Evaluation of rainfall erosion index (R) in State of Piauí, Brazil

Authors

  • Cláudia Aquino Universidade Federal do Piauí
  • José Oliveira Universidade Federal do Ceará
  • Marta Sales Universidade Federal do Ceará

Keywords:

rainfall erosion index (R), conservative land use planning, soil erosion by water.

Abstract

The Rainfall Erosion Index (R) is the term of the Universal Soil Loss Equation that expresses the erosive capacity of the precipitation, which dissociates the soil particles by impact, leading to the impoverishment of the soil. Considering the importance of this factor, the present study aims to estimate the values of the Rainfall Erosion Index for the dry lands in Piauí - Brazil, identified according to UNEP (1991). In order to estimate the index we used the Bertoni and Lombardi Neto´s Method (1999). The results showed that the average annual value of the index was 5,153 MJ.mm/ha.h.year; the smallest value was 3,316 MJ.mm/ha.h.year and the highest one was 6,877 MJ.mm/ha.h.year.

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Published

2008-11-18

Issue

Vol. 37 No. 3 (2006)

Section

Ciência do Solo e Engenharia Agrícola

License

Atribuição
CC BY

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How to Cite

AQUINO, Cláudia; OLIVEIRA, José; SALES, Marta. Evaluation of rainfall erosion index (R) in State of Piauí, Brazil. Revista Ciência Agronômica, [S. l.], v. 37, n. 3, 2008. Disponível em: https://periodicos.ufc.br/revistacienciaagronomica/article/view/83715. Acesso em: 25 apr. 2026.