| Mid to late Holocene environmental change and human impact: A view from Central China | |
| Lu, Fengyan1; Dodson, John1; Zhang, Wenchao1,2; Yan, Hong1 | |
| 通讯作者 | Dodson, John(john@ieecas.cn) |
| 2019-11-01 | |
| 发表期刊 | QUATERNARY SCIENCE REVIEWS
 |
| ISSN | 0277-3791 |
| 卷号 | 223页码:9 |
| 摘要 | Dajiuhu, a rare peatland in Central China, has attracted several studies. There are differences in the interpretations of its Holocene record, and little has been written on landscape transformation by human impact. A 6100 yr palynologic record, together with TOC and charcoal data, from Dajiuhu peatland is assessed to provide a new perspective on mid-late Holocene environmental change and human activity. We found that wetland herb pollen is a sensitive marker of effective precipitation, and the ratio of evergreen and deciduous tree pollen can be a proxy for temperature variability at the site. A mixed evergreen and deciduous forest dominates the record. Peak warming was at 2900 cal yr BP and cool events occurred around 5100, 4100 and 2700 cal yr BP. The cooling at 5100 and 2700 cal yr BP may be related to decreased solar activity. There was a long-term drying trend punctuated by episodic droughts around 3000 to 2800 cal yr BP and following 1500 cal yr BP; we argue that these relate to the southward retreat of the ITCZ. A low level of regional fires was present as background. At 800 cal yr BP there were declines in forest taxa, increases in ferns, herbs, burning and inorganic inputs into the sediment; these signal sustained human impact in the area. The relatively late human impact is probably related to the rugged mountain landscape and river systems prone to frequent flooding, or may be due to a late expansion in human population and land resource pressures at Dajiuhu. (C) 2019 Elsevier Ltd. All rights reserved. |
| 关键词 | Holocene Paleoclimatology China Vegetation dynamics Human impact Solar activity ITCZ |
| DOI | 10.1016/j.quascirev.2019.105953 |
| 关键词[WOS] | EAST-ASIAN MONSOON ; CLIMATE CHANGES ; ARCHAEOLOGICAL SITES ; DAJIUHU PEATLAND ; SHENNONGJIA ; VEGETATION ; SUMMER ; RECORDS ; EVOLUTION ; HUBEI |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | Chinese Academy of Sciences, China[QYZDB-SSWDQC001] ; Pilot National Laboratory for Marine Science and Technology (Qingdao), China[QNLM2016ORP0202] ; National Natural Science Foundation of China (NSFC)[41877399] |
| WOS研究方向 | Physical Geography ; Geology |
| 项目资助者 | Chinese Academy of Sciences, China ; Pilot National Laboratory for Marine Science and Technology (Qingdao), China ; National Natural Science Foundation of China (NSFC) |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000493220300014 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/12852 |
| 专题 | 古环境研究室 |
| 通讯作者 | Dodson, John |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Fengyan,Dodson, John,Zhang, Wenchao,et al. Mid to late Holocene environmental change and human impact: A view from Central China[J]. QUATERNARY SCIENCE REVIEWS,2019,223:9. |
| APA | Lu, Fengyan,Dodson, John,Zhang, Wenchao,&Yan, Hong.(2019).Mid to late Holocene environmental change and human impact: A view from Central China.QUATERNARY SCIENCE REVIEWS,223,9. |
| MLA | Lu, Fengyan,et al."Mid to late Holocene environmental change and human impact: A view from Central China".QUATERNARY SCIENCE REVIEWS 223(2019):9. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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