海绵城市源头设施生命周期评价研究进展

Research progress on life cycle assessment of sponge city source control facilities

建设海绵城市源头设施作为城市降雨径流控制的有效举措,受到世界各国的广泛关注。基于生命周期视角量化分析海绵城市源头设施建设和运行过程中的环境、经济影响与效益,可为海绵城市建设提供科学、全面的依据。采用内容分析法,综述分析了当前世界各国关于源头设施生命周期环境与经济效益的研究。研究结果表明,源头设施建设阶段会产生较高的环境影响及经济成本,但运行阶段会产生较大的环境与经济效益。当前研究存在的不足之处主要包括环境影响类别和设施种类单一、研究范围比较小及对环境与经济综合影响研究较少。最后,提出了海绵城市源头设施今后的研究方向,研究结果可为未来海绵城市量化研究提供一定的参考。

As effective measures to control urban runoff,sponge city source control facilities gain more and more attention worldwide.Quantitatively evaluating the environmental and economic impact and benefit based on the life cycle perspective can provide scientific and comprehensive information for future sponge city construction.Based on the content analysis method,the current researches on life cycle environmental and economic analysis of source control facilities in various countries are summarized and analyzed.Results show that the environmental impacts and economic cost are higher in the construction stage of source control facilities,while greater environmental and economic benefits are generated in the operation stage.The shortcomings of the current research mainly include the single type of environmental impact and the type of facilities,the relatively small scope and the few studies on the comprehensive impact of environment and economy.Finally,the future research direction of sponge city source control facilities is proposed,and the research results can provide useful information for future sponge city related research.