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Descripción
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| Coarse and fine woody debris generated during logging operations and silvicultural treatments usually have some kind of processing in traditional silviculture. Debris treatments look for reducing the risk of fire or plagues, facilitating the movement of people and machines, decreasing landscape impact, etc. Timber harvesting residues have typically been burned in traditional silviculture in Spain. Still in use, it is being progressively replaced with other methods, like chopping. In this work we analyze the case of the private state 'Cabeza de Hierro' (Rascafría, Madrid, Spain). Natural vegetation is a forest of Scots pine in an uneven-aged structure in most of its management units, located in the upper valley of Lozoya river, in a elevation range between 1260 and 2000 m.a.s.l at the Spanish Central Range. The private ownership has been harvesting pine timber since acquisition in 1840, under technical management plans since 1957. The soils are acidic and derived of gneisses alteration. In the past and almost exclusively, logging residues has been removed by burning in small bonfires at the same forest. The objective of this work is to test the effect of low intensity burns in bonfires at forest on the natural regeneration of Scots pinewood. Old bonfires were located in the forest, ranging from 1 to 6 years since residues were burnt, with five replications of each 'age'. Around each bonfire, four side control plots (1 m2 each) were located and studied. Several variables were registered and analyzed: regeneration density, physiographic parameters, direction and distance to the nearest mature tree, amount of coal peaces, litter fall, bush and herbaceous species were estimated in bonfires and control plots. Density regeneration is significantly higher inside old bonfires than in control plots outside the burns. Influence of the environmental variables on regeneration is also discussed. | |
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Internacional
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Si |
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Nombre congreso
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IUFRO Joint Internacional Meeting: Global Change and Mediterranean Pines: Alternatives for Management |
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Tipo de participación
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960 |
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Lugar del congreso
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Palencia |
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Revisores
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Si |
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ISBN o ISSN
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000-00-0000-000-0 |
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DOI
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Fecha inicio congreso
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10/02/2010 |
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Fecha fin congreso
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12/02/2010 |
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Desde la página
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74 |
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Hasta la página
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74 |
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Título de las actas
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Abstracts IUFRO Joint Internacional Meeting: Global Change and Mediterranean Pines: Alternatives for Management |