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Main Title Ecoregions and Subregions of Iowa: A Framework for Water Quality Assessment and Management.
Author Griffith, G. E. ; Omernik, J. M. ; Wilton, T. F. ; Pierson, S. M. ;
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. ;Iowa Dept. of Natural Resources, Des Moines. Environmental Protection Commission.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/466;
Stock Number PB95-137287
Additional Subjects Iowa ; Water quality management ; Ecosystems ; Natural resources ; Climate ; Soils ; Geomorphology ; Landforms ; Biological Indicators ; Environmental quality ; Land use ; Environmental monitoring ; Environmental management ; Reprints ; Ecoregions ; Biological criteria
Library Call Number Additional Info Location Last
NTIS  PB95-137287 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Ecoregion frameworks are valuable tools for inventorying and assessing environmental resources, for setting resource management goals, and for developing biological criteria and water quality standards. In a collaborative project between the Iowa Dept. of Natural Resources (DNR) and the the EPA's three major ecological regions of Iowa and defined six subregions of the Western Corn Belt Plains ecoregion within the state. Lists of candidate stream reference sites have been developed for seven regions, and the sites were visited and evaluated by Iowa DNR and U.S. EPA personnel to determine their suitability for sampling. The Iowa DNR plans to use the ecoregions and reference sites to better understand regional variations in stream quality, to assess attainable conditions, to develop biological criteria, and as a framework to report on water quality.