Comprehensive Evaluation and Influencing Factor Analysis of Urban Ecological Water Security in Gansu Province Based on AHP-Entropy Method

Zhao Binhua; HuangJinhua; Li Zhanbin; LiJing; Zhou Chaoyan

doi:10.13961/j.cnki.stbctb.2023.01.020

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Comprehensive Evaluation and Influencing Factor Analysis of Urban Ecological Water Security in Gansu Province Based on AHP-Entropy Method

- Comprehensive Evaluation and Influencing Factor Analysis of Urban Ecological Water Security in Gansu Province Based on AHP-Entropy Method
- Bulletin of Soiland Water Conservation Vol. 43, Issue 1, Pages: 167-173(2023)
- 作者机构：
  
  1. 西安理工大学省部共建西北旱区生态水利国家重点实验室,陕西,西安,710048
  2. 旱区生态水文与灾害防治国家林业和草原局重点实验室,陕西,西安,710048
  3. 中国电建集团西北勘测设计研究院有限公司,陕西,西安,710065
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2023.01.020
  CLC： TV213.4
- Published：2023
- 稿件说明：
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Zhao Binhua, HuangJinhua, Li Zhanbin, et al. Comprehensive Evaluation and Influencing Factor Analysis of Urban Ecological Water Security in Gansu Province Based on AHP-Entropy Method[J]. Bulletin of Soiland Water Conservation, 2023, 43(1): 167-173.
DOI：

Zhao Binhua, HuangJinhua, Li Zhanbin, et al. Comprehensive Evaluation and Influencing Factor Analysis of Urban Ecological Water Security in Gansu Province Based on AHP-Entropy Method[J]. Bulletin of Soiland Water Conservation, 2023, 43(1): 167-173. DOI： 10.13961/j.cnki.stbctb.2023.01.020.

摘要

[目的] 综合评价甘肃省城市生态用水安全的关键影响因素，为协调地区生态、生产和生活的关系提供借鉴。[方法] 基于社会、经济、生态以及水资源开发利用，构建生态用水评价体系；综合层次分析法和熵值法得出权重，进行生态用水安全水平划分，并辨析生态用水安全主要影响因素。[结果] ①2020年嘉峪关、兰州和甘肃省整体生态用水安全指数值大于0.5，处于基本安全水平，其他12座城市均处于较不安全水平。 ②2011—2020年核心区的生态用水安全水平较低，主要受生态效益子系统影响。 ③绿化覆盖面积、生态环境用水比例、人均公园绿地面积和城市化水平是影响生态用水安全水平的主要障碍因子，其贡献度在45%以上。[结论] 甘肃省各市区生态用水安全不容乐观，需提高生态效益来改善甘肃省各市区生态用水安全。

Abstract

[Objective] The key influencing factors of urban ecological water security in Gansu Province were comprehensively evaluated in order to provide a reference for coordinating the relationship between regional ecology

production and life. [Methods] Based on social

economic

ecological

and water resource and development factors

an ecological water use evaluation system was constructed. The weights for each factor were obtained by a combination of analytic hierarchy process (AHP) and the entropy method. The level of ecological water security was categorized

and the main influencing factors of ecological water security were determined. [Results] ① In 2020

the overall ecological water security index values for Jiayuguan

Lanzhou

and Gansu Province were more than 0.5 (the basic safety level)

while the values for 12 of the cities were at relatively unsafe levels. ② The level of ecological water security in the core area from 2011 to 2020 was low

mainly affected by the ecological benefits subsystem. ③ The coverage area of green space

proportion of ecological environment water

per capita green space area of parks

and urbanization level were the main obstacles affecting the level of ecological water security

contributing more than 45%. [Conclusion] The ecological water security of each urban area in Gansu Province does not appear to be optimistic

and it will be necessary to improve ecological benefits in order to improve the ecological water security of each urban area in Gansu Province.

关键词

Keywords

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