摘要
以兰州市为例,探讨了生态系统健康的内涵和评价方法,运用压力-状态-响应(PSR)模型构建了城市生态系统健康的指标体系;运用因子分析法确定主要目标及权重,同时结合模糊优选理论模型进行健康评价。研究结果表明:运用PSR模型将各要素指标联系起来,并考虑到它们之间的相互关系,可以实现生态系统健康评价;2000～2006年间兰州市生态系统健康程度呈上升趋势,但总体水平仍不高。
The connotation and assessment method toward urban ecological health was discussed. As a case study in Lanzhou, the index system of urban ecosystem health was set up by using the frame of pressure, status and response. The principal components method was set up by using the frame of pressure, and combined with Fuzzy optimal assessment model to assess the urban ecosystem health. Results showed that the model which links various factors and considering interactions is helpful to achieve a comprehensive evaluation for urban ecological health. It also showed that healthy degree of Lanzhou city ecosystem rises continuously, but general level is not high during 2000- 2006.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2010年第3期77-82,共6页
Journal of Arid Land Resources and Environment
基金
2008年度国家社会科学基金项目(08AM2003)
西北师范大学三期"知识与科技创新工程"项目(NWNU-KJCXGC-03-20)资助
作者简介
张晓琴（1983-），女，甘肃省景泰县人，硕士研究生，研究方向：城市与区域发展。E—mail：cici-pig1@163．com
通讯作者：石培基（1961-），男，汉族，甘肃临洮县人，教授，主要从事城市与区域发展工作。E-mail：shipj@nwnu．edu．cn
