地球学报2011，Vol.32Issue(6)：699-706,8.DOI:10.3975/cagsb.2011.06.07
乌鲁木齐河源1号冰川雪-冰界面含氮离子迁移研究
Observed Nitrogen-Containing Ion Transportation at the Firn-Ice Interface of the Urumqi Glacier No.1 in Tianshan Mountains
摘要
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.关键词
乌鲁木齐河源1号冰川/硝酸根(NO3-)/铵根(NH4+)/雪-冰界面Key words
Urumqi Glacier No. 1/ nitrate (NO3-)/ ammonium (NH4+)/ firn-ice interface分类
天文与地球科学引用本文复制引用
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):699-706,8.基金项目
本文由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)联合资助. （编号:41161012、40701035）
