Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China | |
Lu, HY (Lu, Huayu)[1,2]; Zhou, YL (Zhou, Yali)[3]; Liu, WG (Liu, Weiguo)[4]; Mason, J (Mason, Joseph)[2] | |
2012-05-30 | |
发表期刊 | QUATERNARY RESEARCH |
卷号 | 77期号:3页码:433-444 |
文章类型 | 期刊论文 |
摘要 | Vegetation changes during the late Quaternary in the dune fields of northern China are not well understood. We investigated organic carbon stable isotopic composition of surface soils, related mainly to the ratio of C-3 and C-4 plants, across a range of arid to subhumid climates in this region. Isotopic composition is weakly related to both temperature and moisture (multiple R-2=0.53), with the highest delta C-13 (greatest C4 abundance) in the warm, subhumid Horqin dune field. In late Quaternary, eolian stratigraphic sections of the Mu Us and Horqin dune fields, but not in the much colder Otindag dune field, delta C-13 is higher in organic carbon from paleosols than in eolian sands. This contrast, most evident for paleosols recording a major early to middle Holocene phase of dune stabilization, is interpreted as evidence for expansion of C4 plants due to increased effective moisture, high temperature because of high insolation, and decreased disturbance related to eolian erosion and deposition. |
关键词 | Dune Fields Stable Carbon Isotopes C4 Plants Vegetation Changes Climatic Change Northern China Late Quaternary |
DOI | 10.1016/j.yqres.2012.01.009 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10203 |
专题 | 加速器质谱中心 |
通讯作者 | Lu, HY (Lu, Huayu)[1,2] |
作者单位 | 1.School of Geographic and Oceanographic Sciences, the MOE Key Laboratory of Coast and Island Development, Nanjing University, Nanjing 210093, China; 2.Department of Geography, University of Wisconsin Madison, WI 53706, USA; 3.College of Tourism and Environment, Shaanxi Normal University, Xian 710062, China; 4.Institute of Earth Environment, State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xian 710075, China |
推荐引用方式 GB/T 7714 | Lu, HY ,Zhou, YL ,Liu, WG ,et al. Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China[J]. QUATERNARY RESEARCH,2012,77(3):433-444. |
APA | Lu, HY ,Zhou, YL ,Liu, WG ,&Mason, J .(2012).Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China.QUATERNARY RESEARCH,77(3),433-444. |
MLA | Lu, HY ,et al."Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China".QUATERNARY RESEARCH 77.3(2012):433-444. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Organic stable carbo(1350KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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