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ECOREGIONS AND SUBREGIONS OF IOWA: A FRAMEWORK FOR WATER QUALITY ASSESSMENT AND MANAGEMENT
Citation:
Griffith, G., J.M. Omernik, T. Wilton, AND S. Pierson. ECOREGIONS AND SUBREGIONS OF IOWA: A FRAMEWORK FOR WATER QUALITY ASSESSMENT AND MANAGEMENT. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/466 (NTIS PB95137287), 1994.
Description:
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. n a collaborative project between the Iowa Dept. of Natural Resources (DNR) and the U.S. Environmental Protection Agency (EPA) the authors have refined boundaries of the EPA's three major ecological regions of Iowa and defined six subregions of the Western Corn Belt Plains ecoregion within the state. ists 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. he 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.
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ECOREGIONS AND SUBREGIONS OF IOWA: A FRAMEWORK FOR WATER QUALITY ASSESSMENT AND MANAGEMENT