Climate Change Data Portal
DOI | 10.1175/EI-D-17-0015.1 |
Simulated Sensitivity of Urban Green Infrastructure Practices to Climate Change | |
Sarkar, Saumya1; Butcher, Jonathan B.1; Johnson, Thomas E.2; Clark, Christopher M.2 | |
发表日期 | 2018-06-01 |
ISSN | 1087-3562 |
卷号 | 22期号:13页码:1-37 |
英文摘要 | Climate change is likely to alter the quantity and quality of urban stormwater, presenting a risk to water quality and public health. How might stormwater management practices need to change to address future climate? Answering requires understanding how management practices respond to climate forcing. Traditional gray stormwater design employs engineered structures, sized based on assumptions about future rainfall, which have limited flexibility once built. Green infrastructure (GI) uses vegetation, soil, and distributed structures to manage rainwater where it falls and may provide greater flexibility for adaptation. There is, however, uncertainty about how a warmer climate may affect performance of different types of GI. This study uses the hydrologic and biogeochemical watershed model, Regional Hydro-Ecologic Simulation System (RHESSys), to investigate sensitivity of different GI practices to climate. Simulations examine 36 urban archetypes representing different development patterns (at the city block scale) of typical U.S. cities, 11 regional climatic settings, and a range of mid-twenty-first-century scenarios based on downscaled climate model output. Results suggest regionally variable effects of climate change on the performance of GI practices for water quantity, water quality, and carbon sequestration. GI is able to mitigate most projected future increases in surface runoff, while bioretention can mitigate increased nitrogen yield at nine of 11 sites. Simulated changes in carbon balance are small, while local evaporative cooling can be substantial. Given uncertainty in the local expression of future climate, infrastructure design should emphasize flexibility and robustness to a range of future conditions. |
英文关键词 | Climate models;Hydrologic models;Planning |
语种 | 英语 |
WOS记录号 | WOS:000434934200001 |
来源期刊 | EARTH INTERACTIONS |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/57079 |
作者单位 | 1.Tetra Tech Inc, Res Triangle Pk, NC 27709 USA; 2.US EPA, Off Res & Dev, Washington, DC 20460 USA |
推荐引用方式 GB/T 7714 | Sarkar, Saumya,Butcher, Jonathan B.,Johnson, Thomas E.,et al. Simulated Sensitivity of Urban Green Infrastructure Practices to Climate Change[J]. 美国环保署,2018,22(13):1-37. |
APA | Sarkar, Saumya,Butcher, Jonathan B.,Johnson, Thomas E.,&Clark, Christopher M..(2018).Simulated Sensitivity of Urban Green Infrastructure Practices to Climate Change.EARTH INTERACTIONS,22(13),1-37. |
MLA | Sarkar, Saumya,et al."Simulated Sensitivity of Urban Green Infrastructure Practices to Climate Change".EARTH INTERACTIONS 22.13(2018):1-37. |
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