BLUE INTENSITY IN PINUS SYLVESTRIS TREE RINGS: A MANUAL FOR A NEW PALAEOCLIMATE PROXY

被引：61

作者：

Campbell, Rochelle ^{[1
]}

McCarroll, Danny ^{[1
]}

Robertson, Iain ^{[1
]}

Loader, Neil J. ^{[1
]}

Grudd, Hakan ^{[2
]}

Gunnarson, Bjorn ^{[2
,3
]}

机构：

[1] Swansea Univ, Coll Sci, Dept Geog, Swansea SA2 8PP, W Glam, Wales

[2] Stockholm Univ, Dept Phys Geog & Quaternary Geol, Bert Bolin Ctr Climate Res, SE-10691 Stockholm, Sweden

[3] Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden

来源：

TREE-RING RESEARCH | 2011年 / 67卷 / 02期

关键词：

Dendrochronology; Scots pine; x-ray density; resin extraction; Fennoscandia; LIGHT IMAGE-ANALYSIS; LATEWOOD DENSITY; STABLE-ISOTOPES; WIDTH; TRACHEIDS; GROWTH; OAK;

D O I：

10.3959/2010-13.1

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Minimum blue intensity is a reflected light imaging technique that provides an inexpensive, robust and reliable surrogate for maximum latewood density. In this application it was found that temperature reconstructions from resin-extracted samples of Pious sylvestris (L.) from Fennoscandia provide results equivalent to conventional x-ray densitometry. This paper describes the implementation of the blue intensity method using commercially available software and a flat-bed scanner. A calibration procedure is presented that permits results obtained by different laboratories, or using different scanners, to be compared. In addition, the use of carefully prepared and chemically treated 10-mm-diameter cores are explored; suggesting that it may not be necessary to produce thin laths with the rings aligned exactly perpendicular to the measurement surface.

引用

页码：127 / 134

页数：8

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