Water Science and Engineering 2015, 8(2) 102-113 DOI:   10.1016/j.wse.2015.04.007  ISSN: 1674-2370 CN: 32-1785/TV

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Keywords
Water resources carrying capacity
Hydro-economic interaction
Sustainable socioeconomic scale
Water resources carrying level
Henan Province
Authors
Ming Dou
Jun-xia Ma
Gui-qiu Li
Qi-ting Zuo
PubMed
Article by Ming Dou
Article by Jun-xia Ma
Article by Gui-qiu Li
Article by Qi-ting Zuo

Measurement and assessment of water resources carrying capacity in Henan Province, China

Ming Dou*, Jun-xia Ma, Gui-qiu Li, Qi-ting Zuo

College of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, PR China

Abstract

As demands on limited water resources intensify, concerns are being raised about water resources carrying capacity (WRCC), which is defined as the maximum sustainable socioeconomic scale that can be supported by available water resources and while maintaining defined environmental conditions. This paper proposes a distributed quantitative model for WRCC, based on the principles of optimization, and considering hydro-economic interaction, water supply, water quality, and socioeconomic development constraints. With the model, the WRCCs of 60 subregions in Henan Province were determined for different development periods. The results showed that the water resources carrying level of Henan Province was suitably loaded in 2010, but that the province would be mildly overloaded in 2030 with respect to the socioeconomic development planning goals. The restricting factors for WRCC included the available water resources, the increasing rate of GDP, the urbanization ratio, the irrigation water utilization coefficient, the industrial water recycling rate, and the wastewater reuse rate, of which the available water resources was the most crucial factor. Because these factors varied temporally and spatially, the trends in predicted WRCC were inconsistent across different subregions and periods.

Keywords Water resources carrying capacity   Hydro-economic interaction   Sustainable socioeconomic scale   Water resources carrying level   Henan Province  
Received 2013-09-29 Revised 2014-12-25 Online: 2015-04-30 
DOI: 10.1016/j.wse.2015.04.007
Fund:
Corresponding Authors: Ming Dou
Email: dou_ming@163.com
About author:

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