THE INFLUENCE OF MEAN ANNUAL RAINFALL AND SOIL TEXTURE ON THE CS-137 VERTICAL-DISTRIBUTION IN SOILS FROM SOUTHERN CHILE

Authors
SCHULLER P ELLIES A
Citation
P. Schuller et A. Ellies, THE INFLUENCE OF MEAN ANNUAL RAINFALL AND SOIL TEXTURE ON THE CS-137 VERTICAL-DISTRIBUTION IN SOILS FROM SOUTHERN CHILE, Zeitschrift fur Pflanzenernahrung und Bodenkunde, 157(6), 1994, pp. 429-432
Citations number
13
Categorie Soggetti
Plant Sciences
Journal title
Zeitschrift fur Pflanzenernahrung und Bodenkunde → ACNP
ISSN journal
00443263
Volume
157
Issue
6
Year of publication
1994
Pages
429 - 432
Database
ISI
SICI code
0044-3263(1994)157:6<429:TIOMAR>2.0.ZU;2-5
Abstract
The influence of mean annual rainfall and soil texture on the vertical distribution Cs-137 from global fallout was studied in undisturbed vo lcanic ash soils from southern Chile. The areal concentration and tran slocation depth increase with the mean annual precipitation. In spite of the high rainfall at the sampled area (970 - 2500 mm a(-1)), the hi ghest Cs-137 contamination was found in the upper 10 cm layer. The ver tical migration is reduced by the high adsorption capacity of these vo lcanic volumen. The translocation depth reaches only up to 26 cm in th e clay soils, 35 cm in the silty soils and 70 cm in the sandy soil.