水泥粉尘对工业区土壤磁学性质影响及其环境意义（英文）  

Magnetic Influences of Cement Dust on Soil in Industrial Area and Its Environmental Implications

作　　者：李勇 赵应权[2] 姚洁[1] 

机构地区：[1]安徽科技学院电气与电子工程学院,安徽凤阳233100 [2]成都理工大学沉积学院,四川成都610059

出　　处：《地球科学进展》2016年第8期829-839,共11页Advances in Earth Science

摘　　要：为监测水泥粉尘对工业区土壤的影响,在水泥工业区内采集了水泥粉尘、降尘、水泥、粉煤灰、厂内绿地表土及厂周围旱地表土等样品,采用环境磁学方法进行磁学参数测量与矿物成分分析。结果显示所有样品中主要磁性矿物都是磁铁矿,水泥粉尘、水泥厂降尘、水泥、粉煤灰等样品中磁性矿物粒径较粗,主要是准单畴和多畴。被水泥粉尘和降尘污染的厂内绿地表土和厂周围旱地表土的磁学性质发生了明显改变,磁性矿物含量升高,磁性矿物粒径变粗。X射线衍射结果显示,被污染后的厂内绿地表土和厂周围旱地表土中主要矿物成分与水泥粉尘相同,都是石英和方解石。研究发现,土壤的磁学参数(χ_(fd),χ_(ARM)/χ,χ_(ARM)/SIRM)值能反映土壤被污染的程度,其值越低,表示土壤被污染越严重。因此,利用水泥工业区旱地表土磁学参数组合特征,可以监测水泥工业区土壤环境变化。To monitor environmental implications of cement dust on soil in industrial area,magnetic parameters and mineral compositions were measured by the samples of the cement dust,cement factory dustfall,cement,coal ash,topsoil of green space in the factory and topsoil outside the factory. Results showed that the major magnetic minerals in the samples were magnetite,the magnetic mineral particle size of cement dust,dustfall,cement and coal ash was coarse Multi-Domian（ MD） and Pseudo-SingleDomain（ PSD）. As topsoil of green space in the factory and topsoil outside the factory were polluted by cement dust,their magnetic properties had been obviously changed; the concentration of magnetic minerals elevated and particle size became coarser. The magnetic parameters（ χfd,χARM/ χ,χARM/ SIRM） value can reflect the pollution level of the soil,the lower its value was,the more serious soil was polluted. X-ray diffraction results showed that the mineral compositions of the topsoil of green space in the factory and topsoil outside the factory were quartz and calcite,which were the same as cement dust. Magnetic parameters combination characteristics of topsoil can monitor the soil environmental changes in cement industry area.

关 键 词：水泥粉尘 土壤 磁学性质 环境意义 

分 类 号：P951[天文地球—自然地理学]