地理空间信息2024，Vol.22Issue(8)：45-49,5.DOI:10.3969/j.issn.1672-4623.2024.08.010
汾河流域生态系统脆弱性评估及变化分析
Ecosystem Vulnerability Assessment and Change Analysis in Fen River Basin
摘要
Abstract
To explore the ecosystem vulnerability of Fen River basin and its spatio-temporal distribution,and to provide support for formulation of ecological governance policy,taking Fen River basin as the study area,we used SRP model,AHP method and entropy weight method to con-struct the ecological vulnerability assessment system,and used GIS spatial analysis method to detect the spatio-temporal changes of ecological vulnerability.The results show that①as a whole,the ecological vulnerability of Fen River basin decreases from 0.47 to 0.37,with some improve-ment.②From the perspective of each sub basin,the changes in ecological vulnerability mainly occur in the upper reaches of Fen River basin,with multiple sub basins experiencing a decrease in vulnerability levels.As of 2020,the spatial distribution pattern shows a low in the north and high in the south.③From the perspective of spatial distribution pattern,the overall spatial clustering degree of ecological vulnerability in Fen River basin has weakened,and the high-high clustering phenomenon in Taiyuan and its surrounding areas has also been eliminated.The division of restricted development areas such as ecological functional zones and the transformation and upgrading of real estate industries such as Taiyuan have effectively improved the local ecosystem vulnerability.Continuous efforts should be made to close and transform the entire watershed,close existing polluting enterprise projects,vigorously develop service industries and modern agriculture,and implement targeted policies of returning farmland to forests and grasslands to increase the vegetation coverage of watershed.关键词
汾河流域/流域生态系统/脆弱性评估/空间格局/变化分析Key words
Fen River basin/watershed ecosystem/vulnerability assessment/spatial pattern/change analysis分类
天文与地球科学引用本文复制引用
李占兴,王艳慧..汾河流域生态系统脆弱性评估及变化分析[J].地理空间信息,2024,22(8):45-49,5.基金项目
国家自然科学基金资助项目(41771157) （41771157）
国家重点研发计划资助项目(2018YFB0505400) （2018YFB0505400）
北京市长城学者资助项目(CIT&TCD20190328). （CIT&TCD20190328）
