Varied responses of forest at its distribution margin to Holocene   monsoon development in northern China

doi:10.1016/j.palaeo.2014.05.020

CORC > 北京大学 > 城市与环境学院

	Varied responses of forest at its distribution margin to Holocene monsoon development in northern China
	Hao, Qian ; Liu, Hongyan ; Yin, Yi ; Wang, Hongya ; Feng, Mingmin
刊名	palaeogeography palaeoclimatology palaeoecology
	2014
关键词	Palaeovegetation Forest-steppe ecotone Monsoon Drought Holocene CENTRAL TIBETAN PLATEAU ASIAN SUMMER MONSOON ARID CENTRAL-ASIA CLIMATE-CHANGE TREE MORTALITY INNER-MONGOLIA INDIAN MONSOON SEMIARID CHINA CAVE RECORDS DAIHAI LAKE
DOI	10.1016/j.palaeo.2014.05.020
英文摘要	Based on pollen analysis and other evidence in a sediment profile from Huangqihai Lake, located at the limit of Asian monsoon influence, the local vegetation development and climatic change were reconstructed for the past 8600 years. From 8600 to 7200 cal. yr BP, the local vegetation was dominated by steppe and tree cover was low. Then pine increased gradually, and the local vegetation was pine and oak mixed forest with variable ratios of the two dominant tree taxa from 7200 to 3600 cal. yr BP. From 3600 to 3000 cal. yr BP, the forest was replaced by shrubland, which was attributed to a period of intense drought. From 3000 to 600 cal. yr BP, the tree cover declined to its lowest levels, probably due to long-term further drought. After 600 cal. yr BP, steppe has become dominant again. We found that the changes of vegetation type indicated by pollen percentages did not match existing evidence for monsoon dynamics. Changes in tree pollen concentration, however, well captured the changes in the Asian monsoon, implying different sensitivity of vegetation cover and vegetation type (e.g. replacement of steppe by forest) to the monsoon development. In addition, a shrubland-dominated stage which has not been evident in previous studies was also clear in our pollen sequences. Our study implied that the responses of marginal forest to drought were variable, depending on the drought regime. The different responses of forest to climate drying in this study provide insights into the reliable prediction of forest dynamics in the semi-arid regions. (C) 2014 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000339144400018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Geography, Physical; Geosciences, Multidisciplinary; Paleontology; SCI(E); 7; ARTICLE; lhy@urban.pku.edu.cn; 239-248; 409
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/209348]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Hao, Qian,Liu, Hongyan,Yin, Yi,et al. Varied responses of forest at its distribution margin to Holocene monsoon development in northern China[J]. palaeogeography palaeoclimatology palaeoecology,2014.
APA	Hao, Qian,Liu, Hongyan,Yin, Yi,Wang, Hongya,&Feng, Mingmin.(2014).Varied responses of forest at its distribution margin to Holocene monsoon development in northern China.palaeogeography palaeoclimatology palaeoecology.
MLA	Hao, Qian,et al."Varied responses of forest at its distribution margin to Holocene monsoon development in northern China".palaeogeography palaeoclimatology palaeoecology (2014).