Late Quaternary environmental changes and organic carbon density in the Hunshandake Sandy Land, eastern Inner Mongolia, China
文献类型：期刊论文
| 作者 | Yang, X.1; Zhu, B.1; Wang, X.1; Li, C.2; Zhou, Z.1; Chen, J.3; Wang, X.4; Yin, J.3; Lu, Y.3 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 61期号:1-2页码:70-78 |
| 关键词 | desert organic carbon density palaeoclimatology Late Quaternary China |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2007.08.007 |
| 文献子类 | Article |
| 英文摘要 | Knowledge about changes of regional carbon density during late Quaternary is of great significance for understanding regional and global carbon cycles. Taking the Hunshandake Sandy Land, located in eastern Inner Mongolia of China as an example, this paper aims to reconstruct Late Quaternary environmental changes, and then to discuss the fluctuations of organic carbon density and storage in the desert environment of northern China. The study area with a mean annual precipitation ca. 300 mm is characterized by the occurrence of fixed and semi-fixed sand dunes reaching a maximal height of 30 m. The research methods included field observations, examinations of grain sizes, as well as carbon and calcium carbonate contents of the sediment samples. The chronology is based on Optically Stimulated Luminescence (OSL) dating and radiocarbon analyses. This work reveals that the organic carbon density in the surface layer of the Hunshandake Sandy Land changed between at least 2500 g/m(2) during the Holocene Climatic Optimum and 1500 g/m(2) when aeolian processes dominate. The dune construction was restricted by periglacial processes during the Last Glacial Maximum (LGM). The Holocene Climatic Optimum, indicated by extensive formation of kastanozem soils, occurred between 5 ka and 3 ka in the study area. Although desertification might cause a 40% loss of total organic carbon storage within several dozen of years in the study area, a considerable amount of this carbon was re-deposited in the regions of downwind directions. (c) 2007 Elsevier B.V. All rights reserved. |
| WOS关键词 | DESERT |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000255469600008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/69534]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, X. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China 3.Chinese Seismol Bur, Inst Geol, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, X.,Zhu, B.,Wang, X.,et al. Late Quaternary environmental changes and organic carbon density in the Hunshandake Sandy Land, eastern Inner Mongolia, China[J]. GLOBAL AND PLANETARY CHANGE,2008,61(1-2):70-78. |
| APA | Yang, X..,Zhu, B..,Wang, X..,Li, C..,Zhou, Z..,...&Lu, Y..(2008).Late Quaternary environmental changes and organic carbon density in the Hunshandake Sandy Land, eastern Inner Mongolia, China.GLOBAL AND PLANETARY CHANGE,61(1-2),70-78. |
| MLA | Yang, X.,et al."Late Quaternary environmental changes and organic carbon density in the Hunshandake Sandy Land, eastern Inner Mongolia, China".GLOBAL AND PLANETARY CHANGE 61.1-2(2008):70-78. |
入库方式： OAI收割
来源：地质与地球物理研究所
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