摘要
2008年11月末在青岛近海和胶州湾11个站点采集表层和底层海水中的悬浮颗粒物(SPM)样品,经消解后用等离子体发射光谱法测定了Al、Ca、Fe、Mg、Mn、Ti和Ba、Co、Cr、Cu、Ni、Pb、Sr、V、Zn共15个金属元素以及P的含量,结合SPM和元素含量聚类分析的结果探讨了秋末冬初青岛近海SPM的来源以及金属元素组成的影响因素。SPM含量范围在1.7～16.1mg/L之间,平均为7.9mg/L;SPM来源以陆源风化产物为主,生物生产有较小的贡献。SPM中Ti、Fe、Mn、Mg、Al、V、Co、Sr和Ni的含量相对恒定,且主要受陆源输入的控制;Ca和P除受陆源影响外,生物生产亦有附加贡献。离陆地相对较远的区域表层海水SPM中Pb、Zn和Ba、Cr、Cu的含量较高,特别是Pb和Zn的富集因子较大,可能受到了潜在的污染影响。Ti的恒定性以及与SPM的良好相关性代表着在青岛近海可用Ti作为颗粒物陆源指示元素,且优于Al。
Suspended particulate matter（SPM） samples from the surface and bottom waters were collected in Qingdao coastal sea and the Jiaozhou Bay in the end of November 2008.15 metal elements,i.e.,Al,Ca,Fe,Mg,Mn,Ti,Ba,Co,Cr,Cu,Ni,Pb,Sr,V,Zn,and phosphorus were determined by inductive coupled plasma-atomic emission spectrometry after acid decomposition.The sources of SPM and the influence factors in the early winter were discussed based on the element contents in SPM and clustering analysis.SPM content ranged between 1.7 and 16.1 mg/L with an average value of 7.9 mg/L.The main source of SPM was from lithogenic weathering product.Biological production contributed a small part to SPM in this season.Contents of Ti,Fe,Mn,Mg,Al,V,Co,Sr and Ni in SPM were relatively constant and dominated by lithogenic input.Biogenic particles were possible addition to Ca and P in SPM besides lithogenic contribution.Contents of Pb,Zn and Ba,Cr,Cu in surface waters far from the land were high,which indicated the potential influence of pollution.The constancy of Ti in SPM and the good correlation between Ti and SPM suggested that as an indicator element for lithogenic input of particles in Qingdao coastal sea Ti is better than Al.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第5期81-86,共6页
Periodical of Ocean University of China
基金
国家重点基础研究发展计划项目(2005CB422305)
留学回国人员科研启动基金项目(20062331)资助
关键词
悬浮颗粒物
金属元素
磷
来源
青岛近海
suspended particulate matter
metal elements
phosphorus
source
Qingdao coastal sea
