Research on Land Utilization Change of Feicheng Mine Area Based on ENVI

摘要

Based on the six remote sensing images from 1986 to 2006, the corresponding interpreted signs of main land utilization types are set up, and the related information are extractted using ENVI technology, then the land use change cases are got. The result shows that because of the increasing of population and the development of agricultural techniques, a large number of woodlands are converted into cultivated lands. Farmland area has increased 1991.97 hm2., demonstrating a growth rate of 46. 12% while the forest land area reduced 2847. 6hm2 and the reductive rate is 70.94%. As the better land consolidation measures, the subsidenced waters area is not added greatly. The coal mine area is increased, but only 15. 3%.