Abstract
Abstract China has long faced the problem of uneven distribution of water resources in time and space. The state of water security is therefore a key factor in regional development. The Jing-Jin-Ji district in China, which includes Beijing, Tianjin and Hebei Province, faced severe water security problems. Therefore, to improve the management of water resources, water security should be properly evaluated. This study established a comprehensive evaluation index system for evaluation. Furthermore, it analyzed the impacts of the South-to-North Water Transfer Project (SNWTP), which fully reflects the impact of human activities on the spatial distribution of water resources and is an innovation. The results showed that the state of water security in the Jing-Jin-Ji district generally had an increasing trend, and the score of the overall evaluation was increased by 65.8%. The Middle Route of the SNWTP had played a major role in water security in resources criterion, which increased by 28.53% in 2015 and 13.64% in 2016. With social development, the general state of water security in the district was improving. These findings could provide a scientific basis for regional water resources management.
Highlights
Water resources are indispensable to social development, and water security is a key factor in national and regional development (Krysanova & White )
The water security assessment was divided into several criteria, and each of them contained different numbers of indicators
(2) The South-to-North Water Transfer Project (SNWTP) has played an important role in ensuring water security in the Jing-Jin-Ji district, especially in the resources criterion
Summary
Water resources are indispensable to social development, and water security is a key factor in national and regional development (Krysanova & White ). Bakker ( ) defined water security as an acceptable level of water-related risks to humans and ecosystems, coupled. Xia & Shi ( ) believes that water security refers to the quantity and quality of water resources needed for the survival and development of a country or region. Other researchers believe that it involves multiple criteria, such as society, economy and ecology (García et al ; Hamouda et al ; Song et al )
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