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Nondestructive detection of decay in living trees

Larsson, Bertil LU ; Bengtsson, Bengt A LU and Gustafsson, Mats LU (2004) In Tree Physiology 24(7). p.853-858
Abstract
We used a four-point resistivity method to detect wood decay in living trees. A low-frequency alternating current was applied to the stem and the induced voltage measured between two points along the stem. The effective resistivity of the stem was estimated based on stem cross-sectional area. A comparison within a group of trees showed that trees with butt rot had an effective resistivity that was at least a factor of two lower than that of healthy trees. In tests on several groups of Norway spruce (Picea abies (L.) Karst.) comprising more than 300 trees in total, the method detected butt rot with high accuracy. We validated the method both by measurements and by finite element modeling and simulations.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Tree Physiology
volume
24
issue
7
pages
853 - 858
publisher
Oxford University Press
external identifiers
  • pmid:15123457
  • wos:000222712700015
  • scopus:9144273935
ISSN
1758-4469
DOI
10.1093/treephys/24.7.853
language
English
LU publication?
yes
id
49e95c2f-d618-4cdc-acf5-be501f816279 (old id 144250)
date added to LUP
2007-07-09 09:50:30
date last changed
2017-10-22 04:35:25
@article{49e95c2f-d618-4cdc-acf5-be501f816279,
  abstract     = {We used a four-point resistivity method to detect wood decay in living trees. A low-frequency alternating current was applied to the stem and the induced voltage measured between two points along the stem. The effective resistivity of the stem was estimated based on stem cross-sectional area. A comparison within a group of trees showed that trees with butt rot had an effective resistivity that was at least a factor of two lower than that of healthy trees. In tests on several groups of Norway spruce (Picea abies (L.) Karst.) comprising more than 300 trees in total, the method detected butt rot with high accuracy. We validated the method both by measurements and by finite element modeling and simulations.},
  author       = {Larsson, Bertil and Bengtsson, Bengt A and Gustafsson, Mats},
  issn         = {1758-4469},
  language     = {eng},
  number       = {7},
  pages        = {853--858},
  publisher    = {Oxford University Press},
  series       = {Tree Physiology},
  title        = {Nondestructive detection of decay in living trees},
  url          = {http://dx.doi.org/10.1093/treephys/24.7.853},
  volume       = {24},
  year         = {2004},
}