标题: Spatial-temporal variation characteristics and coupling coordination of the "water resources - water environment - water ecology" carrying capacity in the Three Gorges Reservoir Area

作者: Zhou, F (Zhou, Feng); Zhang, WS (Zhang, Wanshun); Jiang, AN (Jiang, Anna); Peng, H (Peng, Hong); Li, L (Li, Lin); Deng, LL (Deng, Langlang); Sun, YD (Sun, Yidian); Wang, H (Wang, Hao)

来源出版物: ECOLOGICAL INDICATORS  卷: 154  文献号: 110874  DOI: 10.1016/j.ecolind.2023.110874  出版年: OCT 2023  

摘要: The coordinated control and management of water resources, the water environment, and water ecology are essential for optimizing the management of water resources, improving the water environment, rehabilitating water ecosystems, and achieving sustainable development. Most studies conducted to investigate the water carrying capacity have focused primarily on water resources or water environment. However, it is challenging to conduct such research in areas where the interactions between water resources, the environment, and ecology are intricate. In this study, an evaluation indicator system for the water resources - water environment - water ecology carrying capacity (WCC) was constructed, and a coupling coordination model and GeoDetector were employed to systematically analyze the coupling coordination indices (CCI) among the water resource carrying capacity (WRECC), water environment carrying capacity (WENCC), and water ecology carrying capacity (WECCC), as well as the main influencing factors in the Three Gorges Reservoir Area (TGRA) from 2005 to 2018. The results showed that the numbers of counties and districts with a high CCI class gradually increased over this period. The percentage of Class V fluctuated from 0% to 7.7%, and the stability of the water system steadily increased. Spatially, the overall distribution pattern gradually increased from southwest to northeast, and both the single and interactive effects of anthropogenic factors on water systems gradually increased. The CCI was predominantly affected by factors such as the amount of surface water resources per capita, indices of water conservation, forest coverage, discharge of domestic sewage per capita, and water replenishment of the ecosystem. These results show that coordination between the WCC components should be strengthened to further improve water use and domestic water treatment efficiency. To achieve superior-class, effective, and environmentally friendly scientific governance, the productivity of water resources should be increased in areas where the disparity between water availability and the demand for socioeconomic development is severe, and sewage treatment processes should be closely regulated. It is also important to combine resource development and utilization with water ecological protection and management.

作者关键词: Water resources-water environment-water; ecology carrying capacity; Coupling coordination indices; Influencing factors; Three Gorges Reservoir Area

地址: [Zhou, Feng; Zhang, Wanshun; Jiang, Anna; Deng, Langlang; Sun, Yidian; Wang, Hao] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Zhang, Wanshun] Wuhan Univ, China Inst Dev Strategy & Planning, Wuhan 430079, Peoples R China.

[Zhang, Wanshun] Wuhan Univ, Sch Water Resources & Hydropower Engn, State Key Lab Water Resources & Hydropower Engn Sc, Wuhan 430072, Peoples R China.

[Peng, Hong] Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Peoples R China.

[Li, Lin] Zhejiang Dayu Informat Technol Ltd Co, Hangzhou 310002, Peoples R China.

[Wang, Hao] China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China.

通讯作者地址: Zhang, WS (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址: wszhang@whu.edu.cn

影响因子：6.9