Analyzing land cover and landscape pattern change in coal mining area

Based on the principle of land cover/land use, the landscape ecology and Support Vector Machine(SVM), it was proposed that three temporal(the year of 2000, 2005, 2010) remote sensing TM/ETM+ images of western Xuzhou coal mining area was classified, then analyzed and quantified the dynamic variation rules of the land cover change and landscape pattern combining the Remote Sensing(RS) with Geographic Information System(GIS). The following results are obtained that the cropland always is the mainland cover type of the mining area during the ten years, then the construction land, therefore the transformation between the two types and other types are the main part of the mining area. The most of land cover change and annual rate change is unused land, thus become an important part of the mining area; the area of construction land and unused land is first decreased and then increased, on the contrary with the cropland and water. The increasing of water is chiefly transformed from the mining subsidence water. The woodland is least unchanged from 2000 to 2005 but increases from 2005 to 2010. The landscape type of the construction land, cropland the unused land in the mining area are changed from large fragmentation to small fragmentation, and then small fragmentation to large fragmentation between 2000 and 2010. The aggregation achieves the highest in 2005, so diversity index is continually increased and the ecosystem of mining area is turning to the diversification and homogenization.