ali taherzadeh

The extent of spread and source degradation would be determined using prediction of land use/ land cover changes. In this way these changes would be guided in the right directions. The aim of this study is modeling the process of land use / land cover changes of Hamedan province using Landsat TM satellite image of 1989 and IRS LISS III image of 2008.
After running the necessary corrections, land use/ land cover maps of the study area in the past two years were obtained using supervised classification with maximum likelihood algorithm. Then probability matrix of land use transition (to each other) were calculated using Markov chain with respect to land use/ land cover map. In the next step, Cellular Automata method was used to geo specified these changes.
Findings: Finally land use/ land cover map of Hamedan province for 19 years later (2024) was obtained and the area of each land use/ land cover was calculated.
Discussion and Counclusion: The results of this research shows that natural land use/ land covers will be decreased and transmited to human land uses in future. These changes are conceivable due to population growth and increasing human needs to exploit the nature; but this process should be considered to exploit the natural resources in a sustainable manner to avoid severe consequences in future.

During the time، land cover and as a result land use patterns go through fundamental changes and human factors can have the most important role in this process. Knowing these changes could be of great help to the future management of this region. According to this، the main purpose of this study is to monitor the land use-cover changes in the Hamedan province area during the three recent decades. Therefore، in order to discover the changes created in the study area، images of TM satellite sensor (1989)، ETM satellite sensor (2000) and LISS3 detector of IRS (2008) were processed. Then after performing needed preprocesses، the enhancements were performed and then by using supervised classification with Maximum likelihood method، land-use cover objective maps were prepared. These maps were compared with the Post classification comparison method in form of a couple in the first period between1989-2000 and the second period between 2008-2009. The results shows that the area of the land use-cover classes، rangelands and plain lands were decreased during the three decades and on the other hand water area، arid and residential-industrial area were increasing during this period. Woodland areas decreased during the first period and increased in the second period. However، farmlands’ area increased during the first period and decreased during the second one.