Artículos de revistas
Correlation Of Spectral Variables And Aboveground Carbon Stock Of Agroforestry Systems [correlação De Variáveis Espectrais E Estoque De Carbono Da Biomassa Aérea De Sistemas Agroflorestais]
Registro en:
Pesquisa Agropecuaria Brasileira. , v. 47, n. 9, p. 1261 - 1269, 2012.
0100204X
10.1590/S0100-204X2012000900011
2-s2.0-84871342992
Autor
Bolfe E.L.
Batistella M.
Ferreira M.C.
Institución
Resumen
The objective of this work was to evaluate the correlation between spectral variables and aboveground carbon stock of agroforestry systems in the region of Tomé-Açu, PA, Brazil. Twenty-four vegetation indices from three groups (simple ratio, normalized difference, and complex), calculated from images of the TM/ Landsat-5 sensor acquired in 2008, were tested. The obtained variables were correlated, by means of simple linear regression, to carbon stock from four agroforestry systems with different ages and floristic composition. The correlations obtained among spectral variables and carbon stock were significant in 47% of the tested indices and changed according to the differences in biomass of the analyzed systems. 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