The operating hourly cost of the machine is a suitable factor to analyze the cost fluctuation certain machinery in a changing environment and to find of economically feasible work concepts for the studied machine system. This paper, which is based on studies carried out in northern forests of IR-Iran, analyzed and compared costs of four skidding and excavation machines used in timber harvesting...

The increasing dependency of many businesses with information technology (IT)and the high percentage of the IT investment in all invested capital in businessenvironment ask for more attention to this important driver of business. Thelimitation of capital budget forces the managers to look for more wise investment inIT. There are many cost-cutting techniques in the literature and each of them ha...

Regionalization, or the grouping of objects in space, is a useful tool for organizing, visualizing, and synthesizing the information contained in multivariate spatial data. Landscape pattern indices can be used to quantify the spatial pattern (composition and configuration) of land cover features. Observable patterns can be linked to underlying processes affecting the generation of landscape pa...

Management changes such as drainage, fertilisation, afforestation and harvesting (clearfelling) of forested peatlands influence watertable (WT) position and groundwater concentrations of nutrients. This study investigated the impact of clearfelling of a peatland forest on WT and nutrient concentrations. Three areas were examined: (1) a regenerated riparian peatland buffer (RB) clearfelled four ...

the importance of zagros forests and interdependence of local communities to forest resources have led to complexity of its management. the role of local communities and investigating their relations toward implementation of natural resources co-management are undeniable. social network analysis (sna) approach is a new method which illustrates relations among local beneficiaries and has importa...

Oak decline is a process induced by complex interactions of predisposing factors, inciting factors, and contributing factors operating at tree, stand, and landscape scales. It has greatly altered species composition and stand structure in affected areas. Thinning, clearcutting, and group selection are widely adopted harvest alternatives for reducing forest vulnerability to oak decline by removi...

This thesis concerns a mechatronic system, designed and developed for the forest industry, to trace logs from forest to sawmill. The research is a key part of a large research project launched by the EU in 2006 called the Indisputable Key project. Wood waste during harvesting, transportation and refinement is a major concern for the wood industry worldwide. Some raw materials are not suited for...