浙江省泰顺县富锗土壤地球化学特征及成因分析

Geochemical Features of Germanium-Rich Soils and Its Causes of Taishun County, Zhejiang Province

摘要: 基于泰顺县土地质量地质调查项目，对泰顺县全区进行1:5万土壤地球化学采样，并采用现代分析测试手段进行高精度土壤锗的富集、分布研究，对特色土地资源开发利用具有重要意义。泰顺全县面积1768.03 km²，此次调查采集表层土壤样品3497件，研究区表层土壤中锗元素含量为0.9~3.78 mg/kg，平均值为1.50 mg/kg，高于世界土壤锗的平均含量，略低于中国平均土壤锗的含量，与温州市的土壤锗的背景值基本一致。表层土壤中锗元素表现出明显的空间分布规律，在水平上主要以片状分布在研究区东北部，研究区西南部锗元素含量相对较低，其他区域零星分布。研究区不同的成土母质、土壤类型、人类活动、地形地貌对土壤锗含量均有着不同程度的影响。

Abstract: Based on the geological survey project of land quality in Taishun Country, 1:50,000 soil geochemical sampling wa scarried out in the whole district of Taishun Country, and modern analysis and testing methods were used to study the enrichment and distribution of high-precision soil germanium, which is significant for the development and utilization of characteristic land resources. Taishun County covers an area of 1768.03 km², and 3497 surface soil samples were collected in this survey. In the area of study, the content of germanium in the surface soil was 0.9~3.78 mg/kg, with an average of 1.50 mg/kg, higher than the world average and slightly lower than the Chinese average, which was basically consistent with the background value of germanium in the soil of Wenzhou. In the surface soil, the germanium shows an obvious spatial distribution pattern. On the horizontal level, germanium is mainly distributed in flakes in the northeast of the study area. The content of germanium is relatively low in the southwest of the study area, and scattered in other areas. Different parent materials, soil types, human activities, topography and geomorphology in the study area affect the content of germanium in soil to different degrees.