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Displaying 1456 - 1460 of 1605Wood-to-energy expansion, forest ownership changes, and mill closure: Consequences for U.S. South's wood supply chain
The U.S. South's wood supply chain has undergone major changes over the past two decades in terms of forestland ownership and forest industry structure. Recent interest in producing energy from wood has raised questions about how a vibrant wood-energy market will impact the traditional southern wood supply chain. By using a survey of consulting foresters, this study examined how harvest tract size, forest ownership, and forest industry structure have changed within the U.S. South and how foresters expect the wood-energy market to impact the wood supply chain in the future.
Insect infestation and residential property values: A hedonic analysis of the mountain pine beetle epidemic
In recent years mountain pine beetles (MPB), Dendroctonus ponderosae, along with several other bark beetle species, have severely damaged coniferous forests in the western United States (U.S.) and Canada (Morris and Walls, 2009). Colorado provides one example of a region that has been heavily affected. The Colorado State Forest Service estimates that 769,000ha of Colorado's forests, of all jurisdictions, have been infested with MPB since the outbreak began in 1996 (Leatherman, 2009). An important consequence of this damage is declining utility (i.e.
Management strategies for maximizing carbon storage and tree species diversity in cocoa-growing landscapes
How do we manage the trade-offs between agricultural yields, biodiversity and ecosystem services? One option is to adopt high yield, intensive farming that allows land to be spared elsewhere for conservation (land sparing); another is to adopt low yield, extensive farming over a greater area that retains more biodiversity and protects ecosystem services (wildlife-friendly farming). We examine which is likely to be the best option to achieve high carbon storage and tree species richness in tropical cocoa-growing landscapes.
Web-based system for vineyards management, relating inventory data, vectors and images
A Web-based system is presented, integrating spatial information from remote sensing images, GPS measurements and inventory data. Monitoring, research and management of the grape production at Rio Grande do Sul State, Brazil (624,000 metric tons in 2006) can be done through a system entirely based in open-source codes.
River basin closure: Processes, implications and responses
Increasing water withdrawals for urban, industrial, and agricultural use have profoundly altered the hydrology of many major rivers worldwide. Coupled with degradation of water quality, low flows have induced severe environmental degradation and water has been rendered unusable by downstream users. When supply of water falls short of commitments to fulfil demand in terms of water quality and quantity within the basin and at the river mouth, for part or all of the year, basins are said to be closing.