| 乌鲁木齐河源1号冰川雪-冰界面含氮离子迁移研究 |
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| 引用本文： | 王圣杰,张明军,王飞腾,李忠勤,张晓宇.乌鲁木齐河源1号冰川雪-冰界面含氮离子迁移研究[J].地球学报,2011,32(6):699-706. |
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| 作者姓名： | 王圣杰 张明军 王飞腾 李忠勤 张晓宇 |
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| 作者单位： | 西北师范大学地理与环境科学学院;西北师范大学地理与环境科学学院；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/天山冰川站;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/天山冰川站;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/天山冰川站；西北师范大学地理与环境科学学院;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/天山冰川站 |
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| 基金项目： | 国家自然科学基金项目(编号: 41161012、40701035)；教育部新世纪优秀人才支持计划项目(编号: NCET-10-0019)；国家重点基础研究发展计划(973)项目(编号: 2010CB951003)；中国科学院知识创新工程重要方向项目(编号: KZCX2-EW-311)；冰冻圈科学国家重点实验室自主基金项目(编号: SKLCS-ZZ-2010-04) |
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| 摘 要： | 冰川积累区雪-冰界面附近的化学物质迁移对冰芯记录的形成具有重要意义,为讨论主要含氮离子在这一界面的迁移,本研究基于2004年11月至2006年3月在天山乌鲁木齐河源1号冰川连续采集的64组雪冰样品分析了NO3与NH4+的变化情况.结果表明,雪层底部干季(11月至翌年3月)含氮离子浓度的平均值高于湿季(4-10月)的,而...
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| 关 键 词： | 乌鲁木齐河源1号冰川 硝酸根(NO3-) 铵根(NH4+) 雪-冰界面 |
Observed Nitrogen-Containing Ion Transportation at the Firn-Ice Interface of the Urumqi Glacier No. 1 in Tianshan Mountains |
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| WANG Sheng-jie,ZHANG Ming-jun,WANG Fei-teng,LI Zhong-qin and ZHANG Xiao-yu.Observed Nitrogen-Containing Ion Transportation at the Firn-Ice Interface of the Urumqi Glacier No. 1 in Tianshan Mountains[J].Acta Geoscientia Sinica,2011,32(6):699-706. |
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| Authors: | WANG Sheng-jie ZHANG Ming-jun WANG Fei-teng LI Zhong-qin and ZHANG Xiao-yu |
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| Institution: | WANG Sheng-jie 1),ZHANG Ming-jun 1,2),WANG Fei-teng 2),LI Zhong-qin 2,1),ZHANG Xiao-yu 2) 1)College of Geography and Environment Sciences,Northwest Normal University,Lanzhou,Gansu 730070,2)State Key Laboratory of Cryospheric Sciences/Tianshan Glaciological Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Gansu 730000 |
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| Abstract: | In order to investigate the nitrogen-bearing ion transportation at the firn-ice interface in the accumulation zone of glacier, the authors collected 64 sets of firn and ice samples at the Urumqi Glacier No. 1 in the Tianshan Mountains from November 2004 to March 2006, and analyzed the concentrations of nitrate (NO3-) and ammonium (NH4+).The results indicated that the mean ion concentration at firn bottom was higher in the dry season (from November to March) than that in the wet season (from April to October), and the mean ion concentration at the ice top was higher in the wet season than that in the dry season, which was observed at the firn-ice interface with the widths of 5 cm and 15 cm, respectively; the mean concentration ratio of ions between the firn bottom and the ice top in the dry season was generally higher than that in the wet season, suggesting that during the dry season the concentration at the firn bottom was generally higher than that at the ice top, whereas during the wet season the situation was quite opposite; the ion transportation at the firn-ice interface constituted a process of recording the environmental information, which was influenced by the melt water of snowpack, air temperature and some other factors. |
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| Keywords: | Urumqi Glacier No 1 nitrate NO3-) ammonium (NH4+) firn-ice interface |
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