Green infrastructure: The future of urban flood risk management?
Green infrastructure: The future of urban flood risk management?
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DOI：
10.1002/wat2.1560
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发表时间：
2021-09-27
影响因子：
8.2
通讯作者：
Boothroyd, Richard J.
中科院分区：
文献类型：
--
作者：
Green, Daniel;O'Donnell, Emily;Boothroyd, Richard J.
城市洪水是一个关键的全球性挑战，由于越来越多的城市景观上的更强的降雨和山洪径流制度，预计将在全球变化下变得更加严重。因此，许多城市正在重新思考他们的洪水风险管理方法，使用绿色基础设施（GI）解决方案来扭转硬工程洪水管理方法的遗产。GI的目的是减弱、恢复和重建更自然的洪水响应，使水文响应更接近城市化前的条件。然而，地理信息系统的有效性往往难以确定，并取决于风暴事件的规模和地理信息系统基础设施的空间规模。没有对GI计划的成功和失败进行常规监测。因此，很难确定GI是否为管理城市洪水提供了可持续的解决方案。本文提供了一个国际视角，目前使用地理信息系统的城市防洪减灾和解决方案，它提供了在当前和未来的挑战。越来越多的文献进一步表明，地理信息系统可以与灰色基础设施一起优化，以提供一个整体解决方案，为环境和社会带来多种共同利益，同时提高洪水恢复力。如果要以一种面向未来的方式管理城市洪水风险，地理信息系统必须与现有的和升级的灰色基础设施协同工作。在这里，我们讨论了一系列必须克服的优先事项和挑战，以便将GI整合到现有的雨水管理框架中，从而有效地管理洪水风险。本文分类为：工程水>可持续水工程水>规划水科学>极端水
Urban flooding is a key global challenge which is expected to become exacerbated under global change due to more intense rainfall and flashier runoff regimes over increasingly urban landscapes. Consequently, many cities are rethinking their approach to flood risk management by using green infrastructure (GI) solutions to reverse the legacy of hard engineering flood management approaches. The aim of GI is to attenuate, restore, and recreate a more natural flood response, bringing hydrological responses closer to pre-urbanized conditions. However, GI effectiveness is often difficult to determine, and depends on both the magnitude of storm events and the spatial scale of GI infrastructure. Monitoring of the successes and failures of GI schemes is not routinely conducted. Thus, it can be difficult to determine whether GI provides a sustainable solution to manage urban flooding. This article provides an international perspective on the current use of GI for urban flood mitigation and the solutions it offers in light of current and future challenges. An increasing body of literature further suggests that GI can be optimized alongside gray infrastructure to provide a holistic solution that delivers multiple co-benefits to the environment and society, while increasing flood resilience. GI will have to work synergistically with existing and upgraded gray infrastructure if urban flood risk is to be managed in a futureproof manner. Here, we discuss a series of priorities and challenges that must be overcome to enable integration of GI into existing stormwater management frameworks that effectively manage flood risk.This article is categorized under:Engineering Water > Sustainable Engineering of WaterEngineering Water > Planning WaterScience of Water > Water Extremes