三江源玛可河林区植物濒危程度和保护类别评价  

Evaluation on threatened situation and protection classes of the plants in Makehe Forest Region of Sanjiangyuan Nature Reserve,China

作　　者：邹大林[1] 何友均[1] 林秦文[1] 崔国发[1] 郑杰[2] 董建生[2] 李永波[2] 赫万成 李长明[3] 张世玺[3] 

机构地区：[1]北京林业大学自然保护区学院 [2]青海省林业局 [3]青海省玛可河林业局

出　　处：《北京林业大学学报》2006年第3期20-25,共6页Journal of Beijing Forestry University

基　　金："十五"国家攻关子课题(2001BA510B10--03)

摘　　要：为了保护好青海省最大的原始林区的濒危物种,笔者对三江源自然保护区玛可河林区植物资源进行了全面调查,共统计出植物364种,分属55科,173属.对调查到的364种植物从样线分布频度、样地分布频度、样方内分布密度、林区内现存多度、植物确限度5个方面评价其濒危程度,评价结果为玛可河林区濒危种2种,林区易危种6种,林区近危种12种,林区安全种344种.再通过对植物的濒危系数、遗传损失系数、利用价值系数按一定的权重分配定量评价其优先保护顺序.研究结果表明,林区一类优先关注植物2种,林区二类优先关注植物9种,林区三类优先关注植物23种,林区一般关注植物330种.According to the study and investigation of plant resources in Makehe Forest Region of Sanjiangyuan Nature Reserve, Qinghai Province, we found that the plants here existed in 55 families, 173 genera and summing up 364 species. The paper put forward five quantified indices for evaluating the threatened situations of these plants, i. e. distribution frequency of line transect as well as sample plot, distribution density inside sample plot, existent abundance in forest region and plants fidelity. The results showed that there are two endangered species, six vulnerable species, 12 near threatened species and 344 safety species. The paper analyzed the urgent conservation value of plants according to endangered coefficient, genetic loss coefficient and useful value coefficient, and results also showed that the number of species of the first concern is two, the second nine, the third 23 and of the least concern 330.

关 键 词：濒危植物 玛可河林区 定量评价 保护类别 

分 类 号：S759.9[农业科学—森林经理学]