Dendro-climatic analysis of annual rings in Austrian pine (Pinus nigra Arnold)
Mikova, A.(Technical University in Zvolen, (Slovak Republic). Faculty of Forestry | Stastny, P.Slovak Hydrometeorological Institute, Bratislava (Slovak Republic) | Krekulova, E.Slovak Academy of Sciences, Nitra (Slovak Republic). Institute of Forest Ecology)
The aim of our work was dendroclimatic analysis of tree-ring indexes in Austrian pine, detailed description of dependence of radial increment on climatic factors (mean monthly temperature and monthly precipitation total). Our basic empiric material was a set of increment cores sampled from Austrian pine trees in November 2003. We obtained tree ring curves of Austrian pine, covering periods of 79-96 years. Dendroclimatic analysis revealed the positive influence of temperature at the beginning of vegetation period and also positive influence of temperature in the vegetation period. Mean monthly temperatures in July and September of the preceding year and April, July and August of the current year have negative influence on increment creation. The precipitation at the beginning of diameter growth (March, April, May) and at the end of diameter growth in the current year (June, July, August) has positive influence on the width of annual rings.
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