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Advisor(s)
Abstract(s)
In a chestnut high forest converted into coppice, 4 permanent plots were established
in 1994. These plots are being managed according to the silvicultural models
proposed by Bourgeois (1992) and adapted to our conditions. The treatments are: T1
= Model 1: small dimensions; T2 = Model 2: medium dimensions; T3 = Model 3:
Large dimensions; Control = coppice without intervention. In 2003, a 2nd thinning was
applied in order to select the more straight and cylindrical shoots without defects. The
principal dendrometrical parameters (such as: number of stumps per hectare;
number of shoots per hectare; mean total height of the shoots; dominant height of the
shoots; mean DBH of the shoots; dominant diameter of the shoots; basal area of the
shoots per hectare and basal area of the shoots) were measured, before and after
thinning. Results show that T3 presents greater vigour and the highest dominant
height. Concerning dominant height, T2 was exceeded by T1, because it has a higher
number of shoots and, consequently, strong competition in relation to available site
resources. It was expected a T2 with dominant height superior to T1, but we believe
that T2 will recover its dominant height leadership with the heavy thinning applied in
the last intervention (about 75% reduction in the number of shoots). The control
follows the other plots dominant height growth pattern, although presents inferior
mean basal area per shoot in comparison to the other treatments.
Description
Keywords
Castanea sativa Mill. Coppice Silvicultural models Management
Citation
Patrício, Maria do Sameiro; Monteiro, Maria do Loreto; Nunes, Luís; Mesquita, Susana; Beito, Sónia; Casado, José; Guerra, Hélia (2005). Management models evaluation of a castanea sativa coppice in the Northeast of Portugal. Acta Horticulturae. ISSN 0567-7572. 693, p. 721-731
Publisher
International Society of Horticultural Science (ISHS)