首页|Stormwater management model based cost-benefit analysis of integrated grey-green infrastructure scenarios

Stormwater management model based cost-benefit analysis of integrated grey-green infrastructure scenarios

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  • NETL
  • NSTL
  • Higher Education Press
This study promotes the integration of ecological green infrastructure with traditional gray infrastructure to tackle urban water management challenges and safety issues. Using the Storm Water Management Model (SWMM), we simulated runoff control in Beijing Tongzhou District Sponge City Pilot Area across 15 gray-green infrastructure scenarios and identified the optimal strategy through a cost-benefit analysis focusing on scenarios that meet runoff control standards. A cost-benefit evaluation framework was developed for gray-green infrastructure projects, employing payback period and net present value methods to assess cost-effectiveness. Findings revealed notable operational benefits, particularly in temperature and humidity regulation, which accounted for 88% of the total benefits. A standout scenario with a rapid payback period of 7.16 years and a net benefit of 1957.7 million yuan was highlighted. The research provides a holistic assessment, integrating environmental, ecological, and economic aspects of gray-green infrastructure, offering insights for effective green infrastructure deployment and evaluation in sponge city construction.

Green infrastructureLife cycle assessmentStormwater management modelCost-benefit analysisSponge city

Changqing Xu、Jingran Huang、Yinxiao Xiao、Tianyu Jia、Yifei Zhu、Xinfei Li、Haifeng Jia

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School of Economics, Beijing Institute of Technology, Beijing 100081, China||Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing 100875, China

School of Economics, Beijing Institute of Technology, Beijing 100081, China

School of Environment, Tsinghua University, Beijing 100084, China

Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China

School of Environment, Tsinghua University, Beijing 100084, China||Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China

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2025

10.1007/s11783-025-1982-y

Frontiers of environmental science & engineering

Frontiers of environmental science & engineering

ISSN：2095-2201
年,卷(期)：2025.19(5)
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