摘要
针对山东大汶河流域的自然条件及人为干扰状况建立了该流域生态脆弱性评价指标体系,利用地理信息系统软件ARC/INFO空间分析功能,进行主成分分析得到因子权重,提出了生态环境脆弱指数模型,获取了该流域的脆弱度,从而为该流域环境恢复与重建提供科学的依据。
Eco-environmental vulnerability evaluation index system of Dawenhe River drainage area of Shandong Province is based on the natural conditions and active jamming conditions. By utilizing the special analyzing ability of ARC/INFO, the GIS software, the principal component analysis is made to get the factor weight, put forward the eco-environmental vulnerability model and obtain the vulnerability of this drainage area, providing the scientific basis for recovering and re-building the environment of this drainage area.
出处
《科技情报开发与经济》
2005年第5期208-210,共3页
Sci-Tech Information Development & Economy
关键词
空间主成分分析
生态脆弱性评价
山西省大汶河流域
principal component analysis
eco-environmental vulnerability evaluation
Dawenhe River drainage area
Shandong Province
