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| 21. |  | Olmos, F.; Sosa, M.; Franco, J. Impacto de las actividades humanas en la productividad de pasturas naturales de la región noroeste de Uruguay ln: Reunión del Grupo Técnico Regional del Cono Sur en Mejoramiento y Utilización de los Recursos Forrajeros del Area Tropical y Subtropical, Grupo Campos, 20., 2004, Salto, UY Saldanha, S.; Bemhaja, M.; Moliterno, E.; Olmos, F.; Uriarte, G., ed. Sustentabilidad, desarrollo y conservación de los ecosistemas : memorias. Salto: UdelaR. Regional Norte, 2004. p. 303-304 Universidad de la República (Uruguay). Regional Norte. Facultad de Agronomía; Instituto Nacional de Investigación Agropecuaria, Uruguay (INIA)| Biblioteca(s): INIA La Estanzuela; INIA Tacuarembó. |
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| 23. | | FRANCO, J.; FEED, O.; AGUILAR, I.; GIMENO, D.; NAVAJAS, E. ¿Afectamos la calidad del producto al cruzar? Calidad de la carne: pH y terneza. ln: INIA Tacuarembó. Seminario de actualización técnica, 23 de agosto, 2002. Cruzamientos en bovinos para carnes: Resultados FPTA 083. Tacuarembó, (Uruguay): INIA; Facultad de Agronomía, 2002. p. 63-67 (INIA Serie Actividades de Difusión ; 295) INIA Tacuarembó; Universidad de la República (Uruguay). Facultad de Agronomía; Universidad de la República (Uruguay). Facultad de Química; Frigorífico Tacuarembó; Universidad de la República (Uruguay). Facultad de Veterinaria; Caja...| Biblioteca(s): INIA Tacuarembó. |
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| 26. | | FRANCO, J.; FEED, O.; GIMENO, D.; AGUILAR, I.; AVENDAÑO, S. Como cambia el rendimiento carnicero con los cruzamientos: calidad de la canal. ln: INIA Tacuarembó. Seminario de actualización técnica, 23 de agosto, 2002. Cruzamientos en bovinos para carnes: Resultados FPTA 083. Tacuarembó, (Uruguay): INIA; Facultad de Agronomía, 2002. p. 31-37 (INIA Serie Actividades de Difusión ; 295) INIA Tacuarembó; Universidad de la República (Uruguay). Facultad de Agronomía; Universidad de la República (Uruguay). Facultad de Química; Frigorífico Tacuarembó; Universidad de la República (Uruguay). Facultad de Veterinaria; Caja Notarial| Biblioteca(s): INIA Tacuarembó. |
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| 31. | | BASSO, C.; GRILLE, G.; FRANCO, J.; PASCAL, C. Estudios tendientes a la implementación de un programa de monitoreo y control biológico de la "mosca blanca de los invernáculos" trialeurodes vaporariorum (Westwood) ln: Congreso Nacional de Horticultura, 8.; Seminario Regional de Frutilla, 2001, Salto, Uruguay. Resúmenes. Montevideo (Uruguay): SUH; INIA, 2001. p. 50 Sociedad Uruguaya de Horticultura; Instituto Nacional de Investigación Agropecuaria, Uruguay| Biblioteca(s): INIA Las Brujas; INIA Salto Grande; INIA Tacuarembó; INIA Treinta y Tres. |
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| 35. | | REAL, D.; FRANCO, J.; CROSSA, J.; IBAÑEZ, V. Estudio de caso: metodología empleada por INIA para la evaluación de leguminosas forrajeras para mejoramientos de campo en la región basáltica del Uruguay. ln: CERETTA, S.; ALTIER, N.; ABADIE, T., (Coord). Interacción genotipo x ambiente: avances y aplicaciones para el desarrollo de la genética vegetal. Coloquio. Las Brujas, Canelones (Uruguay): INIA, 2001. p. 12-13| Biblioteca(s): INIA Las Brujas. |
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| 38. | | ERNST, O.; BENTANCUR, O.; SIRI, G.; FRANCO, J.; LAZBAL, E. Nivel de adopción y situación de la siembra directa en establecimientos de producción lechera In: SCARLATO, G.; BUXEDAS, M.; FRANCO, J.; PERNAS, A. Adopción y demandas de investigación y difusión en siembra directa: encuestas a la agricultura y lechería del suroeste de Uruguay. Montevideo (Uruguay): INIA, 2001. p. 107-133 (Serie FPTA-INIA ; 06) Proyecto FPTA 131. Período de ejecución: Jun.2000-Nov.2000| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
31/03/2021 |
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Actualizado : |
04/05/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
HIRIGOYEN, A.; NAVARRO-CERRILLO, R.; BAGNARA, M.; FRANCO, J.; RESQUÍN, F.; RACHID, C. |
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Afiliación : |
ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAFAEL NAVARRO-CERRILLO, Department of Forestry Engineering, Laboratory of Silviculture, Dendrochronology and Climate Change, DendrodatLab- ERSAF, University of Cordoba, Córdoba; MAURIZIO BAGNARA, Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main (Germany); JORGE FRANCO, University of the Republic, Faculty of Agronomy, Paysandú (Uruguay); JOSE FERNANDO RESQUIN PEREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANA CECILIA RACHID CASNATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Modelling taper and stem volume considering stand density in Eucalyptus grandis and Eucalyptus dunnii. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
i Forest - Biogeosciences and Forestry, 2021, Volume 14, Issue 2, Pages 127-136.OPEN ACCESS. DOI: https://doi.org/10.3832/ifor3604-014 |
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DOI : |
10.3832/ifor3604-014 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: Jul 31, 2020 - Accepted: Jan 15, 2021. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIAUruguay) for supporting fieldwork and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz, Demian Gomez, Gonzalo Martinez, Jorge Basso (INIA) and Juan Gabriel Álvarez González (USC). We acknowledge the institutional support of the University of Cordoba ? Campus de Excelencia CEIA3. We also thank the ERSAF group. We thank Dr. David Walker for his revisions of the manuscript versions, and the anonymous referees for their comments and corrections. |
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Contenido : |
Eucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application in countries where fast growing plantations are managed. MenosEucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application ... Presentar Todo |
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Palabras claves : |
COMPATIBLE SYSTEMS; EUCALYPTUS; FOREST AND FORESTRY; INTENSIVE SILVICULTURE; SIMULTANEOUS ESTIMATION; TAPER. |
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Thesagro : |
FORESTACIÓN. |
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Asunto categoría : |
K10 Producción forestal |
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URL : |
https://iforest.sisef.org/pdf/?id=ifor3604-014
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Marc : |
LEADER 03161naa a2200289 a 4500
001 1061913
005 2021-05-04
008 2021 bl uuuu u00u1 u #d
024 7 $a10.3832/ifor3604-014$2DOI
100 1 $aHIRIGOYEN, A.
245 $aModelling taper and stem volume considering stand density in Eucalyptus grandis and Eucalyptus dunnii.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: Jul 31, 2020 - Accepted: Jan 15, 2021. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIAUruguay) for supporting fieldwork and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz, Demian Gomez, Gonzalo Martinez, Jorge Basso (INIA) and Juan Gabriel Álvarez González (USC). We acknowledge the institutional support of the University of Cordoba ? Campus de Excelencia CEIA3. We also thank the ERSAF group. We thank Dr. David Walker for his revisions of the manuscript versions, and the anonymous referees for their comments and corrections.
520 $aEucalyptus grandis and Eucalyptus dunnii are the most planted tree species in Uruguay. Anticipating information about the quantity and quality of wood is important for managing intensive forest plantation. The estimate of merchantable and total wood volume is an essential tool in forest planning and management. The aim of this study was to evaluate four systems of taper and merchantable volume that consisted in a taper, a merchantable volume and a total tree volume function. A modified second-order continuous autoregressive error structure corrected the inherent serial autocorrelation of different observations in one tree. Taper and volume equations were fitted simultaneously after autocorrelation correction by full information maximum likelihood method. The segmented system proposed by Fang et al. (2000) produced the best fit as it explained more than 98% of the taper, merchantable volume and total volume variability for both species. In addition, precision of the segmented system was compared with and without incorporating stand density as a variable. Results of this analysis showed that for E. grandis, the predictive accuracy of the model was improved by including the stand density variable, whereas for E. dunnii this variable was not statistically significant. This modelling framework provides an improvement in taper and tree volume predictions for E. dunnii and E. grandis in Uruguay. The possibilities offered by this methodology could be of interest for its application in countries where fast growing plantations are managed.
650 $aFORESTACIÓN
653 $aCOMPATIBLE SYSTEMS
653 $aEUCALYPTUS
653 $aFOREST AND FORESTRY
653 $aINTENSIVE SILVICULTURE
653 $aSIMULTANEOUS ESTIMATION
653 $aTAPER
700 1 $aNAVARRO-CERRILLO, R.
700 1 $aBAGNARA, M.
700 1 $aFRANCO, J.
700 1 $aRESQUÍN, F.
700 1 $aRACHID, C.
773 $ti Forest - Biogeosciences and Forestry, 2021, Volume 14, Issue 2, Pages 127-136.OPEN ACCESS. DOI: https://doi.org/10.3832/ifor3604-014
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