【摘要】 通过对山东省水岸带土壤理化性质和重金属含量研究表明:山东省水岸带土壤pH和有机碳含量均值分别高于和低于山东省土壤背景值,水岸带土壤pH、粒径组成和有机碳含量的空间分布差异相对较大,反映了土壤质地、物质来源和周围环境条件对土壤性质的影响;各重金属含量均与土壤有机碳值极显著相关(P<0.01),除Pb和Hg外,其他重金属含量均与土壤的平均粒径呈极显著的负相关关系(P<0.01),而只有Cd和Pb分别与pH呈显著正相关和负相关关系,表明土壤有机质和粒度对水岸带重金属含量影响较大,而土壤pH对重金属含量影响较小。更多还原

【Abstract】 Soil physicochemical properties and heavy metal concentrations in riparian zone of Shandong Province were analyzed, and the results showed that the average pH of riparian soil was higher than the soil background value of Shandong Province,while the average total organic carbon content was lower than the soil background value. There were great differences in the spatial distribution of pH,particle size and total organic carbon content in riparian soil, which reflected the influence of soil texture, exogenous material source and ambient environmental conditions on soil properties. The results of correlation analysis showed that heavy metal concentrations were all significantly positively correlated with total organic carbon content(P<0.01), but negatively correlated with particle size except Pb and Hg(P<0.01). Only Cd and Pb had significantly positive and negative correlations with pH, respectively. Therefore, it could be concluded that soil organic matter and particle size had greater impact on the heavy metal concentrations in riparian zone compared with soil pH values.更多还原