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DOI10.1016/j.palaeo.2010.05.020
Vegetation history, climate change and human activities over the last 6200 years on the Liupan Mountains in the southwestern Loess Plateau in central China
Zhao, Yan; Chen, Fahu; Zhou, Aifeng; Yu, Zicheng; Zhang, Ke
发表日期2010
ISSN0031-0182
卷号293期号:2018-01-02页码:197-205
英文摘要

Fossil pollen data from Tianchi Lake on the Liupan Mountains in the Loess Plateau in China were used to investigate the interplay of climate change, vegetation history and human activities. The chronology of an 11-m-long sediment core was controlled by 19 accelerator mass spectrometry radiocarbon dates on terrestrial plant macrofossils. The pollen record shows a long-term change from a closed canopy forest to open landscape over the last 6200 years: from mixed deciduous-coniferous forest dominated by Betula, Quercus, Picea and Pinus at 6200-2900 cal yr BP, to transitional steppe forest co-dominated by trees (Betula. Picea and Pious) and herbs (mostly Arternisia) at 2900-1100 cal yr BP, and to open landscape dominated by Artemisia and Poaceae after 1100 cal yr BP. This general pattern of vegetation change indicates a drying climate trend, consistent with other independent climate records mostly from the monsoon region that show a weakening summer monsoon since the mid-Holocene. The gradual increase in both Poaceae pollen and microscopic charcoal since about 2000 cal yr BP and a sharp increase in Poaceae but a decrease in charcoal at 1000 cal yr BP indicate two phases of human impacts on vegetation. The results from pollen and charcoal analysis, together with archaeological and historical evidence, suggest that human activities over the last 2000 years have significantly accelerated deforestation that was initiated by a drying climate since the mid-Holocene. (C) 2010 Elsevier B.V. All rights reserved.


英文关键词Pollen;Charcoal;Holocene;Vegetation change;Climate change;Human impact
语种英语
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000280007000017
来源期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构兰州大学 ; 中国科学院青藏高原研究所
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/1998
推荐引用方式
GB/T 7714
Zhao, Yan,Chen, Fahu,Zhou, Aifeng,et al. Vegetation history, climate change and human activities over the last 6200 years on the Liupan Mountains in the southwestern Loess Plateau in central China[J]. 兰州大学, 中国科学院青藏高原研究所,2010,293(2018-01-02):197-205.
APA Zhao, Yan,Chen, Fahu,Zhou, Aifeng,Yu, Zicheng,&Zhang, Ke.(2010).Vegetation history, climate change and human activities over the last 6200 years on the Liupan Mountains in the southwestern Loess Plateau in central China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,293(2018-01-02),197-205.
MLA Zhao, Yan,et al."Vegetation history, climate change and human activities over the last 6200 years on the Liupan Mountains in the southwestern Loess Plateau in central China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 293.2018-01-02(2010):197-205.
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