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Urban water scarcity in China: A systematic review of research advances and future directions

Journal

APPLIED GEOGRAPHY
Volume 159, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.apgeog.2023.103069

Keywords

Urban landscape sustainability; Water security; Water quantity; Water quality; Climate change; Urbanization

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Urban water scarcity in China has become a major hindrance to socioeconomic development. A comprehensive review of literature from 2002 to 2022 reveals that China's UWS has been receiving increasing attention, with 107 cities experiencing water stress. The research mainly focuses on large cities and the quantity-induced UWS in North China and Northwest China, as well as the quality-induced UWS nationwide. While various indicators have been used in UWS assessments, there is still a lack of a comparable evaluation system. Moreover, comprehensive assessments of driving forces, effects, and solutions are still insufficient.
Urban water scarcity (UWS) has become a major constraint on socioeconomic development. To understand the research advances of UWS in China, we systematically reviewed literature published from 2002 to 2022. First, we quantified the 112 relevant publications' characteristics and summarized the relative methods. Then, we reviewed the evaluation results, influencing factors, socioeconomic and environmental effects, and response strategies. Furthermore, we discussed the challenges of existing research and proposed future directions. We found that China's UWS has gradually received more attention. The literature showed that 107 cities were waterstressed. Relative studies focused on large cities and the quantity-induced UWS in North China and Northwest China and the quality-induced UWS across the country. Thirteen classes of indicators were frequently used in UWS assessments, but a comparable evaluation system across different scales and cities is still lacking. China's UWS is mainly attributed to human activities followed by climate change and has influenced the environment, residents' health, and economic development within and beyond cities, but comprehensive assessments of driving forces, effects and solutions are lacking. To promote UWS research and improve urban sustainability under new-type urbanization and climate change, a framework covering various data sources, multiple scales, and diverse dimensions was proposed.

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