Complex responses of vegetation diversity to Holocene climate change in the eastern Tibetan Plateau
文献类型:期刊论文
作者 | Liang, Chen1,2; Zhao, Yan1,2![]() ![]() |
刊名 | VEGETATION HISTORY AND ARCHAEOBOTANY
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出版日期 | 2019-07-01 |
卷号 | 28期号:4页码:379-390 |
关键词 | Vegetation diversity Holocene Quantitative reconstruction Driving mechanisms Tibetan Plateau |
ISSN号 | 0939-6314 |
DOI | 10.1007/s00334-018-0697-4 |
通讯作者 | Zhao, Yan(zhaoyan@igsnrr.ac.cn) |
英文摘要 | Biodiversity has attracted much attention recently due to its important relationships with ecosystem function under various global warming scenarios. However, an understanding of biodiversity mechanisms requires study over long time scales. Three high-resolution pollen records of Zoige Basin in the eastern Tibetan Plateau are used to reconstruct changes in vegetation diversity during the Holocene, allowing the mechanisms that drove the dynamic to be quantitatively explored. Rarefaction and Hill's indices are used to estimate the diversity richness and evenness based on pollen data. The results show that changes in palynological richness can be divided into five stages: an abnormal change from 10,500 to 9,000cal bp, an obvious increase from 9,000 to 6,500cal bp, a decreasing trend from 6,500 to 4,000cal bp, an increasing trend after 4,000cal bp until 1,500cal bp, and a highly fluctuating stage from 1,500cal bp to the present. Palynological evenness is relatively stable throughout the Holocene except for during a briefly elevated period from ca. 4,000 to 1,500cal bp. The result of Boosted Regression Tree analysis indicates that climate is the main driving factor and the effect of temperature is stronger than that of precipitation in the study region. However, during ca. 4,000-1,500cal bp, palynological diversity is primarily affected by vegetation structure, as shown by an increase in palynological evenness, which can in turn be explained by the climate threshold theory. This research provides a long-term, high-resolution reconstruction of palynological diversity which could be used to infer vegetation diversity change in the ecologically sensitive Tibetan Plateau. The results imply that vegetation diversity in the region may increase under global warming if human impacts are not considered. |
WOS关键词 | 6TH MASS EXTINCTION ; PLANT DIVERSITY ; PALYNOLOGICAL RICHNESS ; POLLEN DIVERSITY ; SPECIES RICHNESS ; CONSUMERS GUIDE ; BIODIVERSITY ; PATTERNS ; EVENNESS ; TEMPERATURE |
资助项目 | National Key Research and Development Program of China[2016YFA0600501] ; National Natural Science Foundation of China[41330105] ; National Natural Science Foundation of China[41690113] ; National Natural Science Foundation of China[41471169] |
WOS研究方向 | Plant Sciences ; Paleontology |
语种 | 英语 |
WOS记录号 | WOS:000470336200002 |
出版者 | SPRINGER |
资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/58941] ![]() |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Zhao, Yan |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Vrije Univ Amsterdam, Dept Earth Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands 4.Lushan Bot Garden, PO 9 Zhiqing Rd, Lushan 332900, Jiangxi, Peoples R China 5.Chinese Acad Sci, PO 9 Zhiqing Rd, Lushan 332900, Jiangxi, Peoples R China |
推荐引用方式 GB/T 7714 | Liang, Chen,Zhao, Yan,Qin, Feng,et al. Complex responses of vegetation diversity to Holocene climate change in the eastern Tibetan Plateau[J]. VEGETATION HISTORY AND ARCHAEOBOTANY,2019,28(4):379-390. |
APA | Liang, Chen.,Zhao, Yan.,Qin, Feng.,Cui, Qiao-Yu.,Li, Quan.,...&Zhang, Zhi-Yong.(2019).Complex responses of vegetation diversity to Holocene climate change in the eastern Tibetan Plateau.VEGETATION HISTORY AND ARCHAEOBOTANY,28(4),379-390. |
MLA | Liang, Chen,et al."Complex responses of vegetation diversity to Holocene climate change in the eastern Tibetan Plateau".VEGETATION HISTORY AND ARCHAEOBOTANY 28.4(2019):379-390. |
入库方式: OAI收割
来源:地理科学与资源研究所
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