Uticaj temperature vazduha i padavina na prirast crnog bora (Pinus nigra J. F. Arnold) - studija slučaja sa područja planine Rudnik

Abstract

U radu je istraživan uticaj temperature i padavina na prirast stabala kulture crnog bora na području planine Rudnik. U tu svrhu je uzeto 50 serija radijalnog prirasta, iz 25 dominantnih stabala. Pomenuti uticaj analiziran je primenom tri procedure: korelacije između sezonskih veličina temperature i padavina i RES hronologije indeksa radijalnog prirasta, korelacije između mesečnih temperatura i padavina i RES hronologije indeksa radijalnog prirasta i tzv. odzivne funkcije. Rezultati su pokazali da je crni bor u datim uslovima veoma senzitivan prema iznosima padavina u letnjim mesecima, na taj način da veće količine padavina u leto prouzrokuju statistički značajno veće iznose prirasta. Variranje prirasta mnogo manje je uslovljeno varijacijama temperature, pri čemu je registrovan slab negativan uticaj viših julskih temperatura na veličinu prirasta. Zaključeno je da je reakcija crnog bora na ovom lokalitetu u pogledu prirasta i njegove zavisnosti od klime slična reakciji crnog bora u Srbiji i zemljama u neposrednom okruženju, koje se karakterišu srodnim klimatskim uslovima.

The influence of temperature and precipitation on the growth of artificially estab-lished black pine trees in the area of Mountain Rudnik was studied in this paper. For that purpose, we bored 50 series of radial increment from 25 dominant trees. The aforementioned influence was analyzed by applying three procedures: a correlation between seasonal values of temperature and precipitation and RES chronologies of radial increment, a correlation between monthly temperature and precipitation data and RES chronologies, and response function anal-ysis. The results have shown that black pine was very sensitive towards the precipitation in summer months in the given conditions, in the way that higher amounts of summer precipita-tion resulted in significantly higher radial increment values. The variations of radial increment were less conditioned by temperature oscillations, whereby the week negative influence of July temperatures on the increment values was detected. It was concluded that the reaction of black pine in the investigated site in terms of increment and its dependence on climate was similar to the reaction of this species in Serbia and other neighbouring countries characterized by similar climate conditions.