%0 Journal Article
%T Comprehensive quantitative assessment models for ecological environment in arid area<br>旱区生态环境质量的综合定量评价模型
%A SONG Song-Bai
%A <br>宋松柏
%J 生态学报
%D 2004
%I 
%X The quantitative assessment of local environmental conditions constitutes one of the most important issues for researchers in the area of sustainable development in arid areas. During the past two decades, a number of methods have been used to assess environmental quality. The methods include: comprehensive assessment methods, fuzzy assessment methods, gray system clustering, principle component analysis, factor analysis and projection pursuit algorithms. These models usually establish functions based on as...
%K arid area
%K ecological environment
%K indicators system
%K assessment method
%K artificial neural network<br>旱区
%K 生态环境质量
%K 指标体系
%K 评价方法
%K 人工神经网络
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=78F59F1B1FA49D35&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=708DD6B15D2464E8&sid=2C9CF52C913FA2D8&eid=BFBBE640BA5811AE&journal_id=1000-0933&journal_name=生态学报&referenced_num=17&reference_num=14