Cost-benefit analysis of low-impact development at hectare scale for urban stormwater source control in response to anticipated climatic change.,Journal of Environmental Management

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Cost-benefit analysis of low-impact development at hectare scale for urban stormwater source control in response to anticipated climatic change.
Journal of Environmental Management ( IF 8.0 ) Pub Date : 2020-03-31 , DOI: 10.1016/j.jenvman.2020.110483
Zhilin Wang ₁ , Shiqi Zhou ₁ , Mo Wang ₂ , Dongqing Zhang ₃

Affiliation

Investigation of the cost-effectiveness of low-impact development (LID) practices at the hectare scale in response to impacts of possible climate change was conducted using representative concentration pathways (RCPs). An LID project in Guangzhou has been selected to illustrate changes in the hydrologic performance for alternative source control strategies for a variety of future climate models and scenarios. Frequent storms of shorter duration in RCP 8.5 cause more dramatic fluctuation of hydrologic performance. Hydrologic performance of LID practices on reducing runoff volume and peak flow in test catchment are different in climate scenarios. Based on the constraints of life cycle costs and environmental impacts of LID alternatives, comprehensive strategies were found effective in managing surface runoff at the source to adapt to the influence of climate change. The methodology described herein could be useful in considering LID practices for critical source management with limited budgets and considering environmental impacts under long-term climate change.

中文翻译：

针对预期的气候变化对城市雨水源控制的公顷规模低影响开发的成本效益分析。

使用代表性的集中途径（RCP）对公顷规模的低影响发展（LID）实践的成本效益进行了调查，以应对可能的气候变化的影响。已选择广州的一个LID项目来说明水文性能的变化，以用于各种未来气候模型和情景的替代性水源控制策略。RCP 8.5中持续时间较短的频繁风暴导致水文性能出现更大幅度的波动。在气候情景中，LID做法在减少汇水量和峰值流量方面的水文性能有所不同。根据生命周期成本的约束和LID替代品对环境的影响，已发现综合策略可有效地从源头管理地表径流，以适应气候变化的影响。本文所述的方法在考虑预算有限的关键源管理的LID做法以及考虑长期气候变化下的环境影响时可能很有用。

更新日期：2020-03-31

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