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Wet storage of roundwood

effects on wood properties and treatment of run-off water

Jonsson, Maria (2004). Wet storage of roundwood. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 ; 319
ISBN 91-576-6703-9
[Doctoral thesis]

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Wet storage (sprinkling) of wood offers valuable protection against drying out and biological attack, but at the same time there are disadvantages to be considered. Negative effects in the forms of reduction in wood quality and the environmental impact of log yard run-off must be minimised in order to make wet storage effective. In the work underlying this thesis, the effect of different sprinkling water qualities on changes in wood properties during storage was studied. A new method for treating log yard run-off by using it to irrigate soil-plant systems was also evaluated. Sprinkling experiments were conducted both indoors and outdoors in which the effects of sprinkling on the wood quality of Norway spruce (Picea abies) pulpwood piles were examined. Soil-plant systems with willows (Salix schwerinii x Salix viminalis), alder (Alnus glutinosa) and couchgrass (Elymus repens) were irrigated with Norway spruce log yard run-off and evaluated both in lysimeters and in the field (couchgrass) for their purification capacity. Sprinkling water quality, in terms of salinity, did not affect the inorganic content of wood during storage. Brackish waters can be used without increasing the risk for raising the inorganic contents. Neither did sprinkling with fresh or recycled water affect wood brightness. Factors other than those studied determine the optimal wet storage regime. The composition of different log yard run-offs is very different, but they are all rich in oxygen-consuming organic material. Irrigation of soil-plant systems purifies log yard run-off even at very high irrigation intensities and is a convenient method for practical use. The irrigation intensity, rather than the soil type or plant species, is the major factor for the efficiency since lower intensities lead to both better purification and greater possibilities for long-term sustainability.

Authors/Creators:Jonsson, Maria
Title:Wet storage of roundwood
Subtitle:effects on wood properties and treatment of run-off water
Series Name/Journal:Acta Universitatis Agriculturae Sueciae. Silvestria
Year of publishing :September 2004
Number of Pages:39
ALLI. Jonsson, M. & Persson, E. 2004. Sprinkling wood using brackish water – effects on the inorganic content of wood. Nordic Pulp and Paper Research Journal, 19(3):366-371. II. Jonsson, M., Lind, T., Elowson, T. & Lönnberg, B. Wet storage of Norway spruce (Picea abies) pulpwood with fresh and recycled water – Effects on wood and water quality. (Submitted) III. Jonsson, M., Dimitriou, I., Aronsson, P. & Elowson, T. Effects of soil type, irrigation volume and plant species on treatment of log yard run-off in lysimeters. Water Research, 38(16):3634-3642. IV. Jonsson, M., Dimitriou, I., Aronsson, P. & Elowson, T. Treatment of log yard run-off by irrigation of grass and willows. (Submitted)
Place of Publication:Uppsala
ISBN for printed version:91-576-6703-9
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:J Handling, transport, storage and protection of agricultural products > J12 Handling, transport, storage and protection of forest products
Subjects:Not in use, please see Agris categories
Agrovoc terms:sprinkler irrigation, water quality, discoloration, purification, lysimeters, timberyards, wood properties, picea abies
Keywords:sprinkling, water quality, Picea abies, log yard run-off, inorganic content, discolouration, purification, retention, lysimeters
Permanent URL:
ID Code:645
Department:(S) > Institutionen för skogens produkter och marknader (t.o.m. 061231)
Deposited By: Maria Jonsson
Deposited On:27 Sep 2004 00:00
Metadata Last Modified:02 Dec 2014 10:06

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