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Concentration and distribution of metal elements in soils near a upstream of the Pearl River, China

机译：中国珠江上游土壤中金属元素的浓度与分布

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摘要

The concentration and distribution of metal (Mg, K, Ca and Na) elements in agricultural and non-agricultural soils were investigated in upstream of the Pearl River, China. The result showed that total Mg, K, Ca and Na concentrations in agricultural soils were higher than those in non-agricultural soils, indicating that agricultural input, such as water irrigation, fertilizer and pesticide application, may have led to the accumulation of Mg, K, Ca and Na in agricultural soils Total concentrations of the metal elements in agricultural and non-agricultural soils were compared with the background values of Yunnan soil, the result showed Mg, K and Na were lower in both agricultural and non-agricultural soils in the study area, while Ca was relatively higher, which were possibly due to Karsts geographic environment in the study area.
机译：中国珠江上游研究了农业和非农业土壤中金属（Mg，K，Ca和Na）元素的浓度和分布。结果表明，农业土壤中的总Mg，K，Ca和Na浓度高于非农业土壤中的浓度，表明农业投入，如水灌溉，肥料和农药应用，可能导致MG的积累，农业土壤中的K，CA和NA农业和非农业土壤中金属元素的总浓度与云南土壤的背景值进行比较，结果显示Mg，K和NA在农业和非农业土壤中较低研究区，而CA相对较高，这可能是由于研究区域的喀斯特地理环境。

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