JEQ Journal of Natural Resources and Life Sciences Education
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Published in J Environ Qual 12:86-91 (1983)
© 1983 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Evaluating the Release of Soluble Components From Sediment1

Y. Avnimelech, M. Yamamoto and R. G. Menzel2

ABSTRACT

The evaluation of soluble components exchange between sediments and the pore or overlying water is essential for the quantitative description of sediment-water systems. Lake and farm pond sediments differing in degree of nutrient enrichment were equilibrated with varying amounts of water. The extraction of soluble components is described as a function of a linear distribution of the soluble components between the solid and liquid phases and through mass-balance considerations. The sizes of potentially available nutrient pools and the distribution coefficients were calculated for NH4+, organic N, and C. Ortho-P release appeared to depend upon solubility consideration and did not follow the above-mentioned model.

Key Words: lakes • farm ponds • nutrients • organic carbon • organic nitrogen • ammonium • phosphorus • adsorption • distribution coefficients • adsorption capacity

NOTES

1 Contribution of the Dep. of Agronomy, Oklahoma Agric. Exp. Stn., Oklahoma State University. Published with approval of the Director as paper no. 4095 of the Journal Series. In cooperation with an agreement with the Water Quality and Watershed Research Lab., USDA-ARS, Durant, Okla.

2 Visiting Soil Scientist, Technion, Israel Institute of Technology, Haifa, Israel; and Chemist and Soil Scientist, respectively, USDA-ARS, Water Quality and Watershed Research Lab., Durant, OK 74701.

Received for publication February 2, 1982.




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Copyright © 1983 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.