Influence of fertilizing on the (137)Cs soil-plant transfer in a spruce forest of Southern Germany.
Fertilization with 2.5t/ha limestone: (83% CaCO(3), 8% MgO, 6% K(2)O, 3% P(2)O(5)) reduces the (137)Cs transfer from spruce forest soil into plants like fern (Dryopteris carthusiana) and blackberry (Rubus fruticosus) by a factor of 2-5 during at least 11 years as measured by the aggregated transfer factor T(ag). In 1997 and 2006 these results were confirmed by additional measurements of the (137)Cs transfer factor TF, related to the root zone (O(h) horizon), which were explained by the selective sorption of (137)Cs in the root zone by measurements of the Radiocaesium Interception Potential (RIP) in fertilized (RIP>179meq/kg) and non-fertilized soils (RIP<74meq/kg).
Hochschule Ravensburg-Weingarten, University of Applied Sciences, Weingarten, Germany. zibold@hs-weingarten.de
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Zibold
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Klemt
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Konopleva
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Konoplev
D002588:Cesium Radioisotopes / Q000378:metabolism*; D005858:Germany; D028222:Picea / Q000378:metabolism*; D012990:Soil Pollutants, Radioactive / Q000378:metabolism*; D014197:Trees / Q000378:metabolism*
D002588:Cesium Radioisotopes; D012990:Soil Pollutants, Radioactive