3 documents found, page 1 of 1
Evolution in multi-species high forest stands in Serra da Lousã: diversity anal...
Gonçalves, Ana Cristina; Oliveira, Ângelo Carvalho; Saraiva, SusanaDiversity analysis has an increasing importance in the analysis of forest stands, especially in multi-species ones, as a tool to evaluate stand structure and bring to light the differences in stand development through species interactions. The diversity analysis provides more detail to the traditional stand structure descriptions and enables the approach to stand management more consistent not only with the tim...
The relationship between cork oak growth patterns and soil, slope and drainage ...
Costa, Augusta; Madeira, Manuel; Oliveira, Ângelo CarvalhoThe influence of soil type, slope and drainage on tree growth patterns (density, tree size, crown canopy cover and cork yield) was assessed in a cork oak montado, located in Central-western Portugal, based on a GIS approach followed by field survey. Five soil groups, that is, Arenosols, Regosols, Podzols, Luvisols and Gleysols, combined in three slope classes (flat, undulating and steep) under two different hyd...
Thinning strategies for maritime pine (Pinus pinaster Ait.) in Portugal
Oliveira, Ângelo CarvalhoTo establish a thinning strategy for maritime pine stands (Pinus pinaster Ait) basal area, Wilson relative spacing index (WILSON, 1946), Reineke spacing density index (REINEKE, 1933) and Curtis relative density (CURTIS, 1982) are compared. Reineke’s index was chosen to elaborate a field guide for thinnings in maritime pine stands