Juvenile-mature wood evaluation along the bole considering the influence of silvicultural treatments

Wood used for structural purposes has increased in the last decade Spain. However, as raw material, wood needs to comply with requirements that are not always present. Knowledge about quality from trees on stand is essential providing feedback forest managers and taking required actions obtain suitable silviculture treatments. Two of main species construction Spain, Pinus nigra sylvestris, have been studied order determine amount juvenile wood, which identified a harmful characteristic its decrease physical-mechanical properties these species. Being relevant best timber part along bole where logs obtained, distribution at different heights effect several silvicultural treatments had formation considered. The juvenile-mature boundary (transition year) was calculated through segmented linear mixed models employing variables annual latewood density, obtained micro X-ray densitometry, practices, drought index. results show how mature distributed proportion wood. Its reduction according thinning pruning practices presented.