| 乌鲁木齐大气降尘磁学特征及其环境意义 |
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| 引用本文： | 梁凯丽,聂燕,夏敦胜,王舒馨,许淑婧,王博,王向前.乌鲁木齐大气降尘磁学特征及其环境意义[J].中国沙漠,2014,34(5):1369-1375. |
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| 作者姓名： | 梁凯丽 聂燕 夏敦胜 王舒馨 许淑婧 王博 王向前 |
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| 作者单位： | 1. 兰州大学 资源环境学院, 甘肃 兰州 730000;2. 兰州大学 西部环境教育部重点实验室, 甘肃 兰州 730000 |
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| 基金项目： | 国家基础科学人才培养基金项目(J1210065);国家自然科学基金项目(41071125);教育部博士点科研基金项目(20100211110001)资助 |
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| 摘 要： | 应用环境磁学方法研究了2012年乌鲁木齐大气降尘磁学特征，并与该地区2006年大气降尘样品磁学特征进行对比，探讨乌鲁木齐城市化进程中的大气降尘磁学特征变化规律。结果表明：乌鲁木齐大气降尘样品磁性矿物以粗颗粒的PSD和MD磁铁矿为主导，同时含有少量的不完全反铁磁性矿物如赤铁矿。与2006年相比，2012年降尘样品的颗粒较粗，且在取暖期内亚铁磁性矿物含量较少。乌鲁木齐冬季取暖整治措施成效显著，但非采暖期大气整体质量相对2006年有所下降，影响乌鲁木齐城市大气质量的主要因素已经由冬季供暖向城市化的加快和工业的发展这两个因素转移。
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| 关 键 词： | 环境磁学 大气降尘 大气污染 乌鲁木齐 |
| 收稿时间： | 2013-08-21; |
| 修稿时间： | 2013-10-02 |
Magnetic Properties of Dustfall in Urumqi and Its Environmental Significance |
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| Liang Kaili,Nie Yan,Xia Dunsheng,Wang Shuxin,Xu Shujing,Wang Bo,Wang Xiangqian.Magnetic Properties of Dustfall in Urumqi and Its Environmental Significance[J].Journal of Desert Research,2014,34(5):1369-1375. |
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| Authors: | Liang Kaili Nie Yan Xia Dunsheng Wang Shuxin Xu Shujing Wang Bo Wang Xiangqian |
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| Institution: | 1. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China;2. Ministry of Education Key Laboratory of West China's Environmental System, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | This study discussed on the magnetic characteristics of dustfall in the process of urbanization by environmental magnetic analysis in Urumqi in 2012, and comparing with the data of 2006. The results show that the grain sizes of Urumqi dustfall samples are mainly coarse particles of PSD and MD, and contain a small amount of anti-ferromagnetic minerals such as hematite. The grain sizes are coarser in 2012 than that of 2006 during the heating period. Air quality in Urumqi in 2012 non-heating period declined compared to 2006, which indicates winter pollution control has been successful in Urumqi. The main factors affecting urban air quality in Urumqi has been transferred from coal burning to urbanization and industry. |
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| Keywords: | environmental magnetism dustfall air pollution Urumqi |
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