Assessing and restoring the resilience of urban stream networks

建议的研究是出于决策过程中所面临的战略合作伙伴在城市河流网络管理的不确定性。基本问题是，城市化增加了地表径流量和洪水期间最大流量的幅度。这些水必须通过在更温和的流动状态下形成的河流网络来输送。广泛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、娱乐和教育机会，导致所谓的“城市溪流综合症”。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，尽管成本高昂，但它们往往无法达到预期效果，气候变化也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.