Hollow logs and logging residues from Deramakot Forest Reserve, Sabah, Malaysia

To optimize the use of resources of Deramakot Forest Reserve, a model area for sustainable management of tropical forests in Sabah, Malaysia, a study on the utilization of hollow logs and other logging residues was initiated. In a pilot study, how much high quality timber can be extracted from trees regarded as hollow by the felling team of the logging contractor was evaluated. The amount of extractable timber considered as timber of low-quality (upper stem parts, top portions, big branches) was also determined. At the same time whether the chain saw method is a reliable method for the detection of hollow stems was tested.