This chapter presents a preliminary characterization of Quercus pyrenaica Willd. open woodlands in Madrid province. From data from the second and third National Forest Inventory we compare main stand variables (N, Dg, Hm, Ho, G, V and Hart-Becking index) at the two inventories for open woodlands...

Bearing in mind the importance of pruning as a silvicultural treatment in cork-oak (Quercus suber L.) open woodland, an experiment was designed to assess the effect of pruning on acorn yield. This work was carried out by comparing annual acorn production from 40 pruned trees and 40 unpruned ones...

The spatial structure of the mean cone production from even-aged stone pine (Pinus pinea) stands of the Northern Plateau of Spain has been studied. Available data consisted of 123 five-tree plots, where cone crop was collected during a 5-year period (1996-2000). The experimental variogram for the...