Pollen preservation and its potential influence on paleoenvironmental reconstruction in Chinese loess deposits
文献类型：期刊论文
| 作者 | Li, Chunhai1; Dodson, John4,5; Meng, Xianqiang6; Zhang, Wenchao3; Lu, Huayu2,3 |
| 刊名 | REVIEW OF PALAEOBOTANY AND PALYNOLOGY
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 240期号:2017页码:1-10 |
| 关键词 | Pollen Preservation Chinese Loess Climate Paleoenvironment Quaternary |
| DOI | 10.1016/j.revpalbo.2017.01.002 |
| 文献子类 | Article |
| 英文摘要 | Pollen analysis in loess sediment has long been used to reconstruct Quaternary environmental change. However, caution should be taken as the reconstructed paleovegetation may be biased if pollen preservation is ignored. This paper investigates spatio-temporal pollen preservation condition and its causal factors in Chinese loess deposits, based on studying pollen of samples in three glacial and interglacial units across a climate gradient in China. We show that pollen concentration decreases from the cool and dry North China to warmer and wetter climate in more southerly locations at the same period. Pollen concentration in loess deposits is influenced by both pollen preservation and production, and the former one becomes the overwhelming factor where climate is quite warm and wet. Climate can influence pollen preservation by enhancing conditions for oxidation and microbial attack. Increasing temperature and moisture facilitates both the oxidation process and microbial destruction, which can result in pollen deterioration in loess deposits. In addition, a high soil pH can also cause pollen damage over time. These factors favour the relative preservation of several taxa such as Artemisia, Aster, Taraxacum, Pinus and Chenopodiaceae, and this leads to them dominating pollen spectra of Chinese loess deposits. The original pollen record suffers from the differential loss of taxa, especially toward southern loess regions and the absence of broadleaf forests or forest steppe reconstructed by pollen records may be attributable to this. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | CLIMATE-CHANGE ; LUONAN BASIN ; QUANTITATIVE RECONSTRUCTION ; VEGETATION CHARACTERISTICS ; HOLOCENE VEGETATION ; ACCUMULATION RATES ; PALEOSOL SEQUENCE ; SOIL CARBONATE ; GLACIAL CYCLE ; PLATEAU |
| WOS研究方向 | Plant Sciences ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000402349400001 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5463]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 3.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 5.Univ Wollongong, Sch Earth & Environm, Wollongong, NSW, Australia 6.Nanjing Univ, Sch Earth Sci & Engn, Key Lab Surficial Geochem, Minist Educ, Nanjing 210023, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chunhai,Dodson, John,Meng, Xianqiang,et al. Pollen preservation and its potential influence on paleoenvironmental reconstruction in Chinese loess deposits[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2017,240(2017):1-10. |
| APA | Li, Chunhai,Dodson, John,Meng, Xianqiang,Zhang, Wenchao,&Lu, Huayu.(2017).Pollen preservation and its potential influence on paleoenvironmental reconstruction in Chinese loess deposits.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,240(2017),1-10. |
| MLA | Li, Chunhai,et al."Pollen preservation and its potential influence on paleoenvironmental reconstruction in Chinese loess deposits".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 240.2017(2017):1-10. |
入库方式： OAI收割
来源：地球环境研究所
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