灌溉排水学报2026，Vol.45Issue(4)：98-107,10.DOI:10.13522/j.cnki.ggps.2025218
不同降雨情景下LID雨洪调控措施效果模拟评估
Simulation and evaluation of low-impact development stormwater control under varying rainfall scenarios
摘要
Abstract
[Objective]With rapid urbanization increasing stormwater runoff and flood risk,low impact development(LID)measures have become an effective approach for urban stormwater management.This paper investigates the impact of various rainfall scenarios on the stormwater control efficiency of LID facilities.[Method]The study was based on the storm water management model(SWMM)and the Chicago storm hyetograph.Taking the Dakeng River Basin in Guangzhou as the study area,we investigated and compared the efficiency of four types of LID facilities:sunken green spaces,rain gardens,green roofs,and permeable pavements,in controlling runoff for the same renovation area under six return periods:1,2,5,10,20 and 50 years.[Result]①As the return period increases,the overall control efficiency of all LID types decreased,suggesting the limited buffering capacity of LID facilities against extreme rainfall events.②The control efficiency of the LID types was ranked as follows:rain garden ≈ permeable pavement＞LID2＞LID1＞sunken green space＞green roof.Rain gardens and permeable pavements were most effective in reducing total runoff,while the combined schemes excelled in optimizing the temporal distribution of runoff.③Earlier rainfall peaks amplified the rapid rise and slow recession of runoff,increasing the difficulty of peak flow control and reducing the overall stormwater control efficiency.[Conclusion]Both rainfall return period and peak characteristics significantly influenced the stormwater control efficiency of LID facilities.Among the 6 types of LID facilities we compared,rain gardens and permeable pavements were most effective in reducing total runoff,whereas the combined schemes were superior in optimizing temporal runoff distribution.These findings provide valuable guidance for the design and optimization of urban stormwater management systems.关键词
SWMM模型/低影响开发/雨洪控制效果/雨峰系数Key words
SWMM model/low impact development/stormwater control efficiency/rainfall peak coefficient分类
农业科技引用本文复制引用
韦骏成,葛阳,位帅,康政,付铁文,刘智勇..不同降雨情景下LID雨洪调控措施效果模拟评估[J].灌溉排水学报,2026,45(4):98-107,10.基金项目
国家自然科学基金项目(52179031) （52179031）
广东省杰出青年基金项目(2023B1515020116) （2023B1515020116）
珠江人才计划团队项目(2019ZT08G090) （2019ZT08G090）
中国电力建设集团重点科技研发项目(DJ-ZDXM-2023-39) （DJ-ZDXM-2023-39）
