Mapping and Monitoring of Natural Resources Using Multi-Temporal High-Resolution Satellite Imagery
Mapping and monitoring of Land Use and Land Cover (LULC) changes is essential, as observed changes reflect environmental status and provide input criterions for optimum management and utilization of natural resources. The objective of this research is to quantify the spatio-temporal land-use landcover categories in Heggadadevanakote, Mysuru district, by employing remote sensing and Geographic Information System technology. The study was carried out using the Survey of India topographic map 57D/8 and, Landsat and high-resolution Sentinel-2 imageries. The study area was classified into six categories, namely, agriculture, waterbodies, river, open-scrubs, settlements, and forest, based on the classification themes developed by National Remote Sensing Agency. The comparison of Land-use and Land-cover in the years 2000 and 2019, derived from toposheet and satellite imagery interpretation, reveals that a substantial portion of forest and open scrub area have been converted to agricultural land as livelihood of population in this location is based on agriculture. The assessment of vegetation condition by Normalized difference vegetation index, ranged between 0.2 to 0.7, indicating poor to healthy vegetation.
Keywords: Land-Use and Land Cover, Satellite imagery, Geographic Information System, Mysuru district