Carbon yeld estimation by infrared spectroscopy in Merostachys skvortzovii (Bambusoidae)
DOI:
https://doi.org/10.5380/rf.v43i2.26729Keywords:
Bambu, Nir, método não destrutivo.Abstract
Abstract
The estimation methods for the soil’s and vegetation’s carbon are critical for the estimates, they are often expensive and involve too much field work and laboratory, reinforcing the need for a methodology of rapid and simple operation and response. So, the objective of this research is to validate the use of infrared analysis to generate estimates that can satisfy the assumptions. The concentrations of carbon from the analysis by the combustion method were compared to the estimates derived from the infrared analysis (NIR), the spectra experienced different pretreatments before modeling in order to obtain the carbon content. In relation to carbon content found in the concerned species, they ranged between 35.87% and 45.58% with an overall average for the contents of 42.63%. The model that better represented variations of the carbon were the spectra under pretreatment by applying the second derivative, resulting in a validation error of 0.822 and an internal calibration coefficient (R ²) of 0.764.
Keywords: Bamboo; Nir; Non-destructive method.
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