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Water Ecological Security Pattern Based on Hydrological Regulation Service: A Case Study of the Upper Hanjiang River

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  • Xinping Ma

    (School of Geography and Environment, Xianyang Normal University, Xianyang 712000, China
    School of Geographical Sciences and Tourism, Shaanxi Normal University, Xi’an 710126, China)

  • Jing Li

    (School of Geographical Sciences and Tourism, Shaanxi Normal University, Xi’an 710126, China)

  • Yuyang Yu

    (College of Tourism, Henan Normal University, Xinxiang 453000, China)

  • Xiaoting Xu

    (School of Geography and Environment, Xianyang Normal University, Xianyang 712000, China)

Abstract

Water ecological problems involve flood, drought, water pollution, destruction of water habitat and the tense relationship between humans and water. Water ecological problems are the main problems in the development of countries all over the world. In terms of ecological protection, China has put forward the ecological red line policy. Water ecology is an important component of the ecosystem, and the delineation of the water ecological red line is an important basis for ecological protection. Based on ecosystem services, this paper tries to determine the red line of the water ecology space and tries to solve various water problems comprehensively. Based on the ecosystem services accounting method, the SWAT (soil and water assessment tool) model was used to simulate the spatial–temporal dynamic quantities of water purification and rainwater infiltration services in the upper reaches of the Hanjiang River. The basin was divided into 106 sub-basins and 1790 HRUs (hydrological response units). Water quality data taken from 8 sites were used to verify the simulation results, and the verification results have high reliability. The grid scale spatialization of water quality and rainwater infiltration is realized based on HRU. The seasonal characteristics of hydrological regulation and control services were analyzed, the red line of hydrological regulation and control in the upper reaches of the Hanjiang River was defined, and the dynamic characteristics of water ecological red line were analyzed. According to the research results, the water ecological protection strategy of the basin is proposed. The prevention and control of water pollution should be emphasized in spring and summer, the prevention and control of rain flood infiltration in autumn and winter, and the normal monitoring and management should be adopted in the regulation and storage. The results of this study can provide scientific reference for water resources management and conservation policy making.

Suggested Citation

  • Xinping Ma & Jing Li & Yuyang Yu & Xiaoting Xu, 2024. "Water Ecological Security Pattern Based on Hydrological Regulation Service: A Case Study of the Upper Hanjiang River," Sustainability, MDPI, vol. 16(18), pages 1-18, September.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:18:p:7913-:d:1475440
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    References listed on IDEAS

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    1. Johnston, John M. & Barber, M. Craig & Wolfe, Kurt & Galvin, Mike & Cyterski, Mike & Parmar, Rajbir, 2017. "An integrated ecological modeling system for assessing impacts of multiple stressors on stream and riverine ecosystem services within river basins," Ecological Modelling, Elsevier, vol. 354(C), pages 104-114.
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    Cited by:

    1. Hao Meng & Zhoukai Gong & Chang Qian & Xiaofeng Zhao & Qianming Liu & Xinguo Bu & Chunzhu Shen, 2025. "Deciphering the Spatial Code: Identification and Optimization of Ecological Security Pattern—A Case Study of Jiangsu Province, China," Land, MDPI, vol. 14(9), pages 1-20, September.

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