Fator erodibilidade e tolerância de perda dos solos do Estado de São Paulo

Anny Rosi Mannigel; Morel de Passos e Carvalho; Dolorice Moreti; Luciano da Rosa Medeiros

doi:10.4025/actasciagron.v24i0.2374

Erodibility factor and loss tolerance of soils of São Paulo state (Brazil)

Authors

Anny Rosi Mannigel UNESP Author
Morel de Passos e Carvalho UNESP Author
Dolorice Moreti UNESP Author
Luciano da Rosa Medeiros UNESP Author

DOI:

https://doi.org/10.4025/actasciagron.v24i0.2374

Keywords:

erosão do solo, manejo do solo, conservação do solo, equação universal de perda de solo

Abstract

Erodibility factor (K) and soil loss tolerance (T) were determined for Sao Paulo State (Brazil) soils with base on the new Brazilian System of Soils Classification published in 1999. Twenty-five representative profiles from the new soils were studied. Bouyoucos’s expression was used for indirect determination of erodibility factor for A and B horizons. Soil loss tolerance was determined based on Smith and Stamey (1964). The extreme values of erodibility factor for A horizon were 0.4278 and 0.0044 t.ha.h/ha.MJ.mm, respectively for an Ultisol and a Dystric Gleisol. The extreme values of erodibility factor for B horizon were 0.5750 and 0.0038 t.ha.h/ha.MJ.mm, respectively for a Spodosol and an Oxisol. On the other hand, the extreme values of soil loss tolerance were 14.70 (Inceptisol/Entisol) and 3.00 (Ultisol) t/ha.year. It was determined that with the increase of the textural gradient there was a decrease in soil loss tolerance and increase in the soil erodibility factors

Downloads

Download data is not yet available.

Downloads

PDF (Portuguese)

Published

2008-04-30

Issue

Vol. 24 (2002)

Section

Agronomy

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Mannigel, A. R., e Carvalho, M. de P., Moreti, D., & Medeiros, L. da R. (2008). Erodibility factor and loss tolerance of soils of São Paulo state (Brazil). Acta Scientiarum. Agronomy, 24, 1335-1340. https://doi.org/10.4025/actasciagron.v24i0.2374