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作 者 ：李东梅,吴晓青,于德永*,高正文,吴钢1

期 刊 ：生态学报 2008年 28卷 11期 页码：5270~5278

关键词：生态环境敏感性；云南省；评价；

Keywords:eco-environmental sensitivity, Yunnan province, evaluation,

摘 要 ：分别进行了云南省土壤侵蚀敏感性、石漠化敏感性和生境敏感性评价，其中土壤侵蚀敏感性评价主要考虑了降水侵蚀力、地形、土壤质地和地表覆盖因素；石漠化敏感性评价主要考虑了地形、地貌、植被盖度因素；生境敏感性评价主要根据生态系统类型中物种丰富度，以及国家与省级保护对象的分布数量进行评价。结果表明：土壤侵蚀的轻度敏感、中度敏感地区分别占云南省面积(3.84×105km2)的35.61％、41.30％。石漠化不敏感地区、敏感地区分别占云南省面积的65.09%、34.91%。生境不敏感地区、高度敏感地区及极度敏感地区分别占全省面积的41.50％、39.69％、14.25%。

Abstract:This paper evaluated the sensitivity of soil erosion，stony desertification and environmental sensitivity. The evaluation on soil erosion sensitivity mainly considered the factors of the force of precipitation erosion，topography，soil texture and land covers. The evaluation on stony desertification sensitivity mainly considered the factors of topography，geomorphology and vegetation cover. The evaluation on environmental sensitivity mainly considered species richness and species quantity protected by the nation or Yunnan province. The results showed that the areas slightly sensitive and moderate sensitive to soil erosion make up 35.61％ and 41.30％ of the province (3.84×105km2)，respectively. The regions not sensitive and sensitive to stony desertification comprise about 65.09% and 34.91% of the province，respectively. The areas with no，high and extreme environmental sensitivity make up 41.50％，39.69％ and 14.25% of the province.

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