Science Target Conference Systems, Ajman 4th International Environment Conference 2016

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Land use classification and change detection of Chunati Wildlife Sanctuary (CWS) of Bangladesh using multi-temporal remotely sensed imagery
Kamrul Islam

Last modified: 2015-09-30

Abstract


Due to inappropriate management and absence of land use planning, land use change of developing country like Bangladesh is a common phenomenon. This land use change phenomenon will have its tremendous effect if found at a greater extent on natural habitat area for numerous animal and tree species. In this study, land use/land cover change of Chunati Wildlife Sanctuary (CWS) were assessed from (2005-2015) using Landsat TM (Thematic Mapper) and Landsat 8 OLI/TIRS (Operational Land Imager/Thermal Infrared Sensor). ArcGIS v10.1 and ERDAS Imagine v14 were used to process satellite derived imageries and assess other quantitative data for land use/land cover change assessment of this study area. Using supervised land use classification, it is found that almost 256 hectares of degraded forest area increased within 10 years of study period (2005-2015) with 25.56 % annual rate of change. About 159 hectares of naturally forested land have been changed to other land uses with an (-) 15.88 % annual rate of change demonstrating an alarming situation for this important habitat area. The overall supervised classification accuracy was found 92.16 % for 2015, 86.15 % for 2010, and 83.96 % for 2005 with Kappa value of 0.89, 0.82, and 0.81 for 2015, 2010, and 2005 respectively which is highly satisfactory.

Keywords: Land use/Land cover Change (LULCC), Remote Sensing (RS), Geographic Information System (GIS), Chunati Wildlife Sanctuary (CWS)