贵州省仁怀市耕地土壤富锗地球化学特征分析

樊洪富; 白培荣; 廖铸敏; 陈兴; 吴开彬

樊洪富,白培荣,廖铸敏,陈兴,吴开彬.贵州省仁怀市耕地土壤富锗地球化学特征分析[J].贵州地质,2023,40(3):233-240, 248

贵州省仁怀市耕地土壤富锗地球化学特征分析

Geochemical Characteristics of rich Germanium Soil in Cultivated Land in Renhuai City，Guizhou Province

投稿时间：2023-02-17

DOI：

中文关键词: 富锗耕地土壤地球化学特征成因分析仁怀市

英文关键词:Germanium-rich cultivated soil Geochemical characteristics Cause analysis Renhuai city

基金项目:省级项目“贵州省仁怀市耕地质量地球化学调查评价”(黔地矿耕调2017-28)资助。

作者	单位
樊洪富	贵州省地质调查院，贵州贵阳550081
白培荣	贵州省地质调查院，贵州贵阳550081
廖铸敏	贵州省地质调查院，贵州贵阳550081
陈兴	贵州省地质调查院，贵州贵阳550081
吴开彬	贵州省地质调查院，贵州贵阳550081

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中文摘要:

为了查清耕地表层土壤中锗特色元素的分布特征及富集机理，通过对贵州省仁怀市耕地土壤野外调查、采样和测试等研究分析，总结了锗元素含量的地球化学特征和影响因素，探讨了土壤类型、土地利用方式、土壤地球化学性质、成土母岩时代与锗含量的关系，结果表明，仁怀市耕地土壤锗元素平均含量与贵州省土壤背景值及中国土壤平均值相比，含量均高，高含量区域主要分布在寒武纪、二叠系、三叠纪地层母质区中。综合分析，土壤中Ge与pH值呈弱负相关，与SOM、Co 、Zn呈弱正相关性，与Cu、Pb呈中等程度正相关；酸性土壤富锗概率大于中性碱性环境；不同土地利用类型中，裸地、水浇地中Ge元素含量平均值较高；不同土壤类型中，石灰土、水稻土中Ge元素含量平均值较高；研究区内铅锌带与耕地土壤Ge元素高值分布带较为一致。

英文摘要:

In order to find out the distribution characteristics and enrichment mechanism of Germanium in cultivated surface soil，the geochemical characteristics and influencing factors of Germanium content were summarized through field investigation，sampling and testing of cultivated soil in Renhuai city，Guizhou provinceThe relationship between Germanium content and soil type，land use mode，soil geochemical properties，soil parent rock age and germanium content was discussedThe results showed that the average Germanium content of cultivated soil in Renhuai was higher than the background value of soil in Guizhou province and the average value of soil in ChinaThe high content area was mainly distributed in the parent material area of Cambrian，Permian and Triassic strataComprehensive analysis shows that Ge in soil is weakly negatively correlated with pH，weakly positively correlated with SOM，Co and Zn，and moderately positively correlated with Cu and PbThe probability of germanium enrichment in acidic soil is higher than that in neutral alkaline environmentIn different land use types，the average Ge content in bare land and irrigated land is higherIn different soil types，the average Ge content in calcareous soil and paddy soil was higherThe Pb - Zn zone in the study area is consistent with the high Ge element distribution zone in cultivated soil

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