期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

2016年 第10卷 第1期

摘要

关键词

相关研究

回顶部

《环境科学与工程前沿（英文）》 >> 2016年 第10卷 第1期 doi: 10.1007/s11783-014-0723-4

Sequence of the main geochemical controls on the Cu and Zn fractions in the Yangtze River estuarine sediments

1. Key Laboratory for Water and Sediment Science of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China.2. Interdisciplinary Life Science Graduate Program, Purdue University, West Lafayette, IN 47907, USA

录用日期： 2014-06-11 发布日期： 2015-12-03
HTML15 PDF 2 收藏 0

下一篇 上一篇

摘要

Metal speciation can provide sufficient information for environmental and geochemical researches. In this study, based on the speciation determination of Cu and Zn in the Yangtze Estuary sediments, roles of eight geochemical controls (i.e., total organic carbon (TOC), clay, Fe/Mn in five chemical fractions and salinity) are fully investigated and sequenced with correlation analysis (CA) and principal components analysis (PCA). Results show that TOC, clay and Fe/Mn oxides are key geochemical factors affecting the chemical speciation distributions of Cu and Zn in sediments, while the role of salinity appears to be more indirect effect. The influencing sequence generally follows the order: TOC>clay>Mn oxides>Fe oxides>salinity. Among the different fractions of Fe/Mn oxides, residual and total Fe content, and exchangeable and carbonate Mn exert the greatest influences, while exchangeable Fe and residual Mn show the poorest influences.

相关研究