天山乌鲁木齐河源1号冰川大气气溶胶和新雪中可溶性离子关系研究

doi:10.13249/j.cnki.sgs.2010.01.141

地理科学 ›› 2010, Vol. 30 ›› Issue (1): 141-148.doi: 10.13249/j.cnki.sgs.2010.01.141

天山乌鲁木齐河源1号冰川大气气溶胶和新雪中可溶性离子关系研究

张明军^1,2, 周平¹, 李忠勤^2,1, 赵淑惠², 金爽¹

1. 西北师范大学地理与环境科学学院, 甘肃兰州 730070;
2. 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, 甘肃兰州 730000

收稿日期:2009-02-03 修回日期:2009-06-07 出版日期:2010-01-20 发布日期:2010-01-20
作者简介:张明军(1974- ),男,甘肃宁县人,教授,主要从事冰川与环境方面的研究工作。E-mail:mjzhang2004@163.com
基金资助:
国家自然科学基金项目(40701035, 40631001, 40571033)、霍英东教育基金(101019)、陇原青年创新人才扶持计划、西北师范大学知识与科技创新工程科研骨干培育项目(NWNU-KJCXGC-03-45)资助。

Relationships Between Aerosol and Snow Chemistry on Glacier No.1 at Urumqi River Head, Eastern Tianshan Mountains, China

ZHANG Ming-jun^1,2, ZHOU Ping¹, LI Zhong-qin^2,1, ZHAO Shu-hui², JIN Shuang¹

1. College of Geography and Environment Science, Northwest Normal University, Lanzhou, Gansu 730070;
2. The State Key Laboratory of Cryospheric Sciences/Tianshan Glaciological Station, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000

Received:2009-02-03 Revised:2009-06-07 Online:2010-01-20 Published:2010-01-20

摘要/Abstract

摘要： 在2007年4月、8月和10月三个时段内,分昼夜采集了23个气溶胶样品和7个新降雪样品,对样品中的可溶性离子进行了分析。结果表明,乌鲁木齐河源1号冰川(以下简称1号冰川)春、夏、秋三个季节气溶胶平均载量为86.22 neq/m³,分析显示1号冰川存在NH₄HSO₄和(NH₄)₂SO₄气溶胶,并有少量NH₄NO₃气溶胶存在。气溶胶和新雪样品中可溶性离子成分变化趋势相似,气溶胶浓度升高,新雪样品的浓度也会有所升高,反之亦然。气溶胶和新雪中Ca²⁺、Mg²⁺、Na⁺、Cl^-、K⁺的相关性很好,说明雪中这些离子的浓度基本能反映大气中的状况;对气相和颗粒相并存的NH₄⁺和NO₃^-来说,雪中的离子浓度和大气中的离子浓度不相关。

Abstract: Simultaneous samples of aerosol and fresh snow were collected at Glacier No. 1 (4100 m a. s.l.), Tianshan Mountains, between April 16 to 23, August 5 to 14, and October 10 to 24, 2007. Aerosol and snow chemistry (including the species of Na+, NH₄^+, K⁺, Mg²⁺, Ca²⁺, Cl^-, NO₃^- and SO₄^2-) is analyzed and discussed. Major ion concentrations in aerosol samples change heavily with the total ionic burden averaging 86.22 neq/m^-3 at standard temperature and pressure (STP). Interspecies aerosol relationships indicate the presence of NH₄HSO₄ and (NH₄)₂SO₄ aerosol at Glacier No. 1 also with NH₄NO₃. High scavenging ratio values are found for all species except SO₄^2-. Periods of increased concentrations in the aerosol are generally reflected by increased concentrations in the snow, and vice versa. Correlation coefficients between aerosol and snow for Ca²⁺, Mg²⁺, Na⁺, Cl^-, K⁺ show that snow chemistry basically reflects changes in the chemistry of the atmosphere. There are no significant correlations between aerosol and snow samples for NH₄⁺, NO₃^- and low correlation coefficient for SO₄^2-.

中图分类号:

X142

张明军, 周平, 李忠勤, 赵淑惠, 金爽. 天山乌鲁木齐河源1号冰川大气气溶胶和新雪中可溶性离子关系研究[J]. 地理科学, 2010, 30(1): 141-148.

ZHANG Ming-jun, ZHOU Ping, LI Zhong-qin, ZHAO Shu-hui, JIN Shuang. Relationships Between Aerosol and Snow Chemistry on Glacier No.1 at Urumqi River Head, Eastern Tianshan Mountains, China[J]. SCIENTIA GEOGRAPHICA SINICA, 2010, 30(1): 141-148.

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天山乌鲁木齐河源1号冰川大气气溶胶和新雪中可溶性离子关系研究

Relationships Between Aerosol and Snow Chemistry on Glacier No.1 at Urumqi River Head, Eastern Tianshan Mountains, China

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