Distribution and source identification of Pu in the tidal flat wetlands of northern Jiangsu Province and radial sand ridge of southern Yellow Sea-An explanation of “land-sea interaction”
Distribution and source identification of Pu in the tidal flat wetlands of northern Jiangsu Province and radial sand ridge of southern Yellow Sea-An explanation of “land-sea interaction”
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苏北滩涂湿地和黄海南部放射状沙脊中Pu的分布及来源识别——“陆海相互作用的解释”
DOI：
10.1016/j.catena.2021.105506
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发表时间：
2021
期刊：
影响因子：
6.2
通讯作者：
Liu Zhiyong
中科院分区：
文献类型：
--
作者：
Wang Ruirui;Zhu Yawei;Hu Feifei;Xu Xinyue;Sun Zhuyou;Liu Zhiyong
采用SF-ICPMS对苏北滩涂湿地和南黄海放射状沙脊表层沉积物中的239Pu、240Pu进行了分析。滩涂湿地和放射状沙脊是滨海地区特殊的沉积类型，是研究海陆相互作用的理想场所。研究样品的~(240)Pu/~(239)Pu原子比表明，大部分样品中的Pu来自全球降尘，只有长江口附近和放射状沙脊航道附近的少数样品中的Pu受到太平洋探测场(PPG)的近距离Pu的影响，Pu的贡献率为41.5-50%。在组成上，由于研究的样品主要是沙，所以我们样品中的239+240Pu活度低于中国的河流沉积物中的活度。钚的运输是一个非常重要的科学问题，研究表明，钚是从陆上的“源头”被“输送”到沿海和海洋中的。此外，Pu在沿海和海域的分布还受到河流和洋流输入的影响，这是陆海相互作用的表现形式。
239Pu,240Pu in the surface sediments from tidal flat wetlands in northern Jiangsu Province and radial sand ridge in southern Yellow Sea were analyzed by SF-ICP-MS. Tidal flat wetlands and radial sand ridge are the special sediment deposits in coastal area, which are the ideal places to study “land-sea interaction”. The240Pu/239Pu atom ratios in our research samples show that the Pu in most samples is from global fallout, only the Pu in a few samples near Yangtze River Estuary and channel of radial sand ridge is affected by the close-in Pu fallout from Pacific Proving Grounds (PPG), and the contribution of Pu from PPG is 41.5–50%. In composition, since the study samples are mainly sand, the239+240Pu activities in our samples are lower than those in river sediments of China. The transport of Pu is a very important scientific issue, and researches have shown that Pu is “transported” into the coastal areas and seas from the land- based “source”. In addition, the Pu distribution in coastal areas and seas is affected by the input of rivers and ocean currents, which is a manifestation of the “land-sea interaction”.
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影响因子：
4.6
作者：
Zheng, Jian;Tagami, Keiko;Watanabe, Yoshito;Uchida, Shigeo;Aono, Tatsuo;Ishii, Nobuyoshi;Yoshida, Satoshi;Kubota, Yoshihisa;Fuma, Shoichi;Ihara, Sadao
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
4.6
作者：
Bu W;Ni Y;Guo Q;Zheng J;Uchida S
通讯作者：
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影响因子：
4.4
作者：
Wenyan Zhang;Ralf Schneider;Jakob J. Kolb;T. Teichmann;Joanna Dudzinska-Nowak;J. Harff;T. Hanebuth
通讯作者：
Wenyan Zhang;Ralf Schneider;Jakob J. Kolb;T. Teichmann;Joanna Dudzinska-Nowak;J. Harff;T. Hanebuth
影响因子：
2.3
作者：
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通讯作者：
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