4.7 Article

Low impact development practices mitigate urban flooding and non-point pollution under climate change

期刊

JOURNAL OF CLEANER PRODUCTION
卷 347, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2022.131320

关键词

Low impact development; General circulation model; Climate change; Urban flooding; Stormwater management; Water quality modeling

资金

  1. National Natural Science Foundation of China [42077156]
  2. Guangdong Basic and Applied Basic Research Foundation [2020A1515011130]
  3. Bundesministerium fur Bildung und Forschung [03G0852A]
  4. Deutscher Akademischer Austauschdienst [PROBRAL57273574]
  5. Chinese Scholarship Council [202008080005]

向作者/读者索取更多资源

This study analyzed the performance of low impact development (LID) under climate change for stormwater management. Results showed that LID practices can mitigate the impact of runoff volume, peak flow, and non-point pollution. Scenario analysis indicated a decline in LID hydraulic performance, while water quality performance varied among different climate patterns. Uncertainty analysis revealed wide-range uncertainties in LID performance due to climate change, with water quality performance being more uncertain than hydraulic performance. Spatial analysis showed spatial heterogeneity in LID performance under climate change. Sensitivity analysis suggested that climate change has a stronger impact on the short-term performance of LID practices.
Climate change-induced extreme rainfall events exacerbate the failure in stormwater hydraulic and water quality management. As a promising alternative for stormwater management, the low impact development (LID) performance under the impact of climate change was analyzed in this study. The hydraulic and water quality models were integrated and the hydrological inputs were derived from downscaled general circulation model (GCM) projections. Results demonstrated that the LID practices in the given areas mitigated runoff volume, peak flow, and non-point pollution by 45-80%, 39-60%, and 31-82%, respectively. Scenario analysis showed that the LID hydraulic performance declined under all three future climate scenarios (RCP 2.6, RCP 4.5, and RCP 8.5), while the LID water quality performance fluctuated among different climate patterns. Uncertainty analysis suggested that the climate change caused wide-range uncertainties on LID performance, the uncertainty of LID water quality performance was larger than that of LID hydraulic performance. Spatial analysis indicated that the LID performance was spatially heterogeneous under climate change, and the heterogeneity was related to the land cover distribution of the given area. In addition, sensitivity analysis suggested that the impact of climate change on the short-term performance of LID practices was stronger than that on the long-term performance. Accordingly, the methods and findings provided herein could assist sustainable urban water management by investigating the LID performance under climate change.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据