Detection of Salinity Level in Soil for Vegetation Using Remote Sensing & GIS Techniques in Nawa (original) (raw)
The salinity changes as well as vegetation coverage changes have been adopted for the present study. Changes in vegetation coverage and salinity change are a slow & gradual process and are hard to identify without long term historical data. The Landsat 8 and ETM+ data along with Electronic conductivity data of soil and International Soil Reference and Information Centre (ISRIC) soil PH data were used to show the changes in vegetation coverage as well as in soil salinity. Several remote sensing based indices like NDVI, NDSI and MSI were employed to extract spatial information on vegetation health, soil salinity and soil moisture. The soil salinity in terms of NDSI increased in the study area. The NDSI values were compared with ISRIC soil data and Electrical conductivity (EC) soil data of Groundwater board. The Vegetation coverage of the study area has been changed gradually since 2010 to 2017. Land use and land cover supervised classification has been done using Landsat 8 data of 201...
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