Life Sciences Commons^™

Automated Tree Mortality Detection Using Ubiquitously Available Public Data, Michael T. Huggins

Master's Theses

Understanding the dynamic interplay between fire severity, topography, and tree mortality, is crucial for predicting future forest dynamics and enhancing resilience against climate change-induced wildfire regimes. This thesis develops a multi-sensor approach for automated estimation of tree mortality, then applies it to examine trends in tree mortality over a six-year period across a fire affected study site in the Trinity River basin in Northern California. The Random Forest model uses publicly available USGS 3D Elevation Program Lidar (3DEP) and NAIP imagery as inputs and is likely to be easily adaptable to other landscapes. The model had a Receiver Operating Characteristic …

The Study Of Tree Biomass Calculation By Comparing Partial Harvest Method With The Allometric Equations Method, Kanlayarat Jantawong, Titinan Pothong

Journal of Bioresource Management

This study aimed to investigate the effective of partial harvest method used for tree biomass estimation. Such method was analyzed for the correlation in compare with invented allometric equations. The advantages and disadvantages of those methods were discussed. The significantly difference between estimation methods were analyzed. As a result, tree biomass calculated by the Brown’s allometric equation produced highest results, followed by the partial harvest method, Tsutsumi’s, Chave’s and Pothong’s equations respectively. The selected allometric equations showed the positive correlation with partial harvest method. The highest positive correlation was found between the partial harvest method and both equation of Chave …

Nebraska Forest Action Plan - 2020, John Erixson

Nebraska Forest Service: Publications

Nebraska’s Forest Action Plan – 2020 represents a multiyear effort by Nebraska Forest Service staff to ensure trees continue to play a role in the lives of all Nebraskans. It includes assessments in locations considered to be priority forested areas; the strategies that will be implemented to address the challenges described in the preceding paragraph; and, how the agency’s resources will coalesce to bring the state’s trees and forests to a healthy and sustainable condition. Additionally, this plan maintains flexibility that allows for response to changes in the natural environment, state or federal policy, and the priorities of constituents and …

The Impacts Of Prescribed Burning And Mechanical Thinning On Insect Communities In The Arkansas Ozarks, Aaron P. Tormanen

Theses and Dissertations from 2020

Insects are important in woodland ecosystems due to their role as pollinators and as prey for bats. My research investigated the relationships between forest management, vegetation, and insects in the Ozark National Forest in Arkansas. I selected 30 stands burned at varying frequencies in the last 12 years. Twelve of these stands were burned and mechanically thinned, 12 were only burned, and 6 were untreated. I deployed blacklight traps and malaise traps in each stand monthly from mid-March to mid- November 2019. Over 42,391 insects were collected, and Lepidoptera was the most abundant order. Insects were dried, weighed, and identified …

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2017, Leah English, Jennie Popp, Wayne Miller

Research Reports and Research Bulletins

Agriculture and associated agricultural activities are major contributors to the Arkansas economy. Agriculture is defined as the sum of agricultural production and processing activities, unless otherwise specified, and includes crop and animal production and processing, agricultural support industries, forestry and forest products, and textile goods. Agriculture contributes to the economy through direct agricultural production and value-added processing, and also leads to economic activity in other parts of the economy. This report is the eleventh in a series of reports examining agriculture’s economic contribution to the Arkansas economy. The total economic contribution of agriculture (direct, indirect, and induced effects) on value …

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

Timber Talk, Vol. 56, No. 3, September 2018

Timber Talk: Nebraska Forest Industry Newsletter

In This Issue:

Lumber Market Reports

Hardwood Lumber Prices

American Logger Council Seeking Great Plains Chapter

Woody Biomass Heating Assistance Available

Bureau of Indian Affairs Preparing for Walnut Timber Sale

2018 Nebraska Forestry Festival (October 27)

Forest Industry Spotlight: Much Ado about Residue

Trading Post

Timber Sales

Soil Organic Matter Distribution In A Douglas-Fir-Tanoak Forest, Humboldt County, California, Hollie A. Ernest

Cal Poly Humboldt theses and projects

Soil carbon (C) affects the active gases in the atmosphere, nutrient cycling, and diversity of flora and fauna. Soil organic matter (SOM) is partially comprised of C, and a widely-accepted ratio of 0.58 organic carbon (OC) to organic matter (OM) is used to measure soil C on a landscape scale. However, this ratio varies according to vegetation, depth, hydrology, and may lead to miscalculations of soil C and SOM estimates. Soil C and SOM are inherently complex and it is not completely understood which environmental factors have the most influence in their formation, which occurs on a time scale of …

Quantifying Effects Of Quaking Aspen Silvicultural Treatments On Aspen Regeneration And Residual Growth, Philip W. Williams

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Many quaking aspen (Populus tremuloides) populations are in decline across the western United States, a trend likely driven by ongoing climate change and past management that has led to increased competition with conifers. Restoration of aspen is a management goal potentially achievable through active forest management, but treatment effects on regeneration and residual growth have not been comprehensively studied. This project examined if removal of competing conifers altered aspen regeneration density, ungulate browsing, and residual adult aspen diameter growth using a control-impact study design. Sampling occurred at the Burnt Fork (ten treatments, four controls) and Bandy (seven treatments, four controls) …

Nebraska Statewide Forest Action Plan - 2015, Scott Josiah, John Erixson

Nebraska Forest Service: Publications

The Nebraska Forest Action Plan identifies strategic goals based on national objectives collaboratively crafted by both the National Association of State Foresters and the USFS State & Private Forestry Program. The strategic goals and actions identified in this document serve as a blueprint for focusing private, state and federal resources in areas of Nebraska where they will be most effective.

Nebraska Statewide Forest Resource Assessment & Strategy - 2010, Scott Josiah, John Erixson

Nebraska Forest Service: Publications

This Assessment relies heavily on the input from our partners. To complete the Assessment, we bolstered our own forest resource data with publicly available data from a variety of sources, including the National Land Cover Dataset, USFS Spatial Analysis Project, U.S. Census Bureau, Nebraska Game and Parks Commission, Nebraska Department of Roads, Nebraska Natural Resources Districts and input from many partners. Combined, this information provided us with valuable insights about the nature, complexity and value of our forest resources, and helped us identify priority forest areas across the state.

Using the information from the Assessment, we developed strategic goals based …

Conservation Implications Of A Marbled Salamander, Ambystoma Opacum, Metapopulation Model, Ethan B. Plunkett

Masters Theses 1911 - February 2014

Amphibians are in decline globally and a significantly greater percentage of ambystomatid salamander species are in decline relative to other species; habitat loss contributes significantly to this decline. The goals of this thesis is to better understand extinction risk in a marbled salamander (ambystoma opacum) population and how forestry effects extinction risk. To achieve this goal we first estimated an important life history parameter (Chapter 1) then used a metapopulation model to estimate population viability and determine what aspects of their life history put them most at risk (Chapter 2) and finally predicted extinction risk in response to hypothetical forestry …

Mp754: A Literature Review Of The Effects Of Intensive Forestry On Forest Structure And Plant Community Composition At The Stand And Landscape Levels, Erika L. Rowland, Alan S. White, William H. Livingston

Miscellaneous Publications

The effects of intensive forest management on forest structure and plant community composition are not well documented, particularly with respect to the forests in the Northeast. This review presents a six-part synthesis of the literature. The first section considers the effects of intensive forestry practices within the context of naturally regenerated stands. The second section reviews the changes associated with the planting of conifers in softwood sites, as well as those previously occupied by hardwood and mixed-wood stands. The third examines the impacts of intensive management specifically on bryophytes and lichens. The fourth section discusses changes in dead organic matter …

Greening Connecticut Cities And Towns, Managing Public Trees And Community Forests, Glenn D. Dreyer, Robert M. Ricard

Other Publications and Reports

No abstract provided.

Forest Stand Dynamics, Update Edition, Chadwick Dearing Oliver, Bruce A. Larson

Yale School of the Environment Other Publications

This book describes the various growth patterns of forests from a mechanistic point of view. Its purpose is to help silviculturists, forest managers, and ecologists understand and anticipate how forests grow and respond to intentional manipulations and natural disturbances. Demands on the forest have been increasing for timber production, wildlife habitat, water protection, recreation, and protection from fires, insects, and diseases. These demands have created an emphasis on prescribing site-specific treatments for individual stands of trees, rather than treating broad areas uniformly

Mp716: New Forestry In Eastern Spruce-Fir Forests: Principles And Applications To Maine, Robert S. Seymour, Malcolm L. Hunter Jr.

Miscellaneous Publications

Eastern North America's spruce-fir forests have a unique ecological and human history which is reflected in their current vegetation, ownership patterns, and forest management practices. Furthermore, there are important differences within the region between the true boreal forest and the sub-boreal Acadian forest; this paper emphasizes the Acadian forest. Applying New Forestry to this region will require a modified approach which we outline by describing three basic principles. First, to provide the landscape context for New Forestry, we propose a triad of forest land allocation in which reserves and plantations would co-exist, surrounded by and embedded within a landscape managed …

Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.

Maine Collection

Spruce Budworm in Maine: The End of the Outbreak: Biological Conditions in 1986, 1987, and 1988, and a Look at the Future

by Henry Trial, Jr., Insect and Disease Management Division

Technical Report No. 28

Maine Forest Service, Dept. of Conservation, Augusta, Maine, October 1989.

Contents: Introduction / Biological Conditions in 1986, 1987, and 1988 / Control Activities / Forest Conditions-1986 to 1988 and a Look at the Future / Spray Operations and Forecast of Conditions in Quebec and New Brunswick, 1986-1988 / The Future of Budworm in the Region and in Maine / List of Figures / List of …

Tb131: Tree Improvement In The Northeast: Interim Summary And Recommendations For Selected Species, K. K. Carter, D. H. Dehayes, M. E. Demeritt Jr., R. T. Eckert

Technical Bulletins

This publication of the regional research project NE-27, Genetics and Improvement of Northeastern Trees, is intended to provide an overview of current knowledge regarding genetic variation and tree improvement practices for eleven common tree species in the Northeast. The authors have attempted to summarize the information that will be most useful to forest managers, administrators, and field foresters in this region. Our intent is to be informative, not exhaustive.

Proceedings : A Forest Based Economy - Carrying A Tradition Into The Future, Blaine House Conference On Forestry (December 6-7, 1984)

Maine Collection

Proceedings : A Forest Based Economy - Carrying A Tradition Into the Future

Blaine House Conference on Forestry (December 6-7, 1984)

Department of Conservation, State House Station 22, Augusta, Maine 04333, August 1986.

Contents: Table of Contents / Letter of Transmittal / The Forest 2020--Visions Of A Sustainable Forest / Forestry Resurvey: What Does It Say? How Can We Use It? / Can We Improve Maine's Timber Supply? / Atmospheric Deposition And Forests Of The Northeast / A National Perspective: What Is Maine's Competitive Niche? / The Future of Hardwood Markets / The Future of Softwood Markets / The State …

Spruce Budworm In Maine, 1910-1976: Infestations And Control, David Weed

Maine Collection

Spruce Budworm in Maine, 1910-1976: Infestations and Control

compiled by David Weed, Maine Forest Service, Maine Department of Conservation, 1977.

Contents: I. Introduction, II. Infestation Chronology, III. Defoliation 1910-18 to 1976, IV. Spraying History, V. Mothflight Data, VI. Aircraft Employed, VII. Aircraft: Photo Essay

Studies On The Causes Of Tree Distribution In A Forest Type In The Dismal Swamp National Wildlife Refuge, Thomas A. Janszen

Biological Sciences Theses & Dissertations

Vegetational composition and environmental parameters were analyzed in a forest type of the Dismal Swamp. A 0.5 ha forest stand was divided into 200 5 x 5 meter contiguous quadrats and the tree size classes were precisely mapped. Fifty soil samples were analyzed for texture, pH, and major nutrients. A topographic map was constructed with precision to 0.01 ft. Analysis of variance tests showed non-randomness to exist in soil texture and nutrient content while homogeneity tests showed non-randomness in distribution of some woody species. Factor analysis indicated no significant correlations between soil quality, topography, and woody species. Findings indicate that …

Forestry Bulletin No. 22: Silviculture Of Southern Upland Hardwoods, Laurence C. Walker

Forestry Bulletins No. 1-25, 1957-1972

"Upland hardwood types occur throughout the forests of the southern United States. Sometimes deciduous species intermingle with pines to form mixed conifer-broadleaf types; other times hardwood types are interspersed with pine types; depending upon soil, physiography, past land use, and fire."

Forestry Bulletin No. 21: Diseases Of Forest Trees And Forest Products, A. F. Verrall

Forestry Bulletins No. 1-25, 1957-1972

This bulletin covers the roles and types of diseases and fungi found in forest trees and products. It also discusses principles of disease prevention and control.

Forestry Bulletin No. 20: A Short History Of Forest Conservation In Texas, 1880-1940, Robert S. Maxwell, James W. Martin

Forestry Bulletins No. 1-25, 1957-1972

"This short history of the development of forest conservation in Texas is intended primarily for the general reader. The study has concentrated on the early history of the conservation movement, dating from the beginning of commercial lumbering in the state, approximately 1880, to about 1940 and World War II."

Forestry Bulletin No. 18: Geography Of The Southern Forest Region, Laurence C. Walker, G. Loyd Collier

Forestry Bulletins No. 1-25, 1957-1972

"The Southern Forest Region, as here discussed, comprises the area east of the Texas and Oklahoma prairies and south of the Missouri, Ohio, and Potomac rivers, plus an extension along the Atlantic coast to central New Jersey."

Forestry Bulletin No. 17: Films And Filmstrips On Forestry, Nelson T. Samson

Forestry Bulletins No. 1-25, 1957-1972

"Motion picture films and filmstrips in forestry and related fields are available from many sources in America. This publication is an attempt to provide for foresters and others interested in such aids a convenient means for selecting materials to meet their particular needs."

Forestry Bulletin No. 16: Silviculture Of Slash Pine, Laurence C. Walker, Harry V. Wiant Jr.

Forestry Bulletins No. 1-25, 1957-1972

An analysis of the reproduction, management and destructive agents in relation to the Slash Pine.

Forestry Bulletin No. 15: Silviculture Of The Minor Southern Conifers, Laurence C. Walker

Forestry Bulletins No. 1-25, 1957-1972

An analysis of many conifers, including pine, cedar and cypress.

Forestry Bulletin No. 14: Practical Point-Sampling, Ellis V. Hunt Jr., Robert D. Baker

Forestry Bulletins No. 1-25, 1957-1972

"Mr. L.R. Grosenbaugh (1952) introduced point-sampling to American foresters, citing Mr. W. Bitterlich's earlier work in Europe. Primarily it is, he said, 'A rapid method of sampling tree basal area per acre . . . '"

Forestry Bulletin No. 12: Pine Seedling Survival And Growth Response To Soils Of The Texas Post-Oak Belt, J. J. Stransky, M. Victor Bilan

Forestry Bulletins No. 1-25, 1957-1972

An analysis of the methods and materials in relation to pine seedling survival, including a section on results and discussion.