红透山铜矿尾矿库复垦适宜性评价研究

Reclamation Suitability Evaluation of the Tailing Pond in Hongtoushan Copper Mine

尾矿库土地复垦适宜性评价是土地复垦方案编制的重要组成部分。从尾矿库复垦适宜土地类型选择的原则,影响重污染尾矿库复垦方向的地形坡度、有效土层厚度、排灌水条件、基底污染、稳定性、土壤质地、pH值、含盐量、土地成片面积等13个因子出发,采用综合偏差率方法,对宜旱田、宜园、宜林、宜牧草4个方向进行评价,得出影响红透山尾矿库各评价单元复垦方向的总偏差率。比较合理的复垦方向主要为二级或三级牧草地,三级林地,为保护矿区环境,主要复垦方向应选择牧草地和灌木型林地,主要的限制性因子为污染、基底的稳定性、土壤质地。研究成果为尾矿库复垦及后期规划设计提供了参考。

Land reclamation suitable assessment of tailing pond is an important part of the land reclamation proposals.According to the principle of tailings reclamation appropriate land type selection,the factors that could influence heavy pollution tailings reclamation,including slope,soil layer thickness effective terrain,irrigation and drainage water conditions,basal pollution,stability,soil texture,pH value,salt concentration,land area.The integrated error rate method is used to evaluation the tailing pond from suitable for glebe,suitable for garden,suitable for forest land,suitable for grass land.According to the calculation get the total deviation rate of the each evaluation unit reclamation in the Hongtoushan,and the more reasonable reclamation direction mainly is the level second or third grassland,level third woodland.To protect the mining area environment,Main reclamation should choose the grassland and shrubs type woodland.The main restrictive factors are pollution,basal stability,soil texture,that could provide reference for the design of the tailings reclamation and the late planning.