The Heinz Center's State of the Nation's Ecosystems
ecosystem: Freshwater
indicator Name: Extent of Freshwater Ecosystems: Riparian Areas
page # in printed report: 139
location on page: lower
data source: Multi-Resolution Land Characterization (MRLC) Consortium and USGS National Hydrography Dataset, processed by U.S. EPA National Exposure Research Laboratory. Coverage: lower 48 states.
notes: please see technical notes for further details on accessing these data from their original source; this data table comes from a specific graphic in The State of the Nation's Ecosystems report (www.heinzctr.org/ecosystems)

units: % of total riparian miles
  1992
forested 34.5
grass / shrub / wetland 42.5
urban/agricultural 22.9