| 近50年来毛乌素沙地草地生态脆弱性评价——以内蒙古乌审旗为例 |
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| 引用本文： | 靳毅,蒙吉军,黄姣.近50年来毛乌素沙地草地生态脆弱性评价——以内蒙古乌审旗为例[J].北京大学学报(自然科学版),2011(5):909-915. |
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| 作者姓名： | 靳毅 蒙吉军 黄姣 |
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| 作者单位： | 北京大学城市与环境学院地表过程分析与模拟教育部重点实验室; |
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| 基金项目： | 国家自然科学基金(40871048); 国家科技支撑计划课题(2006BAD20B07)资助 |
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| 摘 要： | 选择位于毛乌素沙地腹地的乌审旗作为研究区,基于1960年代,1978,1988,2000和2008年土地覆被数据,借助GIS空间分析技术,通过建立＂敏感性-弹性-压力＂生态脆弱性评价模型,对研究区近半个世纪的草地生态脆弱性进行动态评价。结果表明：乌审旗草地生态系统大部分属于中、低度脆弱区。50年间,草地生态脆弱性经历了...
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| 关 键 词： | 乌审旗 草地生态系统 脆弱性 |
Grassland Ecological Vulnerability Assessment of Mu Us Desert in Recent 50 Years:A Case Study of Wushen Banner |
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| JIN Yi,MENG Jijun,HUANG Jiao College of Urban , Environmental Sciences,Peking University,Laboratory for Earth Surface Processes,Beijing.Grassland Ecological Vulnerability Assessment of Mu Us Desert in Recent 50 Years:A Case Study of Wushen Banner[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2011(5):909-915. |
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| Authors: | JIN Yi MENG Jijun HUANG Jiao College of Urban Environmental Sciences Peking University Laboratory for Earth Surface Processes Beijing |
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| Institution: | JIN Yi,MENG Jijun,HUANG Jiao College of Urban and Environmental Sciences,Peking University,Laboratory for Earth Surface Processes(MOE),Beijing 100871 |
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| Abstract: | Mu Us Desert is one the most sensitive and vulnerable areas in China.Based on spatial analysis tool of GIS,this study performs a dynamic ecological vulnerability assessment of Wushen Banner in 1960s,1978,1988,2000 and 2008 by using the ecological vulnerability evaluation model established though analytic hierarchy process.The conclusion is that the majority parts of Wushen Banner belongs to middle and low vulnerable area.The grassland ecological vulnerability experienced decrease,increase and decrease in re... |
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| Keywords: | Wushen Banner grassland ecosystem vulnerability |
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