Assessing and restoring the resilience of urban stream networks

提出这项研究的动机是城市河流网络管理中的战略合作伙伴在决策过程中面临的不确定性。基本问题是，城市化增加了地表径流量和洪灾期间的洪峰流量。这些水必须通过在更为温和的水流条件下形成的河流网络进行输送。大范围的物质退化和生态系统服务的丧失，如清洁的空气和水、美学以及娱乐和教育机会，导致了所谓的“城市河流综合症”。雨水管理和溪流恢复是解决这一问题的两种可用但有限的技术，但它们往往不能如预期那样发挥作用，尽管成本高昂，气候变化构成了重大的额外威胁。

The proposed research is motivated by the uncertainty in decision making processes faced by strategic partners in the management of urban stream networks. The basic problem is that urbanization increases the volume of surface runoff and the magnitude of peak discharges during floods. This water must be routed through stream networks that developed under much more moderate flow regimes. Widespread physical degradation and loss of ecosystem services such as clean air and water, aesthetics, and recreational and educational opportunities lead to what is called the "urban stream syndrome". Stormwater management and stream restoration are two available but limited techniques for the issue, but they often do not work as intended despite significant costs, and climate change poses a significant additional threat.