酸雨对缙云山林地黄壤汞溶出的影响  

Effect of acid rain on mercury leaching from forest yellow soil in Jinyun Mountain

作　　者：李静[1] 魏世强[1] 杨学春[1] 

机构地区：[1]西南农业大学资源与环境学院,重庆市农业资源与环境研究重点实验室,重庆400716

出　　处：《应用生态学报》2004年第9期1681-1683,共3页Chinese Journal of Applied Ecology

基　　金：国家教育部优秀青年教师资助项目 ( 2 0 0 2 0 716);国家教育部春辉计划资助项目

摘　　要：Forest yellow soil and arable yellow soil in Jinyun Mountain were collected to study the effect of simulated acid rain(adjusted to pH 2.0,3.0,4.0 and 5.0) on the Hg leaching from soils by the methods of static extraction and dynamic leaching.The results showed that in forest yellow soils,surface accumulation of Hg occurred,and the accumulated Hg was easier to be leached out than that in arable yellow soil by acid rain.The amount of leached Hg was the largest at pH 4.0.To abate the risk of Hg pollution in water bodies by the Hg leaching from this forest soil,the Mountain should be closed,and timber-felling should be forbidden.Forest yellow soil and arable yellow soil in Jinyun Mountain were collected to study the effect of simulated acid rain(adjusted to pH 2.0,3.0,4.0 and 5.0) on the Hg leaching from soils by the methods of static extraction and dynamic leaching.The results showed that in forest yellow soils,surface accumulation of Hg occurred,and the accumulated Hg was easier to be leached out than that in arable yellow soil by acid rain.The amount of leached Hg was the largest at pH 4.0.To abate the risk of Hg pollution in water bodies by the Hg leaching from this forest soil,the Mountain should be closed,and timber-felling should be forbidden.

关 键 词：酸雨 缙云山 林地 黄壤 汞 污染 水质 

分 类 号：X51[环境科学与工程—环境工程]