Analysis of erodibility of two tropical soils using a process model

Lo, A. and El-Swaify, S.A. and Rose, C.W. (1988) Analysis of erodibility of two tropical soils using a process model. Soil Science Society of America Journal, 52 (3). pp. 781-784.

[img] PDF - Published Version
Restricted to ICRISAT researchers only


Field-scale runoff and sediment data obtained by rainfall simulation are conventionally analyzed to derive empirical erodibility such as the K-factor in the universal soil loss equation (USLE). In this study such data were obtained under standardized rainstorms on two highly weathered tropical soils from Hawaii (Typic Torrox and Hydric Dystrandept). In addition, a simplified version of a physicallybased model which embodies the processes of rainfall detachment, runoff detachment (entrainment) and deposition (sedimentation) was used to analyze the same data set. Higher USLE erodibility values corresponded well with higher values for the entrainment efficiency of overland flow. It was concluded that this process-based model can complement the empirical USLE to provide a transferable quantitative understanding of soil susceptibility to erosion.

Item Type: Article
Uncontrolled Keywords: Rainfall simulation, Erosion processes, Universal soil loss equation (USLE)
Author Affiliation: Department of Agronomy and Soil Science, University of Hawaii, Honolulu
Subjects: Soil Science and Microbiology > Soil Sciences
Divisions: General
Depositing User: Mr Arbind Seth
Date Deposited: 10 Dec 2013 10:25
Last Modified: 10 Dec 2013 10:25
Official URL:

Actions (login required)

View Item View Item