Assessment of forest area converted to non-forest after Gujjar rehabilitation and Tehri dam rehabilitation programmes using remote sensing and GIS techniques

For generating maps the primary data acquired plays a very important role. This study is based on the data acquired from the working plans of the divisions. Moreover the accuracy and the precision of the results inferred from the maps depended on the primary data available. The tools and techniques of remote sensing and GIS saved a considerable amount of time and reduced the number of visits to the field. In this study necessary amount of ground truthing could not be carried out given the time constraint. Higher accuracy and precision of information could be ascertained by conducting more number of ground truthing visits. The maps generated through this study can be successfully utilized for various studies in the long run.