极地研究

极地研究 ›› 2000, Vol. 11 ›› Issue (1-English): 39-42.

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The 137Cs activity and its geographical significance in terrestrial ecosystem of Great Wall Station, Antarctica

 Zhao Ye1, Li Tianjie1 and Xu Cuihua2   

  1. 1 College of Resource and Environmental Sciences, Beijing Normal University, Beijing 100875, China;
    2 Laboratory of Industrial Hygiene Ministry of Public Health, Beijing 100088, China
  • 出版日期:1950-03-30 发布日期:1950-03-30
  • 通讯作者: Zhao Ye

The 137Cs activity and its geographical significance in terrestrial ecosystem of Great Wall Station, Antarctica

Zhao Ye1, Li Tianjie1 and Xu Cuihua2   

  1. 1 College of Resource and Environmental Sciences, Beijing Normal University, Beijing 100875, China;
    2 Laboratory of Industrial Hygiene Ministry of Public Health, Beijing 100088, China
  • Online:1950-03-30 Published:1950-03-30
  • Contact: Zhao Ye

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摘要：

The radioactive isotope 137Cs is one of the important tracers for studying the physical processes and the human impacts on the environment. Based on the investigation results of the terrestrial ecosystem of Great Wall Station, Antarctica, it was shown that there are some artificial radioactive elements 137Cs in Antarctic terrestrial ecosystem. The sequence of 137Cs specific activities is as follows: crustaceous lichen>fruticose lichen>surface-moss>surface soil, and the crustaceous lichen is one of the most sensitive ways in monitoring the impact of the long-term diffusion of 137Cs on the environment.

关键词: Antarctica, terrestrial ecosystem, 137Cs activity

Abstract:

The radioactive isotope 137Cs is one of the important tracers for studying the physical processes and the human impacts on the environment. Based on the investigation results of the terrestrial ecosystem of Great Wall Station, Antarctica, it was shown that there are some artificial radioactive elements 137Cs in Antarctic terrestrial ecosystem. The sequence of 137Cs specific activities is as follows: crustaceous lichen>fruticose lichen>surface-moss>surface soil, and the crustaceous lichen is one of the most sensitive ways in monitoring the impact of the long-term diffusion of 137Cs on the environment.

Key words: Antarctica, terrestrial ecosystem, 137Cs activity