Norway spruce (Picea abies) debarking water is an aqueous extract obtained as waste from the debarking of logs at paper mills. The debarking water contains a mixture of natural compounds that can exhibit diverse biological activities, potentially including fungicidal activity on some species of wood-decaying fungi. Thus, we investigated the growth rates of such fungi on agar plates to which deb...

Extensive forest conversion of the low-valued natural hardwood forest into coniferous plantations is the possible cause of the critical problem of squirrel debarking. The tree squirrel that causes the major damage is the red-bellied tree squirrel (Callosciurus erythraeus). Conifers are more susceptible to the damage than are hardwood species, especially the exotics. Intermediate-aged plantation...

A system consisting of a cut-to-length harvester, forwarder, mobile chipper and chip screen was tested :&r a 7-year-old plantation. Three levels of debarking effort by the harvester (minimal, partial and full), and two levels of screening (with and without) were evaluated. The harvester had the lowest production rate and highest cost of the system elements. Harvester production rate was strongl...

The bark of logs from coniferous trees is mostly debarked in the stand or roadside. At terminal points, storages, and mills industrial debarking machines have been operated for timber, as well. In recent time chainsaw mounted apparatus (C-Debarker), axe, a new tool that brushcutter (B-Debarker) used peeling barks in-stand. Debarking process very time-consuming work phase within total unit wood ...

Objectives: There is a huge demand for medicinal bark in developing countries and this demand is growing fast due to it high market values. To assess the effects of bark functions and tree capacities to recover from various debarking practices, a two-year experiment was conducted and several local harvest practices were tested on

The effects of the tool tip radius on debarking quality unfrozen and frozen black spruce logs were studied. power, energy consumption torque conditions also A proto-type one-arm ring debarker was used. experiment consisted using three radii (40, 180, 300 µm) for each temperature (-20°C +20°C). rotational feed speeds, overlap, rake angle kept constants. Debarking evaluated by two criteria: propo...