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煤矸石是我国工业排弃数量最大的固体废弃物，它带来的危害是压占土地、破坏景观、污染环境。山西省作为能源重化工基地，煤矸石的堆积、污染问题尤为突出，改造任务异常艰巨。研究结果表明：煤矸石成山状堆积，仅表层１０ｃｍ左右有物理风化，下层很难风化；煤矸石山可蓄一定的水分，但地表高温，养分贫瘠，特别是自燃后的矸石强酸高盐，给植被恢复带来了极大的困难；大量煤矸石山的基本出路是进行林业复垦。其适用技术体系包括：①做好水保工程，保留地表黑色风化层；②引入先锋草种、树种；③薄盖土后直播；④加强施肥、病虫害防治等管理。
Coal gangue is the largest amount of solid waste that is discarded by China’s industry. The harm it brings is to occupy the land, destroy the landscape and pollute the environment. As an energy heavy chemical industry base in Shanxi Province, coal gangue accumulation and pollution problems are particularly prominent, and the task of reconstruction is extremely arduous. The results show that the coal gangue is mountain-like, only about 10cm in surface layer is physically weathered, and the lower layer is hard to weather. Gangue hill can store some water but high surface temperature and poor nutrients, especially the strong acid and salt of gangue after spontaneous combustion Vegetation recovery has brought great difficulties; a large number of coal gangue hill is the basic way for forestry reclamation. The applicable technical system includes: ① doing a good job in water conservancy projects, retaining the surface of the weathering layer of black; ② the introduction of pioneer grass species, tree species; ③ thin cover after live broadcast; ④ strengthen fertilization, pest and disease control and other management.