Dendroklimatološka analiza rasta jele (abies alba mill.) na području planine Borja, Bosna i Hercegovina

Abstract

U radu su prikazani rezultati dendroklimatološke analize rasta jele na po-dručju planine Borja, Bosna i Hercegovina. Potrebni podaci su uzeti na 2 lokaliteta, a uzorkom je obuhvaćeno ukupno 60 serija radijalnog prirasta (15 dominantnih stabala po lokalitetu sa po dva izvrtka). Provedena je standardna dendrohronološka obrada i analiza podataka primenom softvera Coffecha i Arstan. Dobijena je preliminarna regi-onalna hronologija jele za područje planine Borja, dužine 137 godina (1878-2014. godi-na). Dobijeni rezultati korelacione analize između indeksa radijalnog prirasta de-finisane hronologije, sa jedne strane i padavina i temperature po mesecima, sa druge strane, pokazali su da veće količine padavina u leto izraženo povećavaju prirast jele, a da povećanje temperature u ovim mesecima ne izaziva značajnu redukciju prirasta. Rezultati primene FAI indeksa suše u navedene svrhe pokazali su da intenzivnije suše u letnjim mesecima mogu izazvati značajnu redukciju prirasta jele na datom području.

This paper presents the results of a dendroclimatological analysis of the growth of fir trees in the Borja mountain area, Bosnia and Herzegovina. The required data were taken in 2 sites, and the sample covered a total of 60 series of radial increment (15 dominant trees per site with two cores). Standard dendrochronological processing and data analyses using the Coffecha and Arstan software were performed. The preliminary 137-years long regional fir chronology for the Borja mountain area was obtained. The obtained results of the correlation analysis between the radial increment index of the defined chronology, on the one hand, and the monthly precipitation and temperature, on the other, showed that higher summer pre-cipitation significantly increased the increment of fir, and that the increase in temperature in these months did not not cause a significant increment reduction. However, the results of the FAI drought index application for the stated purposes have shown that more intense droughts in the summer months can cause a significant reduction in the increment of fir in a given area.