Nitrogen isotope variations in camphor (Cinnamomum Camphora) leaves of different ages in upper and lower canopies as an indicator of atmospheric nitrogen sources
文献类型：期刊论文
| 作者 | Cong-Qiang Liu; Yan-Li Wang; Ren-Guo Zhu; Liang-Hong Wu; Hua-Yun Xiao |
| 刊名 | Environmental Pollution
 |
| 出版日期 | 2011 |
| 卷号 | 159期号:2页码:363-367 |
| 关键词 | Δ15n Atmospheric Nitrogen Soil Nitrogen Age Canopy Leaf Camphor |
| 英文摘要 | Nitrogen isotopic composition of new, middle-aged and old camphor leaves in upper and lower canopies has been determined in a living area, near a motorway and near an industrial area (Jiangan Chemical Fertilizer Plant). We found that at sites near roads, more positive δ15N values were observed in the camphor leaves, especially in old leaves of upper canopies, and ∆δ15N = δ15Nupper − δ15Nlower > 0, while those near the industrial area had more negative δ15N values and ∆δ15N < 0. These could be explained by two isotopically different atmospheric N sources: greater uptake from isotopically heavy pools of atmospheric NOx by old leaves in upper canopies at sites adjacent to roads, and greater uptake of 15N-depleted NHy in atmospheric deposition by leaves at sites near the industrial area. This study presents novel evidence that 15N natural abundance of camphor leaves can be used as a robust indicator of atmospheric N sources. |
| 学科主题 | 环境地球化学 |
| 语种 | 英语 |
| 公开日期 | 2017-12-29 |
| 源URL | [http://ir.gyig.ac.cn:8080/handle/352002/7014]  |
| 专题 | 地球化学研究所_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 |
| 推荐引用方式 GB/T 7714 | Cong-Qiang Liu,Yan-Li Wang,Ren-Guo Zhu,et al. Nitrogen isotope variations in camphor (Cinnamomum Camphora) leaves of different ages in upper and lower canopies as an indicator of atmospheric nitrogen sources[J]. Environmental Pollution,2011,159(2):363-367. |
| APA | Cong-Qiang Liu,Yan-Li Wang,Ren-Guo Zhu,Liang-Hong Wu,&Hua-Yun Xiao.(2011).Nitrogen isotope variations in camphor (Cinnamomum Camphora) leaves of different ages in upper and lower canopies as an indicator of atmospheric nitrogen sources.Environmental Pollution,159(2),363-367. |
| MLA | Cong-Qiang Liu,et al."Nitrogen isotope variations in camphor (Cinnamomum Camphora) leaves of different ages in upper and lower canopies as an indicator of atmospheric nitrogen sources".Environmental Pollution 159.2(2011):363-367. |
入库方式： OAI收割
来源：地球化学研究所
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