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| Titel |
Identification of areas vulnerable to soil erosion risk in India using GIS methods |
| VerfasserIn |
H. Biswas, A. Raizada, D. Mandal, S. Kumar, S. Srinivas, P. K. Mishra |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1869-9510
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| Digitales Dokument |
URL |
| Erschienen |
In: Solid Earth ; 6, no. 4 ; Nr. 6, no. 4 (2015-11-30), S.1247-1257 |
| Datensatznummer |
250115526
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| Publikation (Nr.) |
 copernicus.org/se-6-1247-2015.pdf |
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| Zusammenfassung |
| This paper attempts to provide information for policymakers and soil conservation planners in the form of district-wise soil erosion risk (SER)
maps prepared for the state of Telangana, India. The SER values for each
district were computed by extracting the information on grid-wise soil
erosion and soil loss tolerance limit values existing on the country-scale
in a GIS environment. The objectives of the study were to (i) identify the
areas of the state with a high erosion risk, and (ii) identify areas with an
urgent need of conservation measures. The results reveal that around 69 %
of the state has a negligible risk of soil erosion above the tolerance
limits, and does not call for immediate soil conservation measures. The
remaining area (2.17 M ha) requires conservation planning. Four districts,
viz. Adilabad, Warangal, Khammam, and Karimnagar are the most risk-prone with
more than one-quarter of their total geographical areas showing net positive
SER values. In order to obtain a clearer picture and categorize the
districts based on their extent of vulnerability, weighted erosion risk
values were computed. Adilabad, Warangal, and Khammam were identified as the
worst-affected districts in terms of soil erosion, and therefore are in need
of immediate attention of natural resource conservation. |
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