山东省桓台地区土壤F的地球化学特征及其影响因素  

Geochemical characteristics and influencing factors of soil fluorine in the Huantai area of Shandong Province

作　　者：侯拓 冯海艳[1] 杨忠芳[1] 王增辉[2] HOU Tuo;FENG Haiyan;YANG Zhongfang;WANG Zenghui(School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China;Shandong Geological Surveying Institute,Jinan 250013,Shandong,China)

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]山东省地质调查院,山东济南250013

出　　处：《地质通报》2021年第9期1584-1591,共8页Geological Bulletin of China

基　　金：山东省国土资源局项目《山东省中南部地区农业生态地球化学调查及全省总结》(编号:鲁国土资字[2011]1184号2-5-2014-35)。

摘　　要：为研究土壤氟的地球化学特征及其影响因素,选取山东省桓台地区为研究区,系统采集了70件表层土壤样品,并测试分析了其中F元素、有机碳含量、pH值等共计8项指标。绘制了元素地球化学图,掌握了该区F元素含量的空间分布特征。研究结果表明,表层土壤F含量范围为466.30~793.40 mg/kg,平均F含量为621.31 mg/kg,显著高于山东省背景值和全国背景值,具有潜在环境生态风险。研究区总面积70%的土壤F含量较高,其中F含量过剩的土壤相对集中分布在城镇附近;研究区东南部青银高速附近和北部呈零星分布的土壤中氟为适中及边缘含量水平。土壤中F含量主要受控于土壤pH、有机碳含量和施肥。该研究结果为改善研究区环境质量,防止地方性氟中毒提供了基础数据和科学依据。In order to investigate the geochemical characteristics and influencing factors in the Huantai area of Shandong Province,a total of 70 topsoil samples were collected and a total of 8 indicators including fluorine,organic matter and pH etc.were analyzed.Based on the geochemical map of the fluorine element,the spatial distribution characteristics of the fluorine content in the study area were studied.The results show that fluorine contents of analyzed samples range from 466.30 to 793.40 mg/kg,with the average value of 621.31 mg/kg,which is significantly higher than the background value of the Shandong Province and national levels.The study area has potential environmental and ecological risks.The area of soil with high fluorine content accounts for about 70%of the total area.The soil with excess fluorine content is concentrated in the vicinity of towns.The fluorine is moderate and the marginal content is distributed in the vicinity of Qingyin Highway in the southeast of the study area and in the northern part.The fluorine contents in the soil are mainly controlled by pH,organic carbon contents and fertilization.This study can provide basic data and the scientific approach for improving environmental quality and preventing endemic fluorosis in the Huantai area.

关 键 词：土壤 氟 地球化学 影响因素 山东桓台 

分 类 号：P595[天文地球—地球化学] S158.3[天文地球—地质学]