| 现代环境事件的冰芯记录 |
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| 引用本文： | 康世昌,秦大河,姚檀栋,谢树成,段克勤.现代环境事件的冰芯记录[J].环境科学学报,2001,21(3):301-306. |
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| 作者姓名： | 康世昌 秦大河 姚檀栋 谢树成 段克勤 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所 |
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| 基金项目： | 国家 973项目! (G19990 434 0 0 )，中国科学院知识创新重要方向项目! (KZCX2 - 30 5 )，中国科学院院重大项目!
(KZ95 1-A1- 40 2和 |
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| 摘 要： | 1997年9月，在喜马拉雅山中段希夏邦马峰北坡达索普冰川海拔7000m冰雪平台钻取14m冰芯一支。1990年以来冰芯中主要离子浓度的变化表明，现代环境事件在达索普冰川雪冰中有一定的记录。已有的证据表明1991年达索普冰芯中SO^2-4浓度的最高值最大可能是由海湾战争引发的1991年春季科威特油井燃烧污染物所致。冰芯中陆源离子（如Ca^2 和SO^2-4等）记录与我国西北地区春季沙尘暴具有某些相关性，其逐年变化趋势与新疆13个城市的降尘变化有一定的共性。
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| 关 键 词： | 现代环境事件 冰芯记录 冰川 样品采集 冰芯定年 |
| 文章编号： | 0253-2468(2001)-03-0301-06 |
| 收稿时间： | 2000/4/10 0:00:00 |
| 修稿时间： | 2000年4月10日 |
Ice core records for present environmental events |
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| KANG Shichang,QIN Dahe,YAO Tandong,XIE Shucheng and DUAN Keqin.Ice core records for present environmental events[J].Acta Scientiae Circumstantiae,2001,21(3):301-306. |
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| Authors: | KANG Shichang QIN Dahe YAO Tandong XIE Shucheng and DUAN Keqin |
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| Institution: | Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou 730000,Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou 730000,Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou 730000,Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou 730000 and Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou 730000 |
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| Abstract: | During 1997 September, a 14 m ice core was recovered from an elevation of 7000 m a s l from the Dasuopu Glacier on the northwest margin of Mount Xixabangma in the central Himalayas The variations of major ion concentrations showed that present environmental events had been recorded in the snow of Dasuopu Glacier since 1990 Some evidences indicate that the highest value of SO 4 2- concentration in the core in 1991 may be caused by the pollutants from Kuwaiti oil fires during Persian Gulf War The annual variations of crustal ions (Ca 2+ and SO 4 2- ) concentrations recorded in the firn core may be related to the dust storms happened in spring in northwestern China, and consistent with the variations of dust deposition in 13 cities of Xinjiang Vygur Autonomous Region |
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| Keywords: | Present environmental events ice core records |
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