| Quantitative Assessment on Endangerment Degree of Rare Animal and Plant Species in Tibet, China |
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| 作者姓名： | DONG Ke ZHONG Xianghao LIU Shuzhen |
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| 作者单位： | [1]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （50099620） |
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| 摘 要： | It is of profound theoretical and practical significance to study endangerment status of rare species in Tibet. Index system is firstly set down for quantitative assessment of rare animal and plant species, then endangerment degree of wildlife under special state protection are calculated, which is expressed by value E. The results reveal that Yunnan snub-nosed monkey （Rhinopithecus bieti）, Himalayan tahr （Hemitragus jemlahicus） and Gigantic Cypress （Cupressus gigantea） have the highest E respectively in animals and plants. According to value E, all species are categorized into 4 ranks： critically endangered（0.6-0.8）, endangered （0.4- 0.6）, vulnerable （0.2-0.4） and lower risk （ E ≤ 0.2）. By comparison of the first five animals and plants of the highest E, each sub-ecozone bears a distinct identity.
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| 关 键 词： | 中国 西藏 珍稀动植物 特有物种 数量估计 危害等级 |
| 文章编号： | 1007-1202（2007）04-0684-05 |
| 收稿时间： | 15 December 2006 |
| 修稿时间： | 2006-12-15 |
Quantitative assessment on endangerment degree of rare animal and plant species in Tibet,China |
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| DONG Ke ZHONG Xianghao LIU Shuzhen.Quantitative Assessment on Endangerment Degree of Rare Animal and Plant Species in Tibet, China[J].Wuhan University Journal of Natural Sciences,2007,12(4):684-688. |
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| Authors: | Dong Ke Zhong Xianghao Liu Shuzhen |
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| Institution: | (1) Insitute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China;(2) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China |
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| Abstract: | It is of profound theoretical and practical significance to study endangerment status of rare species in Tibet. Index system
is firstly set down for quantitative assessment of rare animal and plant species, then endangerment degree of wildlife under
special state protection are calculated, which is expressed by value E. The results reveal that Yunnan snub-nosed monkey (Rhinopithecus bieti), Himalayan tahr (Hemitragus jemlahicus) and Gigantic Cypress (Cupressus gigantea) have the highest E respectively in animals and plants. According to value E, all species are categorized into 4 ranks: critically endangered (0.6–0.8), endangered (0.4–0.6), vulnerable (0.2–0.4) and
lower risk (E ⩽ 0.2). By comparison of the first five animals and plants of the highest E, each sub-ecozone bears a distinct identity.
Biography: DONG Ke (1978–), male, Ph.D. candidate, research direction: environmental degradation and ecological restoration. |
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| Keywords: | endangerment degree endemism specific type endangerment rank |
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