Technology Application |
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The Risk Analysis of Solid Waste of the Fujawu Copper Ore District Based on GeoEye-1 and DEM |
MENG Dan 1, ZHANG Zhi 1,2, FENG Wen 1
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1.Faculty of Earth Sciences, China University of Geosciences(Wuhan), Wuhan 430074, China; 2.Crustal Movement and Deep-space Exploration Department, National Remote Sensing Center, Wuhan 430074, China |
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Abstract The flow accumulation and catchment watershed of the Dexing copper ore district and the Fujawu copper ore district in Jiangxi Province were simulated by using 1∶50 000 DEM with the support of ArcGIS in this paper. Firstly,the authors divided the area into 2 watersheds named a and b respectively,then divided the watershed a into 3 small catchment watersheds. Supported by metallogeny and mining science,the authors used GeoEye-1 data of American satellite to make a quick survey of the solid waste in Fujawu copper ore district with the method of human-computer interaction,and found that the area is 2.105 km2. Then the authors made a spatial overlap on the distribution of solid waste and watershed delineation and found that, as the original topography of the site of solid waste has a large slope and a large thickness of accumulation,it poses a threat of debris flow to the residents in downstream areas like Yangcun and, what is more, because of the corrosion of surface water,the exposed wastes make a serious impact on the water quality of Jishui River as well as residents’ drinking water in downstream areas.
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Keywords
Remote sensing
CBERS-02
CCD data
ETM
Forest resources monitoring
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Issue Date: 17 June 2011
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