中国地理科学 ›› 2016, Vol. 26 ›› Issue (6): 789-802.doi: 10.1007/s11769-016-0838-6

• 论文 • 上一篇    下一篇

Evaluating Functions of Reservoirs' Storage Capacities and Locations on Daily Peak Attenuation for Ganjiang River Basin Using Xinanjiang Model

DU Jinkang1,2, ZHENG Dapeng3, XU Youpeng1, HU Shunfu4, XU Chongyu5,6   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China;
    2. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China;
    3. Anhui Electric Power Design Institute of China Energy and Electricity Construction Group, Hefei 230601, China;
    4. Department of Geography, Southern Illinois University Edwardsville, Edwardsville IL 62026, USA;
    5. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;
    6. Department of Geosciences, University of Oslo, N-0316 Oslo 1047 Blindern, Norway
  • 收稿日期:2016-01-18 修回日期:2016-05-02 出版日期:2016-12-27 发布日期:2016-11-05
  • 通讯作者: XU Chongyu.E-mail:chongyu.xu@geo.uio.no E-mail:chongyu.xu@geo.uio.no
  • 基金资助:

    Under the auspices of Commonwealth and Specialized Programs for Scientific Research, Ministry of Water Resources of China (No. 200901042)

Evaluating Functions of Reservoirs' Storage Capacities and Locations on Daily Peak Attenuation for Ganjiang River Basin Using Xinanjiang Model

DU Jinkang1,2, ZHENG Dapeng3, XU Youpeng1, HU Shunfu4, XU Chongyu5,6   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China;
    2. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China;
    3. Anhui Electric Power Design Institute of China Energy and Electricity Construction Group, Hefei 230601, China;
    4. Department of Geography, Southern Illinois University Edwardsville, Edwardsville IL 62026, USA;
    5. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;
    6. Department of Geosciences, University of Oslo, N-0316 Oslo 1047 Blindern, Norway
  • Received:2016-01-18 Revised:2016-05-02 Online:2016-12-27 Published:2016-11-05
  • Contact: XU Chongyu.E-mail:chongyu.xu@geo.uio.no E-mail:chongyu.xu@geo.uio.no
  • Supported by:

    Under the auspices of Commonwealth and Specialized Programs for Scientific Research, Ministry of Water Resources of China (No. 200901042)

摘要:

Flooding is the most prevalent and costly natural disaster in the world and building reservoirs is one of the major structural measures for flood control and management. In this paper, a framework was proposed to evaluate functions of reservoirs' locations and magnitudes on daily peak flow attenuation for a large basin of China, namely Ganjiang River Basin. In this study, the Xinanjiang model was adopted to simulate inflows of the reservoirs and flood hydrographs of all sub-catchments of the basin, and simple reservoir operation rules were established for calculating outflows of the reservoirs. Four reservoirs scenarios were established to analyze reservoirs' locations on daily peak flow attenuation. The results showed that:1) reservoirs attenuated the peak discharges for all simulated floods, when the flood storage capacities increase as new reservoirs were built, the peak discharge attenuation by reservoirs showed an increasing tendency both in absolute and relative measures; 2) reservoirs attenuated more peak discharge relatively for small floods than for large ones; 3) reservoirs reduced the peak discharge more efficiently for the floods with single peak or multi peaks with main peak occurred first; and 4) effect of upstream reservoirs on peak attenuation decreased from upper reaches to lower reaches; upstream and midstream reservoirs played important roles in decreasing peak discharge both at middle and lower reaches, and downstream reservoirs had less effect on large peak discharge attenuation at outlet of the basin. The proposed framework of evaluating functions of multiple reservoirs' storage capacities and locations on peak attenuation is valuable for flood control planning and management at basin scale.

关键词: reservoir, peak flow, Xinanjiang model, reservoir operation, Ganjiang River Basin

Abstract:

Flooding is the most prevalent and costly natural disaster in the world and building reservoirs is one of the major structural measures for flood control and management. In this paper, a framework was proposed to evaluate functions of reservoirs' locations and magnitudes on daily peak flow attenuation for a large basin of China, namely Ganjiang River Basin. In this study, the Xinanjiang model was adopted to simulate inflows of the reservoirs and flood hydrographs of all sub-catchments of the basin, and simple reservoir operation rules were established for calculating outflows of the reservoirs. Four reservoirs scenarios were established to analyze reservoirs' locations on daily peak flow attenuation. The results showed that:1) reservoirs attenuated the peak discharges for all simulated floods, when the flood storage capacities increase as new reservoirs were built, the peak discharge attenuation by reservoirs showed an increasing tendency both in absolute and relative measures; 2) reservoirs attenuated more peak discharge relatively for small floods than for large ones; 3) reservoirs reduced the peak discharge more efficiently for the floods with single peak or multi peaks with main peak occurred first; and 4) effect of upstream reservoirs on peak attenuation decreased from upper reaches to lower reaches; upstream and midstream reservoirs played important roles in decreasing peak discharge both at middle and lower reaches, and downstream reservoirs had less effect on large peak discharge attenuation at outlet of the basin. The proposed framework of evaluating functions of multiple reservoirs' storage capacities and locations on peak attenuation is valuable for flood control planning and management at basin scale.

Key words: reservoir, peak flow, Xinanjiang model, reservoir operation, Ganjiang River Basin