Digital repository of Slovenian research organisations

Show document
A+ | A- | SLO | ENG

Title:Climatic regulation of leaf and cambial phenology in Quercus pubescens : their interlinkage and impact on xylem and phloem conduits
Authors:Gričar, Jožica (Author)
Jevšenak, Jernej (Author)
Hafner, Polona (Author)
Prislan, Peter (Author)
Ferlan, Mitja (Author)
Lavrič, Martina (Author)
Vodnik, Dominik (Author)
Eler, Klemen (Author)
Language:English
Tipology:1.01 - Original Scientific Article
Organisation:Logo SciVie - Slovenian Forestry Institute
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
Year of publishing:2022
COBISS_ID:75293699 Link is opened in a new window
UDC:630*81
ISSN on article:0048-9697
DOI:10.1016/j.scitotenv.2021.149968 Link is opened in a new window
Note:Soavtorji: Jernej Jevšenak, Polona Hafner, Peter Prislan, Mitja Ferlan, Martina Lavrič, Dominik Vodnik, Klemen Eler;
Views:121
Downloads:27
Files:.pdf PDF - Presentation file. This file will be accessible after 28.08.2023.
URL URL - Source URL, visit https://doi.org/10.1016/j.scitotenv.2021.149968
 
Journal:Sci. total environ.
Elsevier
 
Metadata:XML RDF-CHPDL DC-XML DC-RDF
:
  
Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.


Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:Z4-8217
Name:Identifikacija drevesnega koreninskega sistema in spremljanje zadrževanja vode v tleh z označevalnimi poizkusi

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J4-7203
Name:Kratkoročni in dolgoročni odzivi hrastov v submediteranu na ekstremne vremenske dogodke s pomočjo drevesno-anatomskih analiz in eko-fizioloških meritev

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J4-9297
Name:Skladnost in časovno ujemanje med ogljikom vezanim v lesno biomaso in "eddy covariance" oceno neto ekosistemske produkcije za presvetljen gozdnat ekosistem" oceno neto ekosistemske produkcije za presvetljen gozdnat ekosistem

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J4-2540
Name:Umiranje dreves v submediteranu: zaporedje procesov, njihova medsebojna povezanost in prihodnja perspektiva

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P4-0107
Name:Gozdna biologija, ekologija in tehnologija

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P4-0085
Name:Agroekosistemi

Back