wetland to nlcd impervious surface
收藏US Fish and Wildlife Service Open Data2026-03-28 收录
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https://gis-fws.opendata.arcgis.com/datasets/fws::wetland-to-nlcd-impervious-surface
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资源简介：
<span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'><b>Wetland to Impervious Surface Difference Product for US Census Tracts in the contiguous U.S. </b></span><div><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'><br /></span></div><div><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'>Census tracts with ≤0.5% of wetland to impervious surface difference, calculated by area, are displayed in light orange, while those that have greater than 0.5% difference are displayed in dark orange. <i>The </i></span><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'><i>≤0.05% category is filtered out in many web maps to improve performance. </i></span></div><div><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'><br /></span></div><div><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'>Patterns are largely controlled by the age of National Wetlands Inventory (NWI) data and land cover trends, including the addition or increase in pond and lake area via natural and anthropogenic forces. Areas exhibiting the greatest amount of difference (i.e., change) include the Prairie Pothole Region and the southeastern U.S. Geographies with the greatest levels of difference could be prioritized for NWI updates.</span><span style='color:rgb(74, 74, 74); font-family:"Source Sans Pro", sans-serif; font-size:16px;'> </span></div>
提供机构：
U.S. Fish & Wildlife Service
