A two-level Hierarchical Timber Allocation model was developed that iteratively negotiates medium-term (sustainable forest management) decisions with operational (lumber production) plans. At the medium-term level, a multi-criteria timber allocation model optimally allocates forest land units, called stewardship units, to different forest products companies based on five sustainability criteria...

one of the most visible aspects of a forest stand structure is the spatial patterns of trees. competition affects on forest structure and its understanding is important, when the purpose of forest management is to imitate the dynamic of natural ecosystems. for this purpose, an unmanaged intact forest was selected with 26 hectares area. all chestnut leaf oak (quercus castaneifolia) trees with a ...

Quick reactions to customers’ needs, i.e. customized production, has been a common aim of the forest industries in Finland during the past decade. At first, it was thought to be suitable only for small and medium-sized industries, but nowadays large corporations have also developed their processes to make them increasingly customerorientated. Major development projects have been launched recent...

Many animals use public information (PI) gathered from conspecifics to assess the quality of potential foraging locations. To date, research on this phenomenon has focused almost exclusively on social foragers that live in groups and monitor nearby individuals. PI is potentially available to solitary foragers as well, in the form of cues (such as chemical cues) that persist in the environment a...

Research results are presented for two studies which use the common statistical method of decision trees. First, regression trees of the internal bond (IB) of 0.750” medium density fiberboard (MDF) identified significant regressors (α < 0.05) as “refiner steam pressure” which interacts with “press start control” and “dry fuel bin speed.” The highest IB (mean = 151 psi) occurred with “refiner st...

The plain problem of drying a cylindrical timber beam in average statement is considered. thermal diffusivity coefficients are expressed terms the porosity timber, density components vapour, air, and skeleton. mutual phase distribution during has been solved using energy balance equation. indicators process material depend on correct choice observance parameters medium.

Large areas of African moist forests are being logged in the context of supposedly sustainable management plans. It remains however controversial whether harvesting a few trees per hectare can be maintained in the long term while preserving other forest services as well. We used a unique 24 year silvicultural experiment, encompassing 10 4 ha plots established in the Central African Republic, to...

We conducted a two-part analysis to assess the effects of SPLATs on California spotted owls (Strix occidentalis occidentalis). First, we performed a retrospective analysis using 20 years of demographic data collected at 74 spotted owl territories that included the Last Chance Study Area (LCSA) and the nearby Eldorado Study Area (ESA). This approach deviated from our original plan to directly es...

Cross-laminated timber is increasingly being used in the construction of high-rise buildings due to its simple manufacturing system. In term of fire resistance, cross-laminated timber panels are promoted as having excellent fire resistance, comparable to that of non-combustible materials and to heavy timber construction, due to the ability of thick wood assemblies to char slowly at a predictabl...