Treesearch

These proceedings are a compilation of 20 papers that were presented at the regional meetings of the forest and conservation nursery associations and the Intertribal Nursery Council meeting in the United States in 2011. The Joint Meeting of the Southern Forest Nursery Association and Northeastern Forest and Conservation Nursery Association was held at the Pullman Plaza Hotel, Huntington, WV, July 25 to 28, 2011. Subject matter for the technical sessions included history and current status of tree planting and nursery production, mine reclamation research and implementation, American...

Presents recent Nebraska forest industry trends; production and receipts of industrial roundwood; and production of saw logs, veneer logs, pulpwood, and other products in 2009. Logging residue generated from timber harvest operations is reported, as well as wood and bark residue generated at primary wood-using mills and disposition of mill residues.

Presents recent Minnesota forest industry trends; production and receipts of industrial roundwood; and production of saw logs, veneer logs, pulpwood, and other products in 2007. Logging residue generated from timber harvest operations is reported, as well as wood and bark residue generated at primary wood-using mills and disposition of mill residues.

Many species of Bipolaris are important pathogens of grasses. This new species was isolated from Microstegium vimineum, an invasive plant in the USA. The fungus causes disease on Microstegium, but it also infects a wider range of hosts.

This paper outlines how state-and-transition simulation models (STSMs) can be used to project changes in vegetation over time across a landscape. STSMs are stochastic, empirical simulation models that use an adapted Markov chain approach to predict how vegetation will transition between states over time, typically in response to interactions between succession, disturbances and management. With STSMs a landscape is divided into a set of simulation cells, each cell is assigned to an initial vegetation state, and the model then predicts how each cell may change from one vegetation state to...

Effective national forest planning depends on scientifically sound analyses of land management alternatives relative to desired future conditions and environmental effects. The USDA Forest Service Pacific Northwest Region is currently using state-and-transition simulation models (STMs) to simulate changes in forest composition and structure for the revisions of five forest plans in Oregon and Washington. We illustrate the use of STMs to examine current and desired forest conditions, develop forest plan environmental impact statement (EIS) alternatives, and evaluate environmental effects,...

Between 2004 and 2009, the LANDFIRE project facilitated the creation of approximately 1,200 unique state-andtransition models (STMs) for all major ecosystems in the United States. The primary goal of the modeling effort was to create a consistent and comprehensive set of STMs describing reference conditions and to inform the mapping of a subset of LANDFIRE’s spatial products. STMs were created by more than 700 experts through a series of modeling workshops, individual meetings and web conferences hosted around the country. While model- building speed, efficiency and consistency may have...

The first ever Landscape State-and-Transition Simulation Modeling Conference was held from June 14–16, 2011, in Portland Oregon. The conference brought together over 70 users of state-and-transition simulation modeling tools—the Vegetation Dynamics Development Tool (VDDT), the Tool for Exploratory Landscape Analysis (TELSA) and the Path Landscape Model. The goal of the conference was to (1) provide opportunities for sharing experiences with different applications of the tools, (2) identify major existing conceptual or technological gaps, and develop goals for future state-and-transition...

The advancement of trees into Arctic tundra can increase total aboveground carbon storage. A study now shows, however, that greater plant growth also enhances belowground decomposition, resulting in a net loss of carbon from the ecosystem.

Around the world, youth are recognized as playing an important role in reducing the risk of disasters and promoting community resilience. Youth are participating in disaster education programs and carrying home what they learn; their families, in turn, are disseminating knowledge into the community. In addition to making a difference today, youth disaster education programs train the adults of tomorrow to be more prepared citizens. As social scientists and education researchers working in wildfire risk mitigation, we asked: how can wildfire education programs for youth help develop and...