6Venkataraman G, Kumar S P, Ratha D S, et al. Open cast mine mo- nitoring and environmental impact studies through remote sensing-a case study from Goa, India [J]. Gencarto International, 1997,1 2 (2) :39-53.
7Fischer C, Busch W. Monitoring of environmental changes causedby hard-coal mining [ C ] //International Symposium on Remote Sensing. [ S. l] : International Society for Optics and Photouics, 2002 : 64 -72.