Soil erosion determination in a watershed from northern Paraná (Brazil) using 137Cs

Author:

Andrello Avacir Casanova1,Appoloni Carlos Roberto1,Guimarães Maria de Fátima1

Affiliation:

1. Universidade Estadual de Londrina, Brazil

Abstract

The objective of this work was study the soil losses or gains in a watershed in the municipal district of Cambé, Paraná using 137Cs as marker for the determination of soil redistributions. A transect sampling was used to evaluate the influence of different tillage on soil erosion. One point, located in a forest area was sampled and analyzed to determine the reference inventory of cesium-137 deposited by fallout. The average value of the reference inventory was 292 Bq m-2. The cesium-137 inventory of the transect samples varied from 80 Bq m-2 to 403 Bq m-2. The sampling points in pasture presented soil losses. The sampling points in coffee plantation did not present losses or gains. The sampling points in soybean cultivated areas presented soil losses.

Publisher

FapUNIFESP (SciELO)

Subject

Multidisciplinary

Reference25 articles.

1. Metodologia do 137Cs para determinação da erosão e deposição de solo em uma bacia de solo LRd do Norte do Paraná;Andrello A. C.,1997

2. Uso do césio-137 para avaliar taxas de erosão em cultura de soja, café e pastagem;Andrello A. C.;R. Bras. Ci. Solo,2003

3. Soil erosion evaluation in a small watershed in Brazil through 137Cs fallout redistribution analysis and conventional models;Bacchi O. O. S.;Acta. Geo. Hisp.,2000

4. Características climáticas de Londrina;Corrêa A. R.,1985

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