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地理科学 >

2010 , Vol. 30 >Issue 1: 141 - 148

DOI: https://doi.org/10.13249/j.cnki.sgs.2010.01.141

论文

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

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  • 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
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

收稿日期: 2009-02-03

  修回日期: 2009-06-07

  网络出版日期: 2010-01-20

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。

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

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  • 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 date: 2009-02-03

  Revised date: 2009-06-07

  Online published: 2010-01-20

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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。

本文引用格式

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 . DOI: 10.13249/j.cnki.sgs.2010.01.141

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 SO42-) 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 SO42-. 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 SO42-.

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