Impact of Land Use Land Cover on Soil Erosion in Krishna Lower Subbasin

N. Bidyarani Chanu; A. Mani; M. Raghu Babu; M. Venkata Suneela

doi:10.52151/jae2018552.1654

Authors

N. Bidyarani Chanu College of Agricultural Engineering, Bapatla Author
A. Mani Department of Soil and Water Engineering, College of Agricultural Engineering, Bapatla Author
M. Raghu Babu Department of Soil and Water Engineering, ANGRAU, Guntur Author
M. Venkata Suneela Department of Mathematics, College of Agricultural Engineering, Bapatla. Author

DOI:

https://doi.org/10.52151/jae2018552.1654

Keywords:

Soil erosion, RUSLE, Remote sensing, GIS, study area

Abstract

Soil degradation is a severe environmental problem confronting the world today. A study was undertaken to apply revised universal soil loss equation (RUSLE) to estimate the soil erosion and effect of land use and land cover on soil erosion in Krishna lower sub-basin using Remote Sensing and GIS. Spatial map of each RUSLE parameters was derived in Arc GIS 10.1 and ERDAS IMAGINE 9.3 for the 11317.36 km2 Krishna lower sub-basin catchment in Andhra Pradesh. The values of R, K, LS, C, P factors of the catchment area were used to generate soil erosion spatial maps. The study showed that the average annual soil loss was sensitive to rainfall factor, R, land use and land cover. The computed maximum annual soil erosion for the years 1993 to 2015 was 28.69 t.ha-1. yr-1. Severe erosion was found in settlements, wasteland and during rabi crop. The estimated soil loss from “high” to “very high” occurred in scrubland. Moderate erosion occurred in double/ triple cropping area, and slight erosion occurred in forest and during kharif crop.

Author Biographies

N. Bidyarani Chanu, College of Agricultural Engineering, Bapatla

Research Scholar,
A. Mani, Department of Soil and Water Engineering, College of Agricultural Engineering, Bapatla

Professor,
M. Raghu Babu, Department of Soil and Water Engineering, ANGRAU, Guntur

Professor,
M. Venkata Suneela, Department of Mathematics, College of Agricultural Engineering, Bapatla.

Assistant Professor,

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