格尔木地区沙尘气溶胶硝酸盐含量及来源

盛阳; 杨胜利; 韩永翔; 郑秋凤; 方小敏

doi:10.7522/j.issn.1000-694X.2015.00054

中国沙漠 >

2016 , Vol. 36 >Issue 3: 792 - 797

DOI: https://doi.org/10.7522/j.issn.1000-694X.2015.00054

天气与气候

格尔木地区沙尘气溶胶硝酸盐含量及来源

盛阳 ,
杨胜利 ,
韩永翔 ,
郑秋凤 ,
方小敏

展开

1. 南京师范大学地理科学学院/江苏省环境演变与生态建设重点实验室实验室, 江苏南京 210023;
2. 兰州大学西部环境教育部重点实验室/资源环境学院, 甘肃兰州 730000;
3. 南京信息工程大学大气物理学院, 江苏南京 210044;
4. 中国科学院青藏高原研究所, 北京 100101

盛阳(1991-),女,湖南益阳人,硕士研究生,研究方向为大气沙尘与环境变化。Email:shengyang1220@126.com

收稿日期: 2015-01-09

修回日期: 2015-02-11

网络出版日期: 2016-05-20

基金资助

国家自然科学基金项目(40972122);江苏高校优势学科建设工程项目

收起

The Concentrations and Sources of Nitrate in Aerosol over Golmud, Qinghai, China

Sheng Yang ,
Yang Shengli ,
Han Yongxiang ,
Zheng Qiufeng ,
Fang Xiaomin

Expand

1. School of Geographical Science/Key Laboratory of Environmental Evolution and Ecological Construct of Jiangsu Province, Nanjing Normal University, Nanjing 210023, China;
2. MOE Key Laboratory of Western China's Environmental Systems/College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China;
3. School of Atmospheric Physics, Nanjing University of Information Science& Technology, Nanjing 210044, China;
4. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China

Received date: 2015-01-09

Revised date: 2015-02-11

Online published: 2016-05-20

Fold

摘要

沙尘气溶胶中硝酸盐的含量和来源对于全球氮排放估算具有重要意义。为了探讨格尔木沙尘气溶胶中硝酸盐的含量和来源,我们在格尔木2008年沙尘过程多发期1-6月进行了连续观测,并对收集的沙尘气溶胶样品进行了详细的水溶性离子色谱分析。结果显示:沙尘天气的大气总悬浮颗粒物(TSP)平均浓度及NO₃^-平均浓度分别为2 015.94 μg·m^-3和1.8 μg·m^-3,非沙尘天气两者平均浓度分别为274.68 μg·m^-3和0.74 μg·m^-3。观测期间,格尔木NO₃^-浓度和TSP浓度存在明显的季节变化,NO₃^-和TSP浓度变化均为春季>夏季>冬季。TSP与NO₃^-浓度的相关系数为0.67,春季两者相关系数为0.71,且Ca²⁺与NO₃^-浓度显著相关,推测格尔木沙尘气溶胶中NO₃^-离子可能主要来源于干旱区的地表物质。非沙尘天气期间NO₃^-/TSP浓度比值高于沙尘天气,且分布较为分散,表明非沙尘天气NO₃^-浓度受到人为源或气象条件的影响。

关键词： 沙尘气溶胶; 离子分析; 硝酸盐; 格尔木

本文引用格式

盛阳 , 杨胜利 , 韩永翔 , 郑秋凤 , 方小敏 . 格尔木地区沙尘气溶胶硝酸盐含量及来源[J]. 中国沙漠, 2016 , 36(3) : 792 -797 . DOI: 10.7522/j.issn.1000-694X.2015.00054

Abstract

The study of particulate nitrate in the ambient air in continental area is of great importance to estimate the global nitrogen emission. To investigate the concentrations and sources of particulate nitrate in aerosol in the northern Tibetan Plateau, the water soluble(WS)nitrates were analyzed by ion chromatography for total suspended particulate(TSP)collected in Golmud from January to June, 2008. The average concentrations of TSP and the WS NO₃^- are 2 015.94 μg·m^-3 and 1.8 μg·m^-3 under dust condition, with 274.68 μg·m^-3 and 0.74 μg·m^-3 under non-dust condition, respectively. The concentrations of TSP and the WS NO₃^- show distinctive seasonal variations with a trend of spring>summer>winter. The correlation of the WS NO₃^- and TSP are quite obvious with a coefficient of r=0.67 for all samples and r=0.71 for the samples of spring in 2008. And the concentrations of NO₃^- have significant correlation with Ca²⁺. Thus we infer that the dust processes have mainly effects on the concentrations of the WS NO₃^-, and the surface soil should be the main sources for particulate nitrate. The ratios of NO₃^-/TSP are higher in dust samples than that of in non-dust samples, and the ratioes are scattered in non-dust samples. It indicates that the WS NO₃^- may mainly be affected by anthropogenic sources and local weather in non-dust conditions in Goumud.

Key words： dust aerosol; ionic analysis; nitrate; Golmud

参考文献

[1] 唐孝炎.大气环境化学[M].北京:高等教育出版社,1980:164-165.
[2] Galloway J N,Dentener F J,Capone D G,et al.Nitrogen cycles:past,present,and future[J].Biogeochemistry,2004,70(2):153-226.
[3] Matson P,Lohse K A,Hall S J.The globalization of nitrogen deposition:consequences for terrestrial ecosystems[J].Ambio,2002,31(2):113-119.
[4] Liu X,Zhang Y,Han W,et al.Enhanced nitrogen deposition over China[J].Nature,2013,494(7438):459-463.
[5] IPCC.Climate Change 2007:The Physical Science Basis[R/OL].http://www.ipcc.ch/publications_and_data/ar4/wg1/en/contents.html.
[6] Huang Y,Dickinson R E,Chameides W L.Impact of aerosol indirect effect on surface temperature over East Asia[J].Proceedings of the National Academy of Sciences,2006,103(12):4371-4376.
[7] Zhao C,Tie X,Lin Y.A possible positive feedback of reduction of precipitation and increase in aerosols over eastern central China[J].Geophysical research letters,2006,33:L11814.
[8] Prospero J M,Savoie D L.Effect of continental sources on nitrate concentrations over the Pacific[J].Nature,1989,339(29):687-689.
[9] 李忠勤,姚檀栋,谢自楚.大气气溶胶中NO₃^-、SO₄^2-研究[J].地球科学进展,1995,10(3):289-295.
[10] Talbot R W,Andreae T W,Andreae R C.Regional aerosol chemistry of the Amazon Basin during the dry season[J].Journal of Geophysical Research-Atmospheres,1988,93(D2):1499-1508.
[11] Wu F,Zhang D Z,Cao J J,et al.Background-like nitrate in desert air[J].Atmospheric Environment,2014,84(2014):39-43.
[12] 王金艳.沙尘模式优化与东亚沙尘天气量化分级研究[D].兰州:兰州大学,2006.
[13] 杨东贞,于晓岚,房秀梅,等.区域站和基准站气溶胶的分析[J].应用气象学报,1996,7(4):396-405.
[14] 李娟.中亚地区沙尘气溶胶的理化特性、来源、长途传输及其对全球变化的可能影响[D].上海:复旦大学,2009.
[15] 沈振兴.中国北方粉尘气溶胶的矿物组成[D].北京:中国科学院研究生院,2004.
[16] 张代州.北京市区大气中单个硝酸盐粒子的特征[J].大气科学,1996,20(4):408-413.
[17] Feig G T,Mamtimin B,Meixner F X.Soil biogenic emissions of nitric oxide from a semi-arid savanna in South Africa[J].Biogeosciences,2008,5:1723-1738.
[18] Schumann U,Huntrieser H.The global lightning-induced nitrogen oxides source[J].Atmospheric Chemistry and Physics,2007,7:3823-3907.
[19] Choi J C,Lee M H,Chun Y S,et al.Chemical Composition and Source Signature of Spring Aerosol in Seoul,Korea[J].Journal of Geophysical Research,2001,106:18067-18074.
[20] Shen Z X,Wang X,Zhang R J,et al.Chemical composition of water-soluble ions in spring aerosol at a semi-arid site of Tongyu,China[J].Aerosol and Air Quality Research,2011,10:60-368.
[21] 苟日多杰.柴达木盆地沙尘暴气候特征及其预报[J].气象科技,2003,31(2):84-87.
[22] Russell A G,McRae G J,Cass G R.Mathematical modeling of the formation and transport of ammonium nitrate aerosol[J].Atmospheric Environment,1983,17:949-964.
[23] Yabuki S,Mikami M,Nakamura M,et al.The characteristics of atmospheric aerosol at Aksu,an Asian dust-source region of North-West China:a summary of observations over the three years from March 2001 to April 2004[J].Journal of the Meteorological of Japan,2005,83A:45-72.
[24] Arimoto R,Zhang X Y,Huebert B J,et al.Chemical composition of atmospheric aerosols from Zhenbeitai,China,and Gosan,South Korea,during ACE-Asia[J].Journal of Geophysical Research,2004,109:D19S04.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献