Estimation of spatial patterns of soil erosion using remote sensing and GIS: a case study of Indravati catchment

Sreenivasulu Vemu () and Udaya Pinnamaneni

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2011, vol. 59, issue 3, 1299-1315

Abstract: Soil erosion is a serious environmental problem in Indravati catchment. It carries the highest amount of sediments compared with other catchments in India. This catchment spreading an area of 41,285 km 2 is drained by river Indravati, which is one of the northern tributaries of the river Godavari in its lower reach. In the present study, USLE is used to estimate potential soil erosion from river Indravati catchment. Both magnitude and spatial distribution of potential soil erosion in the catchment is determined. The derived soil loss map from USLE model is classified into six categories ranging from slight to very severe risk depending on the calculated soil erosion amount. The soil erosion map is linked to elevation and slope maps to identify the area for conservation practice in order to reduce the soil loss. From the model output predictions, it is found that average erosion rate predicted is 18.00 tons/ha/year and sediment yield at the out let of the catchment is 22.30 Million tons per annum. The predicted sediment yield verified with the observed data. Copyright Springer Science+Business Media B.V. 2011

Keywords: Soil erosion; Sediment; Catchment; USLE; GIS (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/s11069-011-9832-6

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