摘要
以桂林市灵川县含硫铅锌矿区为研究对象,研究采矿过程中地表河流水Pb、Zn等重金属及SO42-以及碳汇量的变化,结果发现:(1)河流中的Pb、Zn等重金属受降雨因素影响较大,降雨的冲刷作用使得河水中的Pb、Zn含量明显增加,之后慢慢被稀释,特别是暴雨稀释效应明显;(2)人类对含硫铅锌矿的开采与搬运,使得大量的硫铅锌矿被搬运而导致河水中的SO42-含量减少;(3)人类对矿产的开采,地质碳汇明显减少,其减少量约为原来的一半。
Taking the Pb-Zn sulfide minerals mining area in Lingchuan county, Guilin city as the research object, the changes of heavy metals Pb,Zn,etc. ,SO4^2- and carbon sinks in the river water during mining operation were studied. The results showed that： （1） the contents of heavy metals Pb, Zn,etc. in the river water were affected greatly by rainfall, and obviously increased due to the scouring effect of rainfall, then were slowly diluted, especially the dilution effect of heavy rain was obvious; （2） the minerals exploitation made large amounts of Pb-Zn sulfide minerals be handled by human,which caused the reduce of SO4^2- content in the river water; （3） Because of the exploitation of mineral resources, the geological carbon sink decreased,and its decrement was about half of the original amount.
出处
《矿业研究与开发》
CAS
北大核心
2013年第3期89-92,共4页
Mining Research and Development
基金
国家自然科学基金项目(40872213)
中国地质调查局工作项目(水[2011]矿评01-15-02)
水生藻类岩溶碳汇研究基金项目(KDL2012-04)
关键词
铅锌矿开采
水环境
地质碳汇
Lead- Zinc minerals mining, Water environment, Geological carbon sink
