干旱区铁矿磁选尾矿基重构土植物优选技术研究  

Study on Plant Optimization Technology of Magnetic Separation Tailings Base Reconstruction Soil in Arid Area

作　　者：牟英杰[1] 谭辉 徐庆荣 陈宏贵 周瑞[1] MU Yingjie;TAN Hui;XU Qingrong;CHEN Honggui;ZHOU Rui(Baotou Steel(Group)Mine Research Institute Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]包钢(集团)矿山研究院有限公司,内蒙古包头市014000 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2022年第3期191-194,共4页Modern Mining

基　　金：包钢白云鄂博铁矿排土场生态恢复技术研究项目(编号:20ZG054-KKN-40-0005)。

摘　　要：为了促进矿山及矿业废弃地的生态环境治理,针对矿业废弃地治理中存在的表土缺乏和植物重建问题,进行了室内重构土壤和植物优选研究。试验中将包钢磁选尾砂与白云鄂博生活污水处理厂发酵污泥按体积比10∶0、9∶1、8∶2配制重构土,并在13种植物中优选出最佳品种。试验结果表明:采用体积比9∶1的重构土中植物种数和平均高度优于其他配比,在3个配比中披碱草、碱茅均生长良好,可作为矿区治理优选植物,柠条、紫穗槐等灌木可采用人工栽植方式进行恢复;矿区生态恢复可利用矿业固体废物作为主要重构土材料,通过种植优选植物,在加强初期管理的基础上,达到矿区治理的效果。In order to promote the ecological environment control of mine and abandoned mining land,the optimization study of indoor reconstructed soil and plants was carried out in view of the existence of short⁃age of topsoil and the reconstruction of plants during mining wasteland management.In the experiment,the magnetic separation tailings of Baotou Steel and the fermentation sludge of Bayan Obo domestic sewage treat⁃ment plant were prepared by 10∶0,9∶1 and 8∶2 by volume,and 13 plants were selected for planting.The re⁃sults showed that the number of plant species and average height in the reconstructed soil with a volume ratio of 9∶1 were better than those in other ratios.Among the three kinds ratios Elymus elymus and Laliella alka⁃liella grew well,which could be used as the preferred plants for mining treatment.Shrubs such as Caragana korshinskii and Amorpha fruticosa shrubs can be restored by artificial planting.Therefore,some solid waste can be used to reconstruct the soil matrix for ecological restoration in the mining area,and the treatment ef⁃fect of the mining area can be achieved by planting selected plants and strengthening the initial management.

关 键 词：重构土 生态恢复 植物选择 

分 类 号：X171.4[环境科学与工程—环境科学] TD926.4[矿业工程—选矿]