DOI: 10.1016/j.palaeo.2016.01.024
论文题名: Pollen-detected altitudinal migration of forests during the Holocene in the mountainous forest-steppe ecotone in northern China
作者: Hao Q. ; Liu H. ; Liu X.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 446 起始页码: 70
结束页码: 77
语种: 英语
英文关键词: Altitude range
; Altitudinal migration
; Arboreal pollen
; Betula
; Forest-steppe ecotone
; Pinus
; Quercus
英文摘要: Distributed on the margin of the influence of the Asian monsoon, the forest-steppe ecotone in northern China is sensitive to climate change. Previous paleovegetation reconstructions in this region have led to inconsistent explanations of paleovegetation dynamics across sites. We hypothesized that the patterns observed are related to altitudinal migration of forests across mountains in this region. We combined eight lake sediment pollen records to explain how three forest types dominated by the tree genera Pinus, Quercus, and Betula changed in response to temporal and spatial monsoon changes within the forest-steppe ecotone during the Holocene. Modern pollen assemblages showed that areas with large altitude range could support more forests, which was further confirmed by the spatial patterns of late-Holocene forest distribution under dry climate. Our results confirmed that altitudinal migration of forests might exist in this region. This kind of altitudinal migration of forests under different altitudinal ranges could help to explain the inconsistent patterns observed in arboreal pollen across sediment cores as well as the non-linear response of horizontal forest distribution in relation to climate change. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68566
Appears in Collections: 过去全球变化的重建
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作者单位: College of Urban and Environmental Sciences, MOE Laboratory for Earth Surface Processes, Peking University, Beijing, China
Recommended Citation:
Hao Q.,Liu H.,Liu X.. Pollen-detected altitudinal migration of forests during the Holocene in the mountainous forest-steppe ecotone in northern China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,446