Stand regeneration characteristics of dinar ic beech - silver fir forests in Gorski kotar region

Abstract

Inventurom šuma na području Gorskog kotara ukupno je postavljeno, izmjereno i procijenjeno 388 terenskih ploha. Izmjera i procjena stanja i strukture pomlađivanja provedena je izmjerom tankih stabala (tanjih od 10 cm) odvojeno za tri debljinska razreda. Za svaki debljinski razred utvrđena je struktura prema vrsti drveća i broju stabala te je procjenjena srednja visina stabala. Nadalje, procjenjivan je udio pomlađene površine prema 10 postotnih razreda te postotna zastupljenost pomladka kao i njegov način postanka i kvalitativno stanje prema vrstama drveća. Kontinuirano uspješno pomlađivanje preduvjet je prebornog gospodarenja. Stoga u kontekstu klimatskih promjena, te aktualne strukture bukovo-jelovih sastojina, informacije o stanju pomlađivanja imaju osobito značenje. Prikaz i analiza uspješnosti obnove, struktura pomladka prema načinu postanka, vrstama drveća kao i dinamika priljeva stabala u sastojinu u odnosu na vlasničku strukturu, ekološko-gospodarske tipove i namjenu šume rezultati su rada. Forest Inventory in the Gorski kotar region was total set, measured and estimated 388 research surfaces. Measurement and assessment of the condition and structure of rejuvenation was carried out by measuring thin trees (thinner than 10 cm) apart in three diameter classes. For each diameter class was determined by types of trees and number of trees also estimated mean height of trees. Furthermore, share of rejuvenated surface was assessed to 10 percentage grade and percentage representation of youth trees as well as its origin and qualitative status by tree species. Continuous rejuvenation is prerequisite of selection management. Therefore, in the context of climate change, and the current structure of beech and fir stands of information on the state of rejuvenation have great importance. Review and analysis of the success of renewal, structure of youth trees according to their origin, tree species as well as the dynamics of the inflow of trees in a stand with relationship to the ownership structure, ecological-economical types and purpose forests are the results of the work