地理科学

地理科学 ›› 1988, Vol. 8 ›› Issue (1): 79-86,100.doi: 10.13249/j.cnki.sgs.1988.01.79

• 研究报道 • 上一篇    下一篇

洞庭湖水系河水中28种元素背景值研究

钱杏珍1, 李岫霞1, 李健2   

  1. 1. 中国科学院高能物理所 北京;
    2. 湖南省环境保护研究所 长沙
  • 出版日期:1988-01-20 发布日期:1988-01-20

INVESTIGATION OF BACKGROUND VALUES OF 28 ELEMENTS IN RIVER WATER FROM DONGTING LAKE SYSTEM

Qian Xingzhen1, Li Xiuxia1, Li Jian2   

  1. 1. Institute of High Energy Physics, Academia Sinica, Beijing;
    2. Hunan Institute of Environmental Protection
  • Online:1988-01-20 Published:1988-01-20

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被引次数

7

摘要： 本文用中子活化法研究了洞庭湖水系湘江、资水、源江、澧水河水中28种元素的背景值。讨论了元素背景值的区域特征、人类活动和基岩性质对背景值的影响,以及元素溶解态和悬浮态浓度的比例和赋存状态。

Abstract: The Dongting Lake system includes the Xiangjiang River,the Zijiang River,the Yuanjiang River and the Lijiang River.The contents of 28 elements:Ag,As,Au,Ba,Ce,Co,Cr,Cs,Eu,Fe,La,Lu,Mo,Na,Nd,Rb, Sb,Sc,Sm,Sr,Tb,Th,U,Yb and Zn in the river water from the Dongting Lake system have been determined with the Neutron Activation Analysis method.The average contents of these 1elements are all within the range of element compositions of the world fresh water,and close to the low limit of the ranges.The coefficients of variations of contents are wthin 0.72 for most elements.In comparison with other river water,the contents of Pe,Th and Re REE in the Dongting Lake system are lower,but the contents of Rb and Cs are relatively high.That is mainly caused by the influence of the hydrochemistry and geochemistry.The reason why the environmental background values of almost elements in the reservoir water are higher than in river water is discussed in the paper.The human activities might result in the increase of the environmental background values of elements.Finally,the percentage by content of 18 elements in soluble and suspended state and forms are also discussed.