DOI: 10.1002/2013GL059081
论文题名: Swiss tree rings reveal warm and wet summers during medieval times
作者: Kress A. ; Hangartner S. ; Bugmann H. ; Büntgen U. ; Frank D.C. ; Leuenberger M. ; Siegwolf R.T.W. ; Saurer M.
刊名: Geophysical Research Letters
ISSN: 0094-10317
EISSN: 1944-10048
出版年: 2014
卷: 41, 期: 5 起始页码: 1732
结束页码: 1737
语种: 英语
英文关键词: carbon isotopes
; drought
; Medieval Climate Anomaly
; tree-rings
Scopus关键词: Carbon
; Drought
; Isotopes
; Carbon isotope fractionation
; Carbon isotope ratio
; Carbon isotopes
; Medieval climate anomalies
; Medieval Climate Anomaly (MCA)
; Summer precipitation
; Summer temperature
; Tree rings
; Forestry
; alpine environment
; carbon isotope
; climate forcing
; historical time (human history)
; paleoclimate
; summer
; tree ring
; Carbon
; Climates
; Drought
; Isotopes
; Switzerland
; Larix
英文摘要: We present a 1200 year drought reconstruction for the European Alpine region based on carbon isotope variations of tree rings from living larch trees and historic timber. The carbon isotope fractionation at the study site is sensitive to summer precipitation, temperature, and irradiance, resulting in a stable and high correlation with a drought index for interannual to decadal frequencies and possibly beyond (r2 = 0.58 for 1901-2004, July/August). When combining this information with maximum latewood density-derived summer temperature, a strongly reduced occurrence of summer droughts during the warm A.D. 900-1200 period is evident, coinciding with the Medieval Climate Anomaly (MCA), with a shift to colder and drier conditions for the subsequent centuries. The warm-wet MCA contrasts strongly with the climate of the drought-prone warm phase of the recent decades, indicating different forcing mechanism for these two warm periods and pointing to beneficial conditions for agriculture and human well-being during the MCA in this region. Key Points A 1200-year drought reconstruction for the Swiss Alps was established The tree-ring carbon isotope ratios at the site are highly moisture-sensitive The data fill a gap in our knowledge about medieval hydroclimate ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895852832&doi=10.1002%2f2013GL059081&partnerID=40&md5=38ac93e77901064af9e4627f51170eb6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7581
Appears in Collections: 气候减缓与适应
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作者单位: Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Recommended Citation:
Kress A.,Hangartner S.,Bugmann H.,et al. Swiss tree rings reveal warm and wet summers during medieval times[J]. Geophysical Research Letters,2014-01-01,41(5).