1Division of Remote Sensing Applications, ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur-440 033, Maharashtra, India
2ICAR-Central Coastal Agricultural Research Institute, Ela, Old Goa, Goa
3Department of Soil Science and Agricultural Chemistry, College of Agriculture, Indira Gandhi Krishi Viswavidyalaya, Raipur-492 012, Chhattisgarh, India
*Corresponding Author: Nirmal Kumar, Division of Remote Sensing Applications, ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur-440 033, Maharashtra, India, Email: urwithnirmal@gmail.com
Online published on 20 July, 2020.
The aim of this review paper is to provide a comprehensive overview of geographical information system and remote sensing-based water erosion assessment. With multispectral and multi-temporal low cost data at various resolutions, remote sensing plays an important role for mapping the distribution and severity of water erosion and for modeling the risk and/or potential of soil loss. The ability of geographic information system to integrate spatial data of different types and sources makes its role unavoidable in water erosion assessment. The role of satellite data in identification of eroded lands and in providing inputs for erosion modeling has been discussed. The role of GIS in mapping eroded lands based on experts’ opinion, in generating spatial data inputs from sources other than remote sensing and in integrating the inputs to model the potential soil loss has been discussed.
AHP, CORINE, Erosion risk, Multi criteria decision analysis, RUSLE
