浙江岱山县土壤耕作层锗分布特征及成因分析  

Distribution Characteristics and Causes of Germanium in Cultivated Soil of Daishan County,Zhejiang Province

作　　者：余朕朕 陈博渊 焦德智 王誉臻 YU Zhenzhen;CHEN Boyuan;JIAO Dezhi;WANG Yuzhen(Zhejiang Engineering Survey and Design Institute Group Co.Ltd,Ningbo,Zhejiang315012,China)

机构地区：[1]浙江省工程勘察设计院集团有限公司,浙江宁波315012

出　　处：《现代地质》2021年第6期1762-1768,共7页Geoscience

基　　金：岱山县自然资源和规划局项目“岱山县土地质量地质调查”(2017-01730)。

摘　　要：以2018年浙江省岱山县土地质量地球化学调查数据为基础,统计了不同成土母质、土壤类型、土地利用类型区土壤锗含量地球化学参数,分析了地球化学指标相关性和富锗成因,并依据相关标准划定了富锗土壤。结果显示岱山县耕作层土壤锗含量变化于0.95~1.92 mg/kg,均值为1.39 mg/kg,高于舟山市土壤锗背景值,变异系数0.13;研究区耕作层土壤锗高含量分布与细粒级滨海相沉积物关系密切,富锗土壤面积1950.47 hm^(2),占耕地总面积的48.68%,其中清洁富锗土壤占富锗土壤总面积的96.52%,主要连片分布在滨海平原区。该成果为后续应用研究提供了基础地球化学依据。Based on geochemical survey data of land quality in Daishan County of Zhejiang Province in 2018,this paper counts the geochemical parameters of germanium content in different parent material,soil type and land used type,analyzes the geochemistry index correlation and cause of forming germanium enrichment,and delineates the germanium rich soil according to the related standard.The results show that the content of soil germanium in cultivated layer of Daishan County is 0.95-1.92 mg/kg,the average value is 1.39 mg/kg,which is higher than the background value of soil germanium in Zhoushan City.The variation coefficient is 0.13.The enrichment of germanium in cultivated soil is closely related to fine⁃grained coastal sediments in the study area,germanium rich soil is 1950.47 hm^(2),which takes for 48.68%of the total cultivated land area,among them clean germanium rich soil account for 96.52%of the total area of germanium rich soil,mainly distributes in coastal plain.The achievement provides geochemical basis for further application research.

关 键 词：耕作层 锗 地球化学特征 相关性分析 浙江省岱山县 

分 类 号：P595[天文地球—地球化学] X142[天文地球—地质学]