Luer, "The Relative Erosivity
of Limestone, Dolomite and Coal Samples from an Operating Boiler," Wear 215, 180-190 (1998).
Study results using the models predict significant erosivity
changes for the 21st century.
1]), R is the rainfall erosivity
factor (MJ mm [ha.
factor El30 was derived from rainfall intensity data from the site and compared with a nearby site (Ciesiolka 1987), long-term estimates for Emerald (Rosenthal and White 1980), and for the site (from SedNet, Brough et al.
This approach differs from USLE and RUSLE, which lump the runoff and concentration terms into the erodibility and erosivity
terms, but is consistent with Kinnell and Risse (1998) and recent physically based sediment transport models such as WEPP (Flanagan and Nearing 1995).
, peak runoff rate) is not included, the model will not estimate soil loss for individual events well, as illustrated by Silburn and Loch (1992) and Freebairn et al.
(Table 1) has been estimated using the procedure of Rosewell and Turner (1992).
Soil types in the Richmond River catchment show that catchment average soil erosivity
index for the Wilsons River subcatchment is 0.
For erosion studies, the low variation in intensity across the plots is desirable, as it does not create continuous downslope lines of high rainfall erosivity
with increased potential for rill formation.
Simulations showed that plant growth and surface cover peaked in October, and the rainfall erosivity
peaked in December and remained high for some months.
Kinnell PIA (1993) Interill erodibilities based on the rainfall intensity-flow discharge erosivity
A brief introduction on rainfall erosivity
(EI30) in relation to rainfall depth for this study (Fig.
The choice for the nine microplots was based on three criteria: (1) the microplots had to have similar slope (~10%); (2) the microplots could not be located under the canopy of trees because a tree canopy alters the erosivity
of the rain; and (3) for the GC microplots, the vegetation cover had to be close to 100%, and no fresh or decaying pruned material could be present to avoid disturbance of erosion measurements.
Knapen A, Poesen J, Govers G, De Baets S (2008) The effect of conservation tillage on runoff erosivity
and soil erodibility during concentrated flow.
The most common rainfall erosivity
index is the R-factor of the Universal Soil Loss Equation (USLE; Wischmeier and Smith 1978) and Revised USLE (RUSLE; Renard et al.