基于PSR-熵权模糊物元模型的渭河流域甘肃段生态安全评价  

Research on Ecological Security Evaluation of Gansu Section of Weihe River Based on PSR-Entropy Fuzzy Matter-Element Model

作　　者：齐娟飞 杨调调 邵月花 谈存峰 Qi Juanfei;Yang Diaodiao;Shao Yuehua;Tan Cunfeng(College of Finance and Economics,Gansu Agricultural University,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃农业大学财经学院,兰州730070

出　　处：《国土与自然资源研究》2024年第6期53-57,共5页Territory & Natural Resources Study

基　　金：甘肃省教育厅优秀研究生“创新之星”项目(2021CXZX-384);甘肃省技术创新引导计划-软科学专项(21CXZ6A076)。

摘　　要：流域生态安全是人类生存发展的重要保障。渭河作为黄河第一大支流,对其进行生态安全评价对渭河甚至黄河流域高质量发展有着重要意义。基于压力-状态-响应(PSR)框架构建渭河流域甘肃段生态安全评价指标体系,运用熵权模糊物元模型对2010-2019年渭河流域甘肃段6个县区的生态安全进行动态评价。2010-2019年渭河流域甘肃段生态安全总体上呈现良好状况且提升稳健,生态安全欧式贴近度值由0.542上升至0.597,但6县区发展不均衡。渭源县、甘谷县和秦州区流域生态安全状况呈向好态势发展,陇西县和武山县生态安全状态有待进一步提升,麦积区生态安全欧式贴近度位于6县区的最末端。未来渭河干流六县区仍需高度重视流域生态安全并建立预警机制,从而更好地促进渭河流域甘肃段整体流域生态安全状态的提升。Basin ecological security is an important guarantee for human survival and development.As the largest tributary of the Yellow River,the Weihe River is of great significance to the high-quality development of the Weihe River and even the Yellow River Basin.Based on the pressure-state-response(PSR)framework,this paper constructs an ecological security evaluation index system in the Gansu section of the Weihe River Basin,and uses the entropy weighted fuzzy matter-element model to dynamically evaluate the ecological security of six counties in the Gansu section of the Weihe River Basin from 2010 to 2019.From 2010 to 2019,the ecological security of the Gansu section of the Weihe River Basin was generally in good condition and improved steadily,and the European-style progress value of ecological security increased from 0.542 to 0.597,but the development of the six counties and districts was uneven.The ecological security status of the river basin in the prefecture is developing in a positive trend.The ecological security status of Longxi County and Wushan County needs to be further improved.The ecological security progress of Maiji District is at the end of the six counties.In the future,the six counties and districts of the main stream of the Weihe River still need to attach great importance to the ecological security of the basin and establish an early warning mechanism,so as to better promote the improvement of the overall ecological security status of the Gansu section of the Weihe River basin.

关 键 词：流域生态安全 PSR模型 模糊物元模型 熵权法 

分 类 号：X826[环境科学与工程—环境工程] X821