The spatial land cover
pattern of Dhaka city is restlessly altering as it has highest growing rates
among megacities. Due to high urbanization rates, land use is changing from
natural to man-made along with resource extractions that accelerate the land
cover changes. This study has evidently given the glimpse of the raising
concern by assessing the loss of vegetation coverage of Dhaka Metropolitan Area
using multi-temporal Landsat imageries. 20 years satellite data have been used
to detect the vegetation cover changes in Dhaka city with an interval of 10
years. Study reveals that 66.87 square kilometer vegetation coverage of Dhaka
Metropolitan Area is lost during the whole time period. The rate of loss of
vegetation coverage is very severe in Dhanmondi, Gulshan, Uttara, Demra,
Mirpur, Sabujbagh, Ramna, Mohammadpur, Kafrul, Shyampur and so on. The overall
precision of my Landsat-derived vegetation coverage maps is 92.5%.
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