Pollen-based reconstructions of Holocene vegetation and climatic change of Tibetan Plateau

编号 zgly0000314251

文献类型 期刊论文

文献题名 Pollen-based reconstructions of Holocene vegetation and climatic change of Tibetan Plateau

学科分类 220.1060;森林生态学

作者 唐领余  李春海  于革  沈才明 

作者单位 NanjingInstituteofGeologyandPalaeontology  CAS  Nanjing210008  China  NanjingInstituteofGeographyandLimnology  CAS  Nanjing210008  China  LouisianaStateUuniversity  BatonRouge  LA70803  USA 

母体文献 Chinese Journal of Polar Science;极地研究: 英文版 

年卷期 2003,14(2)

页码 99-116

年份 2003 

分类号 Q948.156  P534.632 

关键词 中国  西藏高原  高山植被  全新世  气候变化  高山草地  高山森林 

文摘内容 A synthesis of Holocene pollen records from the Tibetan Plateau shows the history of vegetation and climatic changes during the Holocene. Palynological evidences from 24 cores/sections have been compiled and show that the vegetation shifted from subalpine/alpine conifer forest to subalpine/alpine evergreen sclerophyllous forest in the southeastern part of the plateau; from alpine steppe to alpine desert in the central, western and northern part; and from alpine meadow to alpine steppe in the eastern and southern plateau regions during the Holocene. These records show that increases in precipitation began about 9ka from the southeast, and a wide ranging level of increased humidity developed over the entire of the plateau around 8-7ka, followed by aridity from 6ka and a continuous drying over the plateau after 4-3ka. The changes in Holocene climates of the plateau can be interpreted qualitatively as a response to orbital forcing and its secondary effects on the Indian Monsoon which expanded northwards during the early Holocene and retreated from the plateau since the midHolocene. Also, there is teleconnection between the Tibetan Plateau and North Atlantic。