites moluccana<\/i> (L.) Willd) b\u1eb1ng ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed RAPD<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Tr\u1ea7n \u0110\u1ee9c V\u01b0\u1ee3ng,<br \/>\nB\u00f9i Ng\u1ecdc Quang,<br \/>\nL\u01b0\u01a1ng V\u0103n Ti\u1ebfn,<br \/>\nHo\u00e0ng V\u0103n Th\u1eafng,<br \/>\nTr\u1ea7n H\u1ed3 Quang<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Study genetic diversity of <i>Aleurites moluccana<\/i> (L.) Willd\u2019s provenances by RAPD markers<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3382<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>Nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac t\u1ea7ng c\u00e2y cao r\u1eebng IIA t\u1ea1i khu v\u1ef1c r\u1eebng ph\u00f2ng h\u1ed9 Y\u00ean L\u1eadp, t\u1ec9nh Qu\u1ea3ng Ninh<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Vo\u0303 \u0110a\u0323i Ha\u0309i<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Research on structure of high trees of forest status IIA in protection forest of Yen Lap reservoir, Quang Ninh province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3390<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>\u0110\u1eb7c \u0111i\u1ec3m l\u00e2m h\u1ecdc\u00a0 c\u1ee7a r\u1eebng k\u00edn th\u01b0\u1eddng xanh h\u01a1i \u1ea9m nhi\u1ec7t \u0111\u1edbi\u00a0 \u1edf khu v\u1ef1c M\u00e3 \u0110\u00e0 t\u1ec9nh \u0110\u1ed3ng Nai<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Ph\u00f9ng V\u0103n Khang<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Study of silviculture characteristic of tropical humid evergreen broadleaf closed forest in Ma Da region, Dong Nai province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3399<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>Nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac\u00a0 r\u1eebng t\u1ef1 nhi\u00ean l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh\u00a0 t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia V\u0169 Quang &#8211; H\u00e0 T\u0129nh<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n, Tr\u1ea7n Th\u1ecb Thu H\u00e0<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Research on characteristics of evergreen broad &#8211; leaved natural forests in the Vu Quang National Park, Ha Tinh province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3408<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>\u0110\u1ed9ng th\u00e1i c\u1ea5u tr\u00fac r\u1eebng t\u1ef1 nhi\u00ean l\u00e1 r\u1ed9ng th\u01b0\u1eddng xanh t\u1ea1i V\u01b0\u1eddn Qu\u1ed1c gia Ba B\u1ec3<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n, Tr\u1ea7n V\u0103n Con,<br \/>\nTr\u1ea7n Th\u1ecb Thu H\u00e0<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Dynamic structure of evergreen broad &#8211; leaved natural forests in the Ba Be National Park<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3417<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>\u0110\u1eb7c \u0111i\u1ec3m ph\u00e2n b\u1ed1, sinh th\u00e1i\u00a0 c\u1ee7a Ho\u00e0ng li\u00ean \u00f4 r\u00f4 (<i>Mahonia nepalensis<\/i> DC.),\u00a0 B\u00e1 b\u1ec7nh (<i>Eurycoma longifolia<\/i> Jack.) \u1edf L\u00e2m \u0110\u1ed3ng<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Nguy\u1ec5n Th\u00e0nh M\u1ebfn, Ho\u00e0ng Thanh Tr\u01b0\u1eddng,\u00a0 Hu\u1ef3nh Th\u1ecb M\u1ef9 Trang, Nguy\u1ec5n \u0110\u1eb7ng Th\u00f4ng<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Distributive and ecological characters of <i>Mahonia nepalensis<\/i> and <i>Eurycoma longifolia<\/i> in Lam Dong, Vietnam<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3424<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>\u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 tr\u1ed3ng r\u1eebng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a r\u1eebng tr\u1ed3ng Sao \u0111en (<i>Hopea odorata<\/i>) v\u00e0 D\u1ea7u r\u00e1i (<i>Dipterocarpus alatus<\/i>) trong c\u00e1c m\u00f4 h\u00ecnh ph\u1ee5c h\u1ed3i r\u1eebng t\u1ea1i Khu b\u1ea3o t\u1ed3n thi\u00ean nhi\u00ean \u0110\u1ed3ng Nai<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">T\u00f4 B\u00e1 Thanh,<br \/>\nB\u00f9i Vi\u1ec7t H\u1ea3i,<br \/>\nPh\u1ea1m Xu\u00e2n Ho\u00e0n<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Effects of planting factors in growth of dipterocarpaceae\u2019s species in forest restoration models in Dong Nai province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3433<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>Kh\u1ea3 n\u0103ng cung c\u1ea5p g\u1ed7 l\u1edbn\u00a0 c\u1ee7a r\u1eebng tr\u1ed3ng Keo l\u00e1 tr\u00e0m<br \/>\n11 n\u0103m tu\u1ed5i \u1edf \u0110\u1ed3ng Nai<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Nguy\u1ec5n Huy S\u01a1n, Nguy\u1ec5n Thanh Minh<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Assesement of growth<br \/>\nof 11 &#8211; year &#8211; old <i>Acacia auriculiformis<\/i> plantation<br \/>\nfor saw &#8211; log production in Dong Nai province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3442<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>Ti\u1ec1m n\u0103ng ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh trong l\u0129nh v\u1ef1c s\u1eed d\u1ee5ng \u0111\u1ea5t, thay \u0111\u1ed5i s\u1eed d\u1ee5ng \u0111\u1ea5t v\u00e0 l\u00e2m nghi\u1ec7p giai \u0111o\u1ea1n 2010 &#8211; 2020\u00a0 \u1edf Vi\u1ec7t Nam<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">V\u0169 T\u1ea5n Ph\u01b0\u01a1ng,<br \/>\n\u0110\u1ed7 Tr\u1ecdng Ho\u00e0n<br \/>\nv\u00e0 Ho\u00e0ng Xu\u00e2n T\u00fd<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Potential of green house gases emission reduction in land use, land use change and forestry for a period of 2010 &#8211; 2020 in Vietnam<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3451<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>S\u1eed d\u1ee5ng ch\u1ea5t Agri &#8211; Stabi v\u00e0 v\u00f4i\u00a0 trong c\u1ea3i t\u1ea1o \u0111\u1ea5t ph\u00e8n \u0111\u1ec3 tr\u1ed3ng r\u1eebng tr\u00e0m v\u00e0 b\u1ea1ch \u0111\u00e0n \u1edf Th\u1ea1nh H\u00f3a, Long An<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Ph\u1ea1m Th\u1ebf D\u0169ng,<br \/>\nKi\u1ec1u Tu\u1ea5n \u0110\u1ea1t<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">The using agri &#8211; stabi and lime to improve of acid sulphate soil for melaleuca and eucalyptus reforestation in Thanh Hoa, Long An province<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3461<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>X\u00e1c \u0111\u1ecbnh c\u00e1c ngu\u1ed3n dinh d\u01b0\u1ee1ng c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p cho \u0111\u1ea5t trong tr\u1ed3ng r\u1eebng Keo l\u00e1 tr\u00e0m (<i>A.auriculiformis<\/i>)\u00a0 \u1edf Ph\u00fa B\u00ecnh, B\u00ecnh D\u01b0\u01a1ng<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t,<br \/>\nPha\u0323m Th\u00ea\u0301 Du\u0303ng,<br \/>\nL\u00ea Thanh Quang<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Determination of nutrient resources can be return\u00a0to the land of\u00a0 <i>A. auriculiformis<\/i> plantation in Phu Binh &#8211; Binh Duong<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3468<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td width=\"0%\"><\/td>\n<td valign=\"top\" width=\"35%\">\n<ol>\n<li>Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 ng\u00e2m t\u1ea9m dung d\u1ecbch Polyetylenglycol (PEG) nh\u1eb1m \u1ed5n \u0111\u1ecbnh\u00a0 k\u00edch th\u01b0\u1edbc g\u1ed7 V\u1ed1i thu\u1ed1c (<i>Schima wallichii<\/i> (DC.) Korth)<\/li>\n<\/ol>\n<\/td>\n<td valign=\"top\" width=\"25%\">\n<p align=\"left\">B\u00f9i Duy Ng\u1ecdc,<br \/>\nH\u00e0 Ti\u1ebfn M\u1ea1nh,<br \/>\nH\u00e0 Th\u1ecb Thu<\/p>\n<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"30%\">\n<p align=\"left\">Determination of technological parameters of <i>Schima wallichii<\/i> (DC) Korth treated by polyetylenglycol (PEG)<\/p>\n<\/td>\n<td valign=\"top\" width=\"7%\">3475<\/td>\n<td width=\"0%\"><\/td>\n<\/tr>\n<tr>\n<td colspan=\"4\" valign=\"top\" width=\"65%\"><\/td>\n<td colspan=\"3\" width=\"34%\"><\/td>\n<\/tr>\n<tr>\n<td colspan=\"7\" valign=\"top\" width=\"100%\">Initial results of testing of macadamia clones in Lai Chau province<\/p>\n<p>B\u00f9i Thanh H\u1eb1ng, Ph\u1ea1m Quang Tuy\u1ebfn, Nguy\u1ec5n Th\u1ecb V\u00e2n Anh,<br \/>\n\u0110\u1ed7 Th\u1ecb Thanh H\u00e0, Tr\u1ea7n Anh H\u1ea3i<br \/>\n<i>Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh<\/i><\/p>\n<p>Two clonal tests was carried out in Tam Duong District and Lai Chau City. These locations have average annual precipitation from 1,500 to 2,000 mm, and have average temperature from 22 to 26<sup>0<\/sup>C, with maximums of 35<sup>0<\/sup>C, and minimums of 0<sup>0<\/sup>C. Soil is characterized as poor with low humus. The five Macadamia clones that were tested were OC, 246, 816, 842, 849 accompanied by seedlings of H2. After the first two years of research, results show that the Macadamia clones that were planted in Lai Chau have grown well. The three clones which had good growth in Then Sin Commune, Tam Duong District were OC, 842, and 816. Similarly, the clones OC, 816 and seedlings of H2 had good growth in San Thang Commune, Lai Chau City. In brief, the results of research in Tam Duong District and Lai Chau City have showed that OC and 816 have a high potential for cultivatation. The results of estimations of fruiting ability and growth of the clones in Tam Duong District and Lai Chau City have indicated that OC provides the best option for planting in Lai Chau.<\/p>\n<p><b><i>Keyword<\/i><\/b><i>: <\/i><i>Macadamia, clones, Lai Chau<\/i><\/td>\n<\/tr>\n<tr>\n<td width=\"4\"><\/td>\n<td width=\"268\"><\/td>\n<td width=\"196\"><\/td>\n<td width=\"31\"><\/td>\n<td width=\"198\"><\/td>\n<td width=\"56\"><\/td>\n<td width=\"4\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Study genetic diversity of <i>Aleurites moluccana<\/i> (L.) Willd\u2019s provenances by RAPD markers<\/p>\n<p>Tr\u1ea7n \u0110\u1ee9c V\u01b0\u1ee3ng<sup>1<\/sup>, B\u00f9i Ng\u1ecdc Quang<sup>1<\/sup>,<br \/>\nL\u01b0\u01a1ng V\u0103n Ti\u1ebfn<sup>2<\/sup>, Ho\u00e0ng V\u0103n Th\u1eafng<sup>3<\/sup>, Tr\u1ea7n H\u1ed3 Quang<sup>1<br \/>\n<i>1 <\/i><\/sup><i>Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<br \/>\n<sup>2 <\/sup>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<br \/>\n<sup>3 <\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh<\/i><i><\/i><\/p>\n<p>Genetic diversity of 31 <i>Aleurites moluccana<\/i> trees from five provenances (Bac Kan, Lang Son, Thanh Hoa, Nghe An and Gia Lai) were evaluated by seven polymorphic RADP markers (OPN16, OPH08, OPR08, OPAL8, OPAK14, OPA4, OPAB5). Seven RAPD markers amplified 31 individual trees and produced 960 bands with size ranges from 100 bp to 950 bp. The polymorphic level ranged from 54.34% to 64.83%. Dendrogram obtained from 31 trees with UPGMA method showed 2 main clusters with similarity coefficient of 0.8. Cluster I comprised 16 individuals from Thanh Hoa, Nghe An and Gia Lai and having similarity coefficient from 0.84 to 1.00 and divided into three sub &#8211; clusters. Cluster II comprised 15 trees from Bac Kan and Lang Son provinces and contained 2 sub &#8211; clusters with similarity coefficient from 0.915 &#8211; 0.985.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Aleurites moluccana, genetic diversity, RAPD<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Research on structure of high trees of forest status IIA in protection forest of Yen Lap reservoir, Quang Ninh province<\/p>\n<p>Vo\u0303 \u0110a\u0323i Ha\u0309i<br \/>\n<i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n<p>Research was conducted on natural forest staus IIA in protection areas of Yen Lap water reservoir, Quang Ninh province. Results show that: density of high trees varies from 476 &#8211; 696 trees\/ha; species composition is rather diversified with a lot of different species, varies from 28 to 45 species, of which there are 4 &#8211; 7 tree species participated in species composition formula; All natural forest areas of status IIA have two storeys. Forest cover of the forest is 0.3 &#8211; 0.5; N\/D<sub>1.3<\/sub> distribution of natural forest status IIA can be modelled by Weibull, spacing and Meyer distribution functions depending of the research locations; N\/Hvn distribution of natural forest status IIA in the research areas can be modelled by Weibull and spacing distribution functions.<\/p>\n<p align=\"left\"><b><i>Keywords: <\/i><\/b><i>Structure of high trees, forest status IIA, protection forest, Yen Lap &#8211; Quang Ninh province<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Study of silviculture characteristic of tropical humid evergreen broadleaf closed forest in Ma Da region, Dong Nai province<\/p>\n<p>Ph\u00f9ng V\u0103n Khang<br \/>\n<i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/i><i><\/i><\/p>\n<p>In order to provide scientific basic used to propose forest management methods in Dong Nai\u2019s culture and nature reserve, the study of \u201cUnderstanding of silviculture characteristics of forest types: II\u00adB, IIIA2, IIIA3\u201d was conducted. The results show that:<\/p>\n<p>In terms of forest structure: IIB type has 67 woody species, which belongs to 50 genus and 29 families; forest type IIIA2 consists of 55 woody species belonging to 41 genus and 25 families; forest type IIIA3 has 67 woody species that belongs to 46 genus and 25 families. N &#8211; D distribution of the three forest types is the same which has reduced distribution. Distribution of the N &#8211; H of type forest IIIA3 is a form of misses a top and obtuse, and distribution of the N &#8211; H of state forest IIB and IIIA2 are the form of misses a top and acute. Natural regeneration density for the three forest types is 11.700 trees\/ha, 11.100 trees\/ha and 9.400 trees\/ha for IIB, IIIA2 and IIIA3 forest types, respectively. Most of the natural regeneration seedlings are from seed (91.5%), growing well (58.6%). The similarity index between mother trees and seedlings reanges from 38 to 44%. Number of tree species, species richment, uniformity of richment and species diversity of IIB\u2019s type are higher than that of IIIA2 and IIIA2. Regeneration diversity increases gradually from IIB; IIIA2 and IIIA3.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Silvicultural character, evergreen broadleaf closed forest, Ma Da, Dong Nai<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Research on characteristics of evergreen broad &#8211; leaved natural forests in the Vu Quang National Park, Ha Tinh province<\/p>\n<p>Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n<sup>*<\/sup>, Tr\u1ea7n Th\u1ecb Thu H\u00e0<br \/>\n<i>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m &#8211; \u0110\u1ea1i h\u1ecdc Th\u00e1i Nguy\u00ean<\/i><i><\/i><\/p>\n<p>This research about structural characteristics of evergreen broad &#8211; leaved natural forest was examined on the six permanent sample plots in the Vu Quang National Park, Ha Tinh province. The result shown that there were 14 dominant species in the study areas (with IV &gt;10%), in which some species with the highest composition coefficients as <i>Castanopsis indica, Macclurodendron oligophlebia, Alangium ridleyi, Dracontomelon duperreanum<\/i>. The Shannon &#8211; Wiener diversity index (H&#8217;) and Simpson index (D) were calculated at 3.586 and 0.952, respectively. The distance distribution showed the best to fit N &#8211; D distribution of the forest stands in the study areas. This study results have significantly contributed to the scientific basis for the management of natural forests in a sustainable manner in general and provided a basis for studying the dynamics of forest structures in the next stage.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Biodiversity index, distance distribution, evergreen broad &#8211; leaved natural forests, forest structure, Vu Quang National Park.<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Dynamic structure of evergreen broad &#8211; leaved natural forests in the Ba Be National Park<\/p>\n<p>Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n<sup>1<\/sup>, Tr\u1ea7n V\u0103n Con<sup>2<\/sup>, Tr\u1ea7n Th\u1ecb Thu H\u00e0<sup>1<br \/>\n<i>1 <\/i><\/sup><i>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m &#8211; \u0110\u1ea1i h\u1ecdc Th\u00e1i Nguy\u00ean<br \/>\n<sup>2 <\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh &#8211; Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p VN<\/i><i><\/i><\/p>\n<p>The data collection in the standard positioned plots of evergreen broad &#8211; leaved natural forest was conducted to in Ba Be National Park from 2007 to 2012. As results shown, the dynamics of forest and its structure were relatively stable in the study area. Although there was a change in dynamics of structure components, it was not significant. The structural dynamics of density\/diameter at the breast height (N\/D<sub>1.3<\/sub>) had the biggest variation in the BB6 plot in relation to the distribution in number of trees at the small diameter &#8211; based category, which decreased relatively considerable. A number of additional regeneration seedlings averaged at 9 trees per ha year<sup>&#8211;<\/sup><sup>1<\/sup>, while the average number of dead trees was 7 trees per ha year<sup>-1<\/sup>, the rate of movement of trees to the next category per plot in the cycle were reached to the value of 19.46 %. Based on the results, this study can simulate the evolution of the forest over the long term.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Evergreen broad &#8211; leaved natural forest, dynamics, structure and additional regeneration<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Distributive and ecological characters of <i>Mahonia nepalensis <\/i>and <i>Eurycoma longifolia <\/i>in Lam Dong, Vietnam<\/p>\n<p>Nguy\u1ec5n Th\u00e0nh M\u1ebfn<sup>1<\/sup>, Ho\u00e0ng Thanh Tr\u01b0\u1eddng<sup>1<\/sup>,<br \/>\nHu\u1ef3nh Th\u1ecb M\u1ef9 Trang<sup>2<\/sup>, Nguy\u1ec5n \u0110\u1eb7ng Th\u00f4ng<sup>2<br \/>\n<i>1<\/i><\/sup><i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean<br \/>\n<sup>2<\/sup>\u0110\u1ea1i h\u1ecdc \u0110\u00e0 L\u1ea1t<\/i><i><\/i><\/p>\n<p><i>Mahonia <\/i><i>nepalensis<\/i> DC. and <i>Eurycoma <\/i><i>longifolia<\/i> Jack. are 2 valued medicinal plants and natural distribution in Lam Dong province. <i>Mahonia <\/i><i>nepalensis<\/i> adapts to light and moisture habitat, mainly distributed in Dalat City and Lac Duong district. It usually grows along streams in the wet hillside, under the canopy of <i>P<\/i><i>inus kesiya<\/i> forests or mixed conifers and broad &#8211; leaved forests, at an altitude of 1,500 &#8211; 1,900m (concentrate in 1,800m &#8211; 1,900m). <i>Mahonia <\/i><i>nepalensis<\/i> are often seen on ferrasols with slightly acidic soil and average particle size distribution. <i>Eurycoma <\/i><i>longifolia<\/i> is a light demanding species and drought tolerant. It has a wide distribution in many localities in Lam Dong province, concentrated in districts: Di Linh, Bao Lam and Dam Rong. <i>Eurycoma <\/i><i>longifolia<\/i> has distribution of altitude 200 &#8211; 1,100m (concentrate in 500 &#8211; 900m). This plant usually grows on ferrasols or lavisoils, slightly acidic soil and average particle size distribution.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Eurycoma longifolia, Mahonia nepalensis, medicinal plant, distribution, Lam Dong.<\/i><\/p>\n<p align=\"left\"><b><i>\u00a0<\/i><\/b><\/p>\n<p>Effects of planting factors in growth of dipterocarpaceae\u2019s species in forest restoration models in Dong Nai province<\/p>\n<p>&nbsp;<\/p>\n<p>T\u00f4 B\u00e1 Thanh<sup>1<\/sup>, B\u00f9i Vi\u1ec7t H\u1ea3i<sup>2<\/sup>, Ph\u1ea1m Xu\u00e2n Ho\u00e0n<sup>3<br \/>\n<\/sup><i><sup>1<\/sup><\/i><i>Khu BTTN \u0110\u1ed3ng Nai,<br \/>\n<sup>2<\/sup>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m tp.H\u1ed3 Ch\u00ed Minh,<br \/>\n<sup>3<\/sup>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><\/p>\n<p>Thematic study was conducted to determine influence of land and planting factors to the growth potential of the D and H with <i>Hopea odorata<\/i> and <i>Dipterocarpus alatus<\/i> species. The results indicate that: (i) two different types of soil affect the growth unknown to D and H in both species; (ii) two different growing methods impact are non &#8211; significant to the growth of D in both species, but the effect is significant to the H growth of the species <i>Dipterocarpus alatus<\/i>; (iii) Growth of D and H in two major tree planting specifications did not clarify the rules for both species <i>Hopea odorata<\/i> and <i>Dipterocarpus alatus<\/i>; similar growth between D and H of support tree planting specifications also difference is not significant for both species.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Hopea odorata and Dipterocarpus alatus, growth, soil for afforestation, reforestation techniques.<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Assesement of growth of 11 &#8211; year &#8211; old <i>A<\/i><i>cacia auriculiformis<\/i> plantation for saw &#8211; log production in Dong Nai province<\/p>\n<p>Nguy\u1ec5n Huy S\u01a1n, Nguy\u1ec5n Thanh Minh<br \/>\n<i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i><i><\/i><\/p>\n<p>This study used an <i>Acacia auriculiformis<\/i> plantation planted in 2002 by the National projects KC.06.05.NN to evaluate the possibility of providing saw timber after 11 years of planting at Song May station (Dong Nai province). The planted clones had clone certification, including A19, A58, a33, a147, which were mixed in the ratio of 1:1:1:1 when planted. The treatments were of factorial design, with different amounts of NPK fertiliser (14:8:6) and biofertiliser (Song Gianh) applied to each tree at planting, and additional &#8211; fertilising in years 2 and 3. Two years after planting, the highest growth rate was in the treatment group which received 150 &#8211; 200g NPK and 200 &#8211; 300 g biofertiliser at planting. After three years, the best treatment of additional fertilising at year 2 and 3 was 200g of NPK fertilizer and 200g biofertiliser. Planting densities were 1,110 and 1,660 trees\/ha<sup>-1<\/sup>. After 11 years the density, standing volume and MAI were 1,020 and 1,270 trees\/ha<sup>-1<\/sup>, and 300.5 and 300.9m<sup>3<\/sup> ha<sup>-1<\/sup>, and 27.3 &#8211; 27.4m<sup>3<\/sup> ha<sup>-1<\/sup>\/year<sup>-1<\/sup>, respectively. Growth rate, annual increament of standing volume and proportion of large &#8211; size timber of individual were significantly higher in the density treatment of 1,110 trees\/ha<sup>-1<\/sup> . Where the initial planting density is 1,110 trees\/ha<sup>-1<\/sup>, after 11 years the proportion of trees having diameter at breast height over 18cm was 48.4%, white it was 31.4% in the density 1,660 trees\/ha<sup>-1<\/sup> .<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Acacia auriculiformis, saw log, fertiliser application, planting<\/i> <i>density, Dong Nai province<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Potential of green house gases emission reduction in land use, land use change and forestry for a period of 2010 &#8211; 2020 in Vietnam<\/p>\n<p>V\u0169 T\u1ea5n Ph\u01b0\u01a1ng<sup>1<\/sup>, \u0110\u1ed7 Tr\u1ecdng Ho\u00e0n<sup>2<\/sup> v\u00e0 Ho\u00e0ng Xu\u00e2n T\u00fd<sup>3<br \/>\n<i>1<\/i><\/sup><i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam,<br \/>\n<sup>2<\/sup>T\u1ed5 ch\u1ee9c N\u00f4ng L\u00e2m Th\u1ebf gi\u1edbi t\u1ea1i Vi\u1ec7t Nam,<br \/>\n<sup>3<\/sup>H\u1ed9i Khoa h\u1ecdc k\u1ef9 thu\u1eadt L\u00e2m nghi\u1ec7p<\/i><i><\/i><\/p>\n<p>Emission potential in land use, land use change and forestry is analyzed based on the scenario of Business as Usual for a period of 2010 &#8211; 2020. It means that this emission potential is calculated following the approved land use strategies and planning. The study employed REDD Abacus and COMAP softwarea and secondary data to analyze emission potential for land use, land use change and forestry (LULUCF) for 2010 &#8211; 2020. The analysis indicates that implementation of the strategies and planning for 2010 &#8211; 2020 will generate a net carbon sink of 35.7 million tons CO<sub>2 <\/sub>equivalent (coded as CO<sub>2<\/sub>e)\/year. In forestry sector, land use change could provide a net sequestration of 37.3 million tons CO<sub>2<\/sub>e\/year. Emission reduction can greatly increase if 9 mitigation options are fulfilled and the emission amount resulted from these options can reach 70.1 million tons CO<sub>2<\/sub>e\/year for this period. The study suggests that Vietnam will obtain more carbon benefits from enhancing forest carbon stock and sustainable forest management than reducing emissions from deforestation only.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> Emission reduction, forestry, green house gases, land use, land use change<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>The using agri &#8211; stabi and lime to improve of acid sulphate soil for melaleuca and eucaliptus reforestation in Thanh Hoa, Long An province<\/p>\n<p>Ph\u1ea1m Th\u1ebf D\u0169ng, Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t<br \/>\n<i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p <\/i><i>Nam<\/i><i> B\u1ed9<\/i><i><\/i><\/p>\n<p>The potentiality of land use on acid sulphate soil in Mekong river delta is a great for agro &#8211; forest production, however, there is 1\/3 of land area with being infected by acidity whilte using the lime to soil acidity improving is not reality by high expense for transport. Yuka sangyo Co., Ltd (Japan) and Forest Science Institute of South Vietnam have cooperated to try the using Agi &#8211; stabi which is new product of Yuka sangyo Co., Ltd to improve the acid sulphate soil in Mekong river delta. The study was implimented in Thanh Hoa forest experimental station in Thanh Hoa district, Long Anprovince in March, 2002. By method of experimental field, the experiment was designed as blocks system with 3 replicates for <i>melaleuca<\/i> and 2 replicates for <i>eucaliptuts<\/i> species. Research results points that can use the Agri &#8211; stabi to reduce acidity concentration in the soil to establish the <i>melaleuca<\/i> and <i>eucaliptus <\/i>plantation, and to incread growth of trees and reduce pH of water in canals surrounding.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> acidity sulphate soil, agri &#8211; stabi, lime, melaleuca tree, eucalyptus tree<\/i><\/p>\n<p>&nbsp;<\/p>\n<p>Determination of nutrient resources can be return\u00a0to the land of<br \/>\n<i>A. auriculiformis<\/i> plantation in Phu Binh &#8211; Binh Duong<\/p>\n<p>Ki\u1ec1u Tu\u1ea5n \u0110\u1ea1t, Pha\u0323m Th\u00ea\u0301 Du\u0303ng, L\u00ea Thanh Quang<br \/>\n<i>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam b\u1ed9<\/i><i> <\/i><\/p>\n<p>The study was conducted to determine the dry biomass and nutrients from three sources: (i) slash retention after havesting of the previous rotation; (ii) shrubs, vegetation, litter under the forest canopy; (iii) litter fall of <i>Acacia auriculiformis<\/i> plantation in the next rotation in Phu Binh &#8211; Binh Duong. Results showed that: total accumulative dried biomass of these three sources in <i>Acacia auriculiformis<\/i> plantations at age 5 is about 55.05 tons\/ha, nutrient equivalent potential for soils is: 659.01kg N\/ha, 61.35kg P\/ha, 327.36kg K\/ha, 58.43kg Ca\/ha and 24.11kg Mg\/ha. This nutrition will help improve soil fertility and sustainable productivity of <i>Acacia auriculiformis<\/i> plantation in the next rotation.<\/p>\n<p align=\"left\"><b><i>Keyword:<\/i><\/b><i> Litter fall, slash retention, biomass, soil nutrient<\/i><b><i><\/i><\/b><\/p>\n<p>&nbsp;<\/p>\n<p>Determination of technological parameters of <i>S<\/i><i>chima wallichii<\/i> (DC) Korth treated by polyetylenglycol (PEG)<\/p>\n<p>B\u00f9i Duy Ng\u1ecdc, H\u00e0 Ti\u1ebfn M\u1ea1nh, H\u00e0 Th\u1ecb Thu<br \/>\n<i>B\u1ed9 m\u00f4n Ch\u1ebf bi\u1ebfn L\u00e2m s\u1ea3n &#8211; Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng<\/i><i> <\/i><\/p>\n<p>The untreated <i>Schima wallichii (DC.)<\/i> Korth has high coefficient of shrinkage and swelling; the shrinkage rate in the tangential direction is 11.17\u00b10.37%; the shrinkage rate in the radial direction is 6.91\u00b10.22%; the swelling rate in the tangential direction is 11.97\u00b10.39%; the swelling rate in the radial direction is 6.83\u00b10.33%. The dimensional stability of treated wood samples were increased while treating by PEG in different conditions: T = 40<sup>0<\/sup>C, 50<sup>0<\/sup>C, 60<sup>0<\/sup>C; \u03c4 = 6h, 8h, 10h; N = 15%, 20%, 25%. Oven dry density of the treated wood samples before treating is 0.75g\/cm<sup>3<\/sup>. Oven dry density of the treated wood samples is from 0.78 to 0.87g\/cm<sup>3<\/sup>, equivalent from 8.33% to 19.94% increasing. The anti &#8211; swelling efficient (ASE) is from 14.92% to 52.74% indicating good effective treatment. The coefficient of shrinkage and swelling of treated wood samples were gradually decreased: the shrinkage rate in the tangential direction is about 6.5%; the shrinkage rate in the radial direction is between (3\u00f73.5)%. The technological parameters of treating <i>Schima wallichii (DC.)<\/i> Korth wood by PEG &#8211; 600 were identified: T=48\u00f7520C, \u03c4=7.5\u00f79h, N=17\u00f724%.<\/p>\n<p align=\"left\"><b><i>Keywords:<\/i><\/b><i> <\/i><i>Dimensional stability<\/i><i>, Schima wallichii (DC.) Korth, <\/i><i>PEG<\/i><i>.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u kh\u1ea3o nghi\u1ec7m m\u1ed9t s\u1ed1 d\u00f2ng c\u00e2y Macadamia tr\u00ean \u0111\u1ecba b\u00e0n t\u1ec9nh Lai Ch\u00e2u B\u00f9i Thanh H\u1eb1ng, Ph\u1ea1m Quang Tuy\u1ebfn, Nguy\u1ec5n Th\u1ecb V\u00e2n Anh,\u00a0 \u0110\u1ed7 Th\u1ecb Thanh H\u00e0, Tr\u1ea7n Anh H\u1ea3i Initial results of testing of macadamia clones in Lai Chau province 3373 \u0110\u00e1nh gi\u00e1 \u0111a d\u1ea1ng di truy\u1ec1n c\u00e1c xu\u1ea5t x\u1ee9 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1264"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=1264"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1264\/revisions"}],"predecessor-version":[{"id":1706,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/1264\/revisions\/1706"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=1264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=1264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=1264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}