环境生态系统散落核素示踪研究新进展

被引:13
作者
万国江
P.G.Appleby
机构
[1] 中国科学院地球化学研究所环境地球化学国家重点实验室!贵州贵阳
[2] 不详
[3] Dept of Mathematical Sciences
[4] University of Liverpool!POBox
[5] Liver pool
关键词
210Pb、137Cs和7Be; 环境生态系统; 国际生态大会;
D O I
暂无
中图分类号
X171.1 [生态系统与生态环境];
学科分类号
摘要
环境生态系统中的放射性核素既具有生态毒性 ,对生物和人体健康产生重要影响 ,又具有稳定的衰变函数和输入通量 ,对环境生态系统具有重要示踪价值。人类可利用放射性核素来认识环境生态系统 :1环境生态系统中放射性核素的基准 :放射性强度与环境生态系统之间的平衡关系 ;2环境生态系统中放射性核素的行为 :在环境生态系统不同宿体和组分间的运移关系。考察放射性核素在生态系统不同环节中比活度的变化有助于认识环境生态过程生物地球化学作用的影响
引用
收藏
页码:172 / 177
页数:6
相关论文
共 9 条
  • [1] Geochemical Speciation of Soil ~7Be, 137Cs,226Ra and 228Ra as Tracers to Particle Transport
    BAI ZHANGUO
    WAN GUOJIANG
    WANG CHANGSHENG
    WAN XI and HUANG RONGGUI (Institute of Soils and Fertilizers
    [J]. Pedosphere, 1997, (03) : 263 - 268
  • [2] 现代沉积的210Pb计年
    万国江
    [J]. 第四纪研究, 1997, (03) : 230 - 239
  • [3] ~7Be distribution in surface soil of central Guizhou karst region and its erosion trace
    白占国
    力国江
    王长生
    力曦
    黄荣贵
    [J]. Progress in Natural Science, 1996, (06) : 62 - 72
  • [4] The Isotopic Character and the Remobilization of Lead at the Top of Sediment in Erhai[J]. 万国江,刘菊英,黎秉铭.Chinese Science Bulletin. 1993(02)
  • [5] Transect survey of radiocesium in soils and plants of two alpine pastures[J] . B.P Albers,R Rackwitz,W Schimmack,K Bunzl.Science of the Total Environment . 1998 (1)
  • [6] Sediment Records of Fallout Radionuclides and their Application to Studies of Sediment-Water Interactions[J] . P.G. Appleby.Water, Air, and Soil Pollution . 1997 (1)
  • [7] Radium-226 levels in the Cauvery river ecosystem, India[J] . P. Shahul Hameed,K. Shaheed,S. S. N. Somasundaram,M. A. Riyengar.Journal of Biosciences . 1997 (2)
  • [8] Two thousand years of atmospheric arsenic, antimony, and lead deposition recorded in an ombrotrophic peat bog profile, Jura Mountains, Switzerland[J] . William Shotyk,Andrij K. Cheburkin,Peter G. Appleby,Andreas Fankhauser,Jan D. Kramers.Earth and Planetary Science Letters . 1996 (1)
  • [9] Radiometric dating of lake sediments from Signy Island (maritime Antarctic): evidence of recent climatic change[J] . P. G. Appleby,V. J. Jones,J. C. Ellis-Evans.Journal of Paleolimnology . 1995 (2)