Geochemical characteristics of fluorine in irrigation water and soils in the Gaomi area, Shandong Province, China
JIANG Bing1,2,3(), LIU Yang1, WU Zhen1,2, ZHANG De-Ming1, SUN Zeng-Bing1,2, MA Jian1
1. Shandong Provincial No.4 Institute of Geological and Mineral Survey, Weifang 261021, China 2. Key Laboratory of Coastal Zone Geological Environment Protection, Shandong Geology and Mineral Exploration and Development Bureau, Weifang 261021, China 3. College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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 fluoride 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 influencing factors. The results are as follows: (1) The irrigation water in the study area has a fluoride concentration of 1.89 mg/L on average, 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 correlations with the pH and organic matter of soils and the fluoride concentration of irrigation water (P < 0.01); (3) The fluoride concentrations 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 geochemical basis for the precise prevention and control of endemic fluorosis.
姜冰, 刘阳, 吴振, 张德明, 孙增兵, 马健. 高密地区灌溉水及土壤氟地球化学特征[J]. 物探与化探, 2023, 47(5): 1348-1353.
JIANG Bing, LIU Yang, WU Zhen, ZHANG De-Ming, SUN Zeng-Bing, MA Jian. Geochemical characteristics of fluorine in irrigation water and soils in the Gaomi area, Shandong Province, China. Geophysical and Geochemical Exploration, 2023, 47(5): 1348-1353.
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