{"id":606,"date":"2010-12-08T02:18:40","date_gmt":"2010-12-08T02:18:40","guid":{"rendered":"http:\/\/envafs.dungnq.local\/2010\/12\/08\/evaluation-of-resources-and-endangerment-of-forest-tree-species-of-vietnam\/"},"modified":"2010-12-08T02:18:40","modified_gmt":"2010-12-08T02:18:40","slug":"evaluation-of-resources-and-endangerment-of-forest-tree-species-of-vietnam","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/evaluation-of-resources-and-endangerment-of-forest-tree-species-of-vietnam\/","title":{"rendered":"Evaluation of resources and endangerment of forest tree species of Vietnam"},"content":{"rendered":"<p align=\"justify\">\n<strong><span style=\"font-family: Arial;font-size: 10pt\">Nguyen Hoang Nghia<\/span><\/strong>\n<\/p>\n<p align=\"justify\">\n<strong><\/strong><em><span style=\"font-family: Arial;font-size: 10pt\">Forest Science Institute of Vietnam<\/span><\/em><span style=\"font-family: Arial;font-size: 10pt\">&nbsp;<\/span>\n<\/p>\n<p align=\"justify\">\n<span style=\"font-family: Arial;font-size: 10pt\">There are more than 50 conifer species in Vietnam, of which 33 of them are native, so they occupy a priority place in conservation and development programs. Most conifer species occur in very difficult site and climatic conditions; natural forest is still degraded or fragmented, and natural regeneration is bad, therefore genetic conservation of conifer species requires a high priority. Quite a high number of conifers of Vietnam are facing danger of extinction. Of these, 3 species, namely <em>Cupressus tonkinensis, Glyptostrobus pensilis<\/em> and <em>Taxus wallichiana, <\/em>are classified at the Critically Endangered (CR) level (9%) according to IUCN categories; 10 species at EN level (<em>Xanthocyparis vietnamensis, Calocedrus rupestris, Taiwania cryptomerioides, Cephalotaxus mannii, Taxus chinensis, Amentotaxus hatuyenensis, Tsuga sinensis, Pinus kwangtungensis, Keteleeria davidiana, Abies fansipanensis<\/em>)(30%) and 12 species at the VU level (36%), altogether 25\/33 species (76%).<\/span><span style=\"font-family: Arial;font-size: 10pt\">&nbsp;<\/span>\n<\/p>\n<p align=\"justify\">\n<span style=\"font-family: Arial;font-size: 10pt\">Vietnam<\/span><span style=\"font-family: Arial;font-size: 10pt\"> has more than 40 species of 6 genera of Dipterocarpaceae where <em>Anisoptera<\/em> genus has 1 species, <em>Dipterocarpus <\/em>has 12, <em>Hopea<\/em> has 11, <em>Parashorea<\/em> has 2, <em>Shorea<\/em> has 8 and <em>Vatica<\/em> has 8 species and 1 subspecies. In comparison to conifers, dipterocarps have lower endangeredment levels. There are two species at CR level (5%), namely <em>Hopea cordata<\/em> and <em>Hopea reticulata<\/em>; 3 species at EN level (7%), namely <em>Dipterocarpus retusus, D. costatus<\/em> and <em>D. baudii<\/em>; and 17 species at VU level (40%), altogether 22\/42 species (52%).<\/span><span style=\"font-family: Arial;font-size: 10pt\">&nbsp;<\/span>\n<\/p>\n<p align=\"justify\">\n<span style=\"font-family: Arial;font-size: 10pt\">Beside species of the two above-mentioned groups, other species were also involved in conservation research programs which included highly threatened species such as <em>Melanorrhoea usitata, M. laccifera, Cinnamomum parthenoxylon, C. glaucescens, Fagraea fragrans, Dalbergia tonkinensis<\/em> and some other species with lower threat levels but high potential for planting such as <em>Endospermum chinense, Ormosia balansae<\/em>, <em>Markhamia stipulata, Dialium cochinchinensis, Sindora siamensis, Chukrasia tabularis, <\/em>and<em> Burretiodendron tonkinensis<\/em>. Conservation plantation of these species could be established with two objectives to conserve the species but also to contribute to seed supply for planting in the future.<\/span><span style=\"font-family: Arial;font-size: 10pt\">&nbsp;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n<span style=\"font-family: Arial;font-size: 10pt\">There are more than 50 conifer species in Vietnam, of which 33 of them are native, so they occupy a priority place in conservation and development programs. Most conifer species occur in very difficult site and climatic conditions; natural forest is still degraded or fragmented, and natural regeneration is bad, therefore genetic conservation of conifer species requires a high priority. Quite a high number of conifers of Vietnam are facing danger of extinction. <\/span><\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/606"}],"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"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=606"}],"version-history":[{"count":0,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/606\/revisions"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}