一、露天矿排土场对环境的破坏及环境保护对策 目前,全世界的绝大部分矿物产量是露 天矿提供的,这是因为露天开采较之地下开 采有多方面的优越性。然而,露天开采条件 下剥离岩石排土场要占用与破坏大片土地, 其中包括大量农业用地。这不但破坏了国家 的土地资源和开采地区的植被条件,还会破 坏所在地区的生态平衡和自然景观的协调 性,其表现形式主要有: 大量含硫化物和重金属离子的剥离岩石 I. Environmental damage and environmental protection measures in opencast dumps At present, most of the world’s mineral production is provided by open-pit mines because open-pit mining has many advantages over underground mining. However, stripping rock dumps under opencast mining conditions and destroying large areas of land, including large amounts of agricultural land. This not only undermines the country’s land resources and the vegetation conditions in the mined areas, but also undermines the ecological balance and the coordination of the natural landscape in its area. The main manifestations are: a large number of pealed rocks containing sulphide and heavy metal ions