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首页> 外文期刊>Journal of the American Water Resources Association >HYDROLOGIC IMPACT ASSESSMENT OF LAND COVER CHANGE AND STORMWATER MANAGEMENT USING THE HYDROLOGIC FOOTPRINT RESIDENCE
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HYDROLOGIC IMPACT ASSESSMENT OF LAND COVER CHANGE AND STORMWATER MANAGEMENT USING THE HYDROLOGIC FOOTPRINT RESIDENCE

机译：基于水足迹的土地覆盖变化水文影响评估与暴雨管理

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摘要

Urbanization impacts the stormwater regime through increased runoff volumes and velocities. Detention ponds and low impact development (LID) strategies may be implemented to control stormwater runoff. Typically, mitigation strategies are designed to maintain postdevelopment peak flows at predevelopment levels for a set of design storms. Peak flow does not capture the extent of changes to the hydrologic flow regime, and the hydrologic footprint residence (HFR) was developed to calculate the area and duration of inundated land during a storm. This study couples a cellular automata land cover change model with a hydrologic and hydraulic framework to generate spatial projections of future development on the fringe of a rapidly urbanizing metropolitan area. The hydrologic flow regime is characterized for existing and projected land cover patterns under detention pond and LID-based control, using the HFR and peak flow values. Results demonstrate that for less intense and frequent rainfall events, LID solutions are better with respect to HFR; for larger storms, detention pond strategies perform better with respect to HFR and peak flow.
机译：城市化通过增加径流量和流速影响雨水状况。可以实施蓄水池和低影响发展（LID）策略来控制雨水径流。通常，缓解策略旨在将一系列设计风暴的开发后峰值流量保持在开发前水平。高峰流量无法捕捉到水文流态变化的程度，因此开发了水文足迹驻留（HFR）来计算暴风雨期间被淹没土地的面积和持续时间。这项研究将蜂窝自动机土地覆盖变化模型与水文和水力框架相结合，以在迅速城市化的大都市边缘产生未来发展的空间预测。利用HFR和峰值流量值，对滞留池和基于LID的控制下现有和预计的土地覆盖模式进行了水文流态分析。结果表明，对于强度较低，频率较低的降雨事件，LID解决方案相对于HFR更好。对于较大的风暴，滞留池策略在HFR和峰值流量方面表现更好。

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