关键词: 土壤锗含量, 地球化学特征, 影响因素, 常山县

Abstract:

Through the investigation and study of surface soil in Changshan County, western Zhejiang Province, the characteristics of germanium content in soil have been identified for the first time. The content of germanium in the surface soil of the study area ranges from 0.87 mg/kg to 5.59 mg/kg, with an average of 1.59 mg/kg, which was slightly lower than the value of the Chinese soil(1.70 mg/kg). The average content of germanium in surface soil of different parent materials is slightly different, ranging from 1.50 mg/kg to 1.73 mg/kg. The content of germanium in granite weathering is the highest, quartz sandstone weathering is the lowest, and germanium content in other parent materials is close. The content of germanium in different soil types ranges from 1.45 mg/kg to 1.62 mg/kg, with the highest germanium content in yellow earth and the lowest in fluvo-aquic soil. Germanium content in other types of soils range from 1.51 mg/kg to 1.61 mg/kg. The germanium content of sandstone, siltstone and mudstone with higher argillaceous content is higher, reaching 1.75-1.95 mg/kg, while the germanium content of dolomite and limestone is lower, only 0.12-0.20 mg/kg. The large scale distribution of sandstone, mudstone and siltstone which are high germanium content in Changshan County is the main reason for the relatively high germanium content in soil.

Key words: germanium content in soil, geochemical feature, influence factor, Changshan County