Analytical methods comparison for soil organic carbon determination in Andean Forest of Sangay National Park- Ecuador

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dc.creatorFranklin Enrique Cargua Catagña
dc.creatorMarco Vinicio Rodríguez Llerena
dc.creatorDiego Armando Damián Carrión
dc.creatorCelso Guillermo Recalde Moreno
dc.creatorGuido Patricio Santillán Lima
dc.date2017
dc.date.accessioned2026-07-07T02:34:15Z
dc.descriptionA 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 (R 2 = 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. Keywords: Calcination, combustion, DUMAS, LOI, organic material. 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 (R 2 = 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.
dc.formatapplication/pdf
dc.identifier0120-2812
dc.identifierhttps://www.redalyc.org/articulo.oa?id=169951832016
dc.identifierhttps://www.redalyc.org/journal/1699/169951832016/
dc.identifierhttps://www.redalyc.org/journal/1699/169951832016/html/
dc.identifierhttps://www.redalyc.org/journal/1699/169951832016/169951832016.epub
dc.identifierhttps://www.redalyc.org/journal/1699/169951832016/movil
dc.identifier.urihttp://hdl.handle.net/123456789/419786
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1699
dc.rightsActa Agronómica
dc.sourceActa Agronómica (Colombia) Num.3 Vol.66
dc.subjectAgrociencias
dc.titleAnalytical methods comparison for soil organic carbon determination in Andean Forest of Sangay National Park- Ecuador
dc.typeartículo científico

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