NDLI: Vegetation control effects on untreated wood, crude cellulose and holocellulose δ13C of early and latewood in 3- to 5-year-old rings of Douglas-fir

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Vegetation control effects on untreated wood, crude cellulose and holocellulose δ13C of early and latewood in 3- to 5-year-old rings of Douglas-fir

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Trees : Volume 22, Issue 2, April 2008

Trees : Volume 22, Issue 1, February 2008

Vegetation control effects on untreated wood, crude cellulose and holocellulose δ13C of early and latewood in 3- to 5-year-old rings of Douglas-fir

Content Provider	Springer Nature Link
Author	Ares, Adrian Harrington, Constance A. Terry, Thomas A. Kraft, Joseph M.
Copyright Year	2008
Abstract	The stable carbon (C) composition of tree rings expressed as δ13C, is a measure of intrinsic water-use efficiency and can indicate the occurrence of past water shortages for tree growth. We examined δ13C in 3- to 5-year-old rings of Douglas-fir (Pseudotsuga menziesii (Mirb) Franco) trees to elucidate if decreased water supply or uptake was a critical factor in the observed growth reduction of trees competing with understory herb and shrub vegetation compared to those growing without competition. We hypothesized that there would be no differences in δ13C of earlywood in trees growing in plots with competing vegetation and those in plots receiving complete vegetation control during 5 years because earlywood formed early in the growing season when soil water was ample. We also hypothesized that δ13C in latewood which was formed during the later half of the growing season when precipitation was low, would be greater (less negative) in trees in plots without vegetation control. We then separated early and latewood from rings for three consecutive years and analyzed their δ13C composition. No significant differences in earlywood δ13C in years 3–5 were observed for trees in the two vegetation control treatments. δ13C of untreated latewood separated from wood cores was greater in 4- and 5-year-old rings of trees growing with competing vegetation compared to trees growing without vegetation competition (i.e., −25.5 vs. −26.3‰ for year 4, and −26.1 vs. −26.8‰ for year 5). Results suggest that water shortages occurred in Douglas-fir trees on this coastal Washington site in the latewood-forming portion of the growing season of years 4 and 5 in the no-vegetation control treatment. We also compared δ13C from untreated wood, crude cellulose extracted with the Diglyme–HCl method, and holocellulose extracted with toluene–ethanol to see if the extraction method would increase the sensitivity of the analysis. δ13C values from the two extraction methods were highly correlated with those from untreated samples (r 2 = 0.97, 0.98, respectively). Therefore, using untreated wood would be as effective as using crude cellulose or holocellulose to investigate δ13C patterns in young Douglas-fir.
Starting Page	603
Ending Page	609
Page Count	7
File Format	PDF
ISSN	09311890
Journal	Trees
Volume Number	22
Issue Number	5
e-ISSN	14322285
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-04-30
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Carbon isotopes Plant competition Pseudotsuga menziesii Tree rings Plant Physiology Plant Pathology Plant Anatomy/Development Agriculture Plant Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology Physiology Plant Science Forestry

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Vegetation control effects on untreated wood, crude cellulose and holocellulose ~13c of early and latewood in 3- to 5-year-old rings of douglas-fir.

Linking intra-tree-ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Wood density proxies of adaptive traits linked with resistance to drought in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Dendroclimatic regions of Douglas fir Pseudotsuga menziesii (Mirb.) Franco in western and northern Poland

Vegetation competition effects on aboveground biomass and macronutrients, leaf area, and crown structure in 5-year old Douglas-fir

Radial patterns of carbon isotopes in the xylem extractives and cellulose of Douglas-fir.

Dendroclimatological regions of Douglas fir (Pseudotsuga menziesii Franco) in western Poland

Assessing the climatic sensitivity of Douglas-fir at its northern range margins in British Columbia, Canada

Lignin and cellulose concentrations in roots of Douglas fir and European beech of different diameter classes and soil depths

Vegetation control effects on untreated wood, crude cellulose and holocellulose δ13C of early and latewood in 3- to 5-year-old rings of Douglas-fir

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Vegetation control effects on untreated wood, crude cellulose and holocellulose ~13c of early and latewood in 3- to 5-year-old rings of douglas-fir.

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Vegetation control effects on untreated wood, crude cellulose and holocellulose δ13C of early and latewood in 3- to 5-year-old rings of Douglas-fir