Stable Isotope Ratios in Soils: A New Tool to Detect Processes Governing the Selenium Cycle

摘要：

Introduction Selenium (Se) is an essential trace element for animals and humans with a narrow margin between sufficiency and toxicity. Therefore, understanding the Se cycle is necessary, both to avoid deficiency as well as toxicity of Se. A novel tool to investigate the Se cycle is offered by the use of the natural abundance of stable Se isotopes. Environmental processes (e.g., biomethylation, plant uptake and recycling via litterfall) involving changes in redox conditions result in Se isotope fractional on.

作者: Schilling K Johnson T M Wilcke W

作者单位: University of Utrecht, Faculty of Geoscience-Petrology. Budapestlaan 4,3584 CEUtrecht, Netherlands Environmental Isotope Geochemistry Group, Department of Geology, University oflllinois at Urbana-Cha Geographic Institute, University of Berne, Hallerstr. 12,3012 Berne, Switzerland

会议类型: 国际会议

会议名称: 第二届硒对环境和人类健康国际会议

会议地点: 苏州

会议语种:英文

页码: 9-10

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）