Abstract:Based on the results of the Action Plan of Geological Survey of Land Quality (2016-2020) and Multi-purpose Regional Geochemical Survey in Zhejiang Province, the geochemical characteristics, spatial distribution and the main influencing factors of Ge both in top and deep soils of agricultural land in Wenzhou were studied, and the utilization prospect of Ge-rich soil was evaluated. The results show that, the average contents of Ge in top and in deep soils of the study area are 1.44 mg/kg and 1.62 mg/kg respectively, with the variation coefficients of 0.14 and 0.10 respectively, Ge spatial distributions in both top and deep soils are overall uniform, sharing the same spatial variation of weakly decreasing trend from southwest to northeast. The grade division results of Ge enrichment degree shows that the topsoil of agricultural land is mainly "weak dilution" and "background", indicating that it is generally less affected by human factors. Soil parent material is the most important factor affecting the content and distribution of Ge in topsoil of agricultural land, among them, the average contents of Ge in soils with the parent material of littoral sediments and sedimentary weathered rocks are generally higher than those with the parent material of fluvial and lacustrine sediments and igneous weathered rocks. Physical and chemical indexes such as organic matter and clay content, as well as land use type and planting structure are also important factors affecting Ge content. The results of Ge-rich grade classification show that the cultivated land area of “rich” and “relatively rich” grade Ge in the study area is 1 383.07 km2, accounting for 56.17% of the total cultivated land area. On this basis, 10 blocks with good utilization prospects of Ge-rich soils are identified, and their utilization prospects are evaluated.