Forest Management Commons^™

The Impact Of Tree Species, Elevated Nitrogen Deposition, Stand Age, And Environmental Factors On Herbaceous Plant Communities In A Central Appalachian Hardwood Forest, Lacey J. Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Although the herb layer represents less than 1% of the biomass of temperate forests, this layer may contain up to 90% of the plant species in the forest and can contribute up to 20% of the foliar litter, thus playing an essential role in forest biodiversity and nutrient cycling. The objectives of this study were to investigate the differences in cover, species richness, Shannon-Wiener diversity, and evenness of herb layer plants a) under tree species associated with contrasting soil nitrogen levels and b) in watersheds that vary in nitrogen deposition, stand age, and watershed aspect at the Fernow Experimental Forest …

Northern Hardwood Silviculture: Preferences Among Family Forest Owners In The Western Upper Peninsula Of Michigan, Alexander C. Helman

Dissertations, Master's Theses and Master's Reports

In the northern hardwood forests of the Western Upper Peninsula of Michigan, single-tree selection is the most commonly used silvicultural system. This system provides both a sustained yield of timber and attempts to emulate the windfall disturbance regime that determines the uneven aged structure of northern hardwood forests. However, with concerns about tree species diversity loss and a lack of early successional forests, even-aged regeneration methods are likely to become an increasingly crucial tool in the toolbox for managing northern hardwood forests of the Lake States. The forests of the Western Upper Peninsula are comprised of a mosaic of ownerships, …

Reexamining The Utility Of Existing Climate Adaptation Frameworks Through Application On A Northern Forest, Alexander Rice

Dissertations, Master's Theses and Master's Reports

A review of the literature reveals the strengths and limitations of various climate adaptation frameworks and illuminates a general path by which a type of adaptation can be achieved. A number of useful frameworks exist but the number of independent case studies demonstrating the adaptation process in a detailed manner is much more limited. Additionally, components of the various adaptation processes can often seem vague and concepts such as adaptability ill-defined. For land managers approaching climate adaptation independently can be difficult, particularly in the areas of goal creation and vulnerability assessment. Within frameworks where user-defined adaptation goals dictate whether or …

Perceptions Of Forest Change In The Governmental Region Of Kaffrine, Senegal, Rhiley E. Allbee

Dissertations, Master's Theses and Master's Reports

Sénégal is a semi-arid West African country with a diverse ethnic makeup and a rapidly growing population that is largely rural, predominantly employed within the agricultural sector, and heavily reliant on the harvesting of forest products within state owned forests where populations have usufruct rights. The country experienced significant changes in land cover throughout the 20^th century due to a series of major droughts and large expansions in agriculture. These changes were partially concentrated throughout the region of Kaffrine, where the wooded savannas of the early 20^th century were systematically replaced by agriculture and converted to a shrub …

Assessing Soil Compaction Following A Winter Timber Harvest In The Western Upper Peninsula Of Michigan, Rafia Rahman

Dissertations, Master's Theses and Master's Reports

Harvesting during winter is encouraged as a best management practice to protect soil during logging operations. The western Upper Peninsula of Michigan typically experiences early and persistent snowfall, which insulates the forest floor and prevents soils from freezing. The objective of this study is to assess the effects of slash volume, snow depth, overstory treatment, and machine traffic intensity on soil bulk density following a winter harvest of a northern hardwood forest on cobbly silt-loam soils. The harvest was conducted at the Ford Forest in Alberta, Michigan using cut-to-length harvest systems (i.e. harvester and forwarder) during which the soil remained …

Harvest Intensity And Delineation Of Outwash Soils In Wisconsin, Robert Richard

Dissertations, Master's Theses and Master's Reports

The whole-tree harvest of an oak forest showed significant decreases to total nitrogen and potassium pools, and the calcium pool showed weaker evidence for significant declines in comparison to the stem-only harvest. Simulated whole-tree harvests in aspen decreased the total number of rotations by a full rotation on nutrient-poor outwash soils (Entic Haplorthods and Typic Udipsamments) by depleting the potassium, calcium, and magnesium pools in 180 years from whole-tree harvest in comparison to 225 years in the stem-only harvest. Nitrogen and phosphorus harvest removals did not compose a large percentage of ecosystem pools. Since harvest removals for some elements exceed …

Plant Community Response To Novel Silvicultural Treatments In Great Lakes Northern Hardwoods, Stefan F. Hupperts

Dissertations, Master's Theses and Master's Reports

The objective of this dissertation is to assess plant community response across a range of silvicultural disturbances and test ecological hypotheses to better inform ecologists and forest managers. To provide context for the utility of revising silvicultural systems, I review natural disturbance regimes and historical practices that have shaped contemporary Great Lakes northern hardwood forests (Chapter 2). Further, I identify important ways to expand the silvicultural toolbox and better emulate natural disturbance regimes. Building on this theoretical underpinning, I investigate the initial regeneration and plant community response to two novel silvicultural experiments: the Northern Hardwood Experiment for Enhancing Diversity (NHSEED) …

Adaptation Under The Canopy: Coffee Cooperative And Certification Contributions To Smallholder Livelihood Sustainability In Santa Lucía Teotepec, Oaxaca, Meghan C. Montgomery

Graduate Student Theses, Dissertations, & Professional Papers

The collapse and reorganization of global coffee markets associated with the “coffee crisis” have had profound, negative impacts on smallholder producer livelihoods throughout the world. In Mexico, the collapse of the International Coffee Agreement (ICA) coincided with withdrawal of government support for agriculture, which devastated producers dependent on coffee for their livelihoods. Smallholders responded by shifting livelihood strategies to diversify income, migrating, and converting primary forest cover to subsistence crops and pasture to support household livelihood security. In some instances, producers also joined or formed cooperative organizations to access specialty certifications that offer higher priced markets, extension information, and other …

Harvesting Forest Biomass In The Us Southern Rocky Mountains, Lucas Patrick Townsend

Graduate Student Theses, Dissertations, & Professional Papers

Ponderosa pine (Pinus ponderosa) and other mixed conifer forests of the United States southern Rocky Mountains (SRM) evolved under a low-severity, high-frequency fire regime. With the arrival of Euro-American colonists, fire was excluded from most forests, causing stands to grow dense and become prone to uncharacteristic high-severity crown fires. To combat wildfire threat, restoration treatments are frequently used to restore historic stand structure and function, effectively reducing high-severity fire risk. However, these treatments may be costly and little information is available regarding the forest operations used in the SRM. In this thesis, five forest operations were studied in 2017 to …

Smokejumper Obituary: Poncin, David E. (Missoula 1958), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

National Smokejumper Assocation Trail Maintenance Annual Report For 2018, National Smokejumper Association Trails Committee

Trails Reports

The Trails Maintenance Program Annual Reports compiled by the National Smokejumper Association Trails Committee summarizes the activities of the Trails Program. The members of the program also go by the title Trails Restoration and Maintenance Project Specialists (TRAMPS). The contents of the 2011 report include: 2018 NSA Trails Program Volunteer of the Year (VOY); Program Summary for 2018; Dixie; Lewis and Clark Trail; Bowery Guard Station #1; Big Flat Historic Ranger Station; West Fork Teton; Priest River Experiment Station; Long Tom Ridge; Lolo Pass Historic Cabin; North Fork Trailhead; Rocky Mountain National Park; Tent Lake; San Pedro Parks Wilderness Trail; …

Biological Aspects Of Mountain Pine Beetle In Lodgepole Pine Stands Of Different Densities In Colorado, Usa, Jose Negron

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Research Highlights: The biology of mountain pine beetle (MPB), Dendroctonus ponderosae Hopkins, in Colorado’s lodgepole pine forests exhibits similarities and differences to other parts of its range. Brood emergence was not influenced by stand density nor related to tree diameter. The probability of individual tree attack is influenced by stocking and tree size. Findings have implications for understanding MPB as a disturbance agent and for developing management strategies. Background and Objectives: MPB causes extensive tree mortality of lodgepole pine, Pinus contorta Douglas ex Loudon, across the western US and Canada and is probably the most studied bark beetle in North …

Smokejumper Obituary: Peterson, Darrel James "Pete" (Missoula 1950), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Oswalt, David P. (Cave Junction 1968), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Changing Land-Use From Pinus Elliottii To Eucalyptus Bentamii In Southwest Louisiana Affects Understory Vegetation Richness, Diversity, And Functional Diversity Patterns, Andrea De Stefano

LSU Doctoral Dissertations

In the Western Gulf region of the United States cold-tolerant eucalyptus have been explored as pulpwood feedstock. However, non-native plantations may alter understory species diversity, modifying environmental conditions and soil characteristics. Few studies have compared eucalyptus plantations with other ecosystems to understand the impacts of converting these land uses on understory vegetation in the United States. Three plantations were selected: (1) slash pine (Pinus elliottii) established in 2008, (2) slash pine established in 2013, and (3) and Camden white gum (Eucalyptus benthamii) established in 2013. The objectives of this study were to: (1) investigate potential changes …

Smokejumper Obituary: Clairmont, Stephen A. (Missoula 1962), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Timber Talk, Vol. 56, No. 4, December 2018

Timber Talk: Nebraska Forest Industry Newsletter

In This Issue:

Lumber Market Reports

Hardwood Lumber Prices

NOTE FROM EDITOR: Transitioning to Electronic Delivery Only

NDA Expands EAB Quarantine

Forest Products Grants Available

Wildfires and Communities in Nebraska

Forest Industry Spotlight: “Good Neighbor Authority” in Nebraska

Trading Post

Timber Sales

Spatio-Temporal Reconstruction Of Remote Sensing Observations, Kamrul Khan

Graduate Theses and Dissertations

The USDA Forest Service aims to use satellite imagery for monitoring and predicting changes in forest conditions over time within the country. We specifically focus on a 230, 400 hectares region in north-central Wisconsin between 2003 - 2012. The auxiliary data collected from the satellite imagery of this region are relatively dense in space and time and can be used to efficiently predict how the forest condition changed over that decade. However, these records have a significant proportion of missing values due to weather conditions and system failures. To fill in these missing values, we build spaciotemporal models based on …

New London Urban Forestry: Inventory And Analysis, Isabelle Smith

Other Publications and Reports

No abstract provided.

Interactions Between Fire Severity And Forest Biota In The Central Sierra Nevada: Formation And Impact Of Small-Scale Fire Refugia And The Effect Of Fire On Forest Structure Predictive Of Fisher (Pekania Pennanti) Den Habitat, Erika M. Blomdahl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fire is a natural and essential component of forests in western North America. Fire maintains biodiversity through the creation of different habitat types, and regular fire rotations reduce the accumulation of woody fuels and thick understory plant densities that give rise to catastrophic fire. The practice of fire exclusion has altered western forests and increased the risk of widespread change under rising temperatures projected for the 21^st century. To manage for the reintroduction of fire it is critical that we understand the interactions between fire and forest biota in recently fire-suppressed forests.

In Chapter 2, I studied the formation …