2018年夏季普里兹湾西侧痕量元素水平分布初探
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X131

基金项目:

国家重点研发计划(2018YFC1406801);国家自然科学基金(41776185)


Distribution of trace elements in seawater from the Prydz Bay in the summer 2018
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The National key research and development program,The National Natural Science Foundation of China

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    摘要:

    为了更好地了解痕量元素在南大洋海洋生物地球化学循环中的作用、分布以及可能的来源,利用原子荧光和原子吸收分光光度法,分别测定了普里兹湾西侧(62°S~67°S和50°E~72°E)44个站点的表层海水样品中铜、铅、镉和砷的含量。结果显示,普里兹湾西侧水域表层海水铜、铅、镉和砷平均浓度分别为(1.440±0.184)μg/L、(0.250±0.037)μg/L、(0.060±0.007)μg/L和(3.520±0.128)μg/L。通过进一步分析表明,普里兹湾西侧表层海水中痕量元素的浓度处于较低水平且在此海域内浓度变化不大。并且,叶绿素和盐度与铜、镉、砷和铅相关性及显著性并不明显,且存在差异。此外,普里兹湾西侧痕量元素的主要来源与冰雪融化、大气及由大陆所携带痕量微粒的输送、人为活动的增多以及浮游植物的分布和摄取等密切相关。

    Abstract:

    In order to better understand the role, distribution, as well as possible sources of trace element in biogeochemical cycles in the Southern Ocean, surface seawater samples were collected from 44 survey stations on the west side of the Prydz Bay (62°S-67°S, 50°E-72°E).The concentration and distribution of trace elements, including As, Cu, Pb and Cd were determined and evaluated by AFS (Atomic Fluorescence Spectrometry) and AAS (Atomic Absorption Spectrometry).The results showed that the concentration of As, Cu, Pb, Cd were (3.520±0.184)μg/L, (1.440±0.037)μg/L, (0.250±0.007)μg/L and (0.060±0.128)μg/L. The concentration of trace elements in the surface water of the western side of Prydz Bay was at a low level, and the concentration in this sea area did not change much. Moreover, the correlation and significance of chlorophyll and salinity with copper, cadmium, arsenic and lead were not obvious and varied. In addition, the main source of trace elements on the west side of Prydz Bay was closely related to the melting of snow and ice, the transport of atmospheric particles and trace particles carried by the continent, the increase of human activities and the distribution and uptake of phytoplankton.

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高春梅,韩乃旭,朱国平,丁国栋,周梦潇,曹樟,方涵,杨行.2018年夏季普里兹湾西侧痕量元素水平分布初探[J].上海海洋大学学报,2020,29(5):789-800.
GAO Chunmei, HAN Naixu, ZHU Guoping, DING Guodong, ZHOU Mengxiao, CAO Zhang, FANG Han, YANG Hang. Distribution of trace elements in seawater from the Prydz Bay in the summer 2018[J]. Journal of Shanghai Ocean University,2020,29(5):789-800.

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  • 收稿日期:2019-05-13
  • 最后修改日期:2019-12-27
  • 录用日期:2020-02-13
  • 在线发布日期: 2020-09-30
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