Index Catalog // ScholarsArchive@OSU

Measuring and Modeling the Structure of Coniferous Trees with Point Clouds Data

Creator:: Fang, Rong
Abstract:: Coniferous trees are a major North American crop that has been intensively managed for its commercial value, while also serving as critical habitat for abundant wildlife and as carbon sinks. Having diverse functions, North American temperate coniferous forests have become a research hotspot for numerous scientific studies aiming to integrate...
Resource Type:: Dissertation
Full Text:: . Title: Measuring and Modeling the Structure of Coniferous Trees with Point Clouds Data

Historical forest succession and disturbance dynamics in Coastal Douglas-fir forests in the southern western Cascades of Oregon

Creator:: Merschel, Andrew G.
Abstract:: Coastal Douglas-fir (Pseudotsuga menziesii var menziesii) forests are extensive west of the crest of the Cascade Mountains in Oregon and Washington and are renowned for their productivity, biodiversity, and the ecosystem services they provide. Increasing wildfire activity in recent years including the extensive 2020 Labor Day fires, and a warming...
Resource Type:: Dissertation
Full Text:: . Merschel for the degree of Doctor of Philosophy in Forest Ecosystems and Society presented on September 17

Comparison of total dose to individuals from temperate and arid environments

Creator:: Elmore, Brockway F., II
Abstract:: This paper analyzes the decision-making process utilized in temperate environments for building nuclear facilities and whether it was going to be applicable to nuclear facilities built in arid environments. To answer this question, the total dose to individuals from arid and temperate environments were compared using RESRAD-OFFSITE and changing the...
Resource Type:: Masters Thesis
Full Text:: Radioecological Research Group for their insight and guidance. CONTRIBUTION OF AUTHORS

Wall-to-Wall Forest Mapping in Southeast and Southcentral Alaska: A New Application of the Gradient Nearest Neighbor Approach

Creator:: Irvine, Daniel R.
Abstract:: Boreal and temperate biomes host nearly half of the earth’s forested ecosystems. The temperate rainforests of the Pacific coast of North America constitute nearly half of all temperate rainforests on earth. Along the northern extent of this region, the perhumid and sub-polar rainforests of southeast and southcentral Alaska are among...
Resource Type:: Capstone Project
Full Text:: generally more precise and less biased in the boreal forest biome of the western Kenai Peninsula

Modeling Tree Size Distribution in Young Douglas-fir Plantations to Facilitate Tree List Generation for Growth Model Initiation at Different Ages and under Differing Silvicultural Regimes

Creator:: Uranga, Martin
Abstract:: Two key challenges emerge when initiating individual-tree growth models for bare ground or very young plantations. Both involve the need for a list of individual trees with known or predicted size and known expansion factor (number of trees per unit of area represented by each tree). In the case of...
Resource Type:: Dissertation
Full Text:: are not typically measured or knowable in forest operations. From a modeling perspective, these

Genetic Characterization and Bioclimatic Modeling of the Three Varieties of Leptographium wageneri (Cause of Black Stain Root Disease) in the Western USA

Creator:: Choi, Daram
Abstract:: Black stain root disease (BSRD) is a vascular wilt disease of conifers caused by three varieties of the native, insect-vectored fungal pathogen, Leptographium wageneri (L. wageneri var. wageneri, L. wageneri var. ponderosum, and L. wageneri var. pseudotsugae). Although morphological, physiological, and ecological characteristics differ among the three varieties of L....
Resource Type:: Masters Thesis
Full Text:: . Due to these reasons, MaxEnt is the proper modeling for forest pathogens because it takes occurrence

Tracing Sources of Soil Organic Matter Through Time, Across Ecosystems, and Down Soil Profiles

Creator:: Gallo, Adrian Carlos
Abstract:: Soils contain the largest pool of carbon that is actively cycling on human timescales, leading many to view soils as a natural climate solution with multiple co-benefits. The field of soil science is rapidly evolving, but without a unified understanding of soil carbon dynamics. This dissertation leverages two distinct long-term...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Sustainable Forest Management presented on 12 October 2022

Drivers and Impacts of a Recent Annual Grass Invasion: Ventenata dubia and Fire in the Inland Northwest

Creator:: Tortorelli, Claire M.
Abstract:: Biological invasions threaten native biodiversity, alter ecosystem function, and are a major cause of economic losses across the planet. The most impactful invaders alter disturbance regimes and initiate state shifts to outside the historical range of variability of the ecosystem. Concern for ecological and economic losses has prompted a rapid...
Resource Type:: Dissertation
Full Text:: . Tortorelli for the degree of Doctor of Philosophy in Forest Ecosystems and Society presented on May 10

Climate Change and Management Considerations for the Boreal Forest Zone

Creator:: Habeeb, Gabrielle A.
Abstract:: The boreal forest zone is located in the cool, high latitudes of the earth and represents approximately one third of the world’s remaining forested area. Maintaining the functional capacity of boreal forests is of global importance as they will both affect and be affected by climate change. Boreal forests can...
Resource Type:: Capstone Project
Full Text:: boreal forest contains the largest amount of surface freshwater of any biome (Gauthier et al. 2015

Red tree voles in fragmented forests

Creator:: Piasecki, Jason T.
Abstract:: The red tree vole (Arborimus longicaudus) is an arboreal Arvicoline rodent endemic to conifer dominated forests of western Oregon and northwestern California. While commonly associated with old forests, often inhabiting stands over 80 years old, tree voles have also been found in young forests between 20 and 80 years old....
Resource Type:: Masters Thesis
Full Text:: Jason T. Piasecki for the degree of Master of Science in Sustainable Forest Management presented on 7

ScholarsArchive@OSU

Measuring and Modeling the Structure of Coniferous Trees with Point Clouds Data

Historical forest succession and disturbance dynamics in Coastal Douglas-fir forests in the southern western Cascades of Oregon

Comparison of total dose to individuals from temperate and arid environments

Wall-to-Wall Forest Mapping in Southeast and Southcentral Alaska: A New Application of the Gradient Nearest Neighbor Approach

Modeling Tree Size Distribution in Young Douglas-fir Plantations to Facilitate Tree List Generation for Growth Model Initiation at Different Ages and under Differing Silvicultural Regimes

Genetic Characterization and Bioclimatic Modeling of the Three Varieties of Leptographium wageneri (Cause of Black Stain Root Disease) in the Western USA

Tracing Sources of Soil Organic Matter Through Time, Across Ecosystems, and Down Soil Profiles

Drivers and Impacts of a Recent Annual Grass Invasion: Ventenata dubia and Fire in the Inland Northwest

Climate Change and Management Considerations for the Boreal Forest Zone

Red tree voles in fragmented forests

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