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  • 1
    In: Scientia Forestalis, Instituto de Pesquisa e Estudos Florestais (IPEF), Vol. 49, No. 132 ( 2021-12-1)
    Type of Medium: Online Resource
    ISSN: 2318-1222 , 1413-9324
    Language: Unknown
    Publisher: Instituto de Pesquisa e Estudos Florestais (IPEF)
    Publication Date: 2021
    detail.hit.zdb_id: 2072651-X
    SSG: 23
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  • 2
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 31, No. 2 ( 2007-04), p. 307-314
    Abstract: This study analyzed the viability of implantation of futures contract of reforestation wood in Brazil, with focus on the market of Eucalyptus pulpwood production. For this purpose, the micro analysis model of Pennings and Leuthold (1999) was taken as reference. Data were collected through questionnaires addressed to the cellulose companies. The results indicated that the characteristics of managers and companies were shown favorable to the development of this type contract, since all the managers present individual characteristics prone to negotiate in exchange, as high education level and age below 60 years. Besides, the results showed a probable demand for future wood contracts in Brazil by the companies, and that they have enough financial conditions to operate in exchanges, are exposed to risk and are risk averse, and that employees of almost all the companies receive training in the economic and administration areas. It was therefore concluded that there is potential for the implantation of a futures contract of pulpwood in Brazil.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2007
    detail.hit.zdb_id: 2111203-4
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  • 3
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 32, No. 1 ( 2008-02), p. 113-118
    Abstract: This study aimed to characterize the structure of the international market of particleboard in relationship to its concentration and inequality and to decompose the variations in particleboard export in the major participant countries in terms of world trade growth effect, destination effect and competitiveness effect from 1998 to 2002. Concentration level and inequality favor anti-competitive practices and competitiveness effect, composed by endogenous aspects and market conditions, such as international agreements, do not favor Brazilian export growth.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2008
    detail.hit.zdb_id: 2111203-4
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  • 4
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 27, No. 5 ( 2003-10), p. 677-688
    Abstract: The main objective of this work was to evaluate, through Integer Programming, the consequences of using Linear Programming with post rounding out of the responses, with emphasis on even-aged forest regulation. Thus, a simplified forest regulation problem was proposed out and solved by model I by means of Linear Programming, Linear Programming with post rounding out, and Integer Programming. It was concluded that the rounding out of responses obtained by the model solved by Linear Programming led to an unviable solution for the proposed regulation problem. The same did not occur with the Integer Programming model, which presented a viable, optimal regulation plan, showing that, from a mathematical viewpoint, responses with rounding out of solution using Linear Programming models should not be adopted.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2003
    detail.hit.zdb_id: 2111203-4
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  • 5
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 32, No. 6 ( 2008-12), p. 979-992
    Abstract: 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 Guanhães-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.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2008
    detail.hit.zdb_id: 2111203-4
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  • 6
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 35, No. 2 ( 2011-04), p. 329-339
    Abstract: This study aimed to evaluate the impacting profile of the technological innovation process on forestry harvesting. We analyzed the innovation process on the traditional subsystem change (chainsaw + forwarder) to the innovative (Feller Buncher + Clambunk Skidder). We used the consolidated method for environmental impact assessment of technological innovation on agro-livestock, which assesses the environmental performance of a certain methodology or technology in relation to that previously established. The method was adapted for the impacts evaluation on forestry harvesting. The impacts were analyzed for the physical media indicators (air, soil, water), biotic (flora and fauna), and anthropic indicators. Matrices were prepared for each indicator, which were weighted in relation to the occurrence scale and importance scale factor. Technicians on the forest harvesting field filled the matrices using changing coefficients previously defined. The impact coefficient resulted from the coefficient changing product by weighting factors, being evaluated on a scale of -15 to +15. The overall impact index has been determined for the same scale pattern. According to three evaluations average, two indicators showed a positive impact coefficient (health and management), six were negative coefficient (air, soil, flora, fauna, landscape, and employment), and one remained unchanged (water). The overall impact index was positive (1.29), indicating in the global context environmental conditions favorable to the innovative subsystem adoption.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2011
    detail.hit.zdb_id: 2111203-4
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  • 7
    In: Revista Agrogeoambiental, IFSULDEMINAS (Instituto Federal do Sul de Minas), Vol. 9, No. 3 ( 2017-11-01)
    Abstract: O enfoque da conservação e manutenção dos recursos naturais, assim como os mecanismos de reconhecimento e compensação, tem ganhado aceitação no ambiente de políticas públicas. Uma ação que demonstra isso é a criação do Imposto sobre Circulação de Mercadorias e Prestação deServiços Ecológico (ICMS Ecológico). Partindo-se do pressuposto de que vários municípios têm se aproveitado desse instrumento para aumentar suas receitas, sem aplicar corretamente esses recursos em medidas de preservação ambiental, o objetivo geral deste trabalho foi analisar a relação entre as variáveis socioeconômicas e ambientais com o montante de ICMS ecológico repassado pelo estado e recebido pelos municípios. Para tanto, dez municípios do estado de Minas Gerais foram selecionadose tiveram seus dados analisados durante o período de 2005-2010. As variáveis consideradas para análise foram: Investimento em Saneamento, Gestão Ambiental, População, Receita Total e Índice FIRJAN de Desenvolvimento Municipal - IFDM. Para verificar as relações entre as variáveis foi utilizada a análise de componentes principais (PCA), que é uma técnica matemática da análise multivariada. Os resultados mostraram que o ICMS Ecológico não tem correlação com a aplicação de recursosem gestão ambiental e saneamento, bem como não apresenta relação com o desenvolvimento social dos municípios avaliados. O município de Extrema possui a menor arrecadação de ICMS Ecológico e, ao mesmo tempo, os maiores índices de desenvolvimento social e investimentos em gestão ambiental. Desta forma, conclui-se que a maior arrecadação do ICMS Ecológico não se traduz em maiores investimentos em saneamento e gestão ambiental, tampouco melhorias sociais.
    Type of Medium: Online Resource
    ISSN: 2316-1817 , 1984-428X
    Language: Unknown
    Publisher: IFSULDEMINAS (Instituto Federal do Sul de Minas)
    Publication Date: 2017
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  • 8
    In: FLORESTA, Universidade Federal do Parana, Vol. 41, No. 3 ( 2011-09-22)
    Abstract: Este trabalho teve como objetivo avaliar os impactos ambientais quando da mudança do subsistema tradicional (motosserra + guincho arrastador) para o inovado (motosserra + skidder de esteiras). Utilizou-se um método consolidado para avaliação de impacto ambiental da inovação tecnológica na agropecuária, que avalia o desempenho ambiental de uma tecnologia em relação àquela previamente estabelecida, adaptado para avaliação de impactos na colheita florestal. Os impactos foram analisados para indicadores dos meios físico (atmosfera, solo, água), biótico (flora e fauna) e antrópico (emprego, saúde, paisagismo e gestão). Matrizes foram elaboradas para cada indicador, sendo elas ponderadas em relação à escala de ocorrência e fator de importância. As matrizes foram preenchidas por técnicos florestais, que utilizaram coeficientes de alteração. O coeficiente de impacto resultou do produto do coeficiente de alteração pelos fatores de ponderação, sendo avaliado numa escala de -15 a +15, determinando-se o índice geral de impacto na mesma escala. De acordo com os resultados, sete indicadores apresentaram coeficiente total médio de impacto positivo e dois coeficientes negativos. O índice geral de impacto mostrou-se positivo (+1,44), indicando aspecto vantajoso no contexto ambiental quando da adoção do subsistema inovado.Palavras chave: Inovação tecnológica; colheita florestal; impacto ambiental; indicadores. AbstractEnvironmental impacts in the replacing of the cable skidderby track skidder. This work aimed to evaluate environmental impacts of replacing traditional subsystem (Chainsaw + Cable Skidder) by an innovated subsystem (Chainsaw + Track Skidder). In order to do that, it used an already known method for evaluation of environmental impact of technological innovation on agriculture, which evaluates environmental performance of a new technology in relation to a previously established one. This method was adapted for evaluation of impacts on forest harvesting. The impacts had been analyzed in relation to the following indicators: physical (atmosphere, soil, water), biotic (plants and fauna), and anthropic (employment; health, landscaping and management). Matrices had been elaborated to each component, which had been weight in relation to scale of occurrence and factor of importance. The matrices were filled in by technicians, who used coefficients of alteration previously defined. The impact coefficient resulted from the product of alteration coefficient by weight factors, evaluated in scale of -15 to +15. The overall impact index was determined by the same scale. According to results, seven components presented positive impact coefficient and two of them presented negative ones. The overall impact index presented positive result (+1,44), which  points to environmental advantage for the innovated subsystem adoption.Keywords: Technological innovation; forest harvesting; environmental impact, indicators.
    Type of Medium: Online Resource
    ISSN: 1982-4688 , 0015-3826
    URL: Issue
    Language: Unknown
    Publisher: Universidade Federal do Parana
    Publication Date: 2011
    detail.hit.zdb_id: 2236558-8
    SSG: 23
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  • 9
    In: Revista Árvore, FapUNIFESP (SciELO), Vol. 28, No. 5 ( 2004-10), p. 681-689
    Abstract: The objective of the present study was to estimate the optimum cutting cycle and harvest stock, where forest annual growing rate equals the annual interest rate offered by the financial market. The research was carried out at the Forest Management Unit (FMU) in Tracajás Farm (02º35'53" S and 47º47'10"W), owned by Nova Era Agroflorestal, in Paragominas, Pará, Brazil. The forest was stratified in three homogeneous areas denominated classes of volumetric stock I, II and III, through multivariate analysis (cluster and discriminant analysis). In each of the stock classes, five 100 x 100 m plots (1 ha) were randomly set up to measure individuals with dbh 〉 15cm. In the center of each 100 x 100 m plot, a 10 x 100 m subplot (0,1 ha) was installed to measure individuals with 5cm 〈 dbh 〈 15 cm. In stock class I, the optimum economic cycles were 13, 12, and 8 years; in stock class II, 18, 12 and 12 years; in stock class III, 22, 12 and 14 years, considering an average annual increment of 3,0 m³/ha/year. Higher remuneration rates for the invested capital were verified for the shorter cutting cycles, regardless of the commercial harvest. Higher annual volume increments resulted in a higher valorization of the forest. Higher harvested volumes implicated in longer cutting cycles for a same forest growing rate. However, within certain limits, higher harvested volumes can biologically result in higher growing rates of the remaining stock. This occurs mostly when silvicultural treatments are applied.
    Type of Medium: Online Resource
    ISSN: 0100-6762
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2004
    detail.hit.zdb_id: 2111203-4
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  • 10
    Online Resource
    Online Resource
    IFSULDEMINAS (Instituto Federal do Sul de Minas) ; 2014
    In:  Revista Agrogeoambiental Vol. 6, No. 3 ( 2014-06-24)
    In: Revista Agrogeoambiental, IFSULDEMINAS (Instituto Federal do Sul de Minas), Vol. 6, No. 3 ( 2014-06-24)
    Type of Medium: Online Resource
    ISSN: 2316-1817 , 1984-428X
    Language: Unknown
    Publisher: IFSULDEMINAS (Instituto Federal do Sul de Minas)
    Publication Date: 2014
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