Mapping of Salt Affected and Waterlogged Areas in Krishna Western Delta Using Remote Sensing.

Abstract A remote sensing case study was formulated to map salt affected and water logged areas in the Krishna Western Delta in Andhra Pradesh. IRS images and field data were combined to identify spatial distribution of salt affected soils for the 5 Krishna Western Delta main commands in summer 2006. The salt affected soils are categorized into 3 classes of salinity (slight, moderate, strong). About 18868 hectares of salt- affected soils were found to occur in the command area and the satellite data was found to be useful in identification and mapping of surface water logging in Krishna Western delta and they were found in 4675 hectares.