You are here:
MAP OF ECOREGIONS OF THE MISSISSIPPI ALLUVIAL PLAIN
Citation:
Chapman, S. S., B. A. Kleiss, J M. Omernik, T. L. Foit, AND E. O. Murray. MAP OF ECOREGIONS OF THE MISSISSIPPI ALLUVIAL PLAIN. U.S. Geological Survey, Washington, DC, 2004.
Description:
The ecoregions of The Mississippi Alluvial Plain (73) have been identified, mapped, and described and provide a geographic structure for environmental resources research, assessment, monitoring, and management. This project is part of a larger effort by the U.S. EPA to create a national, hierarchical ecoregion framework. This ecoregion framework is methodologically consistent with those developed elsewhere by the U.S. EPA and allows biologists and resource managers to share and compare environmental data across political boundaries. The amount of environmental detail that is delineated at different hierarchical levels varies from level I, the broadest grouping, to level IV, the most detailed.
The Mississippi Alluvial Plain ecoregion project refined and subdivided the level III ecological region within the states of Arkansas, Tennessee, Kentucky, Mississippi, Missouri, and Louisiana. It involved researchers from USEPA Region VII, the USEPA National Health and Environmental Effects Research Laboratory (Corvallis, Oregon), the Mississippi Department of Environmental Quality, the Arkansas Department of Environmental Quality, the Arkansas Multi-Agency Wetland Planning Team, the U.S. Army Corps of Engineers, the U.S. Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS), U.S. Department of Interior - Fish and Wildlife Service, and the U.S. Department of Interior - U.S. Geological Survey (USGS) - Earth Resources Observation Systems (EROS) Data Center. The refined ecoregions of the Mississippi Alluvial Plain (73) will be published as a double-sided, color poster by the U.S. Geological Survey (USGS) and will measure 34 x 44 inches. The poster includes an original 1:1,150,000-scale map that delineates the two level III and sixteen level IV ecoregions of the Mississippi Alluvial Plain (73). Each level IV ecoregion is described in the accompanying text and tables. 14 other posters in the ecoregion series have already been published by the USGS and cover nineteen states.
Level IV ecoregion frameworks have been developed by the US EPA for Alabama, Colorado, Delaware, Florida, Georgia, Idaho, Indiana, Iowa, Kansas, Massachusetts, Maryland, Mississippi, Montana, Nebraska, Nevada, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Utah, Virginia, Washington, Wisconsin, West Virginia, Washington, and Wyoming; other projects are in progress for Arkansas, Texas, and Louisiana.