DYNAMICS OF LAND USE LAND COVER (LULC) CHANGE DURING 2005-2018 USING REMOTE SENSING AND GIS: A STUDY ON CHUNDIA RIVER BASIN, WEST BENGAL

Abstract

Land Use Land Cover (LULC) change is very continuous process and dynamic in nature and its identification is important for sustainable development and future planning. The seasonal and temporal LULC change of the Chundia river basin from 2005 to 2018 is assessed using remote sensing and GIS tools. Landsat 5 for 2005 and 2010, and Landsat 8 for 2015 and 2018 are used to detect the LULC change through supervised classification in ERDAS 11 software. Google Earth is used for reclassification of the maps which are produced from satellite images. LULC features of the year 2005 to 2018 of dry and rainy season has been verified and reclassified based on Google Earth Quick Bird satellite imagery and LULC data and map has been generated using Arc-GIS 10.1 software. The result shows that temporally, in dry and rainy season, agricultural land has been decreased by 9.05 % (3357.42 ha) and 8.04 % (2985.34 ha) and fisheries enhanced by 9.01 % (3346.27 ha) and 8.02 % (2974.19 ha) respectively. In seasonally, agricultural land reduced by 1.38 % (511.63 ha) in 2005 and 0.38 % (139.54 ha) in 2018 that is totally occupied by fisheries. At present, seasonal conversion of the LULC is decreased due to development of the permanent fisheries. Annual rate of the alteration of LULC between agricultural land and fisheries is higher during the year 2015-2018 in both seasons.