模拟酸雨对草甸棕壤中重金属迁移的影响

Study on the Movement of Heavy Metals in Meadow Burozem Affected by Model Acid Precipitation

通过室内模拟试验，研究了沈阳地区酸雨对当地草甸棕壤中Ｃｄ、Ｐｂ、Ｃｕ、Ｚｎ和Ａｓ垂直迁移的影响，结果表明，酸雨能促进Ｃｄ、Ｐｂ、Ｃｕ和Ｚｎ的迁移，随酸雨酸度增加其促进作用也加强，而且酸雨对Ｃｄ、Ｚｎ的影响大于Ｃｕ、Ｐｂ、Ａｓ的迁移只有在弱酸性酸雨条件下才有增加，在强酸性酸雨条件下，Ａｓ的迁移受到抑制。

Modal experiment was conducted to assess the movement of heavy metals in meadow burozem in Shenyang affected by acid precipitation. Acid precipitation contributed to the movement of Cd, Pb, Cu, and Zn in meadow burozem, but the movement of As was reduced by acid precipitation with strong acidity and increased by acid precipitation with weak acidity.