《都市水杂志》刊登“确定城市地区土地利用变化对水文影响的两个指标”

作者: Renee Gunn , Akilah Martin, Bernard Engel,Laurent Ahiblame

刊物：都市水杂志，2012年，9卷第4期，239-248页

关键词：无

摘  要：决策者需要简单的度量标准来量化由于城市化造成的土地利用变化所产生的水文影响。研究中发现并论证了计算土地利用变化对水文影响的两个指标。第一个指标中，发展前和发展后指标PPH，用来比较发展前和发展后2年一遇的24小时暴雨量和10年一遇的24小时暴雨量的集中时间、峰值径流以及平均年径流等水文参数。第二个指标中，最大程度指标EH，用来比较发展后潜在的最大与最小的水文参数。这个指标在印第安纳州拉斐特住宅区的三个研究案例中得到应用。这些案例研究阐述了如何理解这些指标值。以保护设计原则对果园细分，得分最好的两个指标可以单独使用，但是建议将其一起使用。

Development of two indices for determining hydrologic implications of land use changes in urban areas

Authors：Renee Gunn , Akilah Martin, Bernard Engel,Laurent Ahiblame

Journal: Urban Water Journal，Volume 9, Issue 4（2012），239-248

Key words: None

Abstract:Simple metrics are needed by decision makers to quantify hydrologic impacts of land uses as a result of urbanization. Two indices to evaluate hydrologic implications of land use changes were developed and demonstrated in case studies. The first index, pre-development versus post-development index (PPH), compares pre-development to post-development hydrologic conditions for time of concentration, peak runoff for a 2-year 24-hour storm and a 10-year 24-hour storm, and average annual runoff volume. The second, extent of maximum index (EH), compares post-development with potential minimum and maximum hydrologic conditions of a site. The indices were applied in three case studies of residential subdivisions in Lafayette, Indiana. These case studies illustrate how to interpret the resulting index values. The Orchards subdivision, which was designed with conservation principles, scored the best for both indices. Although the two indices can be used separately, it is advised to use them together.

原文链接：http://www.tandfonline.com/doi/full/10.1080/1573062X.2012.660957