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97. Stanje in spremembe slovenskih gozdov med letoma 2000 in 2018 : rezultati velikoprostorskega monitoringa gozdov in gozdnih ekosistemovMitja Skudnik, Andrej Grah, Matjaž Guček, David Hladnik, Jernej Jevšenak, Marko Kovač, Gal Kušar, Boštjan Mali, Anže Martin Pintar, Rok Pisek, Špela Planinšek, Aleš Poljanec, Primož Simončič, 2021, professional monograph Keywords: gozdovi, gozdarstvo, monitoring gozdov, Slovenija, stanje gozdov, zaloga lesa, lesna biomasa, odmrla biomasa, ogljik, posek, prirastek lesa, velikoprostorska gozdna inventura Published in DiRROS: 19.10.2021; Views: 3029; Downloads: 1557 Link to full text This document has many files! More... |
98. Platforma za odprte objave znanstvenih del, financiranih v okviru programov Obzorje 2020 in Obzorje Evropa : Open Research Europe - OREMiro Pušnik, Maja Vihar, Mitja Vovk Iskrić, Petra Durini, Uroš Kunaver, 2021, other monographs and other completed works Keywords: odprta znanost, znanstvene publikacije, Obzorje 2020, Obzorje Evropa, načela ORE, stroški objav Published in DiRROS: 29.09.2021; Views: 1442; Downloads: 707 Full text (7,46 MB) This document has many files! More... |
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100. Climatic regulation of leaf and cambial phenology in Quercus pubescens : their interlinkage and impact on xylem and phloem conduitsJožica Gričar, Jernej Jevšenak, Polona Hafner, Peter Prislan, Mitja Ferlan, Martina Lavrič, Dominik Vodnik, Klemen Eler, 2022, original scientific article Abstract: Increased frequency and severity of stressful events affects the growth patterns and functioning of trees which adjust their phenology to given conditions. Here, we analysed environmental effects (temperature, precipitation, VPD and SWC) on the timing of leaf phenology, seasonal stem radial growth patterns, and xylem and phloem anatomy of Quercus pubescens in the sub-Mediterranean in the period 2014%2019, when various adverse weather events occurred, i.e. spring drought in 2015, summer fire in 2016 and summer drought in 2017. Results showed that the timings of leaf and cambium phenology do not occur simultaneously in Q. pubescens, reflecting different environmental and internal constraints. Although year-to-year variability in the timings of leaf and cambial phenology exists, their chronological sequence is fairly fixed. Different effects of weather conditions on different stages of leaf development in spring were observed. Common climatic drivers (i.e., negative effect of hot and dry summers and a positive effect of increasing moisture availability in winter and summer) were found to affect the widths of xylem and phloem increments with more pronounced effect on late formed parts. A legacy effect of the timing of leaf and cambial phenology of the previous growing season on the timing of phenology of the following spring was confirmed. Rarely available phloem data permitted a comprehensive insight into the interlinkage of the timing of cambium and leaf phenology and adjustment strategies of vascular tissues in Mediterranean pubescent oak to various environmental constraints, including frequent extreme events (drought, fire). Our results suggest that predicted changes in autumn/winter and spring climatic conditions for this area could affect the timings of leaf and stem cambial phenology of Q. pubescens in the coming years, which would affect stem xylem and phloem structure and hydraulic properties, and ultimately its performance. Keywords: pubescent oak, leaf development, radial growth, initial earlywood vessel, sieve tube, anatomy, cambial cell production, extreme weather events Published in DiRROS: 06.09.2021; Views: 1067; Downloads: 350 Full text (7,00 MB) This document has many files! More... |