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Developing an erodibility triangle for soil textures in semi-arid regions, NW Iran.
- Source :
-
CATENA . Jul2016, Vol. 142, p221-232. 12p. - Publication Year :
- 2016
-
Abstract
- There is a strong need to develop a simple method for rapid estimation of erodibility using readily available data. In this study, soil erodibility was measured using eleven soil textures at the plot scale (60 cm × 80 cm) on a slope of 9% in a semi-arid region. A total of 110 soil erosion experiments were conducted using ten simulated rainfalls (50 mm h − 1 for 30 min). A regression model was developed based on silt and clay content (R 2 = 0.82, p < 0.001) and was applied to estimate erodibility for 231 soils in the textural triangle. Kriging was used to spatial interpolate erodibility using these data to unknown soils on the textural triangle. A soil erodibility triangle was developed using kriging technique and its accuracy was evaluated using seven other soils. The technique showed a 5.4% error and allowed the prediction of soil erodibility in semi-arid areas by using the soil erodibility triangle. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SOIL texture
*SOIL erosion
*ARID regions
*RAINFALL
*REGRESSION analysis
*KRIGING
Subjects
Details
- Language :
- English
- ISSN :
- 03418162
- Volume :
- 142
- Database :
- Academic Search Index
- Journal :
- CATENA
- Publication Type :
- Academic Journal
- Accession number :
- 114988790
- Full Text :
- https://doi.org/10.1016/j.catena.2016.03.015