Remote sensing monitoring of dynamic changes of surface environment in Shizuishan mining area
SHANG Hui1, NI Wankui1,2
1. College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China;
2. State Key Laboratory of Frozen Soil Engineering, Lanzhou 730050, China
In this paper, aerial images of the 1970s, SPOT5 satellite images of 2003 and RapidEye images of 2009 were respectively selected to establish interpretation keys based on field survey data. Then three phase remote sensing images with different sensors were interpreted by ArcGIS, and land change maps from 1970s to 2003 and from 2003 to 2009 were obtained by overlapping interpretation results. The change and mutual transformation of lands were analyzed, and their change rules and causes were obtained. The analytical results are summarized as follows: Firstly, from 1970s to 2003, the main change of lands in the Shizuishan mining area was that the vegetation coverage area and the cultivated land were transformed to residential area and wasteland as a result of infrastructure construction and soil erosion. In addition, the areas of gangues, coal piles and water increased because of mining activities. Secondly, the area of vegetation coverage showed the fastest increasing rate from 2003 to 2009. On the contrary, the areas of surface features of the mine, such as gangues and coal piles, decreased sharply, which was closely related to integrated renovation of the mining geo-environment.
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2013, Vol. 25 
