College of Architecture and Urban Planning, Guangzhou University, Guangzhou, 510006, China.
College of Architecture and Urban Planning, Guangzhou University, Guangzhou, 510006, China; School of Architecture, Southeast University, Nanjing, 210096, China.
J Environ Manage. 2020 Jun 15;264:110483. doi: 10.1016/j.jenvman.2020.110483. Epub 2020 Mar 31.
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.
采用代表性浓度途径（RCP），针对可能的气候变化影响，以公顷为单位对低影响开发（LID）措施的成本效益进行了调查。选择广州的一个 LID 项目来说明替代源控制策略在各种未来气候模型和情景下的水文性能变化。在 RCP8.5 中，较短持续时间的频繁风暴导致水文性能更剧烈波动。在气候情景下，LID 措施对减少测试流域径流量和峰值流量的水文性能不同。基于 LID 替代方案的生命周期成本和环境影响的限制，综合策略被发现可有效管理源头的地表径流，以适应气候变化的影响。本文所述方法可用于考虑在有限预算下进行关键源管理的 LID 措施，并考虑长期气候变化下的环境影响。
