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impact of low-impact development Technologies from an Ecological Perspective in Different Residential Zones of the City of Atlanta, Georgia

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Engineering 2018年第2期4卷 30-35页

作者： Zackery B. Morris Stephen M. Malone Abigail R. Cohen Marc J. Weissburg Bert Bras George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332-0405 USA School of Biological Sciences Georgia Institute of Technology Atlanta GA 30332 USA

low-impact development （LID） technologies have a great potential to reduce water usage and stormwa- ter runoff and are therefore seen as sustainable improvements that can be made to traditional water infrastructure, These technologies include bioretention areas, rainwater capturing, and xeriscaping, all of which can be used in residential zones, Within the City of Atlanta, residential water usage accounts for 53% of the total water consumption; therefore, residential zones offer significant impact potential for the implementation of LID, This study analyzes the use of LID strategies within the different residen- tial zones of the City of Atlanta from an ecological perspective by drawing analogies to natural ecosys- tems, The analysis shows that these technologies, especially with the addition of a graywater system, work to improve the conventional residential water network based upon these ecological metrics, The higher metric values suggest greater parity with healthy, natural ecosystems.

关键词： low-impact development Ecological network analysis Residential water consumption

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A GIS-Based Evaluation of Environmental Sensitivity for an Urban Expressway in Shenzhen, China

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Engineering 2018年第2期4卷 66-70页

作者： Qian Li Fengqing Guo Yuntao Guan State Environmental Protection Key Laboratory of Microorganism Application and Risk Control School of Environment Ysinghua University Beijing 100084 China Guangdong Provincial Engineering Technology Research Center for Urban Water Cycle and Water Environment Safety Graduate School at Shenzhen Ysinghua University Shenzhen 518055 China College of Water Conservancy Engineering Yianjin Agricultural University Yianjin 300384 China

Urban eco-environmental degradation is becoming inevitable due to the extensive urbanization, popula- tion growth, and socioeconomic development in China. One of the traffic arteries in Shenzhen is an urban expressway that is under construction and that runs across environmentally sensitive areas （ESAs）. The environmental pollution from urban expressways is critical, due to the characteristics of expressways such as high runoff coefficients, considerable contaminant accumulation, and complex pollutant ingredi- ents. ESAs are vulnerable to anthropogenic disturbances and hence should be given special attention. In order to evaluate the environmental sensitivity along this urban expressway and minimize the influences of the ongoing road construction and future operation on the surrounding ecosystem, the environmental sensitivity of the relevant area was evaluated based on the application of a geographic information sys- tem （GIS）. A final ESA map was classified into four environmental sensitivity levels; this classification indicates that a large proportion of the expressway passes through areas of high sensitivity, representing 11.93 km or 52.3% of the total expressway, and more than 90% of the total expressway passes through ESAs. This study provides beneficial information for optimal layout schemes of initial rainfall runofftreatment facilities developed from low-impact development （LID） techniques in order to minimize the impact of polluted road runoff on the surrounding ecological environment.

关键词： Environmentally sensitive areas Urban expressway Geographic information system low-impact development

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STORM WATER BEST MANAGEMENT PRACTICES THAT MAXIMIZE AQUIFER RECHARGE

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Journal of Green Building 2008年第1期3卷 126-138页

作者： Rebecca A.Larson Steven I.Safferman Biosystems and Agricultural Engineering Michigan State University Biosystems and Agricultural Engineering Michigan State UniversityPhone:517-432-0812

This article reviews and provides evaluation guidelines for six major storm water best management practices includingbioretention areas, grassed swales/fi lter strips, infi ltration trenches, porous pavement, rain barrels and wet detentionponds. A detailed table allows for quick and easy design comparisons, including a separate table which allows forsite specifi c cost comparisons. A logic diagram is provided as a basic tool for screening the most feasible managementpractice.

关键词： storm water best management practices runoff pollutant removal infi ltration biological uptake ground water recharge low-impact development

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