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Chinese Journal of Applied Ecology ›› 2017, Vol. 28 ›› Issue (8): 2405-2412.doi: 10.13287/j.1001-9332.201708.002

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Simulation on the control effect of low impact development measures of sponge city based on storm water management model (SWMM)

LI Chun-lin1, LIU Miao1*, HU Yuan-man1, SUI Jin-ling1,2, WU Yi-lin1,3, LIU Chong1, SUN Feng-yun4   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
    3Shandong Normal University, Ji’nan 250358, China
    4Shanghai Key Laboratory of Urbanization and Ecological Restoration/School of Geography Science, East China Normal University, Shanghai 200062, China
  • Received:2016-10-31 Published:2017-08-18
  • Contact: * E-mail: lium@iae.ac.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (41501198, 41671184, 41671185), the National Science and Technology Major Project (2015ZX07202012) and the Open Research Fund Program of Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration

Abstract: In order to solve the problems of water ecology, water security and water environment in the process of urbanization, sponge city, the new urban storm water management concept, was put forward based on the low impact development (LID). The Chicago rain type formula and Shenyang rainfall intensity formula were used to form Shenyang rainfall process line of different return periods. The water quantity and quality processes of the three scenarios, before urbanization, after urbanization and after setting LID measures, were simulated and analyzed by storm water management model (SWMM). The results showed that with the increase of rainfall return period, the reduced runoff volume of LID measures was gradually increased, and the runoff volume was close to that before urbanization. LID measures removed lots of TSS and COD, but their emissions were still higher than that before urbanization, while that of TN and TP were close to that before urbanization. With the increase of the rainfall intensity, the runoff velocity increased, but the removal of TSS, TP and COD by LID measures decreased gradually.