地理科学

地理科学 ›› 1997, Vol. 17 ›› Issue (1): 47-55.doi: 10.13249/j.cnki.sgs.1997.01.47

• 论文 • 上一篇    下一篇

阿拉斯加北坡巴罗地区(BARROW)水体的pH值和电导率分析

侯书贵1, 秦大河1, 张青松2   

  1. 1. 中国科学院兰州冰川冻土研究所冰芯与寒区环境实验室, 兰州730000;
    2. 中国科学院国家计委地理研究所, 北京100101
  • 收稿日期:1995-12-14 修回日期:1996-09-12 出版日期:1997-01-20 发布日期:1997-01-20
  • 基金资助:
    国家自然科学基金(49571072)资助项目;中国科学院特别资助项目;中国科学院兰州冰川冻土研究所冰芯与寒区环境实验室资助项目

PRELIMINARY STUDY ON ACIDITY AND CONDUCTIVITY FEATURES OF FIVE KINDS OF WATER AT POINT BARROW, ALASKA

Hou Shugui1, Qin Dahe1, Zhang Qingsong2   

  1. 1. Laboratory of Ice Core and Cold Regions Environment, Lanzhou Institute of Glaciology & Geocryology, Chinese Academy of Sciences, Lanzhou 730000;
    2. Institute of Geography, Chinese Academy of Sciences and the State Planning Commision, Beijing 100101
  • Received:1995-12-14 Revised:1996-09-12 Online:1997-01-20 Published:1997-01-20

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摘要： 根据1994年8～9月份在阿拉斯加北坡巴罗地区采集的5类水样(大气降水、河水、湖水、海水和地下水)的实测资料,初步探讨了本区水体的pH值和电导率的分布特征及环境意义。

Abstract: In this paper, the acidity and conductivity features of five kinds of water samples collected at Point Barrow, Alaska are considered. Results show that the summer precipitation is acidic, while the surface water alkaline. We also notice that the ground ice displays a weak acidic medium, which is much different from the surface water. As proved by the conductivity values, the fresh-water lake doesn’t show chemical enrichment compared to river or precipitation. Unlike other’s work at the Canadian High Arctic, positive relationship between conductivity and acidity of the precipitation samples isn’t found in our work, which means that the chemical features of the summer precipitation should be influenced by local alkiline dust to a certain extent, while the chemical features of the winter precipitation is mainly controlled by acidic sulphate particles.