Rainfall erosivity of the karst plateaus of the Betari River Valley, Iporanga (SP)

Authors

  • José Antonio FERRARI Secretaria de Estado de Meio Ambiente de São Paulo; Instituto Geológico
  • Rosângela do AMARAL Secretaria de Estado de Meio Ambiente de São Paulo; Instituto Geológico
  • Gustavo ARMANI Secretaria de Estado de Meio Ambiente de São Paulo; Instituto Geológico
  • Silvio Takashi HIRUMA Secretaria de Estado de Meio Ambiente de São Paulo; Instituto Geológico

DOI:

https://doi.org/10.5935/0100-929X.20110001

Keywords:

Rainfall erosivity, Karst plateaus, Betari River, Ribeira Valley.

Abstract

This paper presents the first estimation of rainfall erosivity calculated from pluviographic data for the karst plateaus of the Betari River. The results were used to fit a probabilistic model for evaluating the occurrence of erosive events and also to develop local models for calculating rainfall erosivity from a single rainfall coefficient (RC). The EI30 values are smaller than those estimated from the model traditionally used to calculate rainfall erosivity in São Paulo State.

Published

2011-01-01

Issue

Section

RIG050