%0 Journal Article
%T Heavy metals contents and Hg adsorption characteristics of mosses in virgin forest of Gongga Mountain.<br>贡嘎山原始森林区苔藓植物重金属含量及其对汞的吸附特征
%A LIANG Peng
%A YANG Yong-kui
%A HE Lei
%A WANG Ding-yong
%A <br>梁鹏
%A 杨永奎
%A 何磊
%A 王定勇
%J 应用生态学报
%D 2008
%I 
%X Seven main moss species in the Hailuogou virgin forest of Gongga Mountain were sampled to determine their heavy metals (Hg, Cr, Cd, Ni, Pb, Cu, Mn, Zn and Fe) content, and two widely distributed species, Pleurozium schreberi (Brid.) Mitt. and Racomitrium laetum Besch., were selected to study their Hg adsorption characteristics. The results showed that the heavy metals contents in the mosses were lower than the background values in Europe and America, except that the Cd had a comparable value, which indicated that the atmosphere in study area was not polluted by heavy metals and good in quality. The Hg adsorption by P. schreberi and R. laetum was an initiative and rapid process, with the equilibrium reached in about two hours, and could be well fitted by Freundlich and Langmuir equations. Based on Langmuir equation, the maximum Hg adsorption capacities of P. schreberi and R. laetum were 15.24 and 8.19 mg x g(-1), respectively, suggesting that the two mosses had a good capacity of Hg adsorption, and could be used as the bio-monitors of atmospheric Hg pollution.
%K 重金属
%K 汞
%K 吸附
%K 苔藓
%K 贡嘎山
%K 森林区
%K 苔藓植物
%K 金属含量
%K 吸附特征
%K Gongga
%K Mountain
%K forest
%K characteristics
%K adsorption
%K contents
%K 指示生物
%K 大气汞污染
%K 吸附能力
%K 最大吸附量
%K 计算
%K 方程拟合
%K Langmuir
%K 吸附平衡
%K 过程
%K 快速
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=AA02F3D55C38E21B30332572B94E4E57&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=B31275AF3241DB2D&sid=ACF317960D6DF955&eid=D7FC8AF637611368&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=2&reference_num=28