Márcio Lopes da Silva

Quantificação do estoque de carbono e avaliação econômica de diferentes alternativas de manejo em um plantio de eucalipto

Este estudo teve por objetivos: quantificar o estoque de madeira para a producao de carvao e serraria em uma floresta de eucalipto; quantificar o estoque de carbono nos diferentes compartimentos da floresta; e avaliar economicamente alternativas de manejo, com vista a insercao de povoamentos florestais no mecanismo de desenvolvimento limpo e na venda de creditos de carbono. Para isso, realizou-se um inventario florestal em uma plantacao de Eucalyptus grandis, com 6 anos de idade, no Municipio de Vicosa, Minas Gerais. Apos as analises, verificou-se que: a) o fuste e o componente da arvore que mais contribui, em media, para o total de carbono da parte aerea (81,84%), seguido por casca (8,05%), galhos (7,74%) e folhas (2,57%); b) 47,7 toneladas de carbono por hectare estao estocadas na parte aerea das arvores; 14,71 nas raizes e 8,72 na manta orgânica, totalizando 71,13 toneladas de carbono por hectare; c) a producao de madeira somente para a venda de creditos de carbono, sem considerar o seu uso final, e economicamente viavel, segundo criterios quantitativos de avaliacao do projeto, se a tonelada de carbono for comercializada a precos maiores que US

Análise econômica do cultivo e extração do óleo essencial de Melaleuca alternifolia Cheel

10,07; e d) a venda de creditos de carbono torna o empreendimento ainda mais atrativo economicamente, sobretudo porque a receita e auferida no inicio do projeto.

Avaliação econômica e financeira de projetos de fornos dos tipos container industrial e retangular de 40 estéreos

RESUMO n Este trabalho estudou a viabilidade econUmica do cultivo e extraAao do Uleo essencial de um plantio de Melaleuca alternifolia Cheel. Foi realizado um levantamento dos rendimentos e custos da cultura das atividades de produAao de mudas, implantaAao, manutenAao, colheita, transporte e extraAao do Uleo essencial, bem como as receitas. A anAElise econUmica foi realizada utilizando-se os seguintes indicadores econUmicos: Valor Presente LIquido, Razao BenefIcio/Custo, Taxa Interna de Retorno, Valor Anual Equivalente e Custo MOdio de ProduAao. Posteriormente foi feita uma anAElise de sensibilidade, utilizando-se a tOcnica de simulaAao de Monte Carlo, por meio do software @Risk. Uma vez reunidos e analisados os dados, fixaram-se par‚metros mInimos, mOdios e mAEximos para as distribuiAies de probabilidade triangular dos custos de implantaAao, manutenAao, colheita, destilaAao e da receita, oriundos do projeto de produAao do Uleo essencial, permitindo uma melhor avaliaAao dos indicadores econUmicos perante a anAElise de riscos. Como resultado, obteve-se um rendimento de 81,82 L de Uleo essencial por ha por ano, conseqentemente um lucro anual de R

Projeção do estoque de carbono e análise da geração de créditos em povoamentos de eucalipto

497,18 por hectare, enquanto a anAElise de sensibilidade apresentou uma baixa probabilidade de a atividade tornar-se inviAEvel economicamente. ABSTRACT n This paper describes the study of the economic viability of cultivation and essential oil extraction of Melaleuca alternifolia Cheel. An assessment was made of profits and costs for activities of seedling production, implantation, maintenance, harvesting, transport and essential oil extraction, as well as revenues. The economic analysis was accomplished using the following economic indicators: Net Present Value, Benefit/Cost Ratio, Internal Return Rate, Equivalent Annual Value and Average Cost of Production. Then a sensibility analysis was performed using the simulation technique of Monte Carlo n software @Risk. Once data were collected and analyzed, minimum, medium and maximum parameters for triangular probability distribution of implantation, maintenance, harvest, distillation and revenue costs were fixed, derived from the project of essential oil production, allowing a better evaluation of economic indicators before the risk analysis. As result a productivity of 81.82 L essential oil ha -1 year -1 was achieved with an annual profit of R

A função de produção da indústria brasileira de celulose, em 2004

497,18 per hectare, whereas the sensibility analysis gave a low probability for the activity to become economically unviable.

Certificação florestal e o mercado moveleiro nacional

This work aimed at the economic and financial analysis of a project with 100 units of both industrial container and 40-st rectangular kilns for charcoal production. The following financial indicators were used in the analysis: profitability, yield, payback period and break-even point. The economic indicators used in the economic analysis were VPL, TIR, B(C)PE and B/C. In this study, the two kilns are economic and financially viable. However, the container was more lucrative than the 40-st rectangular kiln.

Análise do mercado brasileiro de celulose, 1969-2005

The objectives of this study were to predict volumetric yield and carbon stock in the stems of eucalypt plantation trees, as well as to economically evaluate the inclusion of the Reduced Emission Certificates (RECs) in forest projects by quantitative criteria. Thus, data from Eucalyptus grandis stands, located in Guanhaes-Minas Gerais, were used. Based on the volume and carbon equations for the stems of individual trees and for 95 permanent plots, Clutter growth and production model (1983) were adjusted for volumetric production and carbon stock projection. After analysis, it was verified that: a) the growth and yield model proposed by Clutter (1983) provided technical cutting ages according to the productivity capacity of the stands, both for volumetric yield and carbon stock; b) the technical cutting ages (TCAs) were practically the same, considering the volumetric and carbon stocks; c) the economic rotations were greater than the technical cutting age in sites with low and average productivity (S = 20 and S = 26), regardless of the inclusion or not of the CERs in the analysis; d) the CERs contributed to the economic viability of the forest projects in low productivity sites, considering the budgets for the establishment of the projects; e) in the sensitivity analysis, the item wood price had the greatest influence on the economic viability of the projects. In contrast, the Reduced Emission Certificates (RECs) had little influence.

Econometric analysis of Brazilian import demand for natural rubber during 1964-2005

O segmento de celulose e papel tem-se destacado como o mais importante do setor florestal no Brasil, e o conhecimento das relacoes de producao e das caracteristicas da tecnologia pode gerar informacoes uteis para o setor. Este trabalho teve como objetivos especificar e ajustar a funcao de producao da industria de celulose no Brasil, no ano de 2004, utilizando-se como referencia os fundamentos da teoria da producao. Foi empregado um modelo Cobb-Douglas, em que as variaveis explicativas foram terra, trabalho e capital. As estimativas confirmaram que essas variaveis afetam, significativamente, a producao de celulose. Os resultados, usando o metodo dos Minimos Quadrados Ordinarios (MQO), apontaram que os fatores de producao analisados estao sendo empregados racionalmente na industria de celulose no Brasil. Essa industria apresenta retorno constantes a escala, terra e trabalho constituem nos fatores mais importantes na formacao da quantidade produzida de celulose e as empresas mostram-se intensivas em capital.

TECHNICAL ANALYSIS AND COSTS ESTIMATES OF A COMPLETE ENUMERATION FOREST INVENTORY OF A SUBMONTANE SEMIDECIDUOUS SEASONAL FOREST

The objective of this work was to evaluate the insertion of forest certification in the national furniture market. The data used for the accomplishment of the present study came from the Forest Stewardship Council (FSC Brazil) and the questionnaires applied to the furniture companies with certified products. Companies in the State of Sao Paulo and in the South Region presented certification, mainly the exporting companies. The furniture companies intended to provide the domestic market did not demonstrate great interest in forest certification because customers did not demand it.

Análise de tendência do mercado internacional de aglomerado

The wood pulp and paper sector contributes significantly for the Brazilian economy . The knowledge of the wood pulp market structure is important for production planning, commercialization and forecast for the sector. The main objective of the present study it to specify and estimate the domestic supply and demand of wood pulp, as well as the export supply and demand functions, in the period from 1969 to 2005. The results provided by the two-stage least squares method (TSLS) indicated that domestic and export supply and demand of wood pulp are price inelastic. The domestic demand is inelastic in relation to income while the export demand is elastic in relation to income. The domestic supply is more affected by changes in machinery and equipment prices. The export supply is affected by changes in production and domestic demand while the export demand is affected by changes in the income of the importing countries.