基于“压力-状态-响应”模型的渭南市生态安全动态变化分析-陕西师范大学学报期刊社网站

陕西师范大学学报（自然科学版）

资源与环境科学

基于“压力-状态-响应”模型的渭南市生态安全动态变化分析

李小燕1，2，任志远2

(1 陕西理工学院历史文化系，陕西汉中 723001；2 陕西师范大学旅游与环境学院，陕西西安 710062)

李小燕，女，讲师，硕士，主要从事国土资源评价与区域发展研究．

摘要:

基于“压力-状态-响应”（P-S-R）模型，结合渭南市具体情况对指标体系进行调整，同时利用层次分析法(AHP)对研究区内生态环境进行动态变化分析，结果显示：1997—2003年，渭南市环境压力在逐年增大，环境质量在逐步改善，生态环境保护整治及建设能力在逐步增强，综合其三者，研究区生态环境虽然长期处于很不安全的状态，但总的来说是在朝着安全的方向发展的．

关键词：

生态安全； “压力-状态-响应”模型；动态变化；渭南市

收稿日期：

2007-10-08

中图分类号：

X1711

文献标识码：

文章编号：

1672-4291(2008)05-0082-04

基金项目：

国家自然科学基金资助项目(40771019)；陕西理工学院校内基金资助项目（SLGQD0619）

Doi:

The dynamic change analysis of Weinan city′s ecological security based on P-S-R

LI Xiao-yan1，2， REN Zhi-yuan2

(1 Department of History and Culture, Shaanxi University of Technology,Hanzhong 723001,Shaanxi,China; 2 College of Tourism and Enviroment Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)

Abstract:

According to the analyzed specific statement of Weinan, Shaanxi Province, this research adjusted the indices system based on the P-S-R model, and analyzed the dynamic change of the ecological environment of the area using AHP. The results indicated that the environment pressure was increasing year by year; the environment quality was improving gradually; and the ability of the ecological environment protection renovation and construction was strengthening gradually from 1997 to 2003. In summary, the ecological environment of the research area was developing in the security direction, although it had been under the insecurity statement for a long time.

KeyWords:

ecological security; P-S-R model; dynamic change; Weinan city