Seasonality of the altitude effect on leaf wax n-alkane distributions, hydrogen and carbon isotopes along an arid transect in the Qinling Mountains
文献类型：期刊论文
| 作者 | Liu, Jinzhao1,2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-07-15 |
| 卷号 | 778页码:9 |
| 关键词 | Altitude Leaf wax hydrogen isotope Leaf wax carbon isotope Paleoelevation |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.146272 |
| 通讯作者 | Liu, Jinzhao(liujinzhao@ieecas.cn) |
| 英文摘要 | Reconstructing paleoelevation allows the temporal evolution of biogeochemical processes and hydroclimate regimes to be understood and quantified. A dual-isotope biomarker of clumped hydrogen and carbon isotopes of leaf wax n-alkanes was recently proposed in humid tropical forests, and it was proven to be superior to a single-isotope proxy that was previously reported. However, it remains unknown whether the dual-isotope biomarker is suitable in arid conditions. The present study investigated leaf wax n-alkane distribution, hydrogen (delta H-2(wax)) and carbon (delta C-13(wax)) isotopes in terrestrial plants along an arid mountainous transect. We found that the effects of seasonality on n-alkane distribution, delta H-2(wax) and delta C-13(wax) were minimal for all species (p > 0.05), and that species-specific delta H-2(wax) values remained almost unchanged for most species, in contrast to delta C-13(wax) values. Significant correlations between altitude and delta H-2(wax) values (R-2 = 0.54, 0.58, and 0.75 for spring, summer, and autumn, respectively), instead of delta C-13(wax) values (R-2 = 0.08, 0.43, and 0.12 with p = 0.24, 0.01, and 0.19 for spring, summer, and autumn, respectively), were observed, suggesting that delta H-2(wax) values, but not delta C-13(wax) values, can be reliably used as a proxy for reconstructing paleoelevation in arid conditions. Therefore, it will be necessary to identify other proxies to supplement delta H-2(wax) values under a dual-isotope approach in future research. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | DELTA-D VALUES ; DIALKYL GLYCEROL TETRAETHER ; TIBETAN PLATEAU ; PLANTS IMPLICATIONS ; TERRESTRIAL ; SOIL ; PRECIPITATION ; LIPIDS ; DETERMINANTS ; BIOMARKERS |
| 资助项目 | Chinese Academy of Sciences[ZDBS-LY-DQC033] ; Chinese Academy of Sciences[XAB2019B02] ; National Natural Science Foundation of China[42073017] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000655712300016 |
| 出版者 | ELSEVIER |
| 资助机构 | Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/16720]  |
| 专题 | 地球环境研究所_古环境研究室 第四纪科学与全球变化卓越创新中心 |
| 通讯作者 | Liu, Jinzhao |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jinzhao. Seasonality of the altitude effect on leaf wax n-alkane distributions, hydrogen and carbon isotopes along an arid transect in the Qinling Mountains[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,778:9. |
| APA | Liu, Jinzhao.(2021).Seasonality of the altitude effect on leaf wax n-alkane distributions, hydrogen and carbon isotopes along an arid transect in the Qinling Mountains.SCIENCE OF THE TOTAL ENVIRONMENT,778,9. |
| MLA | Liu, Jinzhao."Seasonality of the altitude effect on leaf wax n-alkane distributions, hydrogen and carbon isotopes along an arid transect in the Qinling Mountains".SCIENCE OF THE TOTAL ENVIRONMENT 778(2021):9. |
入库方式： OAI收割
来源：地球环境研究所
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