[Retracted] Mine Geological Environment Monitoring and Risk Assessment in Arid and Semiarid Areas

Table 1

Data type and acquisition.

Data type	Acquisition time	Data use	Data sources
Landsat TM	August 2010	Obtain land-cover change information	USGS
Landsat TM	September 2010
Landsat TM	October 2010
Landsat OLI	January 2015