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在露天开采矿床时,建设现代化的大型露天矿,会使适于农业生产的耕地遭到严重的破坏。建设这样的露天矿必然会产生大量的,达数千万立方米的矿山开拓剥离物,这样剥离物堆积在外废石场切割堑沟的非工作边帮,所占的面积几乎超过开拓堑沟和切割堑沟的上部面积1/2。例如,在奥尔忠尼启则采选联合公司的七个露天矿废石场所占的土地面积中,矿山开拓巷道排土占地468公顷,外部废石场占地902公顷。废石场的边坡,保护段和安全带白白占用了农田。自然,在这种情况下,用于賠偿土地,矿山技术和生态恢复工作的费用会大大加
In open-pit mining, the construction of modern large-scale surface mines will severely damage the arable land suitable for agricultural production. Construction of such open-pit mines will inevitably produce a large number of tens of millions of cubic meters of mines to develop stripping material, so that the accumulation of stripping material in the outer waste rock cutting trench non-working edge, accounting for almost the area to open up trenches and Cutting the upper area of the trench 1/2. For example, out of the total land area occupied by the seven open pit mines at Ordos Kai Tak Joint Stock Company, mined roadways cover an area of 468 hectares and an external waste rock plot covers an area of 902 hectares. The rocky slope, the protection section and the safety belt occupied the farmland in vain. Naturally, under such circumstances, the cost of compensating for land, mining technology and ecological rehabilitation will be greatly increased