%0 Journal Article
%T Effects of simulated acid rains on Cd,Cu and Zn release and their form transformation in polluted soils<br>模拟酸雨对污染土壤中Cd、Cu和Zn释放及其形态转化的影响
%A GUO Zhaohui
%A HUANG Changyong
%A LIAO Bohan
%A <br>郭朝晖
%A 黄昌勇
%A 廖柏寒
%J 应用生态学报
%D 2003
%I 
%X The release and form transformation of Cd, Cu, and Zn in polluted red soil and yellow red soil affected by simulated acid rains were studied through batch equilibrium experiments. The results showed that the release of test heavy metals increased significantly with decreasing pH value of simulated acid rain. Their release amount was negatively correlated to the pH value of acid rains. In polluted red soil and yellow red soil, Cd existed mainly in exchangeable form, and Cu in organically bound and Mn oxide-occluded forms. Zn existed mainly in residual and exchangeable forms in polluted red soil, and in residual and organically bound forms in polluted yellow red soil. To some extents, the release of Cd, Cu and Zn and the chemical forms of Cd and Zn in test soils were affected by soil organic matter content and CEC. The release amount of bio-available Cd and Cu in polluted red soil and yellow red soil was increased greatly with the increasing acidity of simulated acid rains, but the transformation of Zn from stable to bio-available form was not obvious.
%K Simulated acid rain
%K Release of heavy metals
%K Form transformation of heavy metals<br>模拟酸雨
%K 重金属释放
%K 重金属形态转化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=0353B481126F6499&yid=D43C4A19B2EE3C0A&vid=F3583C8E78166B9E&iid=9CF7A0430CBB2DFD&sid=D9E4B4338A9AF29A&eid=617DEAEB2884AFC7&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=25&reference_num=11