Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The decomposition of wood mass under conditions of climax spruce stands and related mycoflora in the Krkonoše Mountains.

Abstract

The mycoflora of climax spruce [Picea abies] stands in the Krkonoše Mountains, Czech Republic, was investigated in relation to wood decomposition. The areas under observation were affected more or less by air pollution since the 1980s. The average mass of dead wood found on the plots was 124 m3 per ha - the mass of fallen trunks was approximately 32 m3 per ha, which was the mean value from total average. Approximately 128 species of macrofungi were identified including 43 species of wood-decaying fungi. Also 54 mycorrhizal species were identified. Among the mycorrhizal fungi, approximately 10 species were dominant, namely Laccaria laccata, Lactarius helvus, L. mitissimus, L. rufus, Russula emetica and Russula ochroleuca. The dominant wood-decaying fungi on monitored plots in climax spruce stands were the brown rot fungi. The proportion of brown rot fungi in wood decomposition was 60-95% of dead wood mass on the plots of climax spruce stands. The dominant species causing brown rot was Fomitopsis pinicola. Among the white rot fungi identified, the most important was Stereum sanguinolentum, which comprised 17% of wood decomposition on plots damaged by deer.