砂石矿区植草复绿技术研究

Research of Regreening Technology in Sandstone Mining Area

金昌市河东砂石矿主要生产井下充填用棒磨砂,矿区历经三十年的采矿活动,对原始地貌景观破坏程度较大,大量地表植被遭到损毁,化学沉淀池产生的尾泥堆破坏了土壤成分,造成土壤理化性质变坏、养分丢失、土壤肥力差等现象。本文针对砂石矿区自然地理条件、土壤性质和因尾泥渣造成的不良土壤问题,开展矿区植草复绿技术研究,经实地踏勘和查阅相关文献资料研究,提出了符合矿区实际情况的两种有效土壤改良技术,以及矿区原生植物培育移栽的复绿技术,研究结果表明可在一定程度上加快矿区的植被覆盖率。

The Hedong sandstone mine in Jinchang mainly produces rod sand for underground flling.After 30 years of mining activities in the mining area,the original landform and landscape have been severely damaged,a large number of surface vegetation have been damaged,and the tailings generated by the chemical sedimentation tank have destroyed the soil components,resulting such phenomena including deterioration of soil physical and chemical properties,nutrient loss,poor soil fertility.Therefore,in view of the natural geographical conditions,soil properties and bad soil problems caused by tailings in the sandstone mining area,this paper proposes to conduct a research on regreening technology adopted in mining area.Two fective soil improvement methods and the regreening technology focusing on cultivating and transplanting native plants in the mining area are proposed after conducting a reconnaissance and a literature research,and research results show that the vegetation coverage of the mining area can be accelerated to a certain extent.