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Urban, Community and Regional Planning
Drainage design; community planning; ecological planning; Ian McHarg; multifunctional landscapes; landscape performance; GIS
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Green Infrastructure Design For Stormwater Runoff And Water Quality: Empirical Evidence From Large Watershed-Scale Community Developments, Bo Yang, Shujuan Li
Green Infrastructure Design For Stormwater Runoff And Water Quality: Empirical Evidence From Large Watershed-Scale Community Developments, Bo Yang, Shujuan Li
Bo Yang
Green infrastructure (GI) design is advocated as a new paradigm for stormwater management, whereas current knowledge of GI design is mostly based on isolated design strategies used at small-scale sites. This study presents empirical findings from two watershed-scale community projects (89.4 km2 and 55.7 km2) in suburban Houston, Texas. The GI development integrates a suite of on-site, infiltration-based stormwater management designs, and an adjacent community development follows conventional drainage design. Parcel data were used to estimate the site impervious cover area. Observed streamflow and water quality data (i.e., NO3-N, NH3-N, and TP) were correlated with the site imperviousness. Results show …