20.500.12556/RUL-68592 Age, climate and intra-annual density fluctuations in Pinus halepensis in Spain Intra-annual density fluctuations (IADFs) in tree rings of Aleppo pine (Pinus halepensis) are considered to be among the most promising wood anatomical features in dendrochronological studies. They provide environmental information in addition to those obtained from tree-ring widths. We used a network of 35 sites in Spain, ranging from nearly desert to temperate climate. We analysed tree-ring series of 529 trees to study IADF frequencies, and their dependence on climatic factors and cambial age. The results showed that IADF frequency is age dependent, with its maximum at the cambial age of 27 years (evaluated at breast height). The frequencies varied across the network and at different sites we recorded that 0.3% to 33% of the analysed tree rings contained IADFs. They were more frequent where and when the temperatures were higher, summer drought was intense and autumn was the main precipitation season. IADF formation was particularly related to high minimum temperatures and wet conditions in late summer and autumn. These results suggest that IADF formation is not related to stressful conditions during summer but to favourable conditions during autumn. These conditions promote cambial reactivation and consequently formation of wider tree rings. alepski bor struktura lesa branike true false false Rijksherbarium/Hortus botanicus Angleški jezik Neznan jezik Delo ni kategorizirano 2015-07-10 21:08:15 2015-07-10 21:08:15 2022-08-01 12:50:10 0000-00-00 00:00:00 2013 0 0 Str. 459-474 no. 4 Vol. 34 2013 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*1 0928-1541 10.1163/22941932-00000037 2159241 Novak-et-al-2013-IAWA-PIH-IADF.pdf Novak-et-al-2013-IAWA-PIH-IADF.pdf 1 9219FF42FAA8E20CAB5E2F2F213EF8E2 9946b8047c57b8beb639686b722dbbe89778904a76158ece697c13e1cb939817 657799b0-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/d07272b8-63b1-4d4f-bccf-d60b8f313409 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=100795 Biotehniška fakulteta 0 0 0