114 resultados para sem??ntica


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Manual realizado con objeto de ser utilizado por los analistas formados espec??ficamente mediante un seminario para aplicar la metodolog??a que se expone. Se trata de una ayuda que sirve como gu??a, ya que se??ala los objetivos perseguidos y el modelo de actuaci??n, y como fuente de recursos porque recoge herramientas a utilizar. Est?? dividido en cuatro partes: contextualizaci??n del proyecto; aportaciones te??ricas para entender el enfoque que se pretende seguir y el modelo de intervenci??n; definici??n de rol, funci??n y habilidades del analista de necesidades; herramientas metodol??gicas elaboradas en el marco del proyecto Atl??ntica. Seg??n los autores es funci??n del Seminario de Formaci??n inicial y del training posterior tanto el operativizar los conocimientos y recursos ofrecidos como el experimentar, enriquecerlos y adaptarlos.

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Resumen tomado de la publicaci??n

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Resumen basado en el de la publicaci??n

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Resumen basado en el de la publicaci??n

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This study aimed at characterizing the potential for natural regeneration of native vegetation in the under-story of an earlier Eucalyptus saligna Smith production stand. The study was carried out at the Parque das Neblinas, Bertioga municipality, SP, in a 45 ha third rotation stand; which had been abandoned 15 years ago for natural regeneration to occur. The sampling was done in 24 plots of 20 × 40 m. The sampled area was of 19,200 m2, with inventory made of 100% of the eucalyptus trees. All regeneration trees with a height ≥ 1.30 m and DBH ≥ 5.0 cm were measured, as well as adult individuals with DBH ≥ 5.0 cm; surveyed in two size classes. 1,417 individuals of E. saligna were measured, with a density of 738,02 individuals/ha and a basal area of 22.69 m2/ha. Among 2,763 natural regeneration individuals, 111 species belonged to 66 genera and 34 botanical families. The species represented 43.7% of the tree richness of neighboring native forest fragments. The total estimated density and the basal area were respectively 1,052.6 individuals/ha and 6.4 m2/ha of autochthonous trees with DBH ≥ 5.0 cm (Class 1); while for regeneration there were 3,864.58 individuals/ha, and 2.76 m2/ha of individuals with a height ≥ 1.30 m and DBH < 5.0 cm (Class 2). Shannon diversity (H') was 2.83 and 3.68, respectively, for Classes 1 and 2, and the corrected species richness for a 1000-individual sample (R1000) were 75.6 and 87.29 (Fisher's a index) for the same classes. The majority of the species (34.84%) was typical from the understory of wet tropical forest and had zoochoric fruit dispersal (67.57%). The results indicate that, under these conditions, a eucalyptus forest is able to provide adequate regeneration niches for native vegetation, and may represent a sink habitat for local populations.

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Disponível também na Internet.

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Mode of access: Internet.

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Dedication dated 1911.

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Mode of access: Internet.