Study on Hydrological Effect of Typical Community Sponge Transformation based on PCSWMM in Guangzhou
Huang Guoru
Mai Yepeng
Li Biqi
Zeng Jiajun
Wu Haichun
Zhang Mingzhu
Abstract：With the acceleration of urbanization and the continuous advancement of the construction of the sponge City, the Low Impact Development (LID) measures have been attached great importance to the urban construction. In order to evaluate the effect of LID measures, the PCSWMM model was constructed to simulate the hydrological effects of the LID facility at the 0.5,1,2,5,10 and 20 year design rainfall scenarios in the research area. The results show that different combinations of LID measures, such as concave green space, green roof and permeable pavement, have different degrees of reduction in runoff and pollutants. The reduction effect decreases while rainfall return period increases. The best results can be achieved by the combination of sunken green space, green roof and permeable pavement at the same time. The maximum reductions rate of runoff, BOD5, CODCr, TSS, NH3-N, TN and TP were 64.77%, 56.93%, 57.44%, 51.20%, 51.91%, 55.29% and 71.37% respectively.
Keywords：LID measurePCSWMM modelrunoffpolutant loadreduction rate
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 38-45 )