玄武岩母质发育的土壤上铜和锌的地球化学特征*
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* 中国科学院科学基金


THE GEOCHEMICAL CHARACTERISTICS OF Cu AND Zn IN SOILS DERIVED FROM BASALT
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    摘要:

    在成土过程中,铜和锌均有移动,迁移量铜大于锌,但这种作用小于母岩地球化学差异对总含量的影响。铜和锌的有效态含量,表土高于底土,海拔高处大于低处,pH值的影响作用并不显著。土壤中无定形铜含量与全铜量的比值,在富铝化程度相类似的土壤上随海拔升高而明显增大,即在红壤、黄红壤和黄壤之间有明显不同。无定形铜含量有随风化淋溶作用增强而降低的趋势。这些可作为土壤分类和肥力评价上的参考。

    Abstract:

    Migration of Cu and Zn in soils derived from basalt in Zhejiang Province occurs in their soil forming process. The amount of migration of Cu is larger than that of Zn. However the influence of the migration of these elements on their total contents is less than that of the geochemical difference of parent riaterials. Cu and Zn contents in the surface soil are higher than those in subsoil, and those in the soils with a higher altitute are higher than those in the soils with a lower altitute. The effect of pH is insignificant.The ratio of amorphous Cu to total Cu in the soils with similar allitic process increases with the increase of the altitute at which the soils are located, i.e. there is significant difference in the ratio among the red earths, yellow-red earths and yellow earth. However, the content of amorphous Cu tends to be decreased with the intensification of weathering and eluviation proceses. All these may be used as factors for soil classification and evaluation of soil fertility.

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陆景冈,吴次芳.玄武岩母质发育的土壤上铜和锌的地球化学特征*[J].土壤学报,1987,24(4):361-368. Lu Jinggang, Wu Cifang. THE GEOCHEMICAL CHARACTERISTICS OF Cu AND Zn IN SOILS DERIVED FROM BASALT[J]. Acta Pedologica Sinica,1987,24(4):361-368.

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  • 在线发布日期: 2013-02-25
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