DOI: 10.1016/j.quascirev.2016.02.001
Scopus记录号: 2-s2.0-84958063825
论文题名: Quantitative woody cover reconstructions from eastern continental Asia of the last 22 kyr reveal strong regional peculiarities
作者: Tian F. ; Cao X. ; Dallmeyer A. ; Ni J. ; Zhao Y. ; Wang Y. ; Herzschuh U.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 137 起始页码: 33
结束页码: 44
语种: 英语
英文关键词: AVHRR
; East Asian summer monsoon
; Modern analogue technique
; Pollen
; Quantitative reconstruction
Scopus关键词: Advanced very high resolution radiometers (AVHRR)
; Atmospheric thermodynamics
; Calibration
; Climate change
; Climate models
; AVHRR
; Climatic conditions
; Climatic variables
; East Asian summer monsoon
; Eastern Tibetan plateau
; Global climate model
; Modern analogue techniques
; Pollen
; Forestry
; Allerod
; AVHRR
; Bolling
; calibration
; climate conditions
; climate modeling
; climate variation
; forest cover
; forest-steppe
; global climate
; Holocene
; monsoon
; pollen
; quantitative analysis
; reconstruction
; satellite sensor
; summer
; technological development
; temperature effect
; Asia
; China
; North America
; Qinghai-Xizang Plateau
英文摘要: We present a calibration-set based on modern pollen and satellite-based Advanced Very High Resolution Radiometer (AVHRR) observations of woody cover (including needleleaved, broadleaved and total tree cover) in eastern continental Asia, which shows good performance under cross-validation with the modern analogue technique (all the coefficients of determination between observed and predicted values are greater than 0.65). The calibration-set is used to reconstruct woody cover from a taxonomically harmonized and temporally standardized fossil pollen dataset (including 274 cores) with 500-year resolution over the last 22 kyr. The spatial range of forest has not noticeably changed in eastern continental Asia during the last 22 kyr, although woody cover has, especially at the margin of the eastern Tibetan Plateau and in the forest-steppe transition area of north-central China. Vegetation was sparse during the LGM in the present forested regions, but woody cover increased markedly at the beginning of the Bølling/Allerød period (B/A; ca. 14.5 ka bp) and again at the beginning of the Holocene (ca. 11.5 ka bp), and is related to the enhanced strength of the East Asian Summer Monsoon. Forest flourished in the mid-Holocene (ca. 8 ka bp) possibly due to favourable climatic conditions. In contrast, cover was stable in southern China (high cover) and arid central Asia (very low cover) throughout the investigated period. Forest cover increased in the north-eastern part of China during the Holocene. Comparisons of these regional pollen-based results with simulated forest cover from runs of a global climate model (for 9, 6 and 0 ka bp (ECHAM5/JSBACH ~1.125° spatial resolution)) reveal many similarities in temporal change. The Holocene woody cover history of eastern continental Asia is different from that of other regions, likely controlled by different climatic variables, i.e. moisture in eastern continental Asia; temperature in northern Eurasia and North America. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59642
Appears in Collections: 过去全球变化的重建
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作者单位: Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, Potsdam, Germany; Institute of Earth and Environment Science, University of Potsdam, Karl-Liebknecht-Str. 24, Potsdam, Germany; Max Planck Institute for Meteorology, KlimaCampus, Bundesstrasse 53, Hamburg, Germany; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guanshui Road 46, Guiyang, China; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Datun Road 11, Beijing, China
Recommended Citation:
Tian F.,Cao X.,Dallmeyer A.,et al. Quantitative woody cover reconstructions from eastern continental Asia of the last 22 kyr reveal strong regional peculiarities[J]. Quaternary Science Reviews,2016-01-01,137