C-3/C-4 vegetation evolution over the last 7.0 Myr in the Chinese Loess Plateau: evidence from pedogenic carbonate delta C-13
文献类型：期刊论文
| 作者 | Ding, ZL; Yang, SL |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2000-07-15 |
| 卷号 | 160期号:3-4页码:291-299 |
| 关键词 | atmospheric CO2 levels carbon isotope record eolian deposits paleovegetation |
| ISSN号 | 0031-0182 |
| 文献子类 | Article |
| 英文摘要 | The stable carbon and oxygen isotopic compositions of soil carbonate were measured on an eolian loess and red clay sequence at Lingtai, the Chinese Loess Plateau. This sequence is composed of 130 m of Tertiary red clay deposits with a basal age of 7.05 Ma overlain by 175 m of Pleistocene loess. In the field we identified ca. 110 carbonate nodule horizons in the red clay and 27 nodule horizons in the loess. These carbonate nodule horizons are formed by leaching and re-precipitation of carbonate from the eolian material. The delta(13)C record of soil carbonate indicates a major expansion of C-4 plants at ca. 4.0 Myr in the Loess Plateau. This event is comparable in timing with the expansion of C-4 plants in northern North America (Cerling et al., 1997. Nature 389, 153-158) but is ca. 3 million years later than the C-4 biomass expansion in Pakistan (Quade et al., 1989. Nature 342, 163-166). The pedogenic characteristics of the soils and the delta(18)O record in the red clay suggest that the C-4 plant expansion in the Loess Plateau was not driven by local climatic changes, which may support Cerling et al.'s (1997) assertion that the decline of atmospheric CO2 levels in the Neogene is responsible for this global vegetation change. Our record also implies that the Tibetan Plateau could have been uplifted to a critical height in the late Miocene, thus resulting in the formation of the atmospheric Great East-Asia Trough. (C) 2000 Elsevier Science B.V. All rights reserved. |
| WOS关键词 | NORTH-CENTRAL CHINA ; NUMERICAL EXPERIMENTS ; LATE MIOCENE ; C-4 GRASSES ; ISOTOPES ; CLIMATE ; PLANTS ; UPLIFT ; PALEOSOLS ; EXPANSION |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000087958600008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76095]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Ding, ZL |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, ZL,Yang, SL. C-3/C-4 vegetation evolution over the last 7.0 Myr in the Chinese Loess Plateau: evidence from pedogenic carbonate delta C-13[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2000,160(3-4):291-299. |
| APA | Ding, ZL,&Yang, SL.(2000).C-3/C-4 vegetation evolution over the last 7.0 Myr in the Chinese Loess Plateau: evidence from pedogenic carbonate delta C-13.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,160(3-4),291-299. |
| MLA | Ding, ZL,et al."C-3/C-4 vegetation evolution over the last 7.0 Myr in the Chinese Loess Plateau: evidence from pedogenic carbonate delta C-13".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 160.3-4(2000):291-299. |
入库方式： OAI收割
来源：地质与地球物理研究所
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