【摘要】 对浙江省29种母质和16种土类或亚类构成的69个母质-土类单元共194个土壤样品中的矿物成分进行测定,分析得出矿物种类及矿物百分含量。在此基础上分析了浙江省土壤矿物组成特征。不同土类或亚类土壤中矿物组成存在明显差异,矿物种数和含量变化较大。突出的特征是,相同母质类型土壤含有相似的矿物种类,而且相同母质不同样品中同一矿物含量变化也较小,表现出同母质土壤矿物组成与含量具有相似性。在69个土壤剖面中,由A层到C层矿物种类和含量变化较小,土壤矿物组成明显受基岩影响和控制。宜把地质背景相同、矿物组成相近、土壤环境相似的成土母质作为划分土壤重金属污染评价单元,土壤类型只能作为评价单元的辅助划分依据。更多还原

【Abstract】 The mineral compositions of a total of 194 soil samples collected from 69 parent material-soil units composed of 29 varieties of parent material and 16 soil types or subtypes in Zhejiang were analyzed,and their constituent mineral species and content were obtained. On that basis,the characteristics of the mineral composition were investigated. The results show that different soil types or subtypes of soil have markedly different mineral compositions,and that the number and contents of mineral species vary greatly. The outstanding characteristics are that soils with the same parent material types have similar mineral species,while the content of the same mineral in different soil samples with the same parent material shows small variation,showing the similarity in mineral composition and content of soils with the same parent material. The mineral species and contents in soil layer A to layer C at 69 sections vary little and the mineral composition of soils is apparently affected and controlled by bedrocks. It is advisable to take the parent material of soils with the same geological setting,similar mineral compositions and similar soil environments as an evaluation unit of heavy metal pollution of soils,and the soil types can only be used as a supplemental criterion for unit classification and evaluation.更多还原