| 南昌市大气硫沉降的空间变化和来源 |
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| 引用本文： | 朱仁果,肖化云,谢志英,吴亮红,吴代赦.南昌市大气硫沉降的空间变化和来源[J].安徽农业科学,2010,38(13):6787-6789. |
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| 作者姓名： | 朱仁果 肖化云 谢志英 吴亮红 吴代赦 |
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| 作者单位： | 南昌大学环境与化学工程学院,江西南昌,330031;南昌大学环境与化学工程学院,江西南昌,330031;中国科学院地球化学研究所国家环境地球化学国家重点实验室,贵州贵阳,550002 |
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| 摘 要： | 目的]探讨苔藓组织硫含量和雨水硫酸根浓度的相关性及南昌市大气硫的来源。方法]在南昌市南昌大学北区、南昌大学前湖校区、电厂、梅岭4个采样点采集石生细叶小羽藓Bryohaplocladium microphyllum（Hedw.）R.Watanabe et Iwats]样品29个,并在南昌电厂采集煤样9个,然后测定苔藓组织和煤的硫含量和硫同位素值。结果]南昌大学北区苔藓组织硫含量（0.45%±0.059%）高于南昌大学苔藓组织硫含量（0.26%±0.002%）,能反映南昌市雨水硫酸根浓度变化规律。南昌市苔藓硫同位素的变化范围是-0.64‰～9.71‰,其中南昌市市郊梅岭苔藓组织硫同位素值最高（4.02‰～9.71‰）,明显高于南昌大学前湖校区（0.55‰～0.56‰）和电厂苔藓组织硫同位素值（-0.64‰～0.45‰）。结论]对苔藓组织硫含量和硫同位素值相关性的研究表明,南昌市大气硫源主要受到中国北方远距离传输硫和生物成因硫的共同影响。
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| 关 键 词： | 苔藓组织 雨水 硫含量 硫同位素值 |
Spatial Variation and Sources of Atmospheric Sulfur Deposition in Nanchang |
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| Institution: | ZHU Ren-guo et al (Environmental and Chemical Engineering College,Nanchang University,Nanchang,Jiangxi 330031) |
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| Abstract: | Objective]The paper aimed to discuss the relationship between sulfur contents of mosses and the concentration of SO42- and the source of Atmospheric sulfur in Nanchang. Method]29 moss samples (Bryohaplocladium microphyllum (Hedw.)R.Watanabe et Iwats) were collected from four sampling points,including North campus and Qianhu campus of Nanchang University,power station,Meiling,and the sulfur contents and sulphur isotope of mosses tissues of 9 coal samples collected from Nanchang Power Station were determined.Result]The results showed that sulfur contents of mosses tissues in North campus of Nanchang University (0.45±0.059%) were higher than Qianhu campus of Nanchang University(0.26±0.002%),which coincided with the changing law of the concentration of SO42-. Sulphur isotope of mosses tissues was -0.64‰-9.71‰. Sulphur isotope of mosses tissues in Meling(4.02‰-9.71‰) was higher than Qianhu campus of Nanchang University(0.55‰-0.56‰) and power plant(-0.64‰-0.45‰). Conclusion]Relationship between sulphur contents and sulphur isotopes of mosses tissues showed sulfur source of sulphur deposition in Nanchang city was mainly affected by 34S-enriched sulphur transported from northerly air masses and biogenic sulfur. |
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| Keywords: | Mosses tissues Rain Suphur contents Sulphur isotopes |
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