SREL Reprint #0669

 

 

 

Factors Affecting Radiocesium Uptake by Plants Inhabiting a Contaminated Floodplain

John E. Pinder, III, Charles T. Garten, Jr., and Donald Paine

 

Abstract

The concentrations of radiocesium in the leaves of the emergent macrophyte, Sagittaria latifolia, were compared with the radiocesium concentrations, silt (i.e., particles with diameters < 0.105 mm), organic matter, and extractable K contents of the sediments in which the plants were rooted.  A multiple regression of leaf concentrations on a principle component analysis of sediment parameters suggested that radiocesium uptake:  1.  increased with decreasing silt content of the sediments; 2. increased with decreasing organic matter content of the sediments; and 3. for sediments low in silt content, uptake increased with increasing radiocesium concentrations in the sediments.  The relationships between uptake and sediment parameters suggested by the regression analyses were consistent with the results obtained from laboratory studies of nonflooded soils and, thus, indicated that the factors affecting radiocesium uptake from flooded sediments are similar to the factors affecting Cs uptake from nonflooded soils.

 

SREL Reprint #0669

Pinder, J.E., III, C.T. Garten Jr., and D. Paine. 1980. Factors affecting radiocesium uptake by plants inhabiting a contaminated floodplain. Acta Oecologica 1:3-10.

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