College of Geo-Exploration Science and Technology��Jilin University��Changchun 130026��China

The study examines the changes of land cover /use resources for the period under investigation�� An unsupervised vegetation classification is being performed that provides five distinctive classes and thus assesses these changes in five broad land cover classes-high /moist forests��forest regrowth��mixed savanna��bare land / grass and water�� The remote sensing images used in this work are both images of TM and ETM + in different time periods ( 1986 to 2001) to determine land cover /use changes�� A fairly accuracy report is recorded after performing the unsupervised classification��which shows vegetation has been depleted for over the years�� Changes created are mostly human and to a lesser extent environment�� Human activities are mainly encroachment thus altering the landscape through activities such as population growth��agriculture��settlements��etc�� and environment due to some perceive climatic changes�� This vegetation classification highlights the importance to acquire and publish information about the country's partial vegetation cover and vegetation change including vegetation maps and other basic vegetation influencing factors��leading to an understanding of its evolution for a period��