Jirjis, Raida
- Department of Energy and Technology, Swedish University of Agricultural Sciences
Abstract
Fungal growth on two types of forest fuel chips, logging residue and oak wood was compared after six months of storage under different conditions. Two piles were built, one was located indoors and the other outdoors. Each pile contained two sections where the chips were stored in two forms, compacted and loose (uncompacted). Thermophilic and thermotolerant moulds were the dominant types of fungi recovered from the stored logging residue chips. Enoromous numbers of spores were counted, especially in the uncompacted sections. The viable spores count, however, was relatively low due to the high temperatures which developed during storage, particularly in the centre of the piles. In the stored oak wood chips, mesophilic and thermotolerant fungi were observed. The average total spore count was less than that to the stored logging residue, but the number of viable spores of mesophilic fungi was much higher. The distribution of the fungi in the wood chip pile was more uniform than that of the logging residue which showed great variations in the numbers of spores in different areas of the pile. A correlation between fungal distribution and the temperature of the section was evident throughout the different regimes.
Published in
Material Und Organismen
1989, volume: 24, number: 1, pages: 27-38
Publisher: DUNCKER & HUMBLOT GMBH
SLU Authors
UKÄ Subject classification
Bioenergy
Permanent link to this page (URI)
https://res.slu.se/id/publ/6241