Database of rainfall erosivity factor for 141 locations in Brazil.

Soil erosion is a serious agricultural and environmental problem considered as threat to sustainable development around the world. Rainfall primary cause of soil erosion, what leads knowledge its potential (rainfall erosivity – R-factor) be valuable tool for design land conservation best practices. As Brazil has lack information about rainfall erosivity, present paper determined R-factor 141 pluviographic stations distributed over Brazilian territory. Initially, erosive rainfalls were identified, then EI30 index was used obtain values. Regression models estimation using daily data established based on correlation between monthly average values modified Fournier index. Results showed that annual in analyzed ranged from 368.7 16,850.6 MJ mm ha-1 h-1 year-1. The results presented help expand spatial distribution Brazil, contributing better planning use.