【摘要】 为了减少采矿废弃地重金属元素的流失,保护矿区周围居民饮食安全和生态安全,通过比较分析国内外矿山重金属污染土壤修复技术与修复实践,发现植物稳定技术能提高植物适应性并改善其生存环境;调控微生物、化学添加剂等因素,将强化植物提取的效果,促进耐性植物对重金属元素的吸收.提出矿区生态修复应在矿山废弃地中心采用植物稳定技术,在矿区外围采用植物提取和植物-微生物-化学联合修复来逐步减少矿山土壤重金属含量,进而达到彻底修复矿山生态的目的.更多还原

【Abstract】 To reduce the loss of heavy metals in mining wasteland and to protect food safety and ecological security of the residents surrounding the mines,by comparing with remediation techniques and practices of heavy-metal-contaminated soils in domestic and foreign mining regions,it was found that phytostabilization could improve the adaptability and the survival environment of the plants,Factors such as microbe manipulation and chemical additives would strengthen phytoextraction and promote absorption of heavy metal to tolerant plants.It is proposed that phytostabilization techniques should be adopted in the center of waste mine land,phytoextraction and the combination of plant-microbial-chemical techniques should be adopted in its peripheral to decrease heavy metals of heavy-metal-contaminated soils in mining area,so as to restore the ecological environment thoroughly.更多还原