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Soil salinity is a major hazard to agriculture and water resources, restricting food production in many countries of the world. In India, soil salinity is a problem that generally occurs in the arid, semiarid regions and canal command areas. The accessible databas~ over the country for salt affected soils and their classification is limited and scattered due to the variability of salinity/alkalinity levels in the field and an absence of uniformity in criterion that define identification and inventory. Furthermore, statistics about the total area in the country provided by different government agencies do not match (Singh et al. 2009). A suitable and accurate method is required for identification monitoring and mapping of soil salinity in order to check the threat to normal lands for effective management and amelioration of salty lands. A conventional survey demands a great deal of time and capital for mapping, whereas innovative geoinformatics techniques provide abundant potential for mapping and monitoring a larger coverage of soil salinity at regular intervals (Lu et aI., 2004). Mapping and monitoring of soil salinity is required to establish its areal extent and also to keep track of changes in salinity in order to formulate appropriate and timely management strategies for reclamation and rehabilitation of salt affected soils. Geographical Information System (GIS) tools facilitate the complex studies of soil hazards such as soil salinity/sodicity and help to manage a great set of variables and a huge amount of spatial data. In addition, data on rainfall, topography, soil type and other spatial information which affect or lead to soil salinity can be analyzed using GIS to determine …