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DOI | 10.1016/j.scitotenv.2019.03.212 |
Evaluating natural infrastructure for flood management within the watersheds of selected global cities | |
Gunnell, Kelly1; Mulligan, Mark1; Francis, Robert A.1; Hole, David G.2,3 | |
发表日期 | 2019 |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
卷号 | 670页码:411-424 |
英文摘要 | Cities are dependent on their upstream watersheds for storage and gradual release of water into river systems. These watersheds act as important flood mitigation infrastructure, providing an essential ecosystem service. In this paper we use metrics from the WaterWorld model to examine the flood management-relevant natural infrastructure of the upstream watersheds of selected global cities. These metrics enable the characterisation of different types, magnitudes and geographical distributions of potential natural flood storage. The storages are categorised as either green (forest canopy, wetland and soil) or blue (water body and floodplain) storages and the proportion of green to blue indicates how different city upstream basin contexts provide different types and levels of storage which may buffer flood risk. We apply the WaterWorld method for examining flood risk as the ratio of accumulated modelled annual runoff volume to accumulated available green and blue water storage capacity. The aim of these metrics is to highlight areas where there is more runoff than storage capacity and thus where the maintenance or restoration of further natural infrastructure (such as canopy cover, wetlands and soil) could aid in storing more water and thus better alleviate flood risks. Such information is needed by urban planners. city authorities and governments to help prepare cities for climate change impacts. (C) 2019 The Authors. Published by Elsevier B.V. |
WOS研究方向 | Environmental Sciences & Ecology |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/99253 |
作者单位 | 1.Kings Coll London, Dept Geog, London WC2B 4BG, England; 2.Conservat Int, 2011 Crystal Dr,Suite 500, Arlington, VA 22202 USA; 3.Arizona State Univ, Ctr Biodivers Outcomes, Tempe, AZ 85281 USA |
推荐引用方式 GB/T 7714 | Gunnell, Kelly,Mulligan, Mark,Francis, Robert A.,et al. Evaluating natural infrastructure for flood management within the watersheds of selected global cities[J],2019,670:411-424. |
APA | Gunnell, Kelly,Mulligan, Mark,Francis, Robert A.,&Hole, David G..(2019).Evaluating natural infrastructure for flood management within the watersheds of selected global cities.SCIENCE OF THE TOTAL ENVIRONMENT,670,411-424. |
MLA | Gunnell, Kelly,et al."Evaluating natural infrastructure for flood management within the watersheds of selected global cities".SCIENCE OF THE TOTAL ENVIRONMENT 670(2019):411-424. |
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