Fig 1.
Image of major mineralization belts and important large-scale ore deposit distributions in the Xizang region.
The image was created with ArcGIS 10.2, URL: http://www.esri.com/software/arcgis/arcgis-fordesktop. DEM data come from National Tibetan Plateau/ Third Pole Environment Data Center [33]. Geologic structure sketch is modified from ref [34,35].
Table 1.
Criteria and data sources within the ecological environment indicator system.
Fig 2.
Flowchart of the construction process of the ecological environment assessment system.
Table 2.
Ecological environment index and weights.
Fig 3.
Topographical factor evaluation and discrimination image of Xizang.
The images were created with ArcGIS 10.2, URL: http://www.esri.com/software/arcgis/arcgis-fordesktop. (a). DEM regional division. (b). Slope regional division. (c). Division of freeze-thaw erosion areas. (d) Terrain Comprehensive Evaluation Regional Division.
Fig 4.
Ecological factor evaluation and discrimination image of Xizang.
The images were created with ArcGIS 10.2, URL: http://www.esri.com/software/arcgis/arcgis-fordesktop. (a). Classification of dry and wet areal. (b). Vegetation Coverage Regional Division. (c). Land Use Type Regional Division. (d) Ecological Comprehensive Evaluation Regional Division.
Fig 5.
Functional zoning of mineral resource development in Xizang.
The image was created with ArcGIS 10.2, URL: http://www.esri.com/software/arcgis/arcgis-fordesktop.
Fig 6.
Distribution of resources in the mineral resource development functional areas of Xizang.
The image was created with ArcGIS 10.2, URL: http://www.esri.com/software/arcgis/arcgis-fordesktop.