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%。
This paper evaluated the evaluation on soil erosion sensitivity sensitivity of soil erosion, stony mainly considered the factors of desertification and environmental sensitivity the force of precipitation erosion, texture and land covers. The evaluation on stony desertification sensitivity mainly considered the factors topography, of topograp The soil 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 × 10^5km^2） , 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.
出处
《生态学报》
CAS
CSCD
北大核心
2008年第11期5270-5278,共9页
Acta Ecologica Sinica
基金
云南省省院省校科技合作计划资助项目(2004YX43)~~
关键词
生态环境敏感性
云南省
评价
eco-environmental sensitivity
Yunnan province
evaluation
