The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka
文献类型：期刊论文
| 作者 | Li, XQ; Zhou, WJ; An, ZS; Dodson, J |
| 刊名 | HOLOCENE
 |
| 出版日期 | 2003-09 |
| 卷号 | 13期号:5页码:779-784 |
| 关键词 | palaeovegetation history monsoon variation Midiwan desert-loess transition northern China Lateglacial Holocene |
| DOI | 10.1191/0959683603hl664rr |
| 文献子类 | Article |
| 英文摘要 | Fine-resolution palaeovegetation and palaeomonsoon proxies for the last 13 ka have been established at the desert-loess transition belt in northern China. These are based on pollen, organic carbon and delta(13)C analysis of samples from a peat section at Midiwan. Results show that the palaeovegetation underwent nine major changes: desert-grassland, grassland, semi-desert, humid grassland, desert, sparse-wood-grassland, steppe, humid grassland and desert-grassland. An interval with semi-desert, humid grassland and desert is associated with rapid oscillation events of cold-dry conditions (11200 -10600 C-14 yr BP) to cool-humid conditions (10600 - 10200 C-14 yr BP), followed by a change to a cold-dry climate (10200 - 10000 C-14 yr BP). The Holocene optimum (10000 - 7500 C-14 yr BP) and another humid interval (4500 - 3500 C-14 yr BP) have also been detected in the area. During the last 3000 years, dry conditions have prevailed and human impact may have affected the location of desert-loess transition zone. The record therefore shows a sensitive response to climate on sub-Milankovitch timescales, and this suggests that possible forcing factors linked to processes in the north Atlantic and their influence on the Northern Hemisphere Westerlies, and the South China Sea and its influence on Summer Monsoon precipitation, have been important controls on climates and human activity in eastern Asia. |
| 学科主题 | Physical Geography ; Geology |
| WOS关键词 | CLIMATE ; VARIABILITY ; GLACIATION ; PLATEAU ; POLLEN |
| WOS研究方向 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000185320000012 |
| 出版者 | ARNOLD, HODDER HEADLINE PLC |
| 源URL | [http://ir.ieecas.cn/handle/361006/11924]  |
| 专题 | 黄土与第四纪地质国家重点实验室（1985-2004） |
| 推荐引用方式 GB/T 7714 | Li, XQ,Zhou, WJ,An, ZS,et al. The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka[J]. HOLOCENE,2003,13(5):779-784. |
| APA | Li, XQ,Zhou, WJ,An, ZS,&Dodson, J.(2003).The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka.HOLOCENE,13(5),779-784. |
| MLA | Li, XQ,et al."The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka".HOLOCENE 13.5(2003):779-784. |
入库方式： OAI收割
来源：地球环境研究所
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