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Measuring performance of low impact development practices for the surface runoff management

Environmental Science and Ecotechnology 2020年第1期1卷 74-82页

作者： Wenyu Yang Kurt Bruggemann Kiwanuka David Seguya Ehtesham Ahmed Thomas Kaeseberg Heng Dai Pei Hua Jin Zhang Peter Krebs Brandenburgische Technische Universitat 03046CottbusGermany Institute of Urban and Industrial Water Management Technische Universitat Dresden01062DresdenGermany Institute for Integrated Management of Material Fluxes and of Resources United Nations University01067DresdenGermany zweckverband wasserversorgung meißner hochland 01683NossenGermany Institute of Groundwater and Earth Sciences Jinan University510632GuangzhouChina SCNU Environmental Research Institute Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental SafetyMOE Key Laboratory of Theoretical Chemistry of EnvironmentSouth China Normal University510006GuangzhouChina School of Environment South China Normal UniversityUniversity TownGuangzhou510006China

Continuous urbanization over the last few years has led to the increase in impervious surfaces and stormwater *** Impact Development(LID)is currently receiving increased attention as a promising strategy for surface runoff *** analyze the performance of LID practices for surface runoff management,a longterm hydrological modeling from 2001 to 2015 along with a cost-effectiveness analysis were carried out on a campus in Dresden,*** LID practices and six precipitation scenarios were designed and simulated in a Storm Water Management Model(SWMM).A cost-effectiveness analysis was conducted by calculating the lifecycle costs and runoff removal rate of LID *** demonstrated that the LID practices significantly contributed to surface runoff mitigation in the study *** LID performance was primarily affected by the length of the precipitation scenarios and LID implementing *** runoff removal rate of the LID practices fluctuated significantly when the rainfall scenario was shorter than 12 *** the rainfall scenario exceeded 1 year the effects on the runoff removal rate was *** combination of an infiltration trench,permeable pavement,and rain barrel(IT+PP+RB),was the best runoff control capacity with a removal rate ranging from 23.2% to 27.4%.Whereas,the rain barrel was the most cost-effective LID option with a costeffectiveness(C/E)ratio ranged from 0.34 to *** modeling method was improved in this study by conducting long-term hydrological simulations with different durations rather than short-term simulations with single *** general,the methods and results of this study provided additional improvements and guidance for decision-making process regarding the implementation of appropriate LID practices.

关键词： Low impact development Stormwater management model Cost-effectiveness analysis Decision-making process

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