Authors : G.M. Munna, S.R. Sourav, Al- Imran and R.K. Roy
Abstract: Due to various socioeconomic activities and natural phenomena, the Earth’s surface is undergoing rapid Land Use and Land Cover (LULC) changes. A significant growth in built-up areas, i.e., urban development is increasingly transforming the landscape from natural cover types to Impervious Surface (IS). These changes break down the Earth’ps ecological system. Therefore, detecting the changes for future development is important. For this research, Sylhet city have been selected over the time period 2006-2019. The city is classified into two major land use and land cover changes such as water body and non-water body. Analysis of change detection has been conducted to compare the quantities of conversions of land cover class between time intervals. The aim of this study is to detect the change in land-use/land-cover from 2006-20019 and to analyze possible causes of change. The objective of this research is to use Geospatial Information System (GIS) methods to classify and map land-use/land-cover of the study region use. Geospatial Information System (GIS) one of the tools that is very important for the production of land use maps and land cover maps. One of the major section for this research is Land Use/Land cover (LULC), we used NDVI method to classify water and non-water body. The rate of change in LULC between the year 2006 and 2019 is estimated by assessing percentage change in LULC between these periods divided by number of years (13 years). The rate of change indicates that Sylhet city has lost 7.41% water bodies between 2006-2019. Finally, some methods to protect the land cover are suggested and provide an overview of the present trends in land use and land cover modifications.
G.M. Munna, S.R. Sourav, Al- Imran and R.K. Roy, 2020. Land Use/Land Cover Change of Sylhet City using Remote Sensing and GIS. Journal of Engineering and Applied Sciences, 15: 2734-2739.