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BIOFIX Scientific Journal
Article . 2017 . Peer-reviewed
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BIOFIX Scientific Journal
Article
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BIOFIX Scientific Journal
Article . 2017
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https://dx.doi.org/10.60692/bb...
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Other literature type . 2017
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MODELAGEM DA BIOMASSA RESIDUAL DA COLHEITA DE MADEIRA EM POVOAMENTOS SUBMETIDOS AO DESBASTE COM HARVESTER

MODELAGEM DA BIOMASSA REQUAL DA COLHEITA DE MADIRA EM POVOAMENTOS SUBMETIDOS AO DESBASTE COM HARVESTER
Authors: Carla Krulikowski Rodrigues; Eduardo da Silva Lopes; Afonso Figueiredo Filho; Dimas Agostinho da Silva;

MODELAGEM DA BIOMASSA RESIDUAL DA COLHEITA DE MADEIRA EM POVOAMENTOS SUBMETIDOS AO DESBASTE COM HARVESTER

Abstract

Objetivou-se neste estudo ajustar modelos matemáticos para a estimativa da biomassa residual da colheita de madeira em povoamentos submetidos ao desbaste utilizando dados mensurados pelo harvester. O estudo foi realizado em uma empresa florestal localizada no município de Quedas do Iguaçu, Paraná. Os povoamentos avaliados foram de Pinus taeda L. submetidos ao desbaste nas idades de 7, 8, 9 e 10 anos. Através de um inventário florestal, cubagem com a simulação das medidas obtidas pelo cabeçote harvester e obtenção da biomassa seca dos resíduos, ou seja, acículas, casca, galhos e ponteiras, ajustou-se modelos de biomassa seca dos componentes das árvores presentes na biomassa residual. Por meio do método Stepwise, realizou-se a seleção das variáveis: idade do povoamento (I), diâmetro a 1,3 m do solo (DAP), altura comercial (AC) e volume comercial (VC). Em seguida, calculou-se o coeficiente de determinação ajustado e erro padrão da estimativa em porcentagem. O modelo de biomassa total de resíduos, ajustado com a seleção das variáveis DAP e VC, foi o que apresentou melhores parâmetros estatísticos, com coeficiente de determinação ajustado de 0,85 e erro padrão da estimativa de 26,90%. Tal resultado comprova que o desenvolvimento desses modelos pode se tornar uma ferramenta inovadora para prever a biomassa residual existente ao nível operacional, para que possa ser inserida no hardware da máquina e aumentar a eficiência no planejamento do sistema de cavaqueamento e logística dos resíduos destinados à energia.

Keywords

Biomass (ecology), Agriculture (General), Mensuração Florestal, Estimation of Forest Biomass and Carbon Stocks, Environmental protection, Environmental pollution, Environmental science, S1-972, Utilization of Forest Biomass for Various Applications, Agricultural and Biological Sciences, Engineering, Optimization of Sustainable Biomass Supply Chains, TD169-171.8, FOS: Mathematics, Biology, Nature and Landscape Conservation, Physics, Bioenergia, Life Sciences, Planejamento, Forestry, Agronomy, Forest Site Productivity, TD172-193.5, Mechanics of Materials, Physical Sciences, Environmental Science, Tree Height-Diameter Models, Biomass Estimation, Mathematics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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