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Spremljanje nastajanja ksilema in floema ter kambijeve aktivnosti pri bukvi in smreki v Sloveniji
Čufar, Katarina (Author), Prislan, Peter (Author), Merela, Maks (Author), Krže, Luka (Author), Gričar, Jožica (Author)

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Language:Slovenian
Keywords:bukev, smreka, kambijeva aktivnost, floem, ksilem, navadna bukev (Fagus sylvaticaL.), navadna smreka (Picea abies(L.) Karst.), delovanje kambija, les, floem
Work type:Scientific work (r2)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:BF - Biotechnical Faculty
Year:2015
Publisher:Gozdarski inštitut Slovenije, Založba Silva Slovenica
Number of pages:Str. 53-57
UDC:630*5
ISSN on article:0353-6025
COBISS.SI-ID:2396297 Link is opened in a new window
Views:725
Downloads:357
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Record is a part of a proceedings

Title:Monitoring v gozdarstvu, lesarstvu in papirništvu
COBISS.SI-ID:279589376 This link opens in a new window

Record is a part of a journal

Title:Studia Forestalia Slovenica
Shortened title:Strok. znan. dela - Bioteh. fak., VTOZD gozd.
Publisher:Gozdarski inštitut Slovenije, Silva Slovenica, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0353-6025
COBISS.SI-ID:16579074 This link opens in a new window

Secondary language

Language:English
Abstract:
Temporal dynamics of cambial activity and wood and phloem formation was monitored in European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (L.) Karst.) at the sites Panška reka near Ljubljana (400 m a.s.l.) and on Menina planina (1200 m a.s.l.) from 2006 until 2014. The monitoring is based on histometrical analysis of stem tissues of adult trees including cambial zone, xylem (wood) and phloem. Samples (micro cores) for analyses were taken from trees using a Trephor tool at weekly intervals during the growing seasons. Micro cores were embedded in paraffin in order to cut cross-sections and make permanent slides for observations under the light microscope. We always measured the width or counted the number of cells in the cambium, forming xylem and forming phloem increments. The measurements or counting were performed along three radial files of xylem and phloem growth rings and the cambial zone. We recorded the phases of xylem formation: PC – post-cambial extension growth, SW – deposition of secondary wall and lignification, MT – mature cells. In phloem we separately recorded the formation of early and late phloem. Research on beech was conducted in 2006 and from 2008 until 2014, and on spruce from 2009 until 2014. The monitoring and sampling continues. We present some main findings on the beginning, dynamics and cessation of processes which lead to formation of wood and phloem annual growth layers in beech and spruce from both sites. We show how the processes depend on climatic factors. We also present how the spruce data included in a global data set of conifers helps to predict how tree productivity (and survival) will change due to climatic change. The described processes and their variability are still poorly understood; it is therefore necessary to continue the research presented. The results provide basic knowledge to better understand productivity of trees and forest stands, wood quality, the impact of climate change on tree growth and survival, accumulation of carbon and other processes.


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