CAJ | 학술논문

本研究分析了麻阳铜矿旧尾砂库、新尾砂库、废石场、矿脉地表露头区、尾砂库人工修复区以及废石场人工修复区等6个地类的土壤重金属污染现状，以及各地类土壤 pH 值、有机质含量以及植被组成情况.结果表明：麻阳铜矿废弃大部分地类均存在不同程度的 Cu 污染，新尾砂库和矿脉地表露头区达到重度污染，旧尾砂库达到中度污染，废石场达到轻度污染，而尾砂库人工修复区和废石场人工修复区基本无污染；铜矿废弃地各地类土壤 pH值均大于8，有机质含量均较低（0.12％～0.86％），但人工修复区肥力显著高于尾砂库和废石场；对比分析旧尾砂库与其人工修复区植被组成情况发现，前者只有零星几种植物的分布，而后者共调查到44种植物，主要以菊科、蓼科、禾本科、豆科、蔷薇科为主.人工修复区基本无重金属污染，且土壤肥力均有所改善，说明植物修复是铜矿废弃地土壤修复的有效途径.
본연구분석료마양동광구미사고、신미사고、폐석장、광맥지표로두구、미사고인공수복구이급폐석장인공수복구등6개지류적토양중금속오염현상，이급각지류토양 pH 치、유궤질함량이급식피조성정황.결과표명：마양동광폐기대부분지류균존재불동정도적 Cu 오염，신미사고화광맥지표로두구체도중도오염，구미사고체도중도오염，폐석장체도경도오염，이미사고인공수복구화폐석장인공수복구기본무오염；동광폐기지각지류토양 pH치균대우8，유궤질함량균교저（0.12％～0.86％），단인공수복구비력현저고우미사고화폐석장；대비분석구미사고여기인공수복구식피조성정황발현，전자지유령성궤충식물적분포，이후자공조사도44충식물，주요이국과、료과、화본과、두과、장미과위주.인공수복구기본무중금속오염，차토양비력균유소개선，설명식물수복시동광폐기지토양수복적유효도경.
This research studied the current situation of heavy metal pollution in old and new tailings ,waste rock piles , copper - outcropping ores ,artificial restoration areas of tailings and waste rock piles of Mayang copper mine .The pH value ,soil organic matter content and vegetation composition of each land were also investigated . Results showed that : most of abandoned copper mine lands had different degrees of copper pollution .New tailings and copper - outcropping ores reached heavy pollution , old tailings moderate pollution ,waste rock piles light pollution ,while the artificial restoration areas of tailings and waste rock piles had no pollution .The pH value of all the abandoned copper mine lands was greater than 8 ,and the soil fertility of each land was poor with the organic content from 0.12% to 0.86% .But the fertility of artificial restoration area was significantly higher than that of tailings and waste rock piles .Contrastive analysis of vegetation composition in old tailings and artificial restoration areas of old tailings indicated that there were several plants in the former land ,while the latter land distributed 44 kinds of plants which mainly belonged to Compositae , Polygonaceae , Gramineae , Legume and Rosaceae , etc . There was no metal pollution in artificial restoration areas and soil fertility was improved ,which indicated that phytoremediation was an effective way for soil remediation in abandoned copper mine lands .