A Scenario of Rainfall Erosivity Index Research

Rainfall erosivity index is an important index to evaluate the soil loss due to rainfall. Rainstorm plays a paramount role in surface sealing, runoff and erosion process. Research on rainfall erosivity index is important in understanding the mechanism of soil erosion processes. This paper gives a scenario on the important research work done by the scientists to evaluate the erosivity index by using various methods and approaches. The aim of this paper was also to highlight that methodology of the scientists which they have used to get the appropriate erosivity index value for their study. The quality and representativeness of erosivity index has significance in estimation of soil loss, as rainstorm is initiating factor in soil erosion by raindrops.