Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Factors affecting biomass and wood extraction from coppices in Europe: Productivity models and influence of technological changes
Año:2017
Áreas de investigación
  • Monte bajo,
  • Producción de madera,
  • Explotación forestal,
  • Mecanización agraria,
  • Generación a partir de biomasa
Datos
Descripción
Productivity (m3/effective machine hour) in mechanized extraction of firewood, logs, stems or whole trees from traditional coppice forests (Quercus species, beech and chestnut) has been analyzed using data from 128 studies performed between 1973 and 2015 in Italy (99), Spain (24) and the U.K. (5). Significant differences among clearcut and selective felling productivity has not been found. Neither harvesting systems (CTL, WTS, Full Stem) have shown to mark significant differences regarding productivity, possibly because of the wide variety of extraction means and extracted products. However, a common productivity model was fitted for skidding, forwarding and yarding (considered in a wide sense, by very different machine types), by using a nonlinear regression with explanative variables maximum extraction distance (m), machine payload (m3) and felling intensity (m3/ha). The regression equation had an adjusted R2 = 65% and an average absolute value for residuals of 1,2 m3/h. Besides, particularized productivity equations were fitted for skidding and yarding, with lower average absolute value for residuals. Finally, productivity and its relationship with the explanative variables have been compared between studies from the last decade and former ones. A significant increment of productivity for the same values of these factors has been found, probably due to the technological improvements of the mechanized extraction means used in recent times
Internacional
Si
Nombre congreso
125th IUFRO Anniversary Congress
Tipo de participación
960
Lugar del congreso
Freiburg (Alemania)
Revisores
Si
ISBN o ISSN
978-3-902762-88-7
DOI
Fecha inicio congreso
18/09/2017
Fecha fin congreso
22/09/2017
Desde la página
612
Hasta la página
612
Título de las actas
125th IUFRO Anniversary Congress - Book of Abstracts, 2017
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Eduardo Tolosana Esteban (UPM)
  • Autor: Raffaele Spinelli (CNR-IVALSA, Italy)
  • Autor: Emmanuel Cacot (FCBA, France)
  • Autor: Mateusz Mihelic (University of Ljubljana, Slovenia)
  • Autor: Ljupco Nestorovski (University of Skopje, Macedonia)
  • Autor: Piotr Maderski (Poznan University, Poland)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Inventario y Gestión de Recursos Naturales
  • Departamento: Ingeniería y Gestión Forestal y Ambiental
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