A Study on Remote Sensing Monitoring Land Use Change and Reclamation Measures of Subsided Land in Xuzhou Coal Mining Area
徐州矿区土地利用变化遥感监测及塌陷地复垦利用研究

With the use of TM imageries of Xuzhou in 1987, 1994 and 2000, the change maps of land use structure of relevant periods of its coal mining areas were compiled, and the classified land use type was divided into 6 kinds, i.e. the construction area, cultivated land, forestland, body of water, subsided land from coal mine and the other land. The situations of dynamic change of land use were analyzed comprehensively, the conversion matrix of land use structure about the different temporal classified TM imageries was interpreted, and the reclamation measures of subsided land were probed. The results indicate that: the area of subsided land due to coal mining was increasing and the speed of land reclamation did not catch up with that of land subsidence. Therefore, it is necessary to accelerate the force to the land reclamation. And from the view of technique, planning, fund and management, it is necessary to adopt the reclamation measures of subsided land, including mainly: (1) to adopt the suitable reclamation techniques; (2) to put forward a general scientific planning on subsided land reclamation of; (3) to construct an effective input mechanism of the reclamation of subsided land; (4) to establish a comprehensive organization to actualize the project of subsided land reclamation.