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Hydrological Process Simulation of Sluice-Controlled Rivers in the Plains Area of China Based on an Improved SWAT Model

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Abstract

The construction and operation of sluices and dams inevitably change the natural state of river hydrology and have an impact on river ecosystems. Therefore, simulating the hydrological processes of sluice-controlled rivers is of great significance to river water resource management and ecological restoration. The present study analyzed the complex characteristics of the water cycle of sluice-controlled rivers in the plains area of China including the extraction of the river network’s canal system. The treatment of sluice dams and the simulation of the base flow process of the soil and water assessment tool (SWAT) were improved. A distributed hydrological model of the sluice-controlled rivers in the plains area was constructed. Then, we applied the model to the Shaying River Basin, which has many sluices and dams. The Nash–Sutcliffe efficiency coefficient, percentage deviation, and determination coefficient were used to evaluate the model. The evaluation indices and simulation results of the three hydrological stations in the basin show that the improved SWAT model more accurately identifies the effects of the regulation and storage of the sluices and dams on runoff in the plains area and demonstrates that this model is suitable for simulating the hydrological processes of the sluice-controlled rivers in the plains area.

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All data generated or analysed during this study are described in this published article.

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Funding

This study was funded by the National Natural Science Foundation of China (Grant Nos. 51509222 and 51709238), and the Joint Fund of State Key Lab of Hydroscience and Institute of Internet of Waters Tsinghua-Ningxia Yinchuan (Grant No. sklhse-2020-Iow11).

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All authors contributed to the original draft preparation. Methodology and model building: Rong Gan and Jie Tao; Data collection and analysis by Changzheng Chen and Yongqiang Shi; Writing—review and editing: Rong Gan, Changzheng Chen and Jie Tao; Supervision: Jie Tao. All authors read and approved final manuscript.

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Correspondence to Jie Tao.

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The authors declared that they have no conflicts of interest to this work.

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Gan, R., Chen, C., Tao, J. et al. Hydrological Process Simulation of Sluice-Controlled Rivers in the Plains Area of China Based on an Improved SWAT Model. Water Resour Manage 35, 1817–1835 (2021). https://doi.org/10.1007/s11269-021-02814-6

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  • DOI: https://doi.org/10.1007/s11269-021-02814-6

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