Sediment Pollution Assessment of Abandoned Residential Developments Using Remote Sensing and GIS

J.D.WERTS; E.A.MIKHAILOVA; C.J.POST; J.L.SHARP

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Sediment Pollution Assessment of Abandoned Residential Developments Using Remote Sensing and GIS

机译：基于遥感和GIS的废弃住宅开发区泥沙污染评估

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The current economic crisis has left numerous residential developments in the southeastern United States in various stages of construction.Many of them are currently graded and essentially abandoned,creating a major source of sediment runoff to waterways.Residential development locations with significant bare soil areas were identified through classification of Landsat 5 TM satellite imagery and subsequently verified from high-resolution county aerial photographs.The revised universal soil loss equation (RUSLE) was used in a geographic information system (GIS) as a tool for prioritizing identified locations on the basis of potential soil loss assuming the worst case scenario of a completely unmaintained site.Initial GIS identification indicated 301 sites with a total bare soil area of 2 378 ha over three counties in Upstate South Carolina.A random sample of 153 sites was visited over 17 days and assessed using a mobile GIS,global positioning system (GPS),and digital camera for field validation.Results indicated that 78％ (119) of the sites were classified correctly (residential construction sites in varying stages of completion); 88％ of identified areas were less than 25％ built compared to the previous year; 48％ were categorized as moderate to severe problems.Abandoned and unfinished developments in Upstate South Carolina may represent a major source of sediment pollution to streams.Well-maintained erosion control devices may be useful in preventing offsite sedimentation.

机译：当前的经济危机使美国东南部的许多住宅开发处于不同的建设阶段，其中许多目前已被分级并基本上被废弃，从而形成了通往水道的泥沙径流的主要来源，并确定了具有大量裸露土壤区域的住宅开发地点通过对Landsat 5 TM卫星图像的分类，并随后从高分辨率的县级航空照片中进行验证。修订后的通用土壤流失方程（RUSLE）被用于地理信息系统（GIS）中，作为根据潜力对已确定位置进行优先排序的工具假设最坏的情况是完全未维护的土壤流失，首先进行GIS识别，发现南卡罗来纳州北部三个县的301个土壤总裸土面积为2378公顷，在17天之内随机访问了153个站点并进行评估使用移动GIS，全球定位系统（GPS）和数码相机进行视场结果表明，正确划分了78％（119）个场所（住宅建筑工地处于不同竣工阶段）;与去年相比，确定区域的88％不到建筑面积的25％; 48％被归类为中度到严重问题。南卡罗来纳州北部地区废弃的和未完成的开发工程可能是河流沉积物污染的主要来源。维护良好的侵蚀控制装置可能有助于防止异地沉积。

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《土壤圈（英文版）》 |2013年第1期|39-47|共9页
作者
J.D.WERTS; E.A.MIKHAILOVA; C.J.POST; J.L.SHARP;
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Department of Forestry and Natural Resources, Clemson University, 261 Lehotsky Hall, Clemson, SC 29634,USA;

Department of Forestry and Natural Resources, Clemson University, 261 Lehotsky Hall, Clemson, SC 29634,USA;

Department of Forestry and Natural Resources, Clemson University, 261 Lehotsky Hall, Clemson, SC 29634,USA;

Department of Mathematical Sciences, Clemson University, 234 Barre Hall, Clemson, SC 29634,USA;

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Sediment Pollution Assessment of Abandoned Residential Developments Using Remote Sensing and GIS

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