摘要
吉林西部农业生态地质环境是一个典型的自然—经济—社会复合系统 ,生态地质环境脆弱性是人与自然相互作用、相互影响的结果。自然因素是基础 ,经济因素是关键 ,社会因素加剧了脆弱性的发展。本文从自然、经济和社会三方面建立了农业生态地质环境脆弱性的评价指标体系 ,并在时间尺度上对吉林西部农业生态地质环境的演化过程进行了分析。 3 0～ 4 0年代本区生态环境处于轻度脆弱状态 ;5 0～ 60年代发展到中度脆弱状态 ;70年代以来达到强度脆弱状态 ;特别是 80～ 95年为极强度脆弱状态 ,95年以后本区生态环境虽然有所好转 ,但仍处于强度脆弱状态。
The agro-eco-geological environment in the west of Jilin Province is a typical compound system of nature,economy and society.The agro-eco-geological environment vulnerability is interactional result of human and nature.The nature factors is the basic,the economical is the key,the societal aggravate the vulnerability.This article set up the appraise index system of agro-eco-geological environment vulnerability from nature,economy and society,analyzed the evolvement process of agro-eco-geological environment in the Jilin Province West in the time order.The vulnerability is low in 30~40 years,moderate in 50~60 years, intensity since 70 years, most intense the especially in 80~95 years.Although the agro-eco-geological environment begin to improve,the vulnerability is still in the intense state. \ \
出处
《干旱区资源与环境》
CSCD
1999年第4期15-20,共6页
Journal of Arid Land Resources and Environment
关键词
农业生态地质环境
脆弱性
综合研究
吉林西部
The agro-eco-geological environment,vulnerability,the compound system of nature,economy and society,the appraise index system,Jilin Province
