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Lokalna kronologija širin branik kostanja (Castanea sativa) iz Poljanske doline : diplomsko delo - visokošolski strokovni študij = Local tree-ring chronology of chesnut (Castanea sativa) from Poljanska dolina, Slovenia : graduation thesis - higher professional studies
Debeljak, Gašper, 1985-
Opravili smo dendrokronološke in dendroklimatološke raziskave pravega kostanja (Castanea sativa) z rastišč v Poljanski dolini. Analizirali smo širine branik 18 dreves. Iz posekanih dreves smo odvzeli ...kolute, jih posušili in iz vsakega odvzeli po 2 radialna vzorca, ju označili in zgladili. Izmerili smo širine branik, zaporedja širin branik pa smo sinhronizirali in datirali. S programom TSAP Win smo sestavili surovo, s pomočjo programa ARSTAN pa surovo in indeksirano (residual) lokalno kronologijo širin branik, dolgo 83 let za obdobje 1925-2008. Izračunali smo tudi značilna leta. Posebno pozornost smo posvetili drevesom, kjer je prirastek padel pod 0,5 mm, verjetno zaradi delovanja škodljivcev, ki ogrožajo preživetje pravega kostanja v Sloveniji. Dendroklimatološke analize s programom DENDROCLIM 2002 so pokazale, da padavine nimajo statistično značilnega vpliva na variiranje širin branik kostanja, temperature v oktobru preteklega in v januarju tekočega leta pa imajo statistično značilen pozitiven vpliv na variiranje širin branik. Primerjave kostanjeve kronologije s kronologijami drugih drevesnih vrst v Sloveniji so pokazale, da kostanjeva kronologija ni statistično značilno podobna kronologijam hrasta, bukve ali jelke iz različnih rastišč v Sloveniji. To nakazujejo tudi primerjave rezultatov dendroklimatoloških analiz.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [G. Debeljak], 2011
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