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Research Papers, Notes and FIA Bulletins

This report presents a summary of the most recent inventory of Arizona’s forests based on field data collected between 2001 and 2014. The report includes descriptive highlights and tables of forest and timberland area, numbers of trees, biomass, volume, growth, mortality, and removals. Most sections and tables are organized by forest type or forest-type group, species group, diameter class, or owner group.
Mastication is the process of chipping or shredding components of the tree canopy or above-ground vegetation to reduce the canopy, alter fire spread rates, and reduce crown fire potential. Mastication as a fuel treatment, either alone or in combination with prescribed fire, has been the subject of much research. This research has shown that modeling expected fire behavior in these fuels is challenging.
The planning units of the National Forest System are beginning to revise their existing land management plans using the 2012 Forest Service regulations. Ecological integrity is a central concept to the regulations. However, implementing the concept is challenging in light of climate change. Historical ecology, particularly the concept of natural range of variation, informs planning for ecological integrity and climate change.
A study of commercial timber-harvesting activities in Montana was conducted during 2011 to 2016 to estimate growing-stock removals, characterize current tree utilization and logging operations, and assist with estimating the amount of woody biomass left onsite after harvesting. Sample logging sites were selected within major geographic regions proportional to 5-year timber harvest volumes.
This Resource Bulletin contains findings from a census of Wyoming’s primary forest products industry for calendar year 2014. Part I of the series presents information on the volume of timber harvested in the State by ownership, species, product, and resource area. It also describes timber flow within the State and across State lines.
This Resource Bulletin contains findings from a census of Wyoming’s primary forest products industry for calendar year 2014.
This Resource Bulletin presents findings from a census of Wyoming’s primary forest products manufacturers for calendar year 2014. Part III of the series presents information on sales value and employment associated with primary wood products manufacturing, the economic impact of forest products manufacturing in the State, and an analysis of the broader forest industry and how it has changed over time.
The University of Montana’s Bureau of Business and Economic Research, in conjunction with the Interior West Forest Inventory and Analysis Program of the U.S. Forest Service, conducted a census of Wyoming’s timber processors that operated during calendar year 2014.
This report summarizes the most recent inventory of Wyoming’s forests based on field data collected between 2011 and 2015. The report includes descriptive highlights and tables of area, numbers of trees, biomass, carbon, volume, growth, mortality, and removals. Most sections and tables are organized by forest type or forest-type group, species group, diameter class, or owner group.
Typical indicators of rangeland health are used to describe health and functionality of a variety of rangeland ecosystems. Similar indicators may be applied to forested locations to examine ecological health at a local forest level. Four rangeland health indicators were adapted and applied to data compiled by the U.S.

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