高密地区灌溉水及土壤氟地球化学特征  

Geochemical characteristics of fluorine in irrigation water and soils in the Gaomi area,Shandong Province,China

作　　者：姜冰 刘阳 吴振 张德明 孙增兵 马健 JIANG Bing;LIU Yang;WU Zhen;ZHANG De-Ming;SUN Zeng-Bing;MA Jian(Shandong Provincial No.4 Institute of Geological and Mineral Survey,Weifang261021,China;Key Laboratory of Coastal Zone Geological Envi-ronment Protection,Shandong Geology and Mineral Exploration and Development Bureau,Weifang261021,China;College of Earth Science and En-gineering,Shandong University of Science and Technology,Qingdao266590,China)

机构地区：[1]山东省第四地质矿产勘查院,山东潍坊261021 [2]山东省地质矿产勘查开发局海岸带地质环境保护重点实验室,山东潍坊261021 [3]山东科技大学地球科学与工程学院,山东青岛266590

出　　处：《物探与化探》2023年第5期1348-1353,共6页Geophysical and Geochemical Exploration

基　　金：山东省地质矿产勘查开发局地质勘查引领示范项目(KC202207)。

摘　　要：为研究高密地区灌溉水及土壤氟的分布规律及影响因素,通过系统采样测试,获得了灌溉水pH值、氟化物含量及土壤pH、有机质、氟含量等数据,绘制了地球化学等值线图,进行了统计、相关性和差异性分析,探讨了影响因素。结果表明,研究区灌溉水氟化物含量均值为1.89 mg/L,空间变异性强,高值区分布在北部低平冲积平原区,大于2 mg/L的样本数占比63.16%,与水质pH值呈显著正相关(P<0.01);土壤氟含量均值为455×10^(-6),空间分布较不均匀,氟高和过剩的区域分布在研究区北部,土壤氟与土壤pH、有机质、灌溉水氟化物均呈显著正相关(P<0.01);砂姜黑土分布范围内,灌溉水氟化物含量和土壤氟含量高。本研究揭示了高密地区灌溉水氟化物和土壤氟的本底特征及影响因素,可为精准防治地方性氟中毒提供地球化学依据。This study aims to ascertain the distribution patterns and influencing factors of fluorine in irrigation water and soils in the Gaomi area,Shandong Province,China.Through systematic sampling and testing,this study obtained data including the pH and fluor-ide concentration of irrigation water and the pH,organic matter,and fluorine concentration of soils.Based on these data,this study plotted the geochemical contour maps for statistical,correlation,and difference analyses.Furthermore,this study explored the influen-cing factors.The results are as follows:(1)The irrigation water in the study area has a fluoride concentration of 1.89 mg/L on aver-age,which shows strong spatial variability.Zones with high fluoride concentrations in irrigation water are distributed in the northern low-flat alluvial plain,with the number of samples with fluoride concentrations greater than 2 mg/L accounting for 63.16%.There is a significant positive correlation between the fluoride concentration in the irrigation water and the pH(P<0.01);(2)The soils have a fluoride concentration of 455×10^(-6) on average,which shows an inhomogeneous spatial distribution.Zones with high or excess fluorine concentrations are distributed in the northern part of the study area.The fluorine concentrations of soils show significant positive corre-lations with the pH and organic matter of soils and the fluoride concentration of irrigation water(P<0.01);(3)The fluoride concen-trations in the irrigation water and soils are high in the distribution area of lime concretion black soil.The results of this study reveal the background characteristics and influencing factors of fluoride in the irrigation water and soils of the Gaomi area,providing a geochemi-cal basis for the precise prevention and control of endemic fluorosis.

关 键 词：灌溉水 土壤 氟 地球化学特征 高密地区 

分 类 号：X142[环境科学与工程—环境科学] S153[农业科学—土壤学]