Abstract
New procedures seek to subsidize studies on biomass and carbon in forests and wood, mainly of tropical species. Thus, the work aimed to compare four methods of carbon determination in wood. A pre-dried sample of tropical wood was prepared and previously ground. In this sample, the carbon content was determined, applying four different methodologies, namely: conversion of organic matter, volumetric method, colorimetric method and dry combustion (LECO). The Tukey test was performed to determine the difference between the carbon levels obtained by each method. As a result, all methods differed statistically from each other: the colorimetric method underestimated the levels of organic carbon in a tropical wood; although widely used, the volumetric method has become obsolete; and the organic matter conversion method requires specific conversion factors for each material. So, from the environmental point of view and accuracy in obtaining data, the dry combustion method, in addition to being the closest to the standard, is also the one that generates less waste, being the most suitable to determinate carbon in wood.
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Claims 6
Claim · model-written summary
The four methods yielded statistically different carbon levels.
Not reportedTaxonDirection
Verbatim
e0“As a result, all methods differed statistically from each other”
e1“conversion of organic matter, volumetric method, colorimetric method and dry combustion (LECO)”
e2“carbon levels obtained by each method”
Claim · model-written summary
The colorimetric method underestimated organic carbon in tropical wood.
Not reportedTaxonComparator
Verbatim
e0“the colorimetric method underestimated the levels of organic carbon in a tropical wood”
Claim · model-written summary
The authors describe the volumetric method as obsolete.
- Outcome
- the volumetric method has become obsoletee0
Not reportedTaxon
Verbatim
e0“although widely used, the volumetric method has become obsolete”
Claim · model-written summary
Organic matter conversion requires material-specific conversion factors.
- Outcome
- specific conversion factors for each materiale0
Not reportedTaxon
Verbatim
e0“the organic matter conversion method requires specific conversion factors for each material”
Claim · model-written summary
Dry combustion is closest to the standard and generates less waste.
Not reportedTaxon
Verbatim
e0“the dry combustion method, in addition to being the closest to the standard, is also the one that generates less waste”
Claim · model-written summary
The authors recommend dry combustion as most suitable for carbon determination in wood.
Not reportedTaxon
Verbatim
e0“the dry combustion method, in addition to being the closest to the standard, is also the one that generates less waste, being the most suitable to determinate carbon in wood”