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Identifying and Classifying Pollution Hotspots to Guide Watershed Management in a Large Multiuse Watershed

Author

Listed:
  • Fangli Su

    (College of Water Conversation, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China
    Liaoning Shuangtai Estuary Wetland Ecosystem Research Station, Nanjingzi Village, Dongguo Town, Panshan County, Panjin City 124112, Liaoning Province, China
    Engineering School of Sustainable Infrastructure and Environment, Department of Environmental Engineering Sciences, University of Florida, 6 Phelps Lab, Gainesville, FL 32611-6350, USA)

  • David Kaplan

    (Engineering School of Sustainable Infrastructure and Environment, Department of Environmental Engineering Sciences, University of Florida, 6 Phelps Lab, Gainesville, FL 32611-6350, USA)

  • Lifeng Li

    (College of Water Conversation, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China
    Liaoning Shuangtai Estuary Wetland Ecosystem Research Station, Nanjingzi Village, Dongguo Town, Panshan County, Panjin City 124112, Liaoning Province, China)

  • Haifu Li

    (College of Water Conversation, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China
    Liaoning Shuangtai Estuary Wetland Ecosystem Research Station, Nanjingzi Village, Dongguo Town, Panshan County, Panjin City 124112, Liaoning Province, China)

  • Fei Song

    (College of Water Conversation, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China)

  • Haisheng Liu

    (College of Water Conversation, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China)

Abstract
In many locations around the globe, large reservoir sustainability is threatened by land use change and direct pollution loading from the upstream watershed. However, the size and complexity of upstream basins makes the planning and implementation of watershed-scale pollution management a challenge. In this study, we established an evaluation system based on 17 factors, representing the potential point and non-point source pollutants and the environmental carrying capacity which are likely to affect the water quality in the Dahuofang Reservoir and watershed in northeastern China. We used entropy methods to rank 118 subwatersheds by their potential pollution threat and clustered subwatersheds according to the potential pollution type. Combining ranking and clustering analyses allowed us to suggest specific areas for prioritized watershed management (in particular, two subwatersheds with the greatest pollution potential) and to recommend the conservation of current practices in other less vulnerable locations (91 small watersheds with low pollution potential). Finally, we identified the factors most likely to influence the water quality of each of the 118 subwatersheds and suggested adaptive control measures for each location. These results provide a scientific basis for improving the watershed management and sustainability of the Dahuofang reservoir and a framework for identifying threats and prioritizing the management of watersheds of large reservoirs around the world.

Suggested Citation

  • Fangli Su & David Kaplan & Lifeng Li & Haifu Li & Fei Song & Haisheng Liu, 2017. "Identifying and Classifying Pollution Hotspots to Guide Watershed Management in a Large Multiuse Watershed," IJERPH, MDPI, vol. 14(3), pages 1-14, March.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:3:p:260-:d:92098
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    Citations

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    Cited by:

    1. Tianheng Jiang & Maomao Wang & Wei Zhang & Cheng Zhu & Feijuan Wang, 2024. "A Comprehensive Analysis of Agricultural Non-Point Source Pollution in China: Current Status, Risk Assessment and Management Strategies," Sustainability, MDPI, vol. 16(6), pages 1-19, March.
    2. Yinan Zhang & Chunli Chu & Lei Liu & Shengguo Xu & Xiaoxue Ruan & Meiting Ju, 2017. "Water Environment Assessment as an Ecological Red Line Management Tool for Marine Wetland Protection," IJERPH, MDPI, vol. 14(8), pages 1-17, August.
    3. Zahra Allahdad & Saeed Malmasi & Morvarid Montazeralzohour & Seyed Mohammad Moein Sadeghi & Mohammad M. Khabbazan, 2022. "Presenting the Spatio-Temporal Model for Predicting and Determining Permissible Land Use Changes Based on Drinking Water Quality Standards: A Case Study of Northern Iran," Resources, MDPI, vol. 11(11), pages 1-14, November.
    4. Yikun Su & Hong Xue & Huakang Liang, 2019. "An Evaluation Model for Urban Comprehensive Carrying Capacity: An Empirical Case from Harbin City," IJERPH, MDPI, vol. 16(3), pages 1-25, January.

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