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冰川冻土 ›› 1998, Vol. 20 ›› Issue (1): 74-78.

• 研究论文 • 上一篇    下一篇

天山巩乃斯河流域季节性积雪化学成分特征与时空变化分析

姜逢清, 魏文寿, 刘明哲, 李卫红, 汪新军   

  1. 中国科学院新疆地理研究所, 乌鲁木齐830011
  • 收稿日期:1997-08-11 出版日期:1998-02-25 发布日期:2012-04-26
  • 基金资助:
    中国科学院冰冻圈动态变化基础研究(KJ-b-2-203)项目

A Snow Chemical Survey in the Middle and Upper Reaches of the Kunnes River, Xinjiang, China

JIANG Feng-Qing, WEI Wen-Shou, LIU Ming-Zhe, LI Wei-Hong, WANG Xin-Jun   

  1. Xinjiang Institute of Geography, Chinese Academy of Sciences, Urumqi 830011
  • Received:1997-08-11 Online:1998-02-25 Published:2012-04-26

摘要: 巩乃斯河流域积雪阴、阳离子的空间变化以K++Na+、Ca2+与SO42-和HCO3-等离子最明显;K++Na+与SO42-、Ca2+与HCO3-变化基本同步。从新降雪阴、阳离子的时间变化上看,隆冬季节积雪深厚范围广,相应离子含量低。调查区积雪对局地人类活动所造成的污染有较明显的记录。

关键词: 巩乃斯河流域, 积雪化学, 阴、阳离子, pH值

Abstract: Kunnes River is one of the tributaries of the Yili River in Xinjiang. Tianshan Station for Snow and Avalanche Research, Chinese Academy of Sciences, stands at its upper reaches. Snow chemical surveys were carried out in spring of 1996 and winter of 1996/1997. About 100 snow and river water samples were collected along the river. Then, the samples were analyzed by methods of common chemical analysis and IDMS in our institute. The results show that concentration of Ca2+ varies in a range from 2 to 12 mg/L, and that of Mg2+ is between 0.9 and 2.5 mg/L. The concentration of K+and Na+ changes from 4.4 to 8.76 mg/L. There are obvious influences of anthropogenic factors on the snow chemistry. A relative high concentration of sulphate is found within the snow. The sulphate is mainly from the dried lakes and desert in central Asia. In regard to heavy metals, the concentration of Zn varies in a range from 0.01 to 0.05 mg/L, and Pb is lower than 0.1 mg/L. The concentrationsof Cu and Cd in the snow samples are very low, lower than 0.005 mg/L.

Key words: Kunnes River, snow chemistry, anion and cation, pH value

中图分类号: 

  • P343.6