基于DPSIR模型的渭河干流甘肃段生态安全评价

邵月花; 杨调调; 谈存峰

doi:10.13961/j.cnki.stbctb.2022.03.022

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基于DPSIR模型的渭河干流甘肃段生态安全评价

试验研究

- 基于DPSIR模型的渭河干流甘肃段生态安全评价
- Ecological Security Evaluation of Gansu Section of Weihe River Based on DPSIR Model
- 水土保持通报 2022年42卷第3期页码：166-170
- 作者机构：
  
  甘肃农业大学财经学院,甘肃,兰州,730070
- 作者简介：
- 基金信息：
  
  甘肃省自然科学基金项目“黄河流域（甘肃段）面源污染遥感监测及污染空间特征解析”（20JR10RA442）;甘肃省技术创新引导计划—软科学专项（21CXZ6A076）;甘肃省教育厅优秀研究生“创新之星”项目（2021CXZX-384）
- DOI：10.13961/j.cnki.stbctb.2022.03.022
  中图分类号： X826;X171.1
- 纸质出版：2022
- 稿件说明：
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邵月花, 杨调调, 谈存峰. 基于DPSIR模型的渭河干流甘肃段生态安全评价[J]. 水土保持通报, 2022,42(3):166-170.

Shao Yuehua, Yang Diaodiao, Tan Cunfeng. Ecological Security Evaluation of Gansu Section of Weihe River Based on DPSIR Model[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 166-170.
邵月花, 杨调调, 谈存峰. 基于DPSIR模型的渭河干流甘肃段生态安全评价[J]. 水土保持通报, 2022,42(3):166-170. DOI： 10.13961/j.cnki.stbctb.2022.03.022.

Shao Yuehua, Yang Diaodiao, Tan Cunfeng. Ecological Security Evaluation of Gansu Section of Weihe River Based on DPSIR Model[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 166-170. DOI： 10.13961/j.cnki.stbctb.2022.03.022.

摘要

[目的] 分析渭河干流甘肃段生态安全现状，为该流域生态文明建设提供理论依据。[方法] 通过DPSIR模型构建渭河干流甘肃段生态安全评价指标体系，运用组合赋权法确定指标权重，并利用障碍模型诊断障碍因子。[结果] ①渭河干流甘肃段生态安全指数呈先降后升的趋势，生态安全等级由Ⅳ（较危险）经Ⅴ（危险）先向Ⅳ（较危险）再向Ⅲ（预警）转变；②项目层指数变化幅度较小，驱动力、压力和影响指数波动下降，状态和响应指数波动上升，生态安全状况整体有所好转；③人口增长率、经济增长率、植被覆盖率、城镇污水处理率和农业用水利用率是影响渭河干流甘肃段生态安全的主要障碍因子。[结论] 未来应注重经济、政治、文化、生态环境四者的有机统一，进一步推动经济与生态的和谐发展。

Abstract

[Objective] The ecological security status of the Gansu section of the main stream of the Weihe River was analyzed in order to provide a theoretical basis for ecological civilization construction of the river basin.[Methods] The DPSIR model was used to construct an ecological security evaluation index system for the Gansu section of the Weihe River. A combined weighting method was used to determine the index weight. An obstacle model was used to diagnose obstacle factors.[Results] ① The ecological safety index of the Gansu section of the main stream of the Weihe River initially decreased and then increased. The level of ecological safety changed from class Ⅳ (more dangerous) to Ⅴ (dangerous) to Ⅳ (more dangerous)

and then to Ⅲ (forewarning); ② The project-level index exhibited a small degree of change. Fluctuations in the driving force

pressure

and impact index decreased. Fluctuations in the status and response index increased. The overall ecological security situation improved; ③ Population growth rate

economic growth rate

vegetation coverage rate

urban sewage treatment rate

and agricultural water use efficiency were the main obstacles affecting the ecological security of the Gansu section of the Weihe River.[Conclusion] In the future

greater attention should be focused on the integral unity of economy

politics

culture

and ecological environment

so as to further promote the harmonious development of the economy and ecology.

关键词

Keywords

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