长江经济带水生态环境综合评价及区域差异

徐悦; 杨力; 张驰; 朱俊奇

doi:10.13961/j.cnki.stbctb.2023.01.029

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长江经济带水生态环境综合评价及区域差异

试验研究

- 长江经济带水生态环境综合评价及区域差异
- Comprehensive Evaluation of Water Eco-environment and Regional Differences in Yangtze River Economic Belt
- 水土保持通报 2023年43卷第1期页码：253-262
- 作者机构：
  
  安徽理工大学经济与管理学院,安徽,淮南,232001
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目“深部煤矿多灾种安全评价方法与应用研究”(71971003);国家社科基金重大项目(20ZDA084);安徽省教育厅人文社科重点项目(SK2020A0209);安徽省社会科学创新发展研究攻关项目(2020CX174)。
- DOI：10.13961/j.cnki.stbctb.2023.01.029
  中图分类号： F124;X826
- 纸质出版：2023
- 稿件说明：
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徐悦, 杨力, 张驰, 等. 长江经济带水生态环境综合评价及区域差异[J]. 水土保持通报, 2023,43(1):253-262.

Xu Yue, Yang Li, Zhang Chi, et al. Comprehensive Evaluation of Water Eco-environment and Regional Differences in Yangtze River Economic Belt[J]. Bulletin of Soiland Water Conservation, 2023, 43(1): 253-262.
徐悦, 杨力, 张驰, 等. 长江经济带水生态环境综合评价及区域差异[J]. 水土保持通报, 2023,43(1):253-262. DOI： 10.13961/j.cnki.stbctb.2023.01.029.

Xu Yue, Yang Li, Zhang Chi, et al. Comprehensive Evaluation of Water Eco-environment and Regional Differences in Yangtze River Economic Belt[J]. Bulletin of Soiland Water Conservation, 2023, 43(1): 253-262. DOI： 10.13961/j.cnki.stbctb.2023.01.029.

摘要

[目的] 对长江经济带水生态环境状态进行评价，为该区域制定相应的生态保护政策提供科学依据。[方法] 以DCSM模型和质性分析结果为框架，选取包含“驱动力—承载源—承载状态—管理”4个子系统的22个水生态环境指标。利用随机森林降维，确定12个高相关指标作为综合评价体系，结合加权秩和比模型和对抗解释结构模型对长江经济带11个省份2010—2019年水生态环境定级，并依据优劣程度确定排名。[结果] ①就整体而言，长江经济带各区域水生态环境差异明显，呈现下游优，上游次之，中游较差的非对称“U”型特征分布。 ②就空间分布而言，浙江水生态状态排名靠前，江苏、云南、贵州、安徽、江西、四川、重庆、湖北水生态状态排名呈“阶梯状”递减，湖南、上海排名靠后。 ③就分类指标而言，工业废水重复利用率、万元农业生产总值耗水量、万元工业产业增加值废水排放量等对水生态环境具有显著影响。[结论] 长江经济带总体水生态环境仍未达到安全稳态，因地制宜从多方面提升水生态环境质量，是推动长江经济带高水平可持续发展的重要动力。

Abstract

[Objective] The state of the water ecological environment in the Yangtze River Economic Belt was evaluated in order to provide a scientific basis for the formulation of ecological protection policies in the region. [Methods] Based on the DCSM model and qualitative analysis

22 water ecological environment indicators were selected which included the four subsystems of driving force

carrying source

state

and management. By using random forest dimensionality reduction

12 highly correlated indicators were identified as a comprehensive evaluation system. The water ecological environment of 11 provinces in the Yangtze River Economic Belt was ranked from 2010 to 2019 by combining the weighted rank sum ratio model and the adversarial interpretative structure model. The ranking was determined according to the degree of superiority and inferiority. [Results] ① In general

the water ecological environment of the Yangtze River Economic Belt differed significantly among regions

showing an asymmetric U-shaped distribution with the downstream region being superior

the upstream region being second

and the midstream region being worst. ② In terms of spatial distribution

the water ecological status of Zhejiang Province ranked first

while that of Jiangsu

Yunnan

Guizhou

Anhui

Jiangxi

Sichuan Province

Chongqing City

and Hubei Province decreased in a “steplike” descending manner

and that of Hunan Province and Shanghai City ranked low. ③ In terms of classification indexes

industrial wastewater reuse rate

water consumption of 10 000 yuan of agricultural GDP

and wastewater discharge of 10 000 yuan of industrial value added had significant impacts on the water ecological environment. [Conclusion] The overall water ecological environment of the Yangtze River Economic Belt has still not reached a safe and stable state. Improving the quality of the water ecological environment from various aspects according to local conditions is an important driving force for promoting high-level sustainable development of the Yangtze River Economic Belt.

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