AbstractGlobally, about 20 million ha of land area is occupied by plantations Eucalyptus . Motor-manual tree harvest-ing techniques (using chainsaws) are still applied in eucalypt plantations, especially difficult terrains or for large- sized trees where mechanised felling may not be an effective and safe possible option to apply. There little information available on motor-manual stands. This ...

With cut-to-length harvesters, tree stems are measured and cut into different timber assortments at the time of felling. These measurement data collected from harvested trees can be used for decision-support levels forest industry chain also planning when combined with remote sensing data. The aim this study was to examine operational application predicting merchantable stem volume, basal area,...

Holmgren, L. 2006. Forest Ownership and Taxation in a Swedish Boreal Municipality Context. Doctor’s dissertation. ISSN 1652-6880, ISBN 91-576-7098-6 Forest ownership and changes in the forestry sector have played an important role for development in northern inland Sweden and remain vital for a sustainable development. Examining forest business activity and the Swedish tax system this thesis ai...

It is well-known that severe deformation to metals causes a direct grain refinement of the matrix without special heat-treatments due to the mechanism of dynamic continuous recrystallization (DCR). However, the microstructural revolution during severe deformation is seemed to be different depending on the deformation mode, namely the direction of deformation. In general, multi-directional defor...

The objects of research were forest plantations, passed through renovation rubles in the Arkhangelsk forestry region. Trial plots established spruce plantations (bilberry and sphagnum forest), on fresh haulage, apiary, old haulage after felling more than 30 years ago. Based results research, a model was built, with help which it is consistently assessed during course what happens to stand cutti...

-A chipper-fonuarder system offers an alternative for biomass hawcstfng. Components are a small feller buncher for felling and bunching. and a chipper-forwarder that chips at the pile and transports the chips to roadside. In a case study on a mixed pine and hardwood site in Georgia after conventional hawesting, production rates and cost estimates for a prototype chfpperforwarder were developed....

Prolonged exposure to hand-arm vibration (HAV) generated by chainsaws can cause HAV syndrome, i.e., disorders in the upper extremities of forestry workers. Progress of HAV syndrome depends on the intensity of mechanical vibration transmitted throughout the body, which is directly proportional to coupling forces applied by the woodcutter to a vibrating tool. This study aimed to establish a metho...

Industrial logging has become the most extensive land use in Central Africa, with more than 600,000 square kilometers (30%) of forest currently under concession. With use of a time series of satellite imagery for the period from 1976 to 2003, we measured 51,916 kilometers of new logging roads. The density of roads across the forested region was 0.03 kilometer per square kilometer, but areas of ...