| 东阿拉善-西鄂尔多斯狭域特有植物濒危分级标准与优先保护级的确定研究 |
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| 引用本文： | 安慧君,刘佳慧,张韬. 东阿拉善-西鄂尔多斯狭域特有植物濒危分级标准与优先保护级的确定研究[J]. 干旱区资源与环境, 2005, 19(1): 194-200 |
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| 作者姓名： | 安慧君 刘佳慧 张韬 |
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| 作者单位： | 内蒙古农业大学林学院,呼和浩特,010019;内蒙古大学生命环境学院,呼和浩特,010010 |
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| 基金项目： | 国家自然科学基金资助项目2000-2002批准号:39960011;内蒙古自治区科技攻关项目(20020702) |
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| 摘 要： | 本文以东阿拉善—西鄂尔多斯狭域特有 1 5种荒漠植物为研究对象 ,采用“3S”技术与野外调查相结合 ,同时结合前人研究经验 ,确定其现存分布范围、数量。研究制定东阿拉善—西鄂尔多斯地区特有植物濒危分级标准的定量化指标。通过对评价指标的定量化和权重分配处理 ,求得 1 5种荒漠植物的“濒危系数”和“优先保护值” ,并进行濒危等级划分。从而真实、客观、全面地反映该区域特有植物的濒危状况和急需优先保护程度。
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| 关 键 词： | 东阿拉善-西鄂尔多斯 狭域特有植物 定量评价指标优先保护级 |
| 文章编号： | 1003-7578(2005)01-194-07 |
| 修稿时间： | 2003-12-27 |
Study on Definition of Endangering Standard of Exclusive Plants in Eastern Alashan-Western Erdos |
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| AN Hui-jun LIU Jia-hui ZHANG Tao. Study on Definition of Endangering Standard of Exclusive Plants in Eastern Alashan-Western Erdos[J]. Journal of Arid Land Resources and Environment, 2005, 19(1): 194-200 |
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| Authors: | AN Hui-jun LIU Jia-hui ZHANG Tao |
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| Abstract: | The research deals with the seventeen exclusive desert plants in narrow area between Alashan and Westen Erdos. Combined "3S"techniquewith field investigation and based on profound research, their distributionand quantity are definedand the quantified index of endangering standards of exclusive plants in this area are formulated. "endangering coefficient" and "priority protection value" are calculated by the quantifying assessment index and the distributing the weight value.Endangering situation and priority protection level of exclusive plants in this area are showed Comprehensively and objectively. |
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| Keywords: | eastern Alashan-western Erdos exclusive plants of narrow area quantifying assessment index priority protection value |
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