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Decomposition of stump and root systems of Norway spruce in Sweden

a modelling approach

Melin, Ylva and Petersson, Hans and Nordfjell, Tomas (2009). Decomposition of stump and root systems of Norway spruce in Sweden. Forest ecology and management. 257:5, 1445-1451
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Abstract

The demand for quantifying the biomass of stumps and roots and the carbon stored therein is related to aspects of biodiversity, site productivity, atmospheric carbon cycling issues, and the demand for bioenergy. This, in turn, creates a need to develop high-quality tools for estimating biomass and carbon-equivalents in the ground. The objective of this study was to develop decomposition functions for quantifying the remaining dry weight of the biomass of individual stumps and their associated roots in Norway spruce (Picea abies (L.) Karst.). The negative exponential model was chosen for this purpose, combined with a chronosequence approach, involving 99 stumps and their roots from three sites in Sweden. The results showed a relative decay rate of 4.6 % annually for stump and root systems. Based on this rate, the time required for the loss of 50 % (t0.5) and 95 % (t0.95) of the wood is 15 and 64 years, respectively. Although there are many variables that affect decomposition, residual studies indicated that the remaining biomass could be predicted fairly accurately on the basis of the independent variables stump diameter and time.

Authors/Creators:Melin, Ylva and Petersson, Hans and Nordfjell, Tomas
Title:Decomposition of stump and root systems of Norway spruce in Sweden
Subtitle:a modelling approach
Series/Journal:Forest ecology and management (0378-1127)
Year of publishing :2009
Volume:257
Number:5
Page range:1445-1451
Publisher:Elsevier Ltd.
ISSN:0378-1127
Language:English
Publication Type:Journal article
Refereed:Yes
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Forestry
Keywords:biomass, carbon, decay, function, model, Picea abies (L.) Karst
URN:NBN:urn:nbn:se:slu:epsilon-2-99
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-2-99
ID Code:3828
Department:(S) > Dept. of Forest Resource Management
(NL, NJ) > Dept. of Forest Resource Management
Deposited By: Ylva Melin
Deposited On:03 Sep 2009 00:00
Metadata Last Modified:02 Dec 2014 10:25

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