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A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China

JIN Xin,  HE Chansheng,  ZHANG Lanhui,  ZHANG Baoqing

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文章导航 > Chinese Geographical Science  > 2018 >  28(1): 47-60
JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. 中国地理科学, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
引用本文: JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. 中国地理科学, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
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JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. Chinese Geographical Science, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
Citation: JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. Chinese Geographical Science, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
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A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China

doi: 10.1007/s11769-018-0931-0
  • 1.

    College of Geographical Science, Qinghai Normal University, Xining 810016, China;

  • 2.

    Key Laboratory of West China's Environ-mental System(Ministry of Education), Center for Dryland Water Resources Research and Watershed Science, College of Environment and Earth Science, Lanzhou University, Lanzhou 730000, China;

  • 3.

    Department of Geography, Western Michigan University, Kalama-zoo, MI 49008, USA

基金项目: Under the auspices of Natural Science Foundation of Qinghai Province (No. 2017-ZJ-961Q), National Natural Science Foundation of China (No. 91125010, 41530752), Scherer Endowment Fund of Department of Geography, Western Michigan University
详细信息
    通讯作者:

    HE Chansheng

A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China

  • 1.

    College of Geographical Science, Qinghai Normal University, Xining 810016, China;

  • 2.

    Key Laboratory of West China's Environ-mental System(Ministry of Education), Center for Dryland Water Resources Research and Watershed Science, College of Environment and Earth Science, Lanzhou University, Lanzhou 730000, China;

  • 3.

    Department of Geography, Western Michigan University, Kalama-zoo, MI 49008, USA

Funds: Under the auspices of Natural Science Foundation of Qinghai Province (No. 2017-ZJ-961Q), National Natural Science Foundation of China (No. 91125010, 41530752), Scherer Endowment Fund of Department of Geography, Western Michigan University
More Information
    Corresponding author: HE Chansheng

  • 摘要: Interactions between surface water and groundwater are dynamic and complex in large endorheic river watersheds in Northwest China due to the influence of both irrigation practices and the local terrain. These interactions interchange numerous times throughout the middle reaches, making streamflow simulation a challenge in endorheic river watersheds. In this study, we modified the linear-reservoir groundwater module in SWAT (Soil and Water Assessment Tools, a widely used hydrological model) with a new nonlinear relationship to better represent groundwater processes; we then applied the original SWAT and modified SWAT to the Heihe River Watershed, the second largest endorheic river watershed in Northwest China, to simulate streamflow. After calibrating both the original SWAT model and the modified SWAT model, we analyzed model performance during two periods:an irrigation period and a non-irrigation period. Our results show that the modified SWAT model with the nonlinear groundwater module performed significantly better during both the irrigation and non-irrigation periods. Moreover, after comparing different runoff components simulated by the two models, the results show that, after the implementation of the new nonlinear groundwater module in SWAT, proportions of runoff components changed-and the groundwater flow had significantly increased, dominating the discharge season. Therefore, SWAT coupled with the non-linear groundwater module repre-sents the complex hydrological process in the study area more realistically. Moreover, the results for various runoff components simulated by the modified SWAT models can be used to describe the hydrological characteristics of lowland areas. This indicates that the modified SWAT model is applicable to simulate complex hydrological process of arid endorheic rivers.
    Abstract: Interactions between surface water and groundwater are dynamic and complex in large endorheic river watersheds in Northwest China due to the influence of both irrigation practices and the local terrain. These interactions interchange numerous times throughout the middle reaches, making streamflow simulation a challenge in endorheic river watersheds. In this study, we modified the linear-reservoir groundwater module in SWAT (Soil and Water Assessment Tools, a widely used hydrological model) with a new nonlinear relationship to better represent groundwater processes; we then applied the original SWAT and modified SWAT to the Heihe River Watershed, the second largest endorheic river watershed in Northwest China, to simulate streamflow. After calibrating both the original SWAT model and the modified SWAT model, we analyzed model performance during two periods:an irrigation period and a non-irrigation period. Our results show that the modified SWAT model with the nonlinear groundwater module performed significantly better during both the irrigation and non-irrigation periods. Moreover, after comparing different runoff components simulated by the two models, the results show that, after the implementation of the new nonlinear groundwater module in SWAT, proportions of runoff components changed-and the groundwater flow had significantly increased, dominating the discharge season. Therefore, SWAT coupled with the non-linear groundwater module repre-sents the complex hydrological process in the study area more realistically. Moreover, the results for various runoff components simulated by the modified SWAT models can be used to describe the hydrological characteristics of lowland areas. This indicates that the modified SWAT model is applicable to simulate complex hydrological process of arid endorheic rivers.
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  • 收稿日期:  2017-01-09
  • 修回日期:  2017-05-02
  • 刊出日期:  2018-02-27

A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China

doi: 10.1007/s11769-018-0931-0
  • 1. College of Geographical Science, Qinghai Normal University, Xining 810016, China;
  • 2. Key Laboratory of West China's Environ-mental System(Ministry of Education), Center for Dryland Water Resources Research and Watershed Science, College of Environment and Earth Science, Lanzhou University, Lanzhou 730000, China;
  • 3. Department of Geography, Western Michigan University, Kalama-zoo, MI 49008, USA
    • 基金项目:  Under the auspices of Natural Science Foundation of Qinghai Province (No. 2017-ZJ-961Q), National Natural Science Foundation of China (No. 91125010, 41530752), Scherer Endowment Fund of Department of Geography, Western Michigan University
    通讯作者: HE Chansheng
  • 收稿日期: 2017-01-09
  • 修回日期: 2017-05-02
  • 刊出日期: 2018-02-27

摘要: Interactions between surface water and groundwater are dynamic and complex in large endorheic river watersheds in Northwest China due to the influence of both irrigation practices and the local terrain. These interactions interchange numerous times throughout the middle reaches, making streamflow simulation a challenge in endorheic river watersheds. In this study, we modified the linear-reservoir groundwater module in SWAT (Soil and Water Assessment Tools, a widely used hydrological model) with a new nonlinear relationship to better represent groundwater processes; we then applied the original SWAT and modified SWAT to the Heihe River Watershed, the second largest endorheic river watershed in Northwest China, to simulate streamflow. After calibrating both the original SWAT model and the modified SWAT model, we analyzed model performance during two periods:an irrigation period and a non-irrigation period. Our results show that the modified SWAT model with the nonlinear groundwater module performed significantly better during both the irrigation and non-irrigation periods. Moreover, after comparing different runoff components simulated by the two models, the results show that, after the implementation of the new nonlinear groundwater module in SWAT, proportions of runoff components changed-and the groundwater flow had significantly increased, dominating the discharge season. Therefore, SWAT coupled with the non-linear groundwater module repre-sents the complex hydrological process in the study area more realistically. Moreover, the results for various runoff components simulated by the modified SWAT models can be used to describe the hydrological characteristics of lowland areas. This indicates that the modified SWAT model is applicable to simulate complex hydrological process of arid endorheic rivers.

English Abstract

JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. 中国地理科学, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
引用本文: JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. 中国地理科学, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
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JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. Chinese Geographical Science, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
Citation: JIN Xin, HE Chansheng, ZHANG Lanhui, ZHANG Baoqing. A Modified Groundwater Module in SWAT for Improved Streamflow Simulation in a Large, Arid Endorheic River Watershed in Northwest China[J]. Chinese Geographical Science, 2018, 28(1): 47-60. doi: 10.1007/s11769-018-0931-0
shu

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