LTER and Management of the Upper Mississippi Riverby J. Rodger Adams, Illinois State Water Survey, Champaign, IL, USA,
Abstract: The Upper Mississippi River is managed for multiple use by two federal agencies and five states. System management objectives include commercial navigation, commercial fisheries, minimum flood damage, energy development, water based recreation, water quality, and aquatic and wetland habitat preservation. Management decisions require information on economics, public attitudes, physical environment, and biological structure and function. Basic data, the hydrologic variables of water flux and depth and sediment concentration and transport rate, are being studied at three sites. Knowledge of the annual variation of suspended sediment and water discharge is basic for use of the river. Deviations from the average during floods and droughts affect riverine plants and animals as well as human uses of the river. Pool 19 water and sediment transport data are used to describe the riverine environment. Particular emphasis is given to impacts of tributary sediment loads and changes in channel border habitat areas.
Subject Headings: Water shortage | Rivers and streams | Sediment transport | Aquatic habitats | Water quality | Hydrologic data | Water-based recreation | Systems management | Fish management | Mississippi River
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