Erfahrungen über die Auswirkungen längerer Wasserlagerung auf die Qualität von Nadelstammholz

Summary

Unbarked windthrown softwood timber was stored in water for about two years and during that time the protection effect against storage decay has been tested at certain intervals. The moisture content of the seperately swimming logs did not change remarkably in the interior of the stems, only from their ends some water has diffused into the wood. Apart from a small light red-brown discolouration in consequence of the penetration of tannin from the bark into the wood, which has no economical effect, in all these logs not any injuries caused by fungi, insects or cracks could be observed. When the logs are piled in more layers, the stems of the upper layers dried faster and showed all the wellknown storage damages. Provided that timber is sawn soon after the landing, water storage can be considered as an effective mean to prevent degradation during storage, but if sawing is retarded, the wood will be attacked by insects and fungi as well as the stems stored in forests after felling.