Study on the interaction between heavy metal elements and other elements and bioavailability in the soil-maize system in Eastern Yinan of Shandong Province
KANG Pengyu1, ZHANG Yong1, XIAO Bingjian1,2,3, LIANG Cheng1, JIAO Yongxin1, WANG Kaikai1
1. No.7 Geological and Mineral Exploration Institute, Shandong Linyi 276006, China; 2. Shandong Key Laboratory of Diamond Metallogenesis and Exploration, Shandong Linyi 276006, China; 3. Academician Workstation of “Shandong Diamond Metallogenesis and Exploration”, Shandong Linyi 276006, China
Abstract：In the background of high levels of heavy metal elements in Eastern Yinan, the authors collected 50 maize seed and root soil samples to investigate the interaction and bioavailability of heavy metal elements and trace elements closely related to human health in the soil-maize system. The content and enrichment characteristics of heavy metal elements and trace elements in the samples were statistically analyzed, and the interrelationship among the elements in maize seed and the root soil was explored through content analysis. The distribution patterns of heavy metal elements in maize roots, stems, leaves, seeds, and root soil were summarized and the safety of maize seeds was evaluated, by analyzing the content of heavy metal elements in corn roots, stems, leaves, seeds, and the forms of heavy metal elements in root soil. The results show that a significant difference of element content exists between maize root soil and maize seeds, and the enrichment coefficients of elements in maize seeds show significant- extremely significant positive correlation. As, Ni, Se in maize seeds have an antagonistic effect on the element content in the soil, while there is a synergistic effect among the elements in maize seeds. Cu, Zn, Cd, and Hg are mainly enriched in leaves, while heavy metals Cr, Pb, Ni, and As are mainly enriched in roots. All the samples meet the relevant standards of green and pollution-free except one maize seed sample, indicating the good safety level of maize seeds in the study area. This study could provide geological support for high-quality agricultural development and comprehensive soil pollution control.
康鹏宇, 张勇, 肖丙建, 梁成, 焦永鑫, 王凯凯. 山东沂南东部土壤-玉米系统重金属元素与其他元素间相互作用及其生物有效性研究[J]. 中国地质调查, 2024, 11(1): 105-113.
KANG Pengyu, ZHANG Yong, XIAO Bingjian, LIANG Cheng, JIAO Yongxin, WANG Kaikai. Study on the interaction between heavy metal elements and other elements and bioavailability in the soil-maize system in Eastern Yinan of Shandong Province. , 2024, 11(1): 105-113.
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2024, Vol. 11 
