元素沉积通量在重金属高分辨率沉积记录中应用——以洪湖为例  

Sedimentary Flux of Heavy Metals Residues in Sedimentary Core-A Case Study of Honghu Lake

作　　者：王伟[1] 祁士华[1] 吴辰熙[1] 张俊刚[1] 方敏[1] 张菲娜[1] 

机构地区：[1]中国地质大学(武汉)环境学院,武汉430074

出　　处：《环境科学与技术》2006年第10期41-42,共2页Environmental Science & Technology

基　　金：国家自然科学基金项目(40173032);湖北省地调院江汉流域经济区农业地质调查项目(200414200009-2-3)

摘　　要：通过对洪湖沉积柱样重金属元素Hg,Pb及总有机碳(TOC)沉积通量的研究,揭示了洪湖一百年内,特别是近10年以来重金属污染物的沉积特征与变化。研究认为应用“元素沉积通量”分析重金属在沉积柱的高分辨沉积记录,能够很好弥补元素浓度的缺陷,其结果也很好地与湖区沉积物来源时间变化相吻合。Sedimentary flux was used to analyze heavy metals including Hg and Pb as well as TOC residues in sedimentary core of Honghu Lake, Hubei Province to reveal heavy metal pollution in this area within 100 years, particularly in recent 10 years. The application of element sedimentary flux to heavy metal analysis could provide good supplement to element concentration, with results in well accordance with temporal and spatial changes of the Lake ecology.

关 键 词：元素沉积通量 元素浓度 重金属污染物 沉积记录 

分 类 号：X830.2[环境科学与工程—环境工程]