The influence of mining exploitation on environment and the solution of the disposal of solid waste residue
By the year of 2012, China has 8557 State-owned mining enterprises and over 200 thousands individually owned enterprises. The area of destroyed land in mining area adds up to 29 thousand km^2 and grows at the rate of 2% each year (Liao L-P, Gao.H and Yu X-J, 2012). The mining industry has scored tremendous achievements, but meanwhile it threatens the environment. Some individually owned enterprises lack the awareness of environmental protection and take no preventive measure to lower their cost. Furthermore, out-of-date equipment and poor technology cause huge waste in production, which cause serious environmental pollution.
The destruction on land resources
Strip mining and the piling of tailings and waste residue occupies and destroys large land. In china, the waste-occupied land in mining area adds up to 59 thousand km^2 and the resulting deforestation area adds up to 11 thousand km^2 (Ma X-Q, Huang B-L, 2010). Strip mining can result in the destruction of land surface and Land Subsidence and accelerate the water and soil losses. According to official statistics, by the year of 2011, in the mining area of western China, the Soil erosion area annually increases 20 km^2.
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