抚顺红透山铜矿区土壤质量评价

On the Evaluation of Soil Environment Quality in Hongtoushan Copper Mine Area in Fushun

通过对红透山铜矿区内排土场、尾矿库以及周边地区的土壤进行调查取样,应用模糊数学方法建立模糊综合评价模型对土壤重金属污染和土壤营养状况进行分析研究,为以后的污染治理和土地复垦提供依据,进而有针对性地全面开展生态修复工作.模糊综合评价结果表明:排土场、尾矿库土壤中的重金属重度污染,周边土壤中重金属中度污染.排土场最缺乏全钾和有机质,土地复垦时考虑客土并注意施加钾肥;尾矿库最缺乏的土壤营养元素为速效氮,土地复垦时应着重考虑施加氮肥或者种植固氮植物.

The heavy metal pollution and nutritional conditions of the soil in the Hongtoushan Copper Mine Area were investigated and analyzed via developing a fuzzy comprehensive evaluation model and sampling the soil from waste dump and tailing deposit, with the aim of providing basic reference for the pollution control and land reclamation in future and, further, for the overall ecological restoration of the polluted area. The fuzzy evaluation results showed that the heavy metal pollution of the soil under waste dump and tailing deposit is terribly serious, and that of the soil around the two sites is less serious. In view of nutritive elements, what the soil under waste dump lacks most is total potassium and organic matters, and the potassium fertilizers will be necessary with extra soil incorporated during land reclamation. As to the soil of tailing deposit, what it lacks most is the readily available nitrogen fertilizer which will be indispensable during land reclamation with the nitrogen-fixation vegetation planted.