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holocenepeatlanddevelopmentandvegetationchangesinthezoigebasineasterntibetanplateau
Sun Xiaohong; Zhao Yan; Li Quan
2017
Source Publicationsciencechinaearthsciences
ISSN1674-7313
Volume60Issue:10Pages:1826
AbstractPeat sediments and peatland evolution process offer abundant clues into the history of vegetation and climate changes. In order to reconstruct Holocene peatland, vegetation and climate changes on eastern Tibetan Plateau, we conducted analyses of fossil pollen, loss-on-ignition, and carbon accumulation rate on one peat core from Zoige Basin. Our results show local peatland initiated at 10.3 ka, thrived in the early-mid Holocene, and then began to degrade. Throughout the Holocene, Zoige Basin was dominated by alpine meadow. Coniferous forest on montane regions expanded for several times during 10.5-4.6 ka, and then dramatically retreated. Results of peatland property, principal component analysis on fossil pollen suggested the climate maintained warm/wet during 10-5.5 ka, and became relatively cold/dry in the late Holocene. Rapid degradation of peatland, retreat of coniferous forest and climatic drought/cooling occurred at 10.2-10, 9.7-9.5, 8.7-8.5, 7.7-7.4, 6.4-6, 5.5-5.2, 4.8-4.5, 4-3.6, 3.1-2.7, 1.4-1.2 and 0.8-0.6 ka. The long-term variations of Holocene climate and vegetation on eastern Tibetan Plateau could be attributed to changes in insolation-driven temperature and Asian Summer Monsoon intensity, while those rapid centennial changes were probably triggered by abrupt monsoon failures and temperature anomalies in the high northern latitudes.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/119938
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Sun Xiaohong,Zhao Yan,Li Quan. holocenepeatlanddevelopmentandvegetationchangesinthezoigebasineasterntibetanplateau[J]. sciencechinaearthsciences,2017,60(10):1826.
APA Sun Xiaohong,Zhao Yan,&Li Quan.(2017).holocenepeatlanddevelopmentandvegetationchangesinthezoigebasineasterntibetanplateau.sciencechinaearthsciences,60(10),1826.
MLA Sun Xiaohong,et al."holocenepeatlanddevelopmentandvegetationchangesinthezoigebasineasterntibetanplateau".sciencechinaearthsciences 60.10(2017):1826.
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