| Assessing Threats and Setting Conservation Priorities for Plant Species between Forest and Meadow Ecotone in Sanjiangyuan Nature Reserve, China |
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| 作者姓名： | HE Youjun CUI Guofa FENG Zongwei.Research Institute of Forestry Policy and Information Chinese Academy of Forestry Beijing P.R. China. College of Resources and Environment Beijing Forestry University Beijing P.R..China. Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing P.R..China |
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| 作者单位： | HE Youjun1，2 CUI Guofa2 FENG Zongwei31.Research Institute of Forestry Policy and Information，Chinese Academy of Forestry，Beijing 100091，P.R. China2. College of Resources and Environment，Beijing Forestry University，Beijing 100083，P.R..China3. Research Center for Eco-Environmental Sciences，Chinese Academy of Sciences，Beijing 100085，P.R..China |
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| 基金项目： | This research is one part of “The Rapid Evaluation Technology of Threatened Species in Sanjiangyuan Nature Reserve ” (2001BA510B10-03), which is supported by the National Advanced Project of the Tenth Five-year Plan. |
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| 摘 要： | INTRODUCTIONA large number of nature resources have fosteredhuman beings in the world. However, during the lastfew decades these nature resources and biodiversitywere subjected to various anthropogenic pressuressuch as plantation, deforestation, construction ofhydro-electric project, overgrazing and exploitation andother developmental activities (He Youjun, et al, 2004b;Li Ang, et al, 2002; Swamy, et al, 2000). In order toprotect environment and biodiversity, we have to facethe challenge…
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| 关 键 词： | 三江平原 森林群落 草地 生物种类 自然资源 |
Assessing Threats and Setting Conservation Priorities for Plant Species between Forest and Meadow Ecotone in Sanjiangyuan Nature Reserve, China |
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| HE Youjun, CUI Guofa FENG Zongwei.Research Institute of Forestry Policy and Information,Chinese Academy of Forestry,Beijing ,P.R. China. College of Resources and Environment,Beijing Forestry University,Beijing ,P.R..China. Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing ,P.R..China.Assessing Threats and Setting Conservation Priorities for Plant Species between Forest and Meadow Ecotone in Sanjiangyuan Nature Reserve, China[J].中国林业科技(英文版),2005,4(3):29-36. |
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| Authors: | HE Youjun CUI Guofa FENG Zongwei |
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| Affiliation: | [1]Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, P.R. China [2]College of Resources and Environment, Beijing Forestry University, Beijing 100083, P.R. China [3]Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P.R.China |
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| Abstract: | In order to understand the pattern and status of plant species in the forest-meadow ecotonein Sanjiangyuan Nature Reserve, this study was undertaken through expert consultation, literaturesurvey and fieldwork in various parts of the ecotone during 2002-2004. Based on 3 important systems,i.e. threatened status, genetic loss effect and use value, the list of threatened and prioritized plants wasestablished. In this paper, the threatened coefficient was defined as the criteria of category for threatenedplants, the conservation priorities coefficient summed by threatened coefficient, genetic coefficient anduse value coefficient was defined as the criteria of prioritized plants. In addition, 10 indicators toevaluate threatened grading and conservation priorities sequence were included in the 3 importantsystems. The weights of 3 systems and 10 indicators were given through expert consultation andanalytic hierarchy process. Ten indicators were given scores based on the subcriteria, respectively, andall the scores of the 3 systems were summed up for each species, then contrasted to the criteria ofthreatened grading and conservation priorities for plant species. The status of endangerment andconservation priorities of plant species were analyzed, and the results showed that the number ofendangered species was 2, vulnerable species 37, near threatened species 140, safe species 767; the firstconcern category had 4 species, the second concern category 18, the third concern category 150 and theleast concern category 774. |
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| Keywords: | forest-meadow ecotone plant species Sanjiangyuan Nature Reserve quantitativeassessment index system category of threats conservation priorities |
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