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切尔诺贝利核事故泄漏137Cs在苏皖地区湖泊沉积物中的蓄积及时标意义
引用本文:项亮,王苏民,薛滨.切尔诺贝利核事故泄漏137Cs在苏皖地区湖泊沉积物中的蓄积及时标意义[J].海洋与湖沼,1996,27(2):132-137.
作者姓名:项亮  王苏民  薛滨
作者单位:中国科学院南京地理与湖泊研究所!南京,210008,中国科学院南京地理与湖泊研究所!南京,210008,中国科学院南京地理与湖泊研究所!南京,210008
基金项目:中国科学院“八五”重点项目!Z-011,国家自然科学基金!49271068
摘    要:通过对1991年5月-1992年10月间采自江苏固城湖和安徽女山湖的3个沉积孔柱中人工放射性核素137Cs比度垂直分布的分析研究,发现在该地区切尔诺贝利核事故泄漏137Cs有明显的蓄积,其峰值与核武器试验导致的1963年137Cs时最大蓄积峰值相当,具有同样的时标意义。因此,在苏皖地区这-137Cs蓄积峰值对研究现代湖泊沉积、水土流失和区域环境变化等都有重要价值。

关 键 词:放射性核素  泄漏  湖泊  沉积物  蓄积  铯137
收稿时间:1993/5/30 0:00:00
修稿时间:1993/9/21 0:00:00

ACCUMULATION AND TIME MARKER SIGNIFICANCE OF CHERNOBYL - DERIVED 137Cs IN LAKE SEDIMENTS FROM JIANGSU - ANHUI
Xiang Liang,Wang Sumin and Xue Bin.ACCUMULATION AND TIME MARKER SIGNIFICANCE OF CHERNOBYL - DERIVED 137Cs IN LAKE SEDIMENTS FROM JIANGSU - ANHUI[J].Oceanologia Et Limnologia Sinica,1996,27(2):132-137.
Authors:Xiang Liang  Wang Sumin and Xue Bin
Institution:Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008;Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008;Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008
Abstract:The 137Cs from the Chernobyl accident in Pre- Sovit Union is the only widespread source of 137Cs which is not fallout from atomspheric testing of nuclepar weapons in natural environment. So it is likely to play an important role as tracer in studying on natural environments. According to the study on the profile distribution patterns of 137Cs in three sediment cores which were collected from Guchenghu Lake, Jiangsu, and Nhshanhu Lake, Anhui, from May, 1991 to Oct., 1992, the characteristics of Chernobyl - derived 137Cs are discussed in this paper. The high peak fallout of Chernobyl-derived 137Cs is similar to that from the atmospheric testing of nuclear weapons during 1963 in this area, so the peak fallout of 137Cs from the Chernobyl accident provides a distinct chronological marker which is a useful tracer in Jiangsu-anhui area for indicating recent sediment record, substantial increase in accumulation rate and local environments respectively.
Keywords:Chernobyl-derived ~(137)Cs Lake sediment Time marker
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