| 金华市街道灰尘磁化率与交通因素的关系 |
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| 引用本文： | 赵庆磊,李凤全,王天阳,叶玮,朱丽东,刘龙华.金华市街道灰尘磁化率与交通因素的关系[J].地理研究,2014,33(4):635-642. |
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| 作者姓名： | 赵庆磊 李凤全 王天阳 叶玮 朱丽东 刘龙华 |
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| 作者单位： | 浙江师范大学地理与过程实验室, 浙江 金华 321004 |
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| 基金项目： | 国家自然科学基金项目（41071002，41371206） |
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| 摘 要： | 通过对浙江省金华市街道灰尘磁化率测试,从主干道与非主干道磁化率的对比、十字路口与非十字路口磁化率的比较以及磁化率与路网密度相关分析三个方面,定量研究金华市街道灰尘磁化率及其与交通因素的关系。结果表明:灰尘样品磁化率(χlf)变幅为127.57×10-8~853.91×10-8m3?kg-1,平均值为322.55×10-8m3?kg-1,高于本地土壤磁化率;频率磁化率变幅为0.67%~3.99%,平均值为1.61%;磁化率与频率磁化率呈负相关关系;主干道灰尘的磁化率大于非主干道,十字路口灰尘磁化率大于非十字路口;灰尘磁化率和路网密度呈正相关,金华市街道灰尘磁化率可以指示交通污染的分布状况。
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| 关 键 词： | 街道灰尘 磁化率 路网密度 金华市 |
| 收稿时间： | 2013-08-22 |
Study on the relationship between magnetic susceptibility of street dust and traffic factors in Jinhua City |
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| ZHAO Qinglei,LI Fengquan,WANG Tianyang,YE Wei,ZHU Lidong,LIU Longhua.Study on the relationship between magnetic susceptibility of street dust and traffic factors in Jinhua City[J].Geographical Research,2014,33(4):635-642. |
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| Authors: | ZHAO Qinglei LI Fengquan WANG Tianyang YE Wei ZHU Lidong LIU Longhua |
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| Institution: | Geography Process Laboratory, Zhejiang Normal University, Jinhua 321004, Zhejiang, China |
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| Abstract: | Through the measurement of magnetic susceptibility of street dust in Jinhua city, this paper makes a quantitative research on the relationship between magnetic susceptibility of street dust and traffic factors in Jinhua city in the three aspects of the magnetic susceptibility contrast between the main roads and the general roads, crossroads and noncrossroads, and the correlation analysis of magnetic susceptibility and density of road network. The results show that the magnetic susceptibility of dust samples ranged from 127.57×10-8 to 853.91×10-8 m3·kg-1, with a mean value of 322.55×10-8 m3·kg-1, which is higher than the magnetic susceptibility of local soil; the frequency dependent magnetic susceptibility varied from 0.67% to 3.99%, with an average of 1.61% . There is negative correlation between magnetic susceptibility and frequency dependent magnetic susceptibility. The magnetic susceptibility of dust on the main roads is higher than on the others, while that on crossroads is higher than on the others. There is positive correlation between the magnetic susceptibility of street dust and density of road network, and the magnetic susceptibility of street dust in Jinhua can indicate the distribution of traffic pollution. |
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