| Elemental composition in surface snow from the ultra-high elevation area of Mt. Qomolangma （Everest） |
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| 作者姓名： | ZHANG QiangGong ;KANG ShiChang ;CONG ZhiYuan ;HOU ShuGui ;LIU YongQin |
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| 作者单位： | [1]Institute of Tibetan Plateau Research, Chinese Academy of Sciences CAS, Beijing 100085, China; [2]Graduate University of CAS, Beijing 100049, China; [3]State Key Laboratory of Cryospheric Science, CAS, Lanzhou 730000, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （Grant Nos. 40401054, 90411003 and 40121101）, the National Basic Research Program of China （Grant No.2005CB422004）, Social Commonweal Research Project of Ministry of Science and Technology of China （Grant No.2005DIA3JI06） ,the ＂Talent Project＂ and Innovation Project （Grant No.KZCX3-SW-334/339） of CAS, and Dean Foundation of CAS
The authors thank mountain climbing and mapping team for sampling and Dr. Gao D Y for lab work assistance. |
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| 摘 要： | A total of 14 surface snow （0-10 cm） samples were collected along the climbing route （6500-8844 m a.s.h） on the northern slope of Mt. Qomolangma in May, 2005. Analysis of elemental concentrations in these samples showed that there are no clear trends for element variations with elevation due to redistribution of surface snow by strong winds during spring. In addition, local crustal aerosol inputs also have an influence on elemental composition of surface snow. Comparison between elemental concentration datasets of 2005 and 1997 indicated that data from 2005 were of higher quality. Elemental concentrations （especially for heavy metals） at Mt. Qomolangma are comparable with polar sites, and far lower than large cities. This indicates that anthropogenic activities and heavy metal pollution have little effect on the Mt. Qomolangma atmospheric environment, which can be representative of the background atmospheric environment.
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| 关 键 词： | 珠穆朗玛峰 超高海拔 表面积雪 攀登路线 |
| 收稿时间： | 28 February 2007 |
| 修稿时间： | 30 July 2007 |
Elemental composition in surface snow from the ultra-high elevation area of Mt. Qomolangma (Everest) |
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| ZHANG QiangGong,;KANG ShiChang,;CONG ZhiYuan,;HOU ShuGui,;LIU YongQin.Elemental composition in surface snow from the ultra-high elevation area of Mt. Qomolangma (Everest)[J].Chinese Science Bulletin,2008,53(2):289-294. |
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| Authors: | QiangGong Zhang ShiChang Kang ZhiYuan Cong ShuGui Hou YongQin Liu |
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| Institution: | [1]Institute of Tibetan Plateau Research, Chinese Academy of Sciences CAS, Beijing 100085, China [2]Graduate University of CAS, Beijing 100049, China [3]State Key Laboratory of Cryospheric Science, CAS, Lanzhou 730000, China |
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| Abstract: | A total of 14 surface snow (0–10 cm) samples were collected along the climbing route (6500–8844 m a.s.l.) on the northern
slope of Mt. Qomolangma in May, 2005. Analysis of elemental concentrations in these samples showed that there are no clear
trends for element variations with elevation due to redistribution of surface snow by strong winds during spring. In addition,
local crustal aerosol inputs also have an influence on elemental composition of surface snow. Comparison between elemental
concentration datasets of 2005 and 1997 indicated that data from 2005 were of higher quality. Elemental concentrations (especially
for heavy metals) at Mt. Qomolangma are comparable with polar sites, and far lower than large cities. This indicates that
anthropogenic activities and heavy metal pollution have little effect on the Mt. Qomolangma atmospheric environment, which
can be representative of the background atmospheric environment.
Supported by the National Natural Science Foundation of China (Grant Nos. 40401054, 90411003 and 40121101), the National Basic
Research Program of China (Grant No.2005CB422004), Social Commonweal Research Project of Ministry of Science and Technology
of China (Grant No.2005DIA3J106),the “Talent Project” and Innovation Project (Grant No.KZCX3-SW-334/339) of CAS, and Dean
Foundation of CAS |
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| Keywords: | Mt Qomolangma ultra-high elevation surface snow elemental concentration |
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