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Stable isotope composition in tree rings of Fagus sylvatica L. saplings reflects environmental variation induced by silviculture and microsite factors [Elektronski vir]Kermavnar, Janez ; Levanič, Tom ; Kutnar, LadoNatural regeneration of tree species is sensitive to silvicultural interventions. This study aimed to investigate the effects of different cutting intensities and local topographic and soil ... conditions on the composition of stable carbon (δ13C) and oxygen (δ18O) isotopes in wood of young beech (Fagus sylvatica L.) trees. Beech saplings in the regeneration layer were sampled in summer 2018 at three study sites in Dinaric fir-beech forests in the karst area of Slovenia. Three different cutting intensities were performed in 2012: i) no cutting (control), ii) 50% cutting of the stand’s growing stock creating thinned stands, and iii) 100% cutting of the stand’s growing stock creating 0.4 ha canopy gaps. We show that δ13C increased along the gradient of cutting intensity. On average, δ13C values in the tree rings were ∼ 2‰ increased in trees from canopy gaps than from closed control stands. Furthermore, δ13C was higher on south-facing slopes characterized by higher air temperatures and lower relative humidity compared to north-facing slopes of karst sinkholes. Additionally, the results suggest a dependence of δ18O on interannual and cross-site climatic variations, particularly in the case of summer precipitation amount. δ18O also responded to soil depth, with beech individuals exhibiting lower values on deeper soils, presumably characterized by higher soil water availability compared to shallow soils. The results are discussed in the context of future climate change, as many beech-dominated forests on karst terrain in the Dinaric Mountains are particularly affected by climate warming and drying due to prolonged and reoccurring summer droughts, intensified large-scale disturbances, and often shallow soils with low water storage capacity.Source: Forest Ecology and Management [Elektronski vir]. - ISSN 1872-7042 (Vol. 537, article no. 120949, 2023, 14 str.)Type of material - e-articlePublish date - 2023Language - englishCOBISS.SI-ID - 147879171
Author
Kermavnar, Janez |
Levanič, Tom |
Kutnar, Lado
Topics
stabilni izotopi ogljika |
stabilni izotopi kisika |
sekanje dreves |
mikroklima |
sušni stres |
Dinarski jelovo-bukovi gozdovi |
stable carbon isotopes |
stable oxygen isotopes |
tree cutting |
microclimate |
drought stress |
dinaric fir-beech forests
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Author | Kermavnar, Janez ; Levanič, Tom ; Kutnar, Lado |
Title | Stable isotope composition in tree rings of Fagus sylvatica L. saplings reflects environmental variation induced by silviculture and microsite factors [Elektronski vir] |
Publication date | 2023-03-18 |
COBISS.SI-ID | 147879171 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Spremembe gozdne vegetacije zaradi vplivov globalnih in lokalnih okoljskih sprememb v daljšem časovnem obdobju | Z4-4543 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gozdna biologija, ekologija in tehnologija | P4-0107-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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European LIFE ManFor C. BD Project | LIFE ManFor C. BD | LIFE09 ENV/IT/000078 |
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APC – Article Processing Charge | 3855.20 € |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kermavnar, Janez | 39085 |
Levanič, Tom | 11595 |
Kutnar, Lado | 15108 |
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