Structure, quality, production, LAI and dendrochronology of 100 years old Austrian pine (Pinus nigra ARNOLD) stand
Tokar, F.(Slovenska Akademia Vied, Nitra (Slovak Republic). Ustav Ekologie Lesa)E-mail:[email protected] | Krekulova, E.
The paper evaluates the growth, structure, production, quality, leaf area index and dendrochronology of 100 years old Austrian pine (Pinus nigra) monoculture situated in the forest type group Fageto-Quercetum in the locality Horne Lefantovce (Slovak Republic). Codominant trees, trees with stem of high quality, with medium-sized crown, medium dense and straight crown are the most abundant in the stand. The tree number in the stand is 1,024 trees/ha, basal area 51.75 square m/ha, growing stock 571.56 cubic m/ha, aboveground biomass stock 348.76 t/ha and leaf area index 21.85 ha/ha. Dendrochronological analyses examined the response in individual sample trees. Marked maximum values of annual ring width were found in the years 1919, 1923, 1926, 1930, 1936, 1937, 1941, 1948, 1951, 1955, 1959, 1966, 1972, 1975, 1980, 1985, 1997. Beginning in the year 1993, dry Austrian pine trees occurred in the stand as a result of the fungal infection by Sphaeropsis sapinea.
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