Study on Water Resources Efficiency with the Regional Water Resources Carrying Capacity into Consideration

Xifeng Wang
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Xifeng Wang: Institute of Quantitative and Technical Economics, Chinese Academy of Social Sciences, No. 5 Jianguomennei Street, Dongcheng District, Beijing 100732, P. R. China2State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin (SKL-WAC), China Institute of Water Resources and Hydropower Research (IWHR), Room 936 of Block D, Jia No.1 Fuxing Road, Haidian District, Beijing 100038, P. R. China

Chinese Journal of Urban and Environmental Studies (CJUES), 2018, vol. 06, issue 04, 1-16

Abstract: Most of the existing studies on regional water resources efficiency only consider the total regional water use while ignoring the regional endowment. Therefore, it is essential to introduce the water resources carrying capacity into the study. Given that data envelopment analysis (DEA) cannot compare the time series of a single decision-making unit, we employ the DEA-window analysis to study China’s water resources efficiency during 2005–2012 with the regional carrying capacity being considered, and analyze the spatiotemporal evolution. The study shows that such efficiency has increased from 0.71 in 2005 to 0.79 in 2012. High water resources efficiency is observed in Liaoning, Tibet, Yunnan, Beijing, Tianjin, Shanghai, Jiangsu, Zhejiang, Guangdong and Sichuan, where the output levels and utilization ratios of water resources are positively correlated. Low water resources efficiency is observed in Henan, Shaanxi, Gansu, Ningxia and Xinjiang which feature high-level utilization and low carrying capacity of water resources. As for regional water resources efficiency, eastern and southern coastal regions rank first, followed by Northeast China and northern coastal regions, southwest and northwest regions of China and lastly the middle reaches of the Yellow and Yangtze Rivers. Therefore, policy-makers should not only accord the regional development with carrying capacity, but also enhance cross-regional industrial cooperation for coordinated development.

Keywords: Water resource carrying capacity; water resources efficiency; DEA-window analysis (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S2345748118500239

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