Temporal-spatial patterns and coupling coordination degree of water resources carrying capacity of urban agglomeration in the middle reaches of the Yangtze River

被引:9
|
作者
Tian P. [1 ,2 ]
Wang J. [1 ,2 ]
Hua W. [1 ,2 ]
Hao F. [2 ]
Huang J. [1 ,2 ]
Gong Y. [1 ,2 ]
机构
[1] Key Laboratory for Geographical Process Analysis & Simulation Hubei Province, Wuhan
[2] College of Urban and Environmental Sciences, Central China Normal University, Wuhan
来源
Hupo Kexue/Journal of Lake Sciences | 2021年 / 33卷 / 06期
关键词
Coupling coordination degree; Improved entropy method; Temporal-spatial patterns; Urban agglomeration in the middle reaches of the Yangtze River; Water resources carrying capacity;
D O I
10.18307/2021.0621
中图分类号
学科分类号
摘要
The urban agglomeration in the middle reaches of the Yangtze River is a key area for implement the ecological priority green development strategy. This study selects 24 indicators from water resources subsystem, social subsystem, economic subsystem, and eco-environmental subsystem of the water resources carrying systemto construct a water resources carrying capacity evaluation system. The improved entropy weight TOPSIS model, spatial autocorrelation analysis and coupling coordination model are used to quantitatively evaluate the spatiotemporal process of water resources carrying capacity and the coupling coordination degree of the four subsystems in urban agglomeration in the middle reaches of the Yangtze River from 2012 to 2018. The results showed that, (1) The overall water resources carrying capacity of the urban agglomeration in the middle reaches of the Yangtze River shows a trend of slow increase (2012-2015), decrease (2015-2017), and rise again (2017-2018); (2) The spatial difference of water resources carrying capacity is not obvious (only behaving significant differences in 2016). The spatial difference of water resources carrying capacity of Wuhan Metropolitan Area is relatively significant and is characteristic of the spatial distribution characteristics of low values surrounding high values. (3) The carrying capacity of the eco-environmental subsystem of each city is relatively balanced, but the carrying capacity of other subsystems are quite different. (4) The main factors affecting the carrying capacity of water resources are daily treatment capacity of municipal wastewater treatment plants, GDP per capita, urbanization rate, proportion of tertiary industry and water resources per capita. (5) The coupling and coordination of water resources carrying systems in study area is generally at a medium moderate level, and water resources carrying capacity is positive correlation with the (degree of) coupling coordination. The research results can provide a basis ground for the improvement of water resources carrying capacity and the optimal allocation of water resources in the urban agglomeration in the middle reaches of the Yangtze River. © 2021 by Journal of Lake Sciences.
引用
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页码:1871 / 1884
页数:13
相关论文
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