DOI: 10.1016/j.quascirev.2016.09.016
Scopus记录号: 2-s2.0-84989348396
论文题名: Holocene climate changes in the central Asia mountain region inferred from a peat sequence from the Altai Mountains, Xinjiang, northwestern China
作者: Zhang Y. ; Meyers P.A. ; Liu X. ; Wang G. ; Ma X. ; Li X. ; Yuan Y. ; Wen B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 152 起始页码: 19
结束页码: 30
语种: 英语
英文关键词: Altai mountains
; Arid central Asia
; Holocene paleoclimate changes
; Humification degree
; n-alkane distributions
; Peat
Scopus关键词: Atmospheric temperature
; Biodegradation
; Climate change
; Landforms
; Paraffins
; Peat
; Surface waters
; Altai mountains
; Central Asia
; Humification
; n-Alkanes
; Paleoclimate change
; Oceanography
; alkane
; arid region
; climate change
; episodic event
; Holocene
; humification
; insolation
; meltwater
; mountain region
; Northern Hemisphere
; peatland
; regional climate
; sea surface temperature
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: A continuous peat sequence collected in the Altai Mountains, Xinjiang Province, northwestern China, provides a new opportunity to reconstruct the Holocene climate history in the arid central mountain region of Asia. Based on AMS 14C dating, high resolution records of the humification degree and n-alkane distributions reveal that the region experienced a relatively warm and dry early Holocene (10.0–8.0 ka) and a cold and wet early mid-Holocene (8.0–6.3 ka), followed by a warm and dry mid-Holocene (6.3–5.5 ka). A shift to cold and wet conditions occurred between 5.5 and 4.0 ka, and then the climate entered into a warmer period from 4.0 to 2.5 ka. In the late Holocene (2.5–1.0 ka), the region experienced a colder and wetter climate. A gradual shift to warm and dry conditions occurred during the last 1.0 ky in this region. The regional climate patterns have been generally dominated by alternations of warm-dry and cold-wet episodes during the Holocene that were quite different from the warm-wet and cool-dry episodes in the Asian summer monsoon region. Regional comparisons indicate that the climate changes in arid central Asia have been mainly influenced by the North Atlantic Ocean sea surface temperatures (SSTs) via the westerlies. However, owing to the mountainous character of the study areas, glacial meltwater, and other local factors, the climate changes in the Altai Mountains region have not always been concordant with variations of North Atlantic Ocean SSTs. We postulate that the history of moisture balance between regional precipitation, glacier and snow meltwater, and evaporation has been modulated by air temperatures that were mainly influenced by changes in the summer insolation of the Northern Hemisphere. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59405
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China; Department of Earth and Environmental Sciences, The University of Michigan, Ann Arbor, MI, United States; University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Zhang Y.,Meyers P.A.,Liu X.,et al. Holocene climate changes in the central Asia mountain region inferred from a peat sequence from the Altai Mountains, Xinjiang, northwestern China[J]. Quaternary Science Reviews,2016-01-01,152