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Suecia, Canadá, Nueva Zelandia
In Canada, where public ownership of forestland is prevalent, a central decision facing policy makers is how to allocate timber resources to private forest companies. Debates tend to focus around what proportion of the annual harvest should be devoted to markets as opposed to long-term contracts. To give a guide to policy makers, we surveyed forest firms from New Zealand and Sweden where this decision is based purely on a commercial basis. On average, mills source fifty percent of their fibre from the market.
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Artículos de revistas y libros
Piñon (Pinus spp.) and juniper (Juniperus spp.) expansion and infilling in sagebrush (Artemisia L.) steppe communities can lead to high-severity fire and annual weed dominance. To determine vegetation response to fuel reduction by tree mastication (shredding) or seeding and then shredding, we measured cover for shrub and herbaceous functional groups on shredded and adjacent untreated areas on 44 sites in Utah.
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Artículos de revistas y libros
This paper assesses the effects that different economic instruments to reward carbon sequestration services might have on forest management, especially on the optimal rotation period. Three different carbon crediting schemes are considered, which are based on different accounting rules. The schemes are different with respect to the question whether and how to account for carbon emissions. The forest valuation method used for calculation is based on the land expectation value (LEV), which was adjusted for the value of carbon sequestration services.
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Artículos de revistas y libros
Around 100years ago, when Crown land in the interior of northern Sweden was privatized, part of the forest land was set aside as forest commons. Today, there are 33 such forest commons jointly managed and owned in common mainly by private forest owners. The forest commons may be looked upon as a means by which the state controls the production of and returns from the forests belonging to small and less affluent forest owners. Further, an attempt has been made to use the forests as a tool to move the self-interests of these small forest owners closer to providing public goods.
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Artículos de revistas y libros
Land consolidation is an essential aspect of rural restructuring in China. Community-based agricultural land consolidation projects were developed to restructure the agricultural sector by pooling fragmented land and leasing it as consolidated plots or employing laborers to farm the land. Despite the rapid growth in the number of villages that generally adopt the approach, the relative amount of farmland managed under the program remains low, and empirical studies explaining this variation are scarce.
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Artículos de revistas y libros
Stands of quaking aspen (Populus tremuloides) rank among the most biologically diverse plant communities across the intermountain region of western North America. Marked declines of aspen have occurred in recent decades, likely due to a combination of effects from changes in fire regimes, herbivory, climate (e.g. drought), and interspecific competition with conifer species. However, it is poorly understood how the effects of these factors are manifested at a landscape scale over decadal time periods.
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