Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.yqres.2012.01.009 |
Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China | |
Lu, Huayu1,2; Zhou, Yali3; Liu, Weiguo4; Mason, Joseph2 | |
通讯作者 | Lu, Huayu |
来源期刊 | QUATERNARY RESEARCH
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ISSN | 0033-5894 |
EISSN | 1096-0287 |
出版年 | 2012 |
卷号 | 77期号:3页码:433-444 |
英文摘要 | 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. (C) 2012 University of Washington. Published by Elsevier Inc. All rights reserved. |
英文关键词 | Dune fields Stable carbon isotopes C-4 plants Vegetation changes Climatic change Northern China Late Quaternary |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000304798200010 |
WOS关键词 | CLIMATE-CHANGE ; INNER-MONGOLIA ; LOESS PLATEAU ; ENVIRONMENTAL-CHANGE ; PLANT ABUNDANCE ; DUST EMISSION ; MODERN SOIL ; C-4 PLANTS ; LONG-TERM ; MU-US |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | 南京大学 ; 中国科学院地球环境研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174705 |
作者单位 | 1.Nanjing Univ, MOE Key Lab Coast & Isl Dev, Sch Geog & Oceanog Sci, Nanjing 210093, Jiangsu, Peoples R China; 2.Univ Wisconsin, Dept Geog, Madison, WI 53706 USA; 3.Shaanxi Normal Univ, Coll Tourism & Environm, Xian 710062, Peoples R China; 4.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China |
推荐引用方式 GB/T 7714 | Lu, Huayu,Zhou, Yali,Liu, Weiguo,et al. Organic stable carbon isotopic composition reveals late Quaternary vegetation changes in the dune fields of northern China[J]. 南京大学, 中国科学院地球环境研究所,2012,77(3):433-444. |
APA | Lu, Huayu,Zhou, Yali,Liu, Weiguo,&Mason, Joseph.(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, Huayu,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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