are conifers in a long-term decline?
Srdjan Keren (Avtor), Renzo Motta (Avtor), Z. Govedar (Avtor), Radovan Lučić (Avtor), Milan Medarević (Avtor), Jurij Diaci (Avtor)

Povzetek

Regression of conifers in European mixed old-growth mountain forests has been observed for a long period and studied from different aspects. Old-growth (OG) forests in Bosnia and Herzegovina (BiH) have not experienced heavy air pollution and chronic overbrowsing that have affected many other European OG forests, while climatic and anthropogenic disturbances have been well documented. We analysed stand structure in the Janj OG forest, compared it with inventories of Lom and Perucica OG forests (BiH) and with earlier inventories of the same reserves. At present, OG forest Janj is characterized by a high growing stock (1215 m$^3$·ha$^{−1}$). This is due to good site quality, prevalence of conifers (84%) and dominant endogenous processes in recent decades. In all three OG forests, indicators of structural change exhibited progression of European beech over time. Historical evidence revealed the occurrence of warm summers and droughts followed by bark beetle outbreaks in the 1920s, 1940s and early 1950s, which in turn influenced a marked conifer decline. It seems likely that repeated canopy opening released waves of European beech regeneration. These stand structural changes have delayed the rejuvenation of conifers and can help explain the early observations of conifer decline.

Ključne besede

pragozd;bukev;iglavci;vremenski ekstremi;mixed old-growth forest;structural attributes;Fagus sylvatica progression;climatic extremes;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*228.81:630*111.83(497.6)(045)=111
COBISS: 3872934 Povezava se bo odprla v novem oknu
ISSN: 1999-4907
Št. ogledov: 170
Št. prenosov: 67
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: pragozd;bukev;iglavci;vremenski ekstremi;
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 1243-1266
Letnik: ǂVol. ǂ5
Zvezek: ǂiss. ǂ6
Čas izdaje: jun. 2014
DOI: 10.3390/f5061243
ID: 13470087