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Effects of human activities on hydrological drought patterns in the Yangtze River Basin, China

Author

Listed:
  • Donglai Jiao

    (Nanjing University of Posts and Telecommunications
    Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province)

  • Dajiang Wang

    (Nanjing University of Posts and Telecommunications)

  • Haiyang Lv

    (Nanjing University of Posts and Telecommunications)

Abstract

As an extremely important region for the socioeconomic development of China, the Yangtze River Basin (YRB) is vulnerable to climate change and natural disasters. In recent decades, hydrological droughts have jeopardized regional water supply, local ecosystem services, and economic development in this region. This study simulates the characteristics of hydrological droughts in the YRB using the PCR-GLOBWB v2.0 model and the variable threshold method. High-spatial-resolution (about 10 km) PCR-GLOBWB v2.0 simulations considering the effects of human activities closely match the observed hydrological data for the YRB. Thus, the results indicate that human activities directly influence the tempo-spatial characteristics of hydrological droughts in the YRB. Reservoir operation decreases the multi-year monthly discharge but increases low flow in the severe drought years in the middle and lower subbasins of the YRB. These findings highlight the uneven effects of human activities on hydrological droughts in the YRB. In conclusion, anthropogenic activities must be considered when developing future mitigation and adaptation strategies for the YRB.

Suggested Citation

  • Donglai Jiao & Dajiang Wang & Haiyang Lv, 2020. "Effects of human activities on hydrological drought patterns in the Yangtze River Basin, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 104(1), pages 1111-1124, October.
    • Handle: RePEc:spr:nathaz:v:104:y:2020:i:1:d:10.1007_s11069-020-04206-2
    DOI: 10.1007/s11069-020-04206-2
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    References listed on IDEAS

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    1. Meixiu Yu & Xiaolong Liu & Qiongfang Li, 2019. "Impacts of the Three Gorges Reservoir on its immediate downstream hydrological drought regime during 1950–2016," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 96(1), pages 413-430, March.
    2. Jian Fang & Feng Kong & Jiayi Fang & Lin Zhao, 2018. "Observed changes in hydrological extremes and flood disaster in Yangtze River Basin: spatial–temporal variability and climate change impacts," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 93(1), pages 89-107, August.
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    Cited by:

    1. Hasrul Hazman Hasan & Siti Fatin Mohd Razali & Nur Shazwani Muhammad & Asmadi Ahmad, 2022. "Modified Hydrological Drought Risk Assessment Based on Spatial and Temporal Approaches," Sustainability, MDPI, vol. 14(10), pages 1-28, May.
    2. Yeqing Zhai & Jie Liang & Zhenyu An & Xin Li & Ziqian Zhu & Wanting Wang & Yuru Yi & Suhang Yang, 2022. "Data Stream Approach for Exploration of Droughts and Floods Driving Forces in the Dongting Lake Wetland," Sustainability, MDPI, vol. 14(24), pages 1-17, December.

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