气候变化领域集成服务门户(CCPortal): Pollen evidence for the environmental context of the early Pleistocene Xiashagou fauna of the Nihewan Basin; north China

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DOI	10.1016/j.quascirev.2020.106298
	Pollen evidence for the environmental context of the early Pleistocene Xiashagou fauna of the Nihewan Basin; north China
	Zhang Z.; Li Y.; Li C.; Xu Q.; Zhang R.; Ge Y.; Li B.; Deng C.; Li Z.; Zhang L.
发表日期	2020
ISSN	0277-3791
卷号	236
英文摘要	The Xiashagou fauna is one of the most abundant and representative faunas in East Asia and can be directly compared to the Olivola fauna of early Late Villafranchian age in Europe. Therefore, it is of great significance for understanding the evolution of the Quaternary faunas and environment of East Asia. We conducted pollen analyses of 163 fossil samples and 1045 surface samples, combining the results from the NHA drill core to characterize the patterns of vegetation and climate change in the Early Pleistocene and the early stage of the Xiashagou fauna. The results enable the definition of three cold periods (2.6–2.58 Ma, 2.55–2.34 Ma, 2.20–2.14 Ma) and two warm periods (2.58–2.55 Ma, 2.34–2.20 Ma). The pollen assemblages are dominated by Picea or Artemisia, Amaranthaceae and Poaceae during the cold periods, while dominated by Pinus and broadleaved trees during the warm periods. The annual average temperature (Tann) decreased by ∼2 °C (up to ∼10 °C), and average annual precipitation (Pann) decreased by ∼200 mm (up to ∼500 mm) during the cold period. The Xiashagou fauna emerged at the beginning of the third cold period (∼2.20 Ma) with Tann decreased by 3–4 °C and Pann by 100–200 mm, when the pollen spectra are dominated by Artemisia, Amaranthaceae and Poaceae (>80%), indicating that the vegetation was predominantly grassland. From 2.19 to 2.18 Ma, the climate became slightly warm and humid, with increased Pinus and Ulmus representation, which resulted in the development of forest; after 2.18 Ma the climate became colder and drier again. © 2020 Elsevier Ltd
英文关键词	Environmental context; Nihewan basin; Paleoclimatic quantitative reconstruction; Pollen assemblages; Xiashagou fauna
语种	英语
scopus关键词	Climate change; Core drilling; Vegetation; Annual average; Average annual precipitation; Broadleaved trees; Early pleistocene; Environmental contexts; Pollen analysis; Pollen assemblage; Surface sample; Animals; climate variation; coniferous tree; evolutionary biology; fossil record; humid environment; palynology; vegetation dynamics; vegetation type; Villafranchian; China; Europe; Hebei; Nihewan Basin; Amaranthaceae; Artemisia; Picea; Poaceae; Ulmus
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151494
作者单位	College of Resources and Environmental Science, Hebei Normal University, Shijiazhuang, 050024, China; Key Laboratory of Environmental Evolution and Ecological Construction of Hebei Province, Hebei Normal University, Shijiazhuang, 050024, China; Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang, 050011, China; Hebei Engineering Research Center for Geographic Information Application, Institute of Geographical Sciences, Shijiazhuang, 050011, China; Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Zhang Z.,Li Y.,Li C.,et al. Pollen evidence for the environmental context of the early Pleistocene Xiashagou fauna of the Nihewan Basin; north China[J],2020,236.
APA	Zhang Z..,Li Y..,Li C..,Xu Q..,Zhang R..,...&Zhang L..(2020).Pollen evidence for the environmental context of the early Pleistocene Xiashagou fauna of the Nihewan Basin; north China.Quaternary Science Reviews,236.
MLA	Zhang Z.,et al."Pollen evidence for the environmental context of the early Pleistocene Xiashagou fauna of the Nihewan Basin; north China".Quaternary Science Reviews 236(2020).