| Sulfur isotopic signatures of water-soluble sulfate in needles of Pinus Massoniana Lamb in two Chinese areas | |
| Hui Guan, Hua-yun Xiao; Cong-qiang Liu | |
| 2015 | |
| Source Publication | Environmental Earth Sciences
 |
| Volume | 73Issue:4Pages:1805-1811 |
| Abstract | This study analyzed the water-soluble sulfate (S-SO4) and total sulfur (S-T) concentrations and their isotopic signatures (delta S-34(SO4) and delta S-34(T)) in needles of Pinus massoniana Lamb collected from Guiyang (seriously affected by acid rain) and Yunnan areas (acid rain did not occur), China SW. The results indicated that the S-SO4 concentrations in needles of Pinus massoniana Lamb collected from several Chinese areas were found to be significantly correlated to ambient sulfur dioxide (R (2) = 0.9176, p = 0.01), showing that S-SO4 concentrations in needles were more reliable to indicate atmospheric sulfur. The average delta S-34(SO4) (-7.2 aEuro degrees) and delta S-34(TS) (-5.1 aEuro degrees) in needles in Guiyang areas were significantly lower than those in Yunnan areas (+3.9 and +5.7 aEuro degrees, respectively), which were in accordance with the lower delta S-34 of coals in Guiyang areas than in Yunnan areas. The delta S-34(SO4) and delta S-34(TS) in needles became less positive with a distance from a plant combusted S-34-enriched coals while for another plant combusted S-34-depleted coals, more positive was observed. These results indicated that delta S-34(SO4) in needles was also a good indicator of atmospheric sulfur sources. A very small difference between delta(34) S-T and delta(34) S-SO4 for most needle samples suggested that little isotopic fractionation accompanies sulfur assimilation processes. |
| Keyword | Pinus Massoniana Lamb Needles Water-soluble Sulfate Total Sulfur Δ34s Source Discrimination |
| Subject Area | 环境地球化学 |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/5992 |
| Collection | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 |
| Recommended Citation GB/T 7714 | Hui Guan, Hua-yun Xiao,Cong-qiang Liu. Sulfur isotopic signatures of water-soluble sulfate in needles of Pinus Massoniana Lamb in two Chinese areas[J]. Environmental Earth Sciences,2015,73(4):1805-1811. |
| APA | Hui Guan, Hua-yun Xiao,&Cong-qiang Liu.(2015).Sulfur isotopic signatures of water-soluble sulfate in needles of Pinus Massoniana Lamb in two Chinese areas.Environmental Earth Sciences,73(4),1805-1811. |
| MLA | Hui Guan, Hua-yun Xiao,et al."Sulfur isotopic signatures of water-soluble sulfate in needles of Pinus Massoniana Lamb in two Chinese areas".Environmental Earth Sciences 73.4(2015):1805-1811. |
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