Azmat, A., Jamil Hasan Kazmi, Atif Shahzad and Saima Shaikh 2020. Mapping Change in Spatial Extent and Density of Mangrove Forest at Karachi Coast Using Object Based Image Analysis . International Journal of Economic and Environmental Geology. 11, 01 (Mar. 2020), 118–122. DOI:https://doi.org/10.46660/int.j.econ.environ.geol. v11i01.881.