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采用样地调查法,对紫金山金铜矿废弃地2003年以来进行的植被生态恢复情况进行调查,分析紫金山矿山开采前后植被恢复覆盖度和物种多样性;结合测定恢复地重金属污染情况,综合评价紫金山矿区废弃地生态恢复效果。结果表明:紫金山金铜矿矿区生态植被群落恢复中,乔木层覆盖度和物种多样性均较少;灌木层恢复较好,物种已达到12种;草本层覆盖度和物种多样性都呈上升趋势;土壤重金属污染程度明显降低,生态恢复效果较为显著。
By means of sample survey, the ecological recovery of vegetation in Zijin Mountain gold-copper mine abandoned land since 2003 was investigated to analyze the vegetation coverage and species diversity before and after the mining of Zijinshan Mine. Combined with the determination of heavy metal pollution in the restoration land, Evaluation of Zijinshan mining wasteland ecological restoration effect. The results showed that in the recovery of ecological vegetation in the Zijinshan gold-copper mine, there was less arbor layer coverage and species diversity, shrub layer recovery was better, the species had reached 12 species, herb layer coverage and species diversity increased Trend; soil heavy metal pollution decreased significantly, the effect of ecological restoration is more significant.