Soil erodibility and its estimation for agricultural soils in China

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Title Soil erodibility and its estimation for agricultural soils in China
Author Zhang, K. L.; Shu, A. P.; Xu, X. L.; Yang, Q. K.; Yu, Bofu
Journal Name Journal of arid environments
Editor Damian Ravetta
Year Published 2008
Place of publication United Kingdom
Publisher Elsevier
Abstract Soil erodibility (the K factor in the Universal Soil Loss Equation, USLE) is an important index to measure soil susceptibility to water erosion, and an essential parameter needed for soil erosion prediction. To evaluate the appropriateness of the nomograph and other methods for estimating the K factor for the USLE and to develop a relationship for soil erodibility estimation for Chinese soils, a set of soil erodibility values was calculated using soil loss data from natural runoff plots at 13 sites in eastern China. The definition of soil erodibility in relation to the USLE was strictly followed. Comparing these measured values to those estimated using the nomograph method, the method adopted for the EPIC model and the formula of Shirazi and Boersma, we found that all these estimated soil erodibility values were considerably higher than the measured soil erodibility for these sites in eastern China. Soil erodibility for these Chinese sites is typically in the range from 0.007 to 0.02 t h (MJ mm)−1 and consistently lower in comparison to the measured K values from the USLE database for the conterminous United States. Strong linear relationship between the estimated and measured K values were used to develop empirical formulas for soil erodibility estimation from soil survey data for sites in eastern China.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.jaridenv.2007.11.018
Volume 72
Issue Number 6
Page from 1002
Page to 1011
ISSN 0140-1963
Date Accessioned 2009-05-05
Date Available 2010-07-06T07:00:01Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Hydrology
URI http://hdl.handle.net/10072/23469
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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