|SREL Reprint #0669|
Factors Affecting Radiocesium Uptake by Plants
Inhabiting a Contaminated Floodplain
E. Pinder, III, Charles T. Garten, Jr., and Donald Paine
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.