Land use and land cover change detection at Mirzapur Union of Gazipur District of Bangladesh using remote sensing and GIS technology

7th IGRSM International Remote Sensing & GIS Conference and Exhibition

地球科学;计算机科学

Yesmin, R.^1 ; Mohiuddin, A.S.M.^1 ; Uddin, M.J.^1 ; Shahid, M.A.^2

Department of Soil, Water and Environment, University of Dhaka, Bangladesh^1

Bangladesh Space Research and Remote Sensing Organization (SPARRSO), Bangladesh^2

关键词: Land use and land cover;    Land use and land cover change;    Landsat TM images;    Population pressure;    Prominent features;    Remote sensing and GIS;    Resource management;    Spatial resolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/20/1/012055/pdf
DOI  :  10.1088/1755-1315/20/1/012055

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A study was conducted with a view to identify and quantify the changes in land use and land cover occurred during the last 20 years at Mirzapur Union of Gazipur district of Bangladesh using remote sensing and GIS technologies. Two LANDSAT TM images of 1989 and 2009 with 30mx30m spatial resolution were used to determine the temporal land cover changes. Subsequently, a ground verification was done in the study site. The study revealed that forest cover was decreased by 20.29 % and settlement area was found to increase by 28.64% and water bodies was decreased by 6.25 %. In the same period of time, bare land was found to increase by 20.91 % due to the effect of clearing of forest area which is not replanted again. A lot of new infrastructures has been built by this time. Population pressure becomes double enhancing the deforestation of Sal (Shorea robusta). Most prominent features are the emergence of brick fields and various industries. Thus, the above study demonstrated the usefulness of RS and GIS technology regarding resource management and urban planning.