Variation in forest fire ignition probability in Finland

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A comparison of one- and two-compartment neighbourhoods in heuristic search with spatial forest management goals

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Export of dissolved organic carbon, nitrogen and phosphorus following clear-cutting of three Norway spruce forest growing on drained peatlands in southern Finland

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Objectives and motivations of small-scale forest owners : theoretical modelling and qualitative assessment

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Long-term impacts of forest harvesting related soil disturbance on log product yields and economic potential in a New Zealand forest

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Cambium dynamics of Pinus sylvestris and Betula spp. in the northern boreal forest in Finland

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Testing a large-scale forestry scenario model by means of successive inventories on a forest property

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Alteraciones biológicas de la madera: el estudio de los materiales constructivos del yacimiento de Pleta de l'Estall Serrer (Valle del Madriu, Andorra)

El análisis antracológico, dendrológico y tafonómico de tres estructuras pastoriles de época moderna del yacimiento de Pleta de l’Estall Serrer (valle delMadriu, Andorra) situado a 1.980mde altitud, nosmuestra una presencia casi absoluta del pino tipo negro y la presencia puntual de taxones arbustivos como las ericáceas. Se trata de especies típicas en un bosque subalpino de pino negro. La presencia casi absoluta del pino, nos ha permitido observar diferentes alteraciones de la madera que nos han proporcionado una gran información sobre el uso de la madera, sobre todo las alteraciones por microorganismos. Hemos podido distinguir varios tipos de alteraciones causadas tanto por insectos xilófagos e hifas de hongos. Además, hemos identificado algunos individuos de termitas subterráneas tanto vivas como carbonizadas. Las primeras son termitas que atacan la madera arqueológica durante los procesos postdeposicionales y las termitas carbonizadas seguramente fueron la causa del deterioro de las estructuras y su posterior destrucción a través de su incendio.

Soil compaction due to forest harvest operations

The objective of this work was to determine, through the use of the bearing capacity model, the traffic effects of the forest harvest operations on the preconsolidation pressure (sigmap), during one cycle of the eucalyptus plantation. The work was conducted using undisturbed soil samples, collected at the surface of the A horizon and in the top of the B horizon of an Udult (PA), Aquox (FX) and Udox (LA) soils. The undisturbed soil samples were used in the uniaxial compression tests. The soil sampling was done before and after the harvest operations. The operations performed with the Forwarder caused greater soil compaction than the ones done with the Feller Büncher and Harvester. The percentage of soil samples, in the region with additional soil compaction, indicated that the Udult was the soil class more susceptible to soil compaction, followed by the Aquox and Udox. Despite Udult is the more susceptible to soil compaction, the regeneration of the soil structure in this soil class was more efficient than in Aquox. The percentage of soil samples with sigmap values in the region with additional soil compaction in 1996, 1998 and 2004, after harvest operations, indicated a sustainable forest exploration in this period.

A new heuristic method for solving spatially constrained forest planning problems based on mitigation of infeasibilities radiating outward from a forced choice

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Empirical errors of small area estimates from the multisource National Forest Inventory in Eastern Finland

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Forest owners' acceptance of incentive based policy instruments in forest biodiversity conservation : a choice experiment based approach

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