| Registro completo |
| Provedor de dados: |
Acta Agron. (Palmira)
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| País: |
Colombia
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| Título: |
Analytical methods comparison for soil organic carbon determination in Andean Forest of Sangay National Park-Ecuador
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| Autores: |
Cargua Catagña,Franklin Enrique
Rodríguez Llerena,Marco Vinicio
Damián Carrión,Diego Armando
Recalde Moreno,Celso Guillermo
Santillán Lima,Guido Patricio
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| Data: |
2017-09-01
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| Ano: |
2017
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| Palavras-chave: |
Calcination
Combustion
DUMAS
LOI
Organic material
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| Resumo: |
Abstract A relationship among total organic carbon content determined by ignition loss (LOI) and DUMAS combustion methods, were perfomed in evergreen Andean eyebrow forest soils, southwestern zone of Sangay National Park- Ecuador, where three conglomerates were established as follows: (C) with five plots (P) with plots of 20 x 20 m. In each plot, five digging trenches and four soil samples were carried out at different depths: 0-10, 10-20, 20-30 and> 30 cm, respectively. It is observed that the amount of total organic carbon obtained by the DUMAS and LOI method (R2 = 0.99) does not differ significantly. However, the DUMAS total organic carbon determination methodology showed greater precision with regard to LOI, thus becoming a good alternative to be used as a reference method. In addition, the operability in the laboratory is reflected in the reduction of time and optimization of the human resource. The correlation level shows a low level of significance among these methods, the variation is greater in the DUMAS method (3.38%), due to the analyzed volumes of the samples and the auxiliary equipment level of precision.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300408
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| Editor: |
Universidad Nacional de Colombia
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| Relação: |
10.15446/acag.v66n3.52467
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| Formato: |
text/html
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| Fonte: |
Acta Agronómica v.66 n.3 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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