极地研究2012，Vol.24Issue(4)：384-390,7.DOI:10.3724/SP.J.1084.2012.00384
东南极阿曼达湾湖泊沉积物物源的元素分析
GEOCHEMICAL ANALYSIS TO DETERMINE THE SOURCES OF LAKE SEDIMENTS FROM AMANDA BAY, EAST ANTARCTICA
摘要
Abstract
Two short lake sediment cores,EPI and PI,were collected at N Island,Amanda Bay,East Antarctica,during the 2007-2008 seasons.The lithology and sedimentology of the EPI profile indicated a predominance of peat deposit.The PI sediments were composed of black mud,contained many penguin feathers and bones,and had a strong and unpleasant smell of penguin guano.Elemental concentrations in the sediments of the EPI and PI cores,local bedrock,and lake algae,were analyzed.The results indicated that elemental concentrations in the sediments of the EPI core were primarily derived from bedrock and lake algae.The abundance of total carbon (TC) ,total nitrogen (TN) ,total phosphorus (TP) ,Cu,Zn,Hg,and Se in the PI core sediments was much higher than that in local bedrock,suggesting that the sediments were mainly composed of emperor penguin guano,while the element Pb was derived from the geochemical background.This study demonstrates that emperor penguins transport marine-derived nutrients and heavy metal pollutants into lake ecosystems.关键词
阿曼达湾/帝企鹅/鸟粪/湖泊沉积物/地球化学/东南极Key words
Amanda Bay/emperor penguin/guano/lake sediment/geochemical analysis/East Antarctica引用本文复制引用
黄涛,孙立广..东南极阿曼达湾湖泊沉积物物源的元素分析[J].极地研究,2012,24(4):384-390,7.基金项目
国家自然科学基金(41106162)、中国极地科学战略研究基金(20100214)、南北极环境综合考察与评估专项子课题(CHINARE2012-02-01-03)和中国博士后科学基金(20100480682,201104309)资助 （41106162）
