Simulação e avaliação econômica de regimes de desbastes e desrama para obter madeira de Pinus taeda livre de nós.

Scolforo, José Roberto Soares; Júnior, Fausto Weimar Acerbi; Oliveira, Antônio Donizette de; Maestri, Roberto

doi:10.5902/19805098500

Cited by 11 publications

(14 citation statements)

References 1 publication

(1 reference statement)

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“…This optimum density obtained for most simulated scenarios differs from that recommended by Scolforo et al (2001) and Acerbi Jr et al (2002), in simulations of management regimes of Pinus taeda.…”

Section: Revenue Optimization and Sensitivity Analysiscontrasting

confidence: 83%

“…This shows that the lack of thinnings in more productive sites considerably reduces ANPV with the advancement of the stand age, which was also reported by Scolforo et al (2001) in simulations of management regimes of Pinus taeda in the state of Paraná.…”

Section: Economic Analysis and Behavior Of Regimessupporting

confidence: 82%

“…The density of 1600 plants per ha was the best option, except for regimes in site IV and indices higher than 8%, in which the optimum density of 1111 plants per ha stood out, being also recommended by Pelkki (1997) and Broderick et al . (1992) for pinus stands in the United States with productive capacities close to those of site IV, as well as by Scolforo et al (2001) in simulations of Pinus taeda.…”

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 84%

“…Scolforo et al (2001) analyzed the number of thinnings in relation to the site productive potential and recommended regimes with less thinnings for inferior sites.…”

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 99%

“…Based on economic analysis, Scolforo et al (2001) concluded that the density of 833 plants per ha was optimal for maximizing profit. However, the effect of the inequality between the prices and costs of production used in both studies allows no reliable comparisons.…”

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 99%

See 4 more Smart Citations

Economic analysis and revenue optimization in management regimes of Pinus taeda

et al. 2017

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Economic analysis and revenue optimization in management regimes of Pinus taeda 1The objective of this work was to select, using operational research techniques, management regimes of Pinus taeda L. that maximize the revenue generated by the wood, considering different attractiveness rates. The OpTimber-LP ® software, which performs the simulations using SisPinus ® software, was used for forest optimization. The regimes consisted of different combinations of forest sites, planting densities, thinning regimes and clearcutting ages, totaling 17,760 regimes per site. Wood production was quantified and evaluated by assortment classes. Planting, thinning and harvesting costs were considered. The Annualized Net Present Value (ANPV) and the Internal Rate of Return (IRR) of each management regime were calculated. As a result, the density of 1,600 plants per ha optimized ANPV for most cases. Optimized regimes included no or only one thinning and provided ANPV of 2,753 and 158 BRL per ha and IRR of 22.9% and 2.9% for sites I and IV, respectively. It was concluded that the optimal number of thinning is reduced in lower quality sites, and the less productive the site, the later the optimal year for clear cutting. The attractiveness rate is a parameter that contributes to the selection of thinning regimes, because the larger the rate, the larger the number of thinning and the earlier they should be carried out.Keywords: operational research; annualized net present value; attractiveness rate; forest site; log assortment. Análise econômica e otimização da receita em regimes de manejo de Pinus taeda L. HassanEste trabalho teve por objetivo selecionar, por meio de técnicas da pesquisa operacional, regimes de manejo de Pinus taeda L. que maximizem a receita com a madeira produzida, considerando diferentes taxas de atratividade. Foi utilizado o software OpTimber-LP ® para a otimização florestal, o qual realiza as simulações por meio do software SisPinus ® . Os regimes foram compostos por diferentes combinações de sítios florestais, densidades de plantio, regimes de desbaste e idades para corte raso, totalizando 17.760 regimes por sítio. A produção de madeira foi quantificada e valorada mediante classes de sortimento. Custos de plantio, desbaste e colheita foram considerados. O Valor Presente Líquido Anualizado (VPLA) e a Taxa Interna de Retorno (TIR) de cada regime de manejo foram calculados. Como resultado, a densidade de 1.600 plantas por ha otimizou o VPLA para a maioria dos casos. Os regimes otimizados incluíram nenhum ou apenas um desbaste e forneceram VPLA de 2.753 e 158 reais por ha e TIR de 22,9% e 2,9%, para os sítios I e IV, respectivamente. Concluiu-se que o número ideal de desbastes é reduzido em sítios com qualidade inferior, e quanto menos produtivo for o sítio, mais tardio será o ano ideal para o corte raso. A taxa de atratividade é um parâmetro que contribui para a determinação de regimes de desbaste, pois quanto maior for essa taxa, maior deve ser o número de desbastes, bem como mais precoces devem ser suas aplica...

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Section: Revenue Optimization and Sensitivity Analysiscontrasting

confidence: 83%

Section: Economic Analysis and Behavior Of Regimessupporting

confidence: 82%

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 84%

“…Scolforo et al (2001) analyzed the number of thinnings in relation to the site productive potential and recommended regimes with less thinnings for inferior sites.…”

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 99%

Section: Revenue Optimization and Sensitivity Analysismentioning

confidence: 99%

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Economic analysis and revenue optimization in management regimes of Pinus taeda

et al. 2017

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Influence of crown thinning on radial growth pattern of Pinus taeda in southern Brazil

2018

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Influence of spacing regimes on the development of loblolly pine (Pinus taeda L.) in Southern Brazil

Cardoso¹,

Lacerda²,

Rosot³

et al. 2013

Forest Ecology and Management

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experiment replicated seven times in the Coast and Cascade ranges of western Oregon, USA. This paper focuses on patterns observed 6 years following thinning. Early-seral cover was related to interactions among broad-scale variation in climate, intermediate-scale variation in insolation, and fi ne-scale neighborhood interactions. Late-seral species cover was related primarily to fi ne-scale neighborhood interactions. Furthermore, cross-scale interactions partially explained patterns of spatial correlation among neighboring subplots for early-seral species but not late-seral species. The authors hypothesize that residual patterns of spatial autocorrelation were related to unmeasured environmental variables for early-seral species and historical conditions (i.e., pre-treatment stand composition and structure) for late-seral species. Results suggest responses of understory plants to overstory density management depend on cross-scale interactions among environmental drivers, neighborhood-scale interactions, and species traits. Future demand for ecosystem services from terrestrial ecosystems from global power production scenarios to 2100: the role of forest biomass. Callesen, I.

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Simulação e avaliação econômica de regimes de desbastes e desrama para obter madeira de Pinus taeda livre de nós.

Cited by 11 publications

References 1 publication

Economic analysis and revenue optimization in management regimes of Pinus taeda

Economic analysis and revenue optimization in management regimes of Pinus taeda

Influence of crown thinning on radial growth pattern of Pinus taeda in southern Brazil

Influence of spacing regimes on the development of loblolly pine (Pinus taeda L.) in Southern Brazil

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