Data for: Effects of selected white-rot fungi on the calorific value of beech wood (Fagus sylvatica L.)

The purpose of the present study was to determine selected energy parameters of beech wood affected by four species of white-rot fungi: Grifola frondosa, Hericium coralloides, Meripilus giganteus, and Trametes gibbosa. Wood degradation was studied under laboratory conditions. On days 60 and 120 after inoculation, beech wood samples were analyzed in terms of moisture content, density, elemental composition (C, H, N, S, O), ash content, as well as gross and net calorific value. Reference data were provided by measurements of healthy wood. Elemental analysis indicated small differences in absolute values between healthy and affected wood. White rot led to a slight decrease in C and H and an increase in O. In addition, a significant rise in moisture content was observed (by more than 100%). These factors reduced the net calorific value of healthy beech wood (18.37 MJ/kg) by 0.3 MJ/kg (T. gibbosa) to 0.5 MJ/kg (H. coralloides) after 120 days of the experiment. In terms of the amount of energy contained in a unit of volume, the initial net calorific value of 11.6 GJ/m3 decreased significantly by 18.1% (H. coralloides) to 33.6% (T. gibbosa).

本研究旨在测定受四种白腐真菌侵染的山毛榉木材的选定能量参数，供试真菌包括灰树花（Grifola frondosa）、珊瑚状猴头菌（Hericium coralloides）、大孔多孔菌（Meripilus giganteus）及偏肿栓菌（Trametes gibbosa）。本研究在实验室条件下开展木材降解相关实验，分别于接种后第60天和第120天对山毛榉木材样品进行多指标检测，检测指标涵盖含水率、密度、元素组成（C、H、N、S、O）、灰分含量以及总热值与净热值。参照数据取自健康山毛榉木材的检测结果。元素分析结果显示，受侵染木材与健康木材的元素绝对含量仅存在细微差异。白腐真菌侵染可导致木材中碳（C）、氢（H）含量小幅降低，氧（O）含量有所上升。此外，木材含水率出现显著提升，增幅超过100%。上述因素使得实验开展120天后，健康山毛榉木材的初始净热值（18.37 MJ/kg）出现下降，降幅区间为0.3 MJ/kg（偏肿栓菌侵染组）至0.5 MJ/kg（珊瑚状猴头菌侵染组）。就单位体积储能而言，健康木材的初始净热值（11.6 GJ/m³）显著下降，降幅区间为18.1%（珊瑚状猴头菌侵染组）至33.6%（偏肿栓菌侵染组）。