Forest Sciences Commons^™

Economies Of Extinction: Animals, Labour, And Inheritance In The Longleaf Pine Forests Of The Us South, Nathaniel Otjen

Animal Studies Journal

Despite mounting critiques, extinction continues to be framed as a unidirectional problem where humans, through acts of negligence and intent, lead nonhuman species to their demise. In addition to universalizing the actors and processes involved, unidirectional approaches overlook the ways nonhuman beings participate in the extinction of others and the ways extinction continues to impact multispecies communities long after the violent event or the death of an endling. With its focus on how nonhuman animals experience and navigate violence, the field of critical animal studies can illustrate how nonhuman animals contribute to extinction events and how extinction unfolds across distinct …

Assessing Soil Disturbance From Tethered Logging On Steep Slopes In Northern California, Karolyn Marie Fagundes

Cal Poly Humboldt theses and projects

The implementation of tethered harvesting allows for the expansion of mechanized logging onto steeper slopes. Recent updates to the California Forest Practice Rules have explicitly removed the slope limitation for logging equipment, provided it’s tethered. California is now witnessing the reintroduction of ground-based logging equipment on steep slopes. Previously, operating equipment on steep slopes was considered detrimental due to the potential for soil disturbance. However, tethered equipment interacts with the soil in a new way due to the use of a winch. Relatively few studies have attempted to quantify soil disturbance with this new practice. The goal of this study …

Timber Harvesting On Fragile Ground And Impacts Of Uncertainties In The Operational Costs, Alex K. George, Anil Raj Kizha, Laura Kenefic

Forest Resources Faculty Scholarship

Forested wetlands with high water tables are sensitive to disruption from harvesting yet support commercially desired tree species like northern white-cedar. Winter harvest was conducted in Maine, USA, to compare operational costs and productivity of cut-to-length harvesting in cedar (fragile soil) and non-cedar stands (mixed wood, sturdy soil), evaluate uncertainties in harvesting costs and influential factors, and forecast time for post-harvest recovery to pre-harvest volumes. Operational costs were calculated using detailed time and motion studies. Operational costs for the cedar stands were higher than non-cedar. Regression models were developed for harvesters, forwarders, and self-loading trucks; number of logs per cycle …

Soil Disturbance In Sierra Nevada Montane Meadow Following Lodgepole Pine Removal, Nicholas Cary

Master of Science in Environmental Sciences and Management Projects

Climate change and other anthropogenic stressors are driving conifer encroachment into meadow habitat. Encroachment, if ignored, can revert meadows back into dense forested habitat, negating meadow’s ecologic services (Durak et al. 2014). This research attempts to measure soil and stream habitat disturbances in Rock Creek meadow, located with Collins Pine Company land in Plumas County, California after clear-cut removal of encroaching lodgepole pine with mechanical machinery. Soil bulk density, ground cover transect data, and stream habitat conditions were monitored before (July 2019) and after (June 2021) restoration to measure changes in soil compaction, stream temperature, and surface disturbance (rutting/ tracks). …

Influence Of Timber Harvesting Operations And Streamside Management Zone Effectiveness On Sediment Delivery To Headwater Streams In Appalachia, Daniel Bowker, Jeffrey W. Stringer, Christopher D. Barton

Forestry and Natural Resources Faculty Publications

Disturbances created by timber harvesting equipment and associated haul roads and skid trails can create overland sediment flows (sediment paths), especially in steeply sloping terrain, leading to stream sedimentation. This study investigated the effect of variables associated with GPS tracked harvest equipment movement, skid trail development and retirement, topography, and streamside management zone (SMZ) width and tree retention on sediment delivery to streams. While the intensity of harvest equipment traffic was not correlated with sediment path development, the presence and location of skid trails were. All of the sediment paths were found to originate at water control structures, influenced by …

Community-Governed Multifunctional Landscapes And Forest Conservation In The Sierra Norte Of Oaxaca, Mexico, Barbara Pazos Almada

FIU Electronic Theses and Dissertations

Community forestry is an evolving approach to forest management, shown to maintain forest cover, while generating income for local communities. In Sierra Norte (SN), a region with no public protected areas, indigenous communities have been actively conserving their forests for decades, through conservation zoning and careful management of their logging areas. This study found that across 22 communities in SN, an estimated 2,949,116.50 m³ of timber were produced from 1993 to 2013, while the region maintains 78% forest cover. About 75% of the forest is under some form of community conservation. Community governance plays a major role, as rules …

Restoration Of A Wet Longleaf Pine (Pinus Palustris) Savanna In Southeast Louisiana: Burning Toward Reference Conditions, Alex K. Entrup

University of New Orleans Theses and Dissertations

This study quantifies the changes in vegetation composition and structure of a fire-excluded Pinus palustris (longleaf pine) wetland savanna restoration site in southeastern in comparison to a proximate contemporary reference site. The restoration site was invaded by hardwood species and off-site pines, and never underwent extensive soil disturbance. The restoration treatments involved logging across portions of the site and the reintroduction of fire across the entire site. All species present in 10m² quadrats were recorded prior to treatment and throughout the 17 year study at reference and treatment sites. The community composition of both logged and unlogged sites converged …

Using The Landsat Data Archive To Assess Long-Term Regional Forest Dynamics Assessment In Eastern Europe, 1985-2012, S. Turubanova, P. Potapov, A. Krylov, A. Tyukavina, Jessica L. Mccarty, V. C. Radeloff, M. C. Hansen

Michigan Tech Research Institute Publications

Abstract. Dramatic political and economic changes in Eastern European countries following the dissolution of the “Eastern Bloc” and the collapse of the Soviet Union greatly affected land-cover and land-use trends. In particular, changes in forest cover dynamics may be attributed to the collapse of the planned economy, agricultural land abandonment, economy liberalization, and market conditions. However, changes in forest cover are hard to quantify given inconsistent forest statistics collected by different countries over the last 30 years. The objective of our research was to consistently quantify forest cover change across Eastern Europe from 1985 until 2012 using the complete Landsat …

Impacts Of Logging And Prescribed Burning In Longleaf Pine Forests Managed Under Uneven-Aged Silviculture, Ferhat Kara, Edward Francis Loewenstein

Turkish Journal of Agriculture and Forestry

The longleaf pine (Pinus palustris Mill.) ecosystem has historically been very important in the southeastern United States due to its extensive area and high biodiversity. Successful regeneration of longleaf pine forests requires an adequate number of well-distributed seedlings. Thus, mortality of longleaf pine seedlings during logging operations and prescribed burning appears to be important. Longleaf forests have been commonly managed using even-aged silvicultural methods, but, recently, interest in the use of uneven-aged (UEA) methods has increased in these forests. Research on the impact of UEA logging in longleaf forests is limited. In addition, the influence of overstory density on the …

The Impacts Of Logging With Current And Modified Best Management Practices On Watershed Characteristics In Eastern Kentucky, Chase Clark

Theses and Dissertations--Forestry and Natural Resources

In Kentucky, Best Management Practices (BMPs) were developed to protect the integrity of water resources during and after silvicultural operations, but their effectiveness is largely unknown. The study objectives were to (1) quantify the extent to which current BMPs minimized logging-related changes in stream water quality, channel morphology, and the content of woody debris and (2) quantify the extent to which modified BMPs influenced these characteristics. Six watersheds in eastern Kentucky were commercially logged in 2008-2009. In each watershed, one of three treatments was implemented (each replicated once). Treatment 1 (BMP) was based on current Kentucky BMPs. In treatments 2 …

Community Forests : A Study Of New Hampshire's Town-Owned Forests, Anna Christie-Carnicella

Legacy Theses & Dissertations (2009 - 2024)

New England states have a long history of forest management, beginning in the seventeenth century, with community forests evolving over time from communal forests during colonial times to town-owned forests managed by conservation commissions in the present time. New Hampshire towns provided a case study of the current state of town-owned forest protection and management, with a focus on timber management. I administered a survey to 50 randomly sampled towns and received data from 29 about permanent protection and management activities on town-owned forestland (≥ 50 acres). I used this data, demographic, and landscape data, to evaluate permanent protection and …

Mp762: Harvesting Equipment Cycle Time And Productivity Guide For Logging Operations In Maine, Patrick Hiesl, Jeffrey G. Benjamin

Miscellaneous Publications

This guide provides cycle time and productivity information for harvesting equipment commonly used in Maine’s logging industry for partial harvests. Data were collected in terms of time consumption per work task. With these data, cycle time equations were developed. Productivity functions were developed using tree volumes. It is important to remember that productivity may vary from stand to stand due to differences in tree volume at the site level. Cycle time functions are independent of tree volume and will give fairly accurate predictions of time consumption per machine.

Experiments To Measure The Effects Of Timber Harvesting Equipment On Surface Lithic Scatters, Douglas J. Baughman

All Master's Theses

The importance of cultural resource preservation cannot be overstated; however local economies are at least as important. Due to conservative archaeological site protection practices in Region 5 of the United States Forest Service, the economy of Northeastern California is being adversely affected. In an attempt to help the Forest Service make more informed management decisions and improve the Northeastern California economy, I undertook experiments on the effects of timber harvesting on lithic scatters on Modoc National Forest. The experiments involved placement of 225 glass tiles (proxy lithics) in each of three plots subject to vehicle traffic and log dragging by …

Notes On The Diet Of The Malay Civet (Viverra Tangalunga) And Other Civets In Logged And Unlogged Lowland Dipterocarp Rain Forests In Sabah, Borneo, Christina P. Colon, John B. Sugau

Publications and Research

Civet diets were examined in a logged and unlogged Bornean rain forest. Malay civets (Viverra tangalunga) consumed invertebrates, fruit, rodents, insectivores, birds, snakes and lizards, and appear to show preference for centipedes and scorpions. Other civet species consumed fruit, such as figs, Connarus sp. and Annona sp., particularly in the unlogged forest, but also consumed invertebrates and vertebrates. Reduced fruit consumption observed in the logged forest may be due to lower availability and may be offset by increased consumption of invertebrates. The increased overlap in diet between Malay civets and other civets in disturbed areas may lead to …

Slides: Second Thoughts About The Antiquities Act: Does The Process For Public Land Decisionmaking Have An Ethical Dimension?, James R. Rasband

The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)

Presenter: James R. Rasband, Dean of the J. Reuben Clark Law School, Brigham Young University (Provo, UT)

32 slides

Penobscot Men, Michael Prokosch

Maine History

The Fowlers of Millinocket lie near the heart of Maine’s north woods story. Henry David Thoreau and Fannie Hardy Eckstorm saw the family’s wilderness existence as antithetical to the commercialization and industrialization of their times, but the Fowlers themselves adapted easily when water power, coal, and oil upended the woods economy around them. Their family history traces the energy revolutions that shaped the northern forest and our country. Mike Prokosch is an organizer, popular economics educator, and hiker who lives in Boston.

Growth And Yield Of A Tropical Rain Forest In The Brazilian Amazon 13 Years After Logging, J Nm Silva, J Op De Carvalho, J Do Ca Lopes, B F. De Almeida, D Hm Costa, L C. De Oliveira, Jerome K. Vanclay, J P. Skovsgaard

Professor Jerome K Vanclay

Successive inventories of a silvicultural experiment in terra firme rain forest within the Tapajós National Forest in the Brazilian Amazon are examined to provide guidelines for operational forest management on a sustainable basis. The experiment was logged in 1979 without additional silvicultural treatment, but included protection from further logging and encroachment (‘log and leave’). Thirty-six permanent plots established in 1981 were remeasured in 1987 and 1992. Logging changed the canopy structure and altered the composition of the stand, reducing the number of shade tolerant species and stimulating light demanding species. There was a net increase in stem number and stand …

A Case Study Approach For Assessing Operational And Silvicultural Performance Of Whole-Tree Biomass Harvesting In Maine, Charles E. Coup

Electronic Theses and Dissertations

In the Northeastern United States, re-emerging markets for renewable energy are driving interest in increasing the harvest of underutilized biomass material from Maine’s forest. These markets may offer opportunities for forest managers to implement silvicultural treatments that have previously been foregone due to their high cost. However, many operational challenges arise in using current harvesting systems to harvest biomass material profitably while simultaneously achieving silvicultrual objectives. This research uses a case study approach to analyzing some of the possibilities and obstacles in implementing biomass harvesting in Maine. The first three studies investigate a factorial silvicultural and operational case study involving …

Saving Special Places: Trends And Challenges With Protecting Public Lands [Outline], Robert B. Keiter

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

7 pages.

Includes bibliographical references

"Robert B. Keiter, Wallace Stegner Professor of Law, University of Utah, S.J. Quinney College of Law"

A Comparison Of Logging And Fire Disturbance On Biophysical Attributes Of The Northern Jarrah Forest, Alexander W. Watson

Theses: Doctorates and Masters

Ecologically sustainable forest management (ESFM) serves dual purposes: 1) to ensure the conservation of biodiversity, and 2) in production forest (forest managed for the production of timber and woodchips), to maintain an economically viable timber industry in perpetuity. A central axiom of ESFM is that any manipulation of a forest ecosystem should emulate the `natural' disturbance patterns of the forest. This is based on the assumption that forest communities have evolved with endogenous disturbance regimes and will be better able to cope if exogenous disturbance (e.g., logging) remains within natural levels and spatial and temporal bounds of intensity. The objective …

Slides: Long Term Forest Management: Creating A Forest Management Plan, Don Johnson

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Don Johnson, Forest Land Improvement, Inc., NH town forests

51 slides

Slides: White Mountain Apache, Paul Declay, Jr.

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Paul DeClay, Jr., Tribal Forest Manager, White Mountain Apache, AZ

34 slides

Slides: Ecotrust Forests, Bettina Von Hagen

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Bettina Von Hagen, Ecotrust Forests, OR

25 slides

Forest Clearcutting And Site-Preparation On A Saline Soil In East Texas: Impacts On Water Quality, Matthew W. Mcbroom, Mingteh Chang, Alexander K. Sayok

Faculty Publications

Three 0.02 hectare plot-watersheds were installed on a saline soil in the Davy Crockett National Forest near Apple Springs, Texas. Each plot was installed with an H-flume, FW-1 automatic water level recorder, Coshocton N-1 runoff sampler, and two storage tanks. One watershed was undisturbed forested and served a control, one was clearcut without any site-preparation, and the third was clearcut, V-blade sheared, windrowed, and vegetation regrowth was prevented for the first 2 years. A total of 274 storms were recorded during the four-year study period, 1989-1992. Average annual sediment losses for the study period were 55, 197, and 1,530 kilograms …

Hydrologic Recovery Of Aspen Clearcuts In Northwestern Alberta, R H. Swanson, R L. Rothwell

Aspen Bibliography

A 3-year study of evapotranspiration from aspen clearcuts 1 to 14 years of age indicated the following: (1) The annual evapotranspiration from 1- to 5-year-old clearcuts ranges from 0 to 143 mm less than a mature forest on the same site. Evapotranspiration is highly dependent upon the amount of precipitation. (2) These effects can vanish in as few as 2 years with low precipitation (300 mm) or persist for 40 to 45 years with high precipitation (600 mm). These results were confirmed by data from the Spring Creek experimental watershed. Simulated water yield increase from the harvested catchment averaged 16 …

Logging In Alaska's Boreal Forest: Creation Of Grasslands Or Enhancement Of Moose Habitat, William B. Collins, Charles C. Schwartz

Aspen Bibliography

Timber harvest in Alaska’s boreal forest can greatly enhance or severely reduce moose (Alces alces) habitat quality, depending on forest management objectives, timing and methods of harvest, and post-logging site preparation. Overstory removal associated with timely exposure of mineral soil favors establishment of early successional hardwoods important as moose browse. A combination of clear-cutting and soil scarification on mesic sites mimics fire, windfall, and fluvial erosion, important natural forces that drive regeneration of the boreal forest. When cut during dormancy, aspen (Populus tremuloides) and balsam poplar (P. balsamifera) Regenerate prolifically by root and stump …

Reflections From The Seventh American Forest Congress: Some Thoughts For National Forest Management, William R. Bentley

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

21 pages.

Contains endnotes and references.

Aspen Management For The 21st Century: Proceedings Of A Symposium, S. Navratil, P.B. Chapman

Aspen Bibliography

No abstract provided.

Ecosystem Carbon Following Aspen Harvesting In The Upper Great Lakes, David H. Alban, D.A. Perala

Aspen Bibliography

No abstract provided.

Antidegradation And Nonpoint Source Pollution In The West, H. Michael Anderson

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

31 pages.

Contains references.