气候变化领域集成服务门户(CCPortal): Monsoon-induced errors in paleotemperature estimation based on leaf morphology analysis in central Japan

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DOI	10.1016/j.palaeo.2019.109237
	Monsoon-induced errors in paleotemperature estimation based on leaf morphology analysis in central Japan
	Wang Y.; Momohara A.; Huang Y.-J.
发表日期	2019
ISSN	0031-0182
卷号	533
英文摘要	Models based on the relationship between leaf morphology and climate parameters of different regions have been used for paleoclimate estimation. Information from Japanese floras has been included in some of these models; however, variation in the distribution pattern of leaf margin within Japan caused by the effect of topography and East Asian Monsoon has not been reflected in these previously published leaf margin analysis models. In this study, we investigate the relationship between leaf characters and climate parameters under different climate conditions within a small geographical scale and, in doing so, improve the accuracy of leaf physiognomy-based paleoclimate reconstruction. We use the local flora in central Japan as an example to determine the distribution pattern of leaf margin (toothed and untoothed) and habit (evergreen and deciduous) characteristics under monsoon climate conditions. In areas along the Pacific Ocean (P-zone), the leaf margin and habit types correlated with the temperature parameters and growing season precipitation. The P-zone includes more toothed species than in other regions of the world obtained with published models at a given mean annual temperature. In the areas along the Sea of Japan (J-zone) with deeper snow cover during the winter, the percent of sub-canopy evergreen shrubs increases, especially at higher altitudes. No significant relationship between leaf margin characters and climate parameters was observed in this area. As heavy snow was a feature of this region since late Early Pleistocene times, paleoclimate estimation based on leaf margin of fossil assemblages younger than Early Pleistocene from these areas might be less reliable. In addition, we found that the leaf margin of woody shrub species is less sensitive to the mean annual temperature than tree species. © 2019 Elsevier B.V.
英文关键词	East Asian monsoon; Leaf margin analysis; Paleoclimate; Plant habit; Snow cover
语种	英语
scopus关键词	error analysis; fossil assemblage; growing season; leaf morphology; monsoon; paleoclimate; paleotemperature; snow cover; topography; Pacific Ocean; Sea of Japan
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150835
作者单位	Graduate School of Horticulture, Chiba University, 648 Matsudo, Chiba, 271-8510, Japan; Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, CAS, Kunming, 650204, China
推荐引用方式 GB/T 7714	Wang Y.,Momohara A.,Huang Y.-J.. Monsoon-induced errors in paleotemperature estimation based on leaf morphology analysis in central Japan[J],2019,533.
APA	Wang Y.,Momohara A.,&Huang Y.-J..(2019).Monsoon-induced errors in paleotemperature estimation based on leaf morphology analysis in central Japan.Palaeogeography, Palaeoclimatology, Palaeoecology,533.
MLA	Wang Y.,et al."Monsoon-induced errors in paleotemperature estimation based on leaf morphology analysis in central Japan".Palaeogeography, Palaeoclimatology, Palaeoecology 533(2019).