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Title:Forested wetlands for water resource management in southern Illinois
Author(s):Mitsch, William J.; Dorge, Carol L.; Wiemhoff, John R.
Contributor(s):Illinois Institute of Technology
Subject(s):Water resources development
Water resources development--Illinois
Aquatic ecology
Cypress swamp
Phosphorus cycle
Hydrology budget
Sedimentation rates
Flooding river
Water quality
Primary productivity
Southern Illinois
Non-point source loading
Geographic Coverage:Illinois (state)
Abstract:A 30 ha cypress - tupelo (Taxodium distichum - Nyssa aquatics), floodplain swamp in Southern Illinois was studied for its hydrologic, biogeochemical and ecological characteristics. The hydrology, water chemistry, sediment dynamics and ecosystem productivity were described for the swamp and interactions with the adjacent Cache River were emphasized. A representative flood in the spring spilled water and sediments from the river to the swamp, temporarily reversing the normal flow of water from the swamp to the river. The annual hydrology budget for the swamp showed inflows of 7'4.4 cm throughfall, 63.9 cm runoff, and 21.9 cm groundwater; the outflows were 7'2.8 cm evapotranspiration, 54.9 cm surface outflow, and 21.0 cm groundwater, the latter two draining to the river. Loading rates for several chemical parameters were calculated from the swamp to the river and water chemistry of the swamp and river was contrasted. Primary productivity measurements showed high rates when the floating duckweed was included; cypress productivity was shown historically to be related to amount of flooding. A phosphorus budget was determined for the swamp and this indicated that the flooding river contributed over 10 times the phosphorus to the swamp as was discharged the rest of the year.
Issue Date:1977-11
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1977 held by William J. Mitsch, Carol L. Dorge, John R. Wiemhoff
Date Available in IDEALS:2016-04-20

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