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.海洋与湖沼,1996,27(2):132-137.

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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
项亮, 王苏民, 薛滨
中国科学院南京地理与湖泊研究所南京 210008

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个沉积孔往中人工放射性核素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时标最大蓄积峰值相当，具有同样的时标意义。因此，在苏皖地区这一¹³⁷Cs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: 切尔诺贝利核事故泄漏¹³⁷Cs 湖泊沉积物时标

DOI：

分类号:

基金项目:中国科学院“八五”重点项目，Z－011号;国家自然科学基金项目（49271068）给予部分资助

附件

ACCUMULATION AND TIME MARKER SIGNIFICANCE OF CHERNOBYL - DERIVED ¹³⁷Cs IN LAKE SEDIMENTS FROM JIANGSU - ANHUI

Xiang Liang, Wang Sumin, Xue Bin

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 nuclear 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 Nvshanhu Lake, Anhui, from May, 1991 to Oct., 1992, the characteristics of Chemobyl - derived ¹³⁷Cs are discussed in this paper. The high peak fallout of Chemobyl - 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.

Key words: Chemobyl - derived ¹³⁷Cs, Lake sediment, Time marker