Rainfall erosivity: An overview of methodologies and applications

Yin, Shuiqing and Nearing, Mark and Borrelli, Pasquale and Xiaochan, Xue. (2017) Rainfall erosivity: An overview of methodologies and applications. Vadose Zone Journal, 16 (12). pp. 1-16.

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The rainfall erosivity factor (R factor) is one of six erosion factors in the Universal Soil Loss Equation (USLE), which together reflect the combined effects that cause soil loss by rill and interrill erosion on hillslopes by precipitation. It is defined as the summation of event EI30 (the product of kinetic energy and maximum 30-min intensity) over a year and calculated based on rainfall hyetograph data. The R factor was developed in the various versions of the USLE, including the definition of the individual event and the criterion for selecting events used in the calculation, the equation used to estimate the unit kinetic energy from the rainfall intensity, the estimation of erosivity from the snowmelt and thaw, and erosivity mapping. Most research on rainfall erosivity deals with any of three aspects: developing estimation methods for deriving erosivity from courser resolution rainfall data (such as daily, monthly, and annual) but with greater spatial and temporal coverages than those from hyetograph data; preparing erosivity maps including those for annual average, monthly, and 10-yr recurrence erosivity; and documenting temporal trends in erosivity. Rainfall erosivity research on these three aspects is summarized to provide a greater understanding of the R factor.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Borrelli, Pasquale
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Soil Science Society of America
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:25 Jun 2018 09:17
Deposited On:25 Jun 2018 09:17

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