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University of Arkansas, Fayetteville

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Articles 61 - 64 of 64

Full-Text Articles in Environmental Indicators and Impact Assessment

Effects Of Changes In Surface Water Regime And/Or Land Use On The Vertical Distribution Of Water Available For Wetland Vegetation: Dynamic Model Of The Zone Of Aeration (Appendix To Part 1 Of Completion Report For Project A-023-Ark), Robert N. Maccallum, R. A. Sims Jun 1980

Effects Of Changes In Surface Water Regime And/Or Land Use On The Vertical Distribution Of Water Available For Wetland Vegetation: Dynamic Model Of The Zone Of Aeration (Appendix To Part 1 Of Completion Report For Project A-023-Ark), Robert N. Maccallum, R. A. Sims

Arkansas Water Resources Center Technical Reports

Appendix to Part 1 of Completion Report for Project A-023-ARK

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Effects Of Changes In Surface Water Regime And/Or Land Use On The Vertical Distribution Of Water Available For Wetland Vegetation: Dynamic Model Of The Zone Of Aeration (Part 1 Of Completion Report For Project A-023-Ark), Robert N. Maccallum, R. A. Sims Jun 1980

Effects Of Changes In Surface Water Regime And/Or Land Use On The Vertical Distribution Of Water Available For Wetland Vegetation: Dynamic Model Of The Zone Of Aeration (Part 1 Of Completion Report For Project A-023-Ark), Robert N. Maccallum, R. A. Sims

Arkansas Water Resources Center Technical Reports

A mathematical model by Green, simulating one-dimensional vertical ground-water movement in unsaturated soils of the prairie region of Kansas, has been adapted for use in a wetlands environment typified by the wetlands forest of Eastern Arkansas. The model consists of two second-order, non-linear, partial differential equations and an algorithm for their numerical solution. The original model was extended to include functions for seasonal changes in transpiration and for drainage of excess precipitation. Before the addition of the two functions, the model reliability was limited to one growth season.

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An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System - Volume Ii - Effects Upon The Phytoplankton Associations, Myra Mcnutt, Richard L. Meyer Jan 1976

An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System - Volume Ii - Effects Upon The Phytoplankton Associations, Myra Mcnutt, Richard L. Meyer

Arkansas Water Resources Center Technical Reports

Phytoplankton are a major source of primary production in aquatic ecosystems and constitute one of the most important assemblages of the biotic community. These organisms are the basic level of the trophic pyramid upon which other organisms are dependent. The development, maintenance, and environmental influence of phytoplankton in and on the aquatic ecosystem has been a subject of interest and concern for many years. Most of the studies concerning the nature and distribution of phytoplankton have been confined to lacustrine systems. Hutchinson (1967), citing several lake studies, sutmarized various aspects of the physical and chemical factors associated with phytoplankton. These …

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An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System: Volume I - Introduction, Summary And Conclusions, And Recommendations, Myra Mcnutt, T. M. Buchanan, L. R. Kraemer, R. L. Meyer, E. H. Schmitz Jan 1976

An Evaluation Of The Effects Of Dredging Within The Arkansas River Navigation System: Volume I - Introduction, Summary And Conclusions, And Recommendations, Myra Mcnutt, T. M. Buchanan, L. R. Kraemer, R. L. Meyer, E. H. Schmitz

Arkansas Water Resources Center Technical Reports

The Arkansas River originates in the eastern slopes of the Rocky Mountains near Leadville, Colorado, and extends through Kansas, Oklahoma, and Arkansas, where it flows into the Mississippi River. The Arkansas River is approximately 1,450 miles in length and drains a total area of 160,500 square miles. The river and its tributaries have been developed for navigation, flood control, and hydro-electric power, as well as recreational purposes under the River and Harbor Act of July 24, 1946. The development of the Arkansas River for recreational use will be completed in the near future. The McClellan-Kerr Arkansas River Navigation System was …

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