2016
DOI: 10.1590/2179-8087.082714
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Inventário Florestal Utilizando Técnicas de Silvicultura de Precisão em Povoamentos de Eucalyptus grandis Hill ex Maiden

Abstract: RESUMOEste estudo teve por objetivo determinar o estoque de madeira por amostragem sistemática e pelas tecnologias de geoinformação a fim de elaborar mapas de produtividade florestal, como forma de pós-estratificação do inventário florestal. Foram alocadas 24 parcelas de 625 m 2 posicionadas a cada 70 m de distância. O mapa de produtividade foi gerado após seleção de um modelo para ajuste do semivariograma entre os volumes das parcelas. Estimou-se um volume total de 3.753,9 m 3 com o inventário florestal por a… Show more

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Cited by 8 publications
(12 citation statements)
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“…The adjusted coefficient of determination (R²) was also numerically higher in the direction-dependent interpolation method (Table 3). Similar R² values were reported by Leal et al (2011), who also worked with ordinary kriging to map the productive units of a Eucalyptus urophylla stand, as well as by Santos et al (2017), when studying stands of Eucalyptus grandis Hill ex Maiden.…”
Section: Resultssupporting
confidence: 82%
“…The adjusted coefficient of determination (R²) was also numerically higher in the direction-dependent interpolation method (Table 3). Similar R² values were reported by Leal et al (2011), who also worked with ordinary kriging to map the productive units of a Eucalyptus urophylla stand, as well as by Santos et al (2017), when studying stands of Eucalyptus grandis Hill ex Maiden.…”
Section: Resultssupporting
confidence: 82%
“…Regarding the use of wood in the construction sector, this study assumed the use of eucalyptus, which already accounts for 72% 99 of all planted forests in Brazil, and also wood associated with deforestation in the Amazon. The emission factors of eucalyptus wood and of wood associated with deforestation were calculated based on the wood volume of the forest (290 m 3 ha −1 100,101 and 180 m 3 ha, −1, 102 respectively), the basic density of the wood (0.49 g cm −3 103 and 0.65 g/cm, 3, 104 respectively), and the emission factor from the silviculture of eucalyptus and from deforestation‐induced land‐use change (−61 tCO 2 eq/ha 105,106 and 94.2 tCO 2 eq/ha, 107 respectively). It worth noting that the use of wood from planted forest in the construction sector can also act as carbon sink, as discussed in Churkina et al .…”
Section: Methodsmentioning
confidence: 99%
“…Em outra estimativa em relação ao hectare de plantio arbóreo que pode absorver aproximadamente 10 toneladas de carbono por hectare/ ano, da atmosfera (RIBAS et al 2009). Contudo, não pode deixar de salientar que as relações dendrométricas têm uma importância na avaliação da produtividade e volume de povoamentos florestais (SANTOS et al 2017 O carbono orgânico foi determinado através da serapilheira, folhas e cascas (previamente seca) moídas em moinho de facas tipo Willey com peneira de 20 mesch. Pesou-se 2g da biomassa moída em cadinhos de porcelana previamente secos em estufa por 1h a 60°C e secou-a em estufa a 110°C por 3h.…”
Section: A éTica Do Gênero Humanounclassified