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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
04/10/2023 |
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Data da última atualização: |
15/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MULLER, M. D.; BORGES, C. A. V.; RESENDE, L. de O.; MARTINS, C. E. |
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Afiliação: |
MARCELO DIAS MULLER, CNPGL; CRISTIANO AMANCIO VIEIRA BORGES, CNPGL; LEONARDO DE OLIVEIRA RESENDE, ESCAS-ESCOLA SUPERIOR DE CONSERVAÇÃO AMBIENTAL E SUSTENTABILIDADE; CARLOS EUGENIO MARTINS, CNPGL. |
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Título: |
Estimating volume of eucalyptus trees for small-scale silvopastoral systems: do we really need height for accurate estimates? |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
European Journal of Forest Research, v. 143, p. 81-94, 2024. |
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DOI: |
https://doi.org/10.1007/s10342-023-01608-2 |
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Idioma: |
Inglês |
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Conteúdo: |
Double-entry volume equations require measurement of diameter and height variables, making forest inventory more expensive. This can be limiting for small farms. Then the single-entry volume equations, where diameter at breast height (DBH) is the independent variable, are a cost-efective option for these landowners because they optimize data collection due to the use of one readily available variable (the DBH) and require few resources. The objective of this study was to evaluate the efective contribution of the height in the estimation of eucalypt trees volume for small-scale silvopastoral systems. For this, four single-entry and fve double-entry volumetric models were ftted to the data for six diferent silvopastoral systems in Coronel Pacheco, Minas Gerais State, Brazil. The six strata consisted of combinations of three diferent Eucalyptus genetic material and three silvopastoral systems, and the models were compared aiming the selection of the best of each type in each system. Double-entry models, specifcally logarithmic Spurr and logarithmic Schumacher?Hall, ftted better than single-entry ones for all but one of the strata, where they were overcome by the Husch?s model. Although the superiority of the formers can have been easily verifed by diferent and complementary statistics, we found that the volume estimates provided by the best double-entry and the best single-entry model of each stratum difered by a quantity that can be considered irrisory, from both practical and monetary points of view. On a per tree basis, the sum of the diferences for each stratum, in absolute value, did not surpass 0.051 m3 , or only US$ 0.25, considering a market value of US$ 4.90/m3 . And when simulating a real scenario of batch sales for each stratum, by simple extrapolation of the mean volume and considering their efective tree stand, such diferences did not exceed±0.25 m3 /ha, or±US$ 1.20/ha. Following the same logic, even when comparing the best doubleentry model to the worst single-entry one for each stratum, we still observed only negligible diferences. Considering the sampled trees, these diferences amounted to a balance per stratum of only?0.015 to+0.032 m3 (or between?US$ 0.07 and+US$ 0.16). When extrapolated to the total trees in each stratum, the overall balance did not exceed an absolute value of 0.283 m3 (or US$1.39). These results suggest that the contribution of height may be negligible in estimating the volume of eucalyptus trees for small silvopastoral systems. Consequently, smallholders may not beneft from measuring tree heights. Rather, they may save money by foregoing a comprehensive forest inventory and instead using single-entry models, such as the Husch model, to estimate the wood volume of their forest stands. Another highlight or reinforcement of this work is that the use of the Furnival index was crucial for a reliable selection of the best models, once it allows for comparisons among models both with and without a log transformation of the volume. MenosDouble-entry volume equations require measurement of diameter and height variables, making forest inventory more expensive. This can be limiting for small farms. Then the single-entry volume equations, where diameter at breast height (DBH) is the independent variable, are a cost-efective option for these landowners because they optimize data collection due to the use of one readily available variable (the DBH) and require few resources. The objective of this study was to evaluate the efective contribution of the height in the estimation of eucalypt trees volume for small-scale silvopastoral systems. For this, four single-entry and fve double-entry volumetric models were ftted to the data for six diferent silvopastoral systems in Coronel Pacheco, Minas Gerais State, Brazil. The six strata consisted of combinations of three diferent Eucalyptus genetic material and three silvopastoral systems, and the models were compared aiming the selection of the best of each type in each system. Double-entry models, specifcally logarithmic Spurr and logarithmic Schumacher?Hall, ftted better than single-entry ones for all but one of the strata, where they were overcome by the Husch?s model. Although the superiority of the formers can have been easily verifed by diferent and complementary statistics, we found that the volume estimates provided by the best double-entry and the best single-entry model of each stratum difered by a quantity that can be considered irrisory, from both practical and... Mostrar Tudo |
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Palavras-Chave: |
Agrosilvopastoral systems; Crop-livestock-forestry systems; Sistema agrossilvipastoril; Sustainable farming systems. |
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Thesagro: |
Sistema de Cultivo. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 03820naa a2200229 a 4500
001 2157074
005 2024-02-15
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10342-023-01608-2$2DOI
100 1 $aMULLER, M. D.
245 $aEstimating volume of eucalyptus trees for small-scale silvopastoral systems$bdo we really need height for accurate estimates?$h[electronic resource]
260 $c2024
520 $aDouble-entry volume equations require measurement of diameter and height variables, making forest inventory more expensive. This can be limiting for small farms. Then the single-entry volume equations, where diameter at breast height (DBH) is the independent variable, are a cost-efective option for these landowners because they optimize data collection due to the use of one readily available variable (the DBH) and require few resources. The objective of this study was to evaluate the efective contribution of the height in the estimation of eucalypt trees volume for small-scale silvopastoral systems. For this, four single-entry and fve double-entry volumetric models were ftted to the data for six diferent silvopastoral systems in Coronel Pacheco, Minas Gerais State, Brazil. The six strata consisted of combinations of three diferent Eucalyptus genetic material and three silvopastoral systems, and the models were compared aiming the selection of the best of each type in each system. Double-entry models, specifcally logarithmic Spurr and logarithmic Schumacher?Hall, ftted better than single-entry ones for all but one of the strata, where they were overcome by the Husch?s model. Although the superiority of the formers can have been easily verifed by diferent and complementary statistics, we found that the volume estimates provided by the best double-entry and the best single-entry model of each stratum difered by a quantity that can be considered irrisory, from both practical and monetary points of view. On a per tree basis, the sum of the diferences for each stratum, in absolute value, did not surpass 0.051 m3 , or only US$ 0.25, considering a market value of US$ 4.90/m3 . And when simulating a real scenario of batch sales for each stratum, by simple extrapolation of the mean volume and considering their efective tree stand, such diferences did not exceed±0.25 m3 /ha, or±US$ 1.20/ha. Following the same logic, even when comparing the best doubleentry model to the worst single-entry one for each stratum, we still observed only negligible diferences. Considering the sampled trees, these diferences amounted to a balance per stratum of only?0.015 to+0.032 m3 (or between?US$ 0.07 and+US$ 0.16). When extrapolated to the total trees in each stratum, the overall balance did not exceed an absolute value of 0.283 m3 (or US$1.39). These results suggest that the contribution of height may be negligible in estimating the volume of eucalyptus trees for small silvopastoral systems. Consequently, smallholders may not beneft from measuring tree heights. Rather, they may save money by foregoing a comprehensive forest inventory and instead using single-entry models, such as the Husch model, to estimate the wood volume of their forest stands. Another highlight or reinforcement of this work is that the use of the Furnival index was crucial for a reliable selection of the best models, once it allows for comparisons among models both with and without a log transformation of the volume.
650 $aSistema de Cultivo
653 $aAgrosilvopastoral systems
653 $aCrop-livestock-forestry systems
653 $aSistema agrossilvipastoril
653 $aSustainable farming systems
700 1 $aBORGES, C. A. V.
700 1 $aRESENDE, L. de O.
700 1 $aMARTINS, C. E.
773 $tEuropean Journal of Forest Research$gv. 143, p. 81-94, 2024.
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Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 357 | |
| 121. |  | PACIULLO, D. S. C.; FERNANDES, P. B.; LIMA, A. M.; CASTRO, C. R. T. de; MULLER, M. D.; MIRANDA E SILVA, W. C.; MULLER, M. D.; SOUZA, V. F. DE. Biomassa aérea e de raízes em Brachiaria decumbens, cultivada em sistema silvipastoril. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringá: SBZ, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 124. | | HAR, L. A.; ANDREATTA, T.; SUÑÉ, R. W.; DALTRO, D. dos S.; FERNANDES, T. A.; MÜLLER, M. Aspectos relacionados à mortalidade de bezerros em dois municípios da região da Campanha do estado do Rio Grande do Sul. In: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 3., 2011. Uruguaiana. Conhecer para acontecer: para quê? para quem? para onde?: anais. Uruguaiana: Unipampa, 2011. 1 CD-ROM. SIEPE.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 126. | | CARVALHO, G. R.; OLIVEIRA, C.; ZOCCAL, R.; STOCK, L. A.; CARNEIRO, A. V.; FERNANDES, E. N.; MULLER, M. D. Agroenergia e a produção e leite: uma análise conjuntural. In: REUNIÓN ASOCIACÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 20., REUNIÓN ASOCIACIÓN PERUANA DE PRODUCCIÓN ANIMAL, 30., CONGRESO INTERNACIONAL DE GANADERIA DOBLE PROPOSITO, 5., 2007, Cuzco. Anais... Cuzco: ALPA/APPA, 2007. 1 CD.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 127. | | CARVALHO, G. R.; OLIVEIRA, C.; ZOCCAL, R.; STOCK, L. A.; CARNEIRO, A. V.; FERNANDES, E. N.; MULLER, M. D. Agroenergia e a produção e leite: uma análise conjuntural. In: REUNIÓN ASOCIACÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 20.; REUNIÓN ASOCIACIÓN PERUANA DE PRODUCCIÓN ANIMAL, 30.; CONGRESO INTERNACIONAL DE GANADERIA DOBLE PROPOSITO, 5., 2007, Cuzco. Resumenes... Cuzco: ALPA/APPA, 2007.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 129. | | FOLONI, J. S. S.; BASSOI, M. C.; MOREIRA, A.; MULLER, M. M. L.; ANTONIO COSTA(3) IAPAR. Adubação nitrogenada totalmente na semeadura do trigo. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa: SBCS, 2012. 4 p. Trab. 2069. 1 CD-ROM. Fertbio.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 130. | | SUÑÉ, R. W.; MÜLLER, M.; MIELKE, L. F.; D'AVILA, P. P.; DALTRO, D. dos S.; MACIEL, A. L. G. Comportamento ingestivo de bezerros holandeses em diferentes instalações. In: REUNIÓN DE LA ASOCIACIÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 22., 2011, Montevideo, Uruguay. Memorias... Montevideo: Asociación Uruguaya de Producción Animal, 2011. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 131. | | SUÑÉ, R. W.; MÜLLER, M.; DALTRO, D. dos SANTOS; MIELKE, L.; ANDREATTA, T.; D'AVILA, P. P.; FARION, L. S. Comportamento de ordenha de vacas Holandesas suplementadas com diferentes níveis de concentrado em pastagem de aveia e azevém. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 21., 2011, Maceió. Inovações tecnológicas e mercado consumidor: anais. Maceió: Associação Brasileira de Zootecnistas, 2011. 1 CD-ROM. ZOOTEC 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 132. | | SUÑÉ, R. W.; MÜLLER, M.; DALTRO, D. dos S.; MIELKE, L.; ANDREATTA, T.; D'AVILA, P. P.; FARION, L. S. Comportamento de ordenha de vacas Jersey suplementadas com dois níveis de concentrado em pastagem de aveia e azevém. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 21., 2011, Maceió. Inovações tecnológicas e mercado consumidor: anais. Maceió: Associação Brasileira de Zootecnistas, 2011. 1 CD-ROM. ZOOTEC 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 133. | | PEZZOPANE, J. R. M.; BOSI, C.; BERNARDI, A. C. de C.; MULLER, M. D.; OLIVEIRA, P. P. A. Biomassa e estoque de carbono em árvores de eucalipto em sistemas integrados de produção pecuária. In: SOTTA, E. D.; SAMPAIO, F. G.; COSTA, M. de S. N. (org.). Coletânea de fatores de emissão e remoção de gases de efeito estufa da pecuária brasileira. Brasília, DF: MAPA: SENAR, 2020. p.112-113.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
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| 134. | | PEZZOPANE, J. R. M.; BOSI, C.; BERNARDI, A. C. de C.; MULLER, M. D.; OLIVEIRA, P. P. A. Biomass and carbon pools of Eucalyptus trees in integrated crop-livestock-forest systems. In: EUCALYPTUS, 2018, Montpellier, France. Managing Eucalyptus plantations under global changes: abstracts book. Montpellier, France: Cirad, 2018. p. 37| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 136. | | PETIZ, A. L.; MÜLLER, M.; ANDREATTA, T.; SUÑÉ, R. W.; BUENO, A. L. B.; DALTRO, D. dos S. Efeito de diferentes ordenhadores sobre o comportamento de ordenha de vacas Jersey no estado do Rio Grande do Sul. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 21., 2011, Maceió. Inovações tecnológicas e mercado consumidor: anais. Maceió: Associação Brasileira de Zootecnistas, 2011. 1 CD-ROM. ZOOTEC 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 137. | | GAMA-RODRIGUES, E. F. da; GAMA-RODRIGUES, A. C. da; MACHADO, R. C. R.; MÜLLER, M. W. Carbono, Nitrogênio e atividade da biomassa microbiana em solos sob diferentes sistemas de cutivo de cacau no Sul da Bahia. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 5., 2004, Curitiba. SAFs: desenvolvimento com proteção ambiental: anais. Colombo: Embrapa Florestas, 2004. p.163-165. (Embrapa Florestas. Documentos, 98).| Biblioteca(s): Embrapa Florestas. |
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| 138. | | CASTRO, C. R. T. de; PACIULLO, D. S. C.; MULLER, M. D.; GOMIDE, C. A. de M.; XAVIER, D. F. Presencia natural de arboles en los pastos de la Zona da Mata de Minas Gerais, Brasil y el comportamiento de ganaderos frente a su incidencia. In: CONGRESO FORESTAL DE CUBA, 5.; SIMPOSIO INTERNACIONAL SOBRE SISTEMAS AGROFORESTALES, 6.; ENCUENTRO INTERNACIONAL DE JOVENES INVESTIGADORES, 5., 2011, Havana, Cuba. Annales... Havana: Instituto de Investigaciones Forestais, 2011. 6 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 357 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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