橡胶园土壤若干微量元素含量——以海南省胶园土为例

胶园土壤微量元素含量有一定的特征。海南省胶园土个别样点Ｃｄ偏高，Ｃｕ偏低，其它样点Ｃｄ、Ｃｒ、Ｐｈ、Ｚｎ、Ｃｕ、Ｎｉ、Ｍｏ、Ｈｇ含量正常。土壤母质、质地、化学组成、耕作等对微量元素含量有一定影响。玄武岩上的胶园土微量元素较丰富。质地粘重的土壤微量元素含量往往较高。由于铁的水合物吸附固定作用，Ｃｕ、Ｚｕ、Ｃｄ、Ｈｇ含量与Ｆｅ含量有一定关系。Ｃｕ、Ｚｎ、Ｃｄ、Ｈｇ的许多化学性质相似，它们的含量有一定的相关性。

The Content of Micro-elements in Soils of Rubber Plantation: Such as in Hainan Province

Rubber plantation soil is a kind of plantation soil in tropical zone.As for rubber plantation soil in Hainan province, thecontent of Zn, Pb and Cr in most of the soils ranges from 10 to 30 mg/kg, Cu, Mo, and Ni 2~10 mg/kg; Cd < 1 mg/kg;Hg < 0.1 mg/kg; but the content of Cr, Ni, Pb, Cr and Cd in basalt parent material is 0.5~6.5 times as much as otherparent material. The content is affected by parent material, texture, cultivation, pH value, chemical composition and soon, and in heavy soil is usually high. The content of Cu, Zn, Cd and Hg is related to the content of Fe, and of Zn, Cd andHg is related to of Cu.