摘要
本文通过分析人类活动与生态环境退化之间的相互关系,研究了影响生态环境退化的敏感因子。在此基础上,通过建立生态环境敏感度的评价指标体系,利用层次分析法确定不同影响因子对生态环境敏感度的权重,并以榆林地区十二个县、市为单元,计算了各县市生态环境对人类活动的敏感度,从中可以看出:由于黄土丘陵沟壑区人类活动比风沙区强烈,黄土丘陵沟壑区几个县生态环境敏感度的值远高于风沙区的几个县市。
Based on the analysis of the relationship between the human activity and environmental deterioration, the sensitive factors influencing the eco-environmental change were studied, and by determining the weights of each factor to susceptibility of environmental deterioration with AHP method, the susceptibility of different counties in Yulin region were calculated. The results show that Loess hilly area is more subjective to deteriorate on eco-environment than the Desert area of the strong human activity and severe soil erosion.
基金
国家自然科学基金
关键词
榆林地区
人类活动
生态环境
敏感度
层次分析法
Yulin region
human activity
eco-environmental susceptibility
AHP approach
