Blue intensity in Pinus sylvestris tree-rings:: developing a new palaeoclimate proxy

被引:106
作者
Campbell, Rochelle
McCarroll, Danny
Loader, Neil J.
Grudd, Hakan
Robertson, Iain
Jalkanen, Risto
机构
[1] Univ Coll Swansea, Sch Environm Soc, Dept Geog, Swansea SA2 8PP, W Glam, Wales
[2] Univ Stockholm, Dept Phys Geog & Quaternary Geol, SE-10691 Stockholm, Sweden
[3] Royal Swedish Acad Sci, Abisko Sci Res Stn, SE-98107 Abisko, Sweden
[4] Rovaniemi Res Unit, Finnish Forest Res Inst, FI-96301 Rovaniemi, Finland
基金
英国自然环境研究理事会;
关键词
reflected light image analysis; blue intensity; dendrochronology; dendroclimatology; Scots pine; relative density; tree line; palaeoclimate;
D O I
10.1177/0959683607080523
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
Minimum blue intensity measurements of resin-extracted Pinus sylvestris (L.) samples, conducted using a flat-bed scanner and commercially available software, are shown to provide a robust and reliable surrogate for maximum latewood density. Blue intensity data from 15 trees, from three stands, are reported relative to a standard blue-scale in a manner similar to grey-scale calibration in x-ray densitometry. The resulting time series are highly correlated with x-ray densitometry data generated from the same samples and preserve the same high level of signal strength. Sensitivity to summer climate variables is similar to that identified in the relative density record, demonstrating that minimum blue intensity can also be used for the study of climate change. While not a replacement for the powerful range of x-ray densitometry techniques, blue intensity provides an inexpensive and accessible alternative for accessing palaeoclimatic information.
引用
收藏
页码:821 / 828
页数:8
相关论文
共 30 条
[1]  
Andersson N, 1996, ECOL B, V45, P11
[2]   Batch measurements of wood density on intact or prepared drill cores using x-ray microdensitometry [J].
Bergsten, U ;
Lindeberg, J ;
Rindby, A ;
Evans, R .
WOOD SCIENCE AND TECHNOLOGY, 2001, 35 (05) :435-452
[3]   SUMMER TEMPERATURE PATTERNS OVER EUROPE - A RECONSTRUCTION FROM 1750-AD BASED ON MAXIMUM LATEWOOD DENSITY INDEXES OF CONIFERS [J].
BRIFFA, KR ;
JONES, PD ;
SCHWEINGRUBER, FH .
QUATERNARY RESEARCH, 1988, 30 (01) :36-52
[4]   UNUSUAL 20TH-CENTURY SUMMER WARMTH IN A 1,000-YEAR TEMPERATURE RECORD FROM SIBERIA [J].
BRIFFA, KR ;
JONES, PD ;
SCHWEINGRUBER, FH ;
SHIYATOV, SG ;
COOK, ER .
NATURE, 1995, 376 (6536) :156-159
[5]  
CLEAVELAND M K, 1986, Tree-Ring Bulletin, V46, P13
[6]  
Cook E.R., 1986, TreeRing Chronol. West. North Am., P50
[7]  
Cook E.R. L.A. Kairiukstis., 2013, METHODS DENDROCHRONO
[8]   The supra-long Scots pine tree-ring record for Finnish Lapland:: Part 1, chronology construction and initial inferences [J].
Eronen, M ;
Zetterberg, P ;
Briffa, KR ;
Lindholm, M ;
Meriläinen, J ;
Timonen, M .
HOLOCENE, 2002, 12 (06) :673-680
[9]  
Fritts H., 1976, TREE RINGS CLIMATE
[10]   Climatic signal of earlywood vessels of oak on a maritime site [J].
Garcia-González, I ;
Eckstein, D .
TREE PHYSIOLOGY, 2003, 23 (07) :497-504