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Title:Vpliv vremenskih razmer na lesno-anatomske značilnosti pri puhastem hrastu s Podgorskega Krasa
Authors:ID Lavrič, Martina (Author)
ID Gričar, Jožica (Author)
Files:.pdf PDF - Presentation file, download (913,15 KB)
MD5: 8DADB3074C450798CC380FCB93A5C128
PID: 20.500.12556/dirros/66fab97a-b593-4245-8358-a23bd401675b
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo ZGDS - Zveza gozdarskih društev Slovenije
Abstract:V okviru raziskave smo se osredotočili na vpliv vremenskih dejavnikov na lesno-anatomske značilnosti puhastega hrasta (Quercus pubescens Willd.), ki je ena od dominantnih domorodnih drevesnih vrst v slovenskem Submediteranu. V obdobju 2009%2014 smo raziskali povezave med različnimi lesno-anatomskimi parametri (končna širina branike, širina kasnega in ranega lesa ter premer, površina in število trahej ranega lesa) in vremenskimi dejavniki (padavine, temperatura in vsebnost vode v tleh). Zanimal nas je tudi potencial izbranih lesno-anatomskih parametrov ter komplementarnost oziroma enakovrednost le-teh za proučevanje podnebja na Podgorskem krasu. Preliminarni rezultati so pokazali, da so bili anatomski parametri povezani predvsem s temperaturo. Širina ranega lesa in površina trahej ranega lesa sta bili pozitivno povezani z maksimalno temperaturo, število trahej v ranem lesu in širina lesne branike pa pozitivno povezana s povprečno temperaturo v obdobju pred in na začetku kambijeve aktivnosti (januar%maj). To nakazuje, da vremenske razmere v navedenem obdobju pomembno vplivajo na hidravlične lastnosti ksilema. Pri širini kasnega lesa smo ugotovili največ povezav s temperaturo v poletnih mesecih, pri trahejah ranega lesa pa s temperaturo v obdobju januar%april. Vpliva padavin na razvoj ksilemske branike z našimi rezultati nismo potrdili. Ugotovili smo, da so širina kasnega lesa in značilnosti trahej ranega lesa primerni lesno-anatomski parametri, ki vsebujejo komplementarne informacije o vplivu vremenskih razmer na debelinsko rast puhastega hrasta. Poudariti je treba, da so bile naše analize opravljene v razmeroma kratkem časovnem obdobju in da bi bile za natančnejše rastno-podnebne zveze potrebne dodatne dolgoletne študije.
Keywords:Quercus pubescens, kras, vreme, anatomija lesa, lesna branika, kasni les, rani les, traheja
Year of publishing:2016
Number of pages:str. 410-420
Numbering:Letn. 74, št. 10
PID:20.500.12556/DiRROS-6298 New window
UDC:630*11:630*81(045)=163.6
ISSN on article:0017-2723
COBISS.SI-ID:4637094 New window
Publication date in DiRROS:06.03.2017
Views:5956
Downloads:953
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Record is a part of a journal

Title:Gozdarski vestnik : slovenska strokovna revija za gozdarstvo
Shortened title:Gozd. vestn.
Publisher:Zveza gozdarskih društev Slovenije
ISSN:0017-2723
COBISS.SI-ID:3736834 New window

Licences

License:CC BY-ND 2.5 SI, Creative Commons Attribution-NoDerivs 2.5 Slovenia
Link:https://creativecommons.org/licenses/by-nd/2.5/si/deed.en
Description:You are free to reproduce and redistribute the material in any medium or format for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. If you remix, transform, or build upon the material, you may not distribute the modified material. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Licensing start date:06.03.2017

Secondary language

Language:English
Title:Impact of weather conditions on wood-anatomical features in Pubescent Oak at Podgorski Kras
Abstract:Our research focused on the influence of climatic factors on wood-anatomical features of pubescent oak (Quercus pubescens Willd.), which is one of the dominant native tree species in Slovenian sub-Mediterranean climate. In the period 2009%2014 we studied relationship between various wood-anatomical parameters (xylem ring width, early- and latewood widths, diameter, area and number of earlywood vessels) and climatic factors (precipitation, temperature and soil water content). In addition, we checked whether the studied wood-anatomical parameters contained complementarity or redundant climatic information in pubescent oak at Podgorski Kras. Preliminary results showed that studied parameters were mainly related to temperature. In period before and at the onset of cambial activity (i.e. January%May), earlywood width and earlywood vessel area were positively related to the maximum temperature, whereas number of earlywood vessels and xylem ring width were positively related to the mean temperature. This indicates that weather conditions in this period have a significant impact on hydraulic properties of xylem. For latewood width, we found significant correlation with temperature in summer months and for earlywood vessels with the temperature in period January%April. We could not confirm the impact of precipitation on xylem ring development. We concluded that latewood width and earlywood vessel characteristics are promising wood-anatomical parameters containing complementary information on the impact of weather conditions on radial growth of pubescent oak. However, it is necessary to emphasize that our analysis has been performed in a relatively short time period, therefore long-term data are needed for more reliable assessment of the applicability of the selected wood-anatomical parameters to dendroclimatological studies.
Keywords:Quercus pubescens, Karst, weather, wood anatomy, xylem ring, earlywood, latewood, vessel


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