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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Abstract
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 | ||||
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Title: | Wood and fibre properties of fertilized Norway spruce | ||||
Series Name/Journal: | Acta Universitatis Agriculturae Sueciae. Silvestria | ||||
Year of publishing : | September 2003 | ||||
Number: | 288 | ||||
Number of Pages: | 33 | ||||
Papers/manuscripts: |
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Place of Publication: | Uppsala | ||||
ISBN for printed version: | 91-576-6522-2 | ||||
ISSN: | 1401-6230 | ||||
Language: | English | ||||
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 | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-84 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-84 | ||||
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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