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Wood and fibre properties of fertilized Norway spruce

Lundgren, Christina (2003). Wood and fibre properties of fertilized Norway spruce. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 ; 288
ISBN 91-576-6522-2
[Doctoral thesis]

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Very intensive forest management is relatively unexplored in Sweden, and while there is interest in pursuing e.g. the use of fertilizers on selected areas, there is concern about the quality of the wood when growth rate increases. This thesis summarises three studies on wood and fibre properties of Norway spruce grown in two nutrient optimisation experiments and one study from a Norway spruce provenance trial in Sweden. The nutrient optimisation trials were located at 57'08'N, 14'45'E and at 64'07'N, 19'27'E. Increment cores (12 mm diameter) were sampled at breast height from three different treatments and a control. The treatments were irrigation, irrigation combined with liquid fertilization and solid fertilization. Density, microfibril angle, cell wall thickness and radial and tangential cell widths were measured on the wood samples and averages per annual rings and fibre property distributions were analysed. Density, microfibril angle, and cell wall thickness were clearly affected by fertilization. Density and cell wall thickness decreased due to fertilization and microfibril angle increased. Cell widths were moderately affected. Variables describing the inherent development from the pith, such as distance or ring number from pith and ring width, an expression of temporal growth rate and an indicator of varying amounts of earlywood and latewood, were the most important factors explaining differences in fibre properties. The provenance study was situated at 57'56'N, 5'39'E. The differences in density found between provenances were lower than differences caused by fertilization. The possible impact of intense commercial fertilization of Norway spruce for utilization in the pulp and paper industry is discussed.

Authors/Creators:Lundgren, Christina
Title:Wood and fibre properties of fertilized Norway spruce
Series Name/Journal:Acta Universitatis Agriculturae Sueciae. Silvestria
Year of publishing :September 2003
Number of Pages:33
ALLI. Lundgren, C. and Persson, B. 2002. Provenance variation in stem wood basic density and dry matter for Picea abies grown on farmland in Southern Sweden. Forest Genetics 9(2): 103-110. II. Lundgren, C. Cell wall thickness and tangential and radial cell diameter of fertilized and irrigated Picea abies. (Submitted to Silva Fennica.) III. Lundgren, C. Microfibril angle and density patterns of fertilized and irrigated Norway spruce. (Submitted to Silva Fennica.) IV. Lundgren, C. Statistical distributions of tracheid diameter and wall thickness of fertilized Norway spruce.
Place of Publication:Uppsala
ISBN for printed version:91-576-6522-2
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:K Forestry > K50 Processing of forest products
F Plant production > F50 Plant structure
Subjects:Not in use, please see Agris categories
Agrovoc terms:picea abies, tracheids, cell walls, thickness, fertilization, irrigation, wood properties, sweden
Keywords:Picea abies, tracheid width, cell wall thickness, distributions, MFA, fertilization, irrigation, microfibril angle
Permanent URL:
ID Code:360
Department:(S) > Institutionen för skogens produkter och marknader (t.o.m. 061231)
Deposited By: Christina Lundgren
Deposited On:19 Sep 2003 00:00
Metadata Last Modified:02 Dec 2014 10:04

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