文献类型：期刊文献

英文题名：Distribution and enrichment of heavy metals among sediments, water body and plants in Hengshuihu Wetland of Northern China

作者：Zhang, Manyin[1,2,3] Cui, Lijuan[1,3] Sheng, Lianxi[2] Wang, Yifei[1,3]

第一作者：Zhang, Manyin

通信作者：Cui, LJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]NE Normal Univ, Key Lab Wetland Ecol & Vegetat Restorat, Changchun 130024, Peoples R China;[3]State Forestry Adm, Wetland Res Ctr, Beijing 100091, Peoples R China

年份：2009

卷号：35

期号：4

起止页码：563-569

外文期刊名：ECOLOGICAL ENGINEERING

收录：;EI(收录号：20091712049638);Scopus(收录号：2-s2.0-64649085619);WOS:【SCI-EXPANDED(收录号:WOS:000266138600015)】；

语种：英文

外文关键词：Hengshuihu Wetland; Heavy metal; Bioconcentration factors; Reeds Phragmites communis Trin; Distribution

摘要：In this study, a survey for the spatial distribution of heavy metals in Hengshuihu Wetland of China was conducted. Samples were collected from three compartments, water, sediment, and reed (Phragmites communis Trin), at different sites, and their contents of heavy metals, including mercury (Hg), arsenic (As), chromium (Cr), lead (Pb), copper (Cu), zinc (Zn), and cadmium (Cd), were analyzed. The results showed heavy metals in the sediments distributed in the Buffer Zone and Wangkou Sluice area at concentrations relatively higher than those in other areas, while concentrations in the Core Zone were lower. The heavy metal concentrations of water bodies in all areas, except those for Hg and Pb, were lower than the cutoff values for the first-grade water quality that was set as the highest standard to protect the national nature reserves. The heavy metal distributions among the three compartments were significantly different, with the following order: sediment > plant > water. In the reeds, accumulated amounts of different heavy metals varied in the following order: Hg > Zn > As > Cu > Cr. Concentrations of heavy metals only showed weak correlations between the water bodies and the sediments. Concentrations of heavy metals (except Hg and Cr) had no corrections between the sediments and the reeds. The distribution of mercury indicated that it enters the lake mainly from the atmosphere and outside water bodies. The concentrations of As, Hg, Cr, Cu and Zn in different parts of the reeds were detected and their abundances were ranked in the following order: root > leaf > stem. (C) 2008 Published by Elsevier B.V.