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- Title
SPALNÉ TEPLO HLAVNÝCH FRAKCIÍ NADZEMNEJ BIOMASY BUKA (FAGUS SYLVATICA L.), DUBA (QUERCUS PETRAEA (MATT.) LIEBL.) A HRABA (CARPINUS BETULUS L.).
- Authors
PETRÁŠ, RUDOLF; MECKO, JULIAN; KUKLA, JÁN; KUKLOVA, MARTIGA
- Abstract
In this article the results of the research focused on the calorific value capacity in the dry matter of above-ground biomass of beech, sessile oak and hornbeam are presented. For each tree species, 5–6 trees were felled and biomass samples were taken. From the lower, middle and crown part of the trunks, a disc of wood with bark was cut off and also a sample of branches (small-wood) was taken from crowns. On the discs, the bark was separated from the wood. The calorific value content was determined from all samples and fractions (wood, bark, small-wood). Th e differences in the calorific value among the fractions, their position on the trunk and tree species were investigated by an analysis of variance and a t-test. Th e biggest differences are between wood and bark. Th e bark has lower values of calorific value than wood, by 1,000–1,700 J g-1. Coniferous tree species have higher calorific value by 600–900 J g-1 (3–4%) for wood; 1,000–1,400 J g-1 (5–7%) for small-wood and 2,400–2,700 J g-1 (13–15%) for bark compared to deciduous species.
- Subjects
DURMAST oak; TREE trunks; TREE felling; ANALYSIS of variance; BIOMASS
- Publication
Reports of Forestry Research / Zprávy Lesnického Výzkumu, 2021, Vol 66, Issue 1, p49
- ISSN
0322-9688
- Publication type
Article