泥炭中腐植酸与重金属Pb、Cu、Zn分布的相关分析  

Analysis on Relationship between Humic Substances in Peat and Heavy Metals Pb,Cu and Zn

作　　者：王江静[1] 徐光远[1] 刘佳[1,2] 杨倩楠[1,2] 赵红艳[1,2] 

机构地区：[1]东北师范大学地理科学学院,长春130024 [2]东北师范大学国家环境保护湿地生态与植被恢复重点实验室,长春130024

出　　处：《腐植酸》2017年第3期50-55,共6页Humic Acid

基　　金：国家自然科学基金项目(41471165);国家级大学生创新创业训练计划项目(2016LX01057;201710200056);吉林省教育厅(2016506)共同资助

摘　　要：通过长白山哈泥泥炭沼泽两个泥炭剖面内总腐植酸、棕黑腐植酸、黄腐酸含量变化与重金属Pb、Cu、Zn的关系研究,探究不同剖面深度泥炭中各种腐植酸与重金属Pb、Cu、Zn分布的相关分析。研究结果表明,两个剖面的Pb含量、Pb沉积速率、Pb富集因子与总腐植酸、黄腐酸均存在良好的正相关关系。Cu沉积速率与总腐植酸和黄腐酸也存在正相关关系,但Cu的富集因子与总腐植酸和黄腐酸存在负相关关系,Zn的富集因子也与总腐植酸和黄腐酸呈负相关关系。证明重金属可以被腐植酸吸附,且主要与腐植酸中的黄腐酸结合。Concentrations of total humic acid, humilic acid and fulvic acid in peat samples from Hani mire in the Changbai Mountain were measured to analyze the relationships between humic substances and concentrations, enrichment factors and fluxes of Pb, Cu and Zn. The results showed that Pb concentrations, Pb fluxes, and Pb enrichment factors in both sections were significant relations with total humic acids, specially combined with fulvic acid. Cu fluxes were significant positive relations with total humic acids, specially combined with fulvic acid. The enrichment factors of both Cu and Zn had negative correlation to total humic acids, specially combined with fulvic acid. This proved that heavy metals could be absorbed by humic acid and mainly combined with fulvic acid in humic acid.

关 键 词：泥炭 腐植酸 重金属 PB CU ZN 

分 类 号：S141[农业科学—肥料学] X53[农业科学—农业基础科学]