水利水电技术（中英文）2025，Vol.56Issue(3)：76-86,11.DOI:10.13928/j.cnki.wrahe.2025.03.006
典型城市河道生态修复需水阈值计算方法研究
Study on the calculation method of water demand threshold for ecological restoration of typical urban rivers
摘要
Abstract
[Objective]This study aims to investigate the role of sponge cities in mitigating urban waterlogging by selecting the Jincun development area of Jincheng City as a research area and analyzing the regulation effects of low impact development(LID)facilities on runoff and waterlogging at different spatial scales.[Methods]A coupled urban stormwater and waterlogging model was developed by integrating the Storm Water Management Model(SWMM)and the two-dimensional module of InfoWorks ICM.The model simulated various storm scenarios and LID layout schemes to analyze rainfall-runoff processes and waterlogging characteristics in plots,drainage zones,and regions.[Results]The findings indicated that LID facilities effectively reduced runoff peak values,decreased total runoff,accelerated runoff recession,and mitigated overflow nodes and overloaded pipe segments.They also significantly reduced areas affected by waterlogging and lowered water depths.The regulation effect of LID facilities showed minor variation across different spatial scales and performed well within a 1 to 5-year recurrence period.Specifically,under 1-year recurrence period rainfall,the largest LID layout scheme reduced surface runoff by more than 75％.[Conclusion]LID facilities demonstrate strong efficacy for short-recurrence-period storms but have limited capacity for long-recurrence-period waterlogging control,particularly at severe waterlogging points.Expanding the scale of LID facilities can substantially enhance their runoff regulation capacity.关键词
水生态环境/生态需水/城市河道/流量阈值/芦塘支渠/综合确定方法/径流/水资源Key words
water ecological environment/ecological water demand/urban rivers/flow threshold/Lutang Branch Canal/comprehensive determination method/runoff/water resources分类
水利科学引用本文复制引用
陈小娜,朱红生,假冬冬,费晓昕,王金洋..典型城市河道生态修复需水阈值计算方法研究[J].水利水电技术（中英文）,2025,56(3):76-86,11.基金项目
国家重点研发计划项目(2023YFC3209501) （2023YFC3209501）
国家自然科学基金项目(52079080,U2040215) （52079080,U2040215）
南京水利科学研究院研究生学位论文基金项目(Yy224009) （Yy224009）
