Spatiotemporal differentiation and influencing factors of urban water supply system resilience in the Yangtze River Delta urban agglomeration

被引:3
作者
Sun, Dongying [1 ]
Gu, Jiarong [1 ]
Chen, Junyu [2 ]
Xia, Xilin [3 ]
Chen, Zhisong [4 ]
机构
[1] Jiangsu Univ, Sch Management, Zhenjian 212013, Peoples R China
[2] Suzhou Univ Sci & Technol, Sch Business, Suzhou 215009, Peoples R China
[3] Loughborough Univ, Sch Architecture Bldg & Civil Engn, Loughborough LE11 3TU, Leics, England
[4] Nanjing Normal Univ, Business Sch, Nanjing 210023, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Urban water supply system resilience; Spatial correlation analysis; Influence mechanism; Yangtze River Delta urban agglomeration; CLIMATE-CHANGE; SUSTAINABILITY; VULNERABILITY; RELIABILITY; MANAGEMENT; MODEL; GOVERNANCE; INDICATORS; CHALLENGES; FLOOD;
D O I
10.1007/s11069-022-05381-0
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Because of the ever-increasing impact of climate change and human activities, urban water supply systems encounter multifaceted challenges in providing sustainable services under various uncertainties. Urban water supply system resilience (UWSSR) refers to the ability of a water supply system to maintain its functional stability and adapt to changes. This study aims to analyze the spatial and temporal differences of UWSSR characteristics in the Yangtze River Delta urban agglomeration of China, as well as the contributing factors. Twelve indicators are selected to establish the evaluation framework, and the composite index is calculated using the coefficient of variation method. The spatial agglomeration and distribution characteristics are discussed based on spatial correlation analysis. The results show that (i) UWSSR does not improve significantly with time because it is mainly constrained by the extent of water resources. (ii) UWSSR has a significant spatial correlation for most years, but the spatial agglomeration pattern is not significant. (iii) UWSSR is positively influenced by public services and negatively influenced by public regulation and the level of urbanization during two successive stages. The variables whose regression coefficients changed during these stages are per capita gross domestic product, public financial resources, level of industrialization, public investment in water supply facilities, and public investment in science and technology. This means that the impact of these variables on resilience inverted from promotion to inhibition or from inhibition to promotion. Therefore, this study provides a reliable framework to evaluate the status of UWSSR and its driving factors, which can support effective management practices.
引用
收藏
页码:101 / 126
页数:26
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