Branched and isoprenoid tetraether (BIT) index traces water content along two marsh-soil transects surrounding Lake Qinghai: Implications for paleo-humidity variation
文献类型：期刊论文
| 作者 | He, YX (He, Yuxin)[ 6 ]; Liu, ZH (Liu, Zhonghui)[ 6 ]; Zhang, CLL (Zhang, Chuanlun L.)[ 4,5 ]; Liu, WG (Liu, Weiguo)[ 1,3 ]; Wang, HY (Wang, Huanye)[ 1,2 ] |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2013-06-30 |
| 卷号 | 59页码:75-81 |
| DOI | 10.1016/j.orggeochem.2013.03.011 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The BIT index represents the relative abundances of branched glycerol dialkyl glycerol tetraethers (bGDGTs) and the isoprenoid GDGT, crenarchaeol. While bGDGTs are produced mainly by soil (anaerobic) bacteria, crenarchaeol is known to be a biomarker for aerobic ammonia oxidation by chemolithoauto-trophic Thaumarchaeota, particularly in the open ocean or lakes. Thus, the index in marine and lacustrine settings has been widely used as a proxy for soil input. Here, we have investigated GDGT distribution along two transects extending from the lake shore marsh to upland soils on the NE Qinghai-Tibetan plateau. The results show that soil water content (SWC) correlates positively with concentration of bGDGTs and negatively with concentration of crenarchaeol; consequently, there is a significant positive correlation between SWC and the BIT index. Our study highlights a new potential application of BIT as a humidity proxy in loess/soil and peat deposits. |
| 语种 | 英语 |
| 源URL | [http://ir.ieecas.cn/handle/361006/10005]  |
| 专题 | 地球环境研究所_加速器质谱中心 |
| 通讯作者 | Liu, WG (Liu, Weiguo)[ 1,3 ] |
| 作者单位 | 1.School of Human Settlement and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China; 2.State Key Laboratory of Marine Geology, School of Ocean of Earth Sciences, Tongji University, Shanghai 200092, China; 3.Department of Marine Sciences, The University of Georgia, Athens, GA 30602, USA; 4.Department of Earth Sciences, The University of Hong Kong, Hong Kong, China 5.State Key Laboratory of Loess and Quaternary Geology, IEE, CAS, Xi’an 710075, China; 6.Graduate School of Chinese Academy of Sciences, Beijing 100049, China; |
| 推荐引用方式 GB/T 7714 | He, YX ,Liu, ZH ,Zhang, CLL ,et al. Branched and isoprenoid tetraether (BIT) index traces water content along two marsh-soil transects surrounding Lake Qinghai: Implications for paleo-humidity variation[J]. ORGANIC GEOCHEMISTRY,2013,59:75-81. |
| APA | He, YX ,Liu, ZH ,Zhang, CLL ,Liu, WG ,&Wang, HY .(2013).Branched and isoprenoid tetraether (BIT) index traces water content along two marsh-soil transects surrounding Lake Qinghai: Implications for paleo-humidity variation.ORGANIC GEOCHEMISTRY,59,75-81. |
| MLA | He, YX ,et al."Branched and isoprenoid tetraether (BIT) index traces water content along two marsh-soil transects surrounding Lake Qinghai: Implications for paleo-humidity variation".ORGANIC GEOCHEMISTRY 59(2013):75-81. |
入库方式： OAI收割
来源：地球环境研究所
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