【作者】 王勇生；

【Author】 Wang Yongsheng (College of Resource and Environmental Engineering,Hefei University of Technology,Hefei,230009)

【机构】 合肥工业大学资源与环境工程学院；

【摘要】 两淮煤矿开采造成的地表大面积塌陷和煤矸石在地表的堆积导致耕地面积急剧减少,生态环境遭到破坏,严重制约了矿区经济的发展。煤矸石回填复垦也会导致重金属元素对地下水的污染,而利用煤矸石非回填复垦则可以解决这些问题。由于煤矸石中重金属元素会对复垦土地中种植的农作物产生一定的污染,因而在复垦土地中应以种植经济作物为宜。污泥与化肥同时配合施用于煤矸石复垦土地上,可以很好的解决复垦土地的施肥问题。而在矸石山上覆盖薄层黄土种植豆科植物,即可解决矸石山上无灌溉条件下植物的生长问题,又可解决复垦种植中氮素缺乏的问题。更多还原

【Abstract】 The area of cropland decreased and environments were destroyed because of coal-mining collapse by coal extraction and accumulated of gangue,which restricted development of economy in colliery.In the course of reclamation by filled with gangue,heavy metal in gangue will contaminate environment and crop in soil by reclamation.So,the best way dealing with this gangue is non-filled reclamation.Because heavy metal elements of gangue can contaminate crop in the cropland from non-filled reclamation,economic crops should be grown in the cropland.The mud and fertilizer are mixed topdressed the cropland by non-filled reclamation,which can solve fertilizer of the reclamation cropland.Leguminous plants were cropped in reclamation cropland covered with folium loess,which can figure out the problems that plant developed without irrigation and the lack of Nitrogen in reclamation cropland.更多还原