| 祁连山老虎沟12号冰川浅冰芯记录的气候环境信息 |
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| 引用本文： | 崔晓庆,任贾文,秦翔,杜文涛,孙维君,余光明,王泽斌,王晓香,孙维贞,王瑜.祁连山老虎沟12号冰川浅冰芯记录的气候环境信息[J].冰川冻土,2011,33(6):1251-1258. |
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| 作者姓名： | 崔晓庆 任贾文 秦翔 杜文涛 孙维君 余光明 王泽斌 王晓香 孙维贞 王瑜 |
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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冰冻圈科学国家重点实验室,甘肃兰州730000／祁连山冰川与生态环境综合观测研究站,甘肃兰州730000;中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,甘肃兰州,730000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2007CB411501);科技部科技基础性专项项目“中国冰川资源及其变化调查”(2006FY1102003);冰冻圈国家重点实验室自主课题(SKLCS-09-04)资助 |
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| 摘 要： | 2006年6月在祁连山西段大雪山的老虎沟12号冰川钻取了一支20.12m的浅冰芯,对冰芯中化学组成成分的浓度变化特征和来源分析进行了研究.结果表明,冰芯中δ18 O和可溶性离子含量变化均显示了明显的周期性变化,δ18 O与祁连山西段温度有很好的正相关关系.通过相关分析和HYS-PLIT后向轨迹分析表明,老虎沟12号冰川...
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| 关 键 词： | δ18O 老虎沟12号冰川 冰芯 气候 环境 可溶性离子 |
Climatic and Environmental Records within a Shallow Ice Core at Laohugou Glacier No.12,Qilian Mountains |
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| Institution: | CUI Xiao-qing1,2 REN Jia-wen1 QIN Xiang1,2 DU Wen-tao1,2 SUN Wei-jun1,2, YU Guang-ming1,2 WANG Ze-bin1 WANG Xiao-xiang1 SUN Wei-zhen1 WANG Yu1 (1.State Key Laboratory of Cryospheric Sciences,Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.Qilian Shan Station of Glaciology and Ecologic Environment,Lanzhou Gansu 730000,China) |
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| Abstract: | In June 2006,a shallow ice core,20.12 m in length,was recovered from an elevation of 5 040 m in the northern branch firn basin of the Laohugou Glacier No.12 in the western part of the Qilian Mountains.Concentrations of oxygen isotope(δ18O) and major soluble ions were determined.It is found that the relationship between the value of δ18O and air temperature in the west Qilian Mountains is positively correlated.Correlation analysis and backward trajectory model analysis show that the main soluble ions originate mainly from the arid and semi-arid sand-dust areas in Northwest China.However,besides the input of terrigenous material,part of Na+,Cl-and SO2——4 also originates from salt particles weathering from the numerous salt lakes around the plateau glacier areas. |
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| Keywords: | δ18O Laohugou Glacier No 12 ice core climate environment soluble ion |
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