The objective of this study was to determine the Universal Soil Loss Equation (USLE) rainfall erosivity
factor (R) by using the standard procedure based on pluviographic records and to adjust the equations to estimate the rainfall erosivity
based on the rainfall data from the Valley of Rio do Peixe, in the state of Santa Catarina (SC), Brazil.
Erosion estimation was obtained by calculating rain erosivity
factor, soil erodibility factor, length and slope ramp factor, and land use and conservation factor.
Caption: Figure 2: Rainfall erosivity
factor versus yearly rainfall.
In 1988, the R-factor at approximately 850 locations was published as part of the rainfall erosivity
evaluation conducted by ICONA (1988).
map is prepared by multiplying MFI and BGI maps using Raster Calculator and classified into low (index less than 4), moderate (4-6 index) and high (index above 6).
is estimated using the measured [EI.
The effect of tillage depth, tillage speed and soil condition on chisel tillage erosivity
Thus, the model can be used to estimate erosivity
in larger areas by simply finding out the soil loss rate per hectare and extrapolating this to a study area with the same characteristics.
Approach to the definition of rain erosivity
and soil erodibility in West Africa", en: De Boodt, M.
Biomass-fired boiler fly ash has been reported to have relatively high erosivity
due to high concentrations of chemically active compounds containing alkali, sulphur, phosphorus and chlorine (Wang, 1995).
R = rainfall and runoff erosivity
index for geographic location (Figure 7-3),
Seasonal and spatial patterns of erosivity
in a tropical watershed of the Colombian Andes, Journal of Hydrology, 1-15, 2005.