A simple field based method for rapid wood density estimation for selected tree species in Western Kenya

Wood density is an important variable for accurate quantification of woody biomass and carbon stocks. Conventional destructive methods for wood density estimation are resource intensive, prohibiting their use, limiting the application of approaches that would minimize uncertainties in tree biomass e...

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Main Authors: Olale, Kennedy O., Yenesew, Abiy, Jamnadass, Ramni H., Sila, Andrew M., Shepherd, Keith D.
Format: Journal Article
Language:Inglés
Published: Elsevier 2019
Subjects:
Online Access:https://hdl.handle.net/10568/106476
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author Olale, Kennedy O.
Yenesew, Abiy
Jamnadass, Ramni H.
Sila, Andrew M.
Shepherd, Keith D.
author_browse Jamnadass, Ramni H.
Olale, Kennedy O.
Shepherd, Keith D.
Sila, Andrew M.
Yenesew, Abiy
author_facet Olale, Kennedy O.
Yenesew, Abiy
Jamnadass, Ramni H.
Sila, Andrew M.
Shepherd, Keith D.
author_sort Olale, Kennedy O.
collection Repository of Agricultural Research Outputs (CGSpace)
description Wood density is an important variable for accurate quantification of woody biomass and carbon stocks. Conventional destructive methods for wood density estimation are resource intensive, prohibiting their use, limiting the application of approaches that would minimize uncertainties in tree biomass estimates. We tested an alternative method involving tree coring with a carpenter's auger to estimate wood density of seven tropical tree species in Western Kenya. We used conventional water immersion method to validate results from the auger core method. The mean densities (and 95% confidence intervals) ranged from 0.36 g cm−3 (0.25–0.47) to 0.67 g cm−3 (0.61–0.73) for the auger core method, and 0.46 g cm−3 (0.42–0.50) to 0.67 g cm−3 (0.61–0.73) for the water immersion method. The auger core and water immersion methods were not significantly different for four out of seven tree species namely; Acacia mearnsii, Mangifera indica, Eucalyptus grandis and Grevillea robusta. However, wood densities estimated from the auger core method were lower (t (61) = 7.992, P = <0.001). The ease of the auger core method application, as a non-destructive method in acquiring wood density data, is a worthy alternative in biomass and carbon stocks quantification. This method could protect trees outside forests found in most parts of Africa.
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spelling CGSpace1064762024-05-01T08:18:29Z A simple field based method for rapid wood density estimation for selected tree species in Western Kenya Olale, Kennedy O. Yenesew, Abiy Jamnadass, Ramni H. Sila, Andrew M. Shepherd, Keith D. forest resources wood density augers Wood density is an important variable for accurate quantification of woody biomass and carbon stocks. Conventional destructive methods for wood density estimation are resource intensive, prohibiting their use, limiting the application of approaches that would minimize uncertainties in tree biomass estimates. We tested an alternative method involving tree coring with a carpenter's auger to estimate wood density of seven tropical tree species in Western Kenya. We used conventional water immersion method to validate results from the auger core method. The mean densities (and 95% confidence intervals) ranged from 0.36 g cm−3 (0.25–0.47) to 0.67 g cm−3 (0.61–0.73) for the auger core method, and 0.46 g cm−3 (0.42–0.50) to 0.67 g cm−3 (0.61–0.73) for the water immersion method. The auger core and water immersion methods were not significantly different for four out of seven tree species namely; Acacia mearnsii, Mangifera indica, Eucalyptus grandis and Grevillea robusta. However, wood densities estimated from the auger core method were lower (t (61) = 7.992, P = <0.001). The ease of the auger core method application, as a non-destructive method in acquiring wood density data, is a worthy alternative in biomass and carbon stocks quantification. This method could protect trees outside forests found in most parts of Africa. 2019-09 2020-01-09T10:08:26Z 2020-01-09T10:08:26Z Journal Article https://hdl.handle.net/10568/106476 en Open Access application/pdf Elsevier Olale, Kennedy; Yenesew, Abiy; Jamnadass, Ramni; Sila, Andrew; Shepherd, Keith. 2019. A simple field based method for rapid wood density estimation for selected tree species in Western Kenya. Scientific African. 7p. DOI: https://doi.org/10.1016/j.sciaf.2019.e00149
spellingShingle forest resources
wood density
augers
Olale, Kennedy O.
Yenesew, Abiy
Jamnadass, Ramni H.
Sila, Andrew M.
Shepherd, Keith D.
A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title_full A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title_fullStr A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title_full_unstemmed A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title_short A simple field based method for rapid wood density estimation for selected tree species in Western Kenya
title_sort simple field based method for rapid wood density estimation for selected tree species in western kenya
topic forest resources
wood density
augers
url https://hdl.handle.net/10568/106476
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