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Geospatial comparison of four models to predict soil erodibility in a semi-arid region of Central India

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Title Geospatial comparison of four models to predict soil erodibility in a semi-arid region of Central India
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Creator Partha Pratim Adhikary
S. P. Tiwari
Debashis Mandal
Brij Lal Lakaria
M. Madhu
 
Subject Geospatial analysis _ GIS _ Land use _ Soil erodibility factor
 
Description Not Available
The soil erodibility factor of RUSLE is one of
the important indicators of land degradation. It can be
measured either directly under natural or simulated rainfall
condition or indirectly estimated by empirical models. A
geospatial variation of this factor is essential for prioritization
of reclamation measures. However, geospatial upscaling
of soil erodibility factor is very uncertain because
of its dynamic nature and dependent on the parameters
used in the model. This paper studies the geospatial comparison
of the effectiveness of four different models to
predict the soil erodibility factor by means of the independent
role of each model parameter. 669 soil samples
were collected from different land uses of Central India on
grid basis and analyzed for physicochemical properties.
The soil erodibility factor was estimated using four different
models. Geostatistical analysis was performed on the
point erodibility data of each model to obtain the spatial
pattern. Analysis of variance showed that soil properties
and erodibility factor varied significantly with various land
uses. Croplands showed higher susceptibility to erosion
than woodlands and grasslands. The erodibility equation
that used particle size with soil organic matter showed
better agreement with the variation of land use than the
equation used only particle size. Therefore, the models that
dynamically integrate soil intrinsic properties with land use
can successfully be used for geospatial upscaling of soil
erodibility factor.
Not Available
 
Date 2020-03-17T09:01:29Z
2020-03-17T09:01:29Z
2014-05-21
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33900
 
Language English
 
Relation Not Available;
 
Publisher Not Available