Social and Behavioral Sciences Commons^™

Production, Best Management Practices, And Market Impacts Of Forest Biomass Harvest And Collection In The Mid-Atlantic Region, William E. Smith

Graduate Theses, Dissertations, and Problem Reports

Time motion studies were conducted at five mid-Atlantic sites that spanned various operations in West Virginia, Ohio, and Pennsylvania. The harvest systems included integrated harvests where chips were produced in the forest, roundwood systems where only roundwood was produced, and a centralized chipping system. The study collected overall productivity and machine utilization data at the various harvesting operations. The cost per green ton of woody biomass ranged from $18.46 to $39.8 resulting in an average of $30.33 among the five systems. Hauling had the highest average price per green ton at $9.10, while loading had the lowest at $1.73 per …

Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus, Paola A. Giron-Carson

Scripps Senior Theses

We are experiencing a climate crisis that must be confronted with strategic mitigation. Pomona College contributes to the climate crisis through its emissions for which there is a baseline record. However there is no baseline record of the climate mitigation currently performed by the trees on Pomona’s campus through carbon storage. This study seeks to determine a current baseline quantity of carbon stored and sequestrated by Pomona’s trees as well as possible courses of climate mitigation for Pomona College to take. Initial information gathering was conducted through interviews with several stakeholders. This study was conducted using data collected prior to …

Forests As Fuel? An Investigation Of Biomass’ Role In A Just Energy Transition, Brianna Cunliffe

Honors Projects

Although wood pellet biomass corporations frame their recent rapid growth as a victory for “green energy”, troubling evidence of their adverse impacts on climate and environmental justice calls for rigorous investigation of these claims. Contextualizing biomass within the envirotechnical regimes that have created industrial ‘sacrifice zones’ in BIPOC low-income communities in the US South, this paper recharacterizes it as an innovation within oppressive regimes. It further critiques carbon accounting frameworks that designate biomass as renewable despite its greater emissions per capita than coal and carbon debts created by deforestation that could take centuries to rectify. Biomass pellet production plants, cited …

Essays On Agricultural Commodity Processing, Bin Li

Dissertations and Theses Collection (Open Access)

This dissertation investigates two important issues in agricultural commodity processing: (i) biomass commercialization; that is, converting organic waste into a saleable product, from economic and environmental perspectives, and (ii) optimal procurement portfolio design using multiple suppliers and spot market, and the impact of by-product introduction on this optimal portfolio.

The first chapter examines the economic implications of biomass commercialization from the perspective of an agri-processor that uses a commodity input to produce both a commodity output and biomass. We characterize the value of biomass commercialization and perform sensitivity analysis to investigate how spot price uncertainty (input and output spot price …

Resilience, Capacity, And Place: A Comparative Case Study Of Small-Scale Forest-Based Biomass Energy Development In California’S Sierra Nevada Mountain Range Communities, Rebecca E. Cashero

Cal Poly Humboldt theses and projects

The buildup of fuels resulting from decades of fire suppression in California's Sierra Nevada mountains has made its dense forests vulnerable to high severity stand replacing wildfires. Local governments in many rural forest-dependent communities view biomass energy production as a method to restore forest health via fuel removal and waste disposal. Forest-based biomass energy facilities have the potential to be compatible with protecting water resources, habitat restoration, forest resilience, and achieving climate standards, while also enhancing regional economic stability. However, while an increasing number of communities and organizations throughout California are advocating for local small-scale renewable energy from forest-based woody …

Interdependencies Between Energy, The Environment, And Stakeholder Choices, Saleh Nur Muhammad Al Mamun

Economics ETDs

This dissertation contributes to the field of energy economics by expanding the knowledge of energy stakeholders’ decisions amid the interdependence of energy and environmental policies. I analyze three specific energy development decisions from multiple stakeholders’ perspectives. Chapter 2 introduces a broader state-level policymakers’ decision on renewable portfolio standards (RPS). The renewable portfolio standards is a state-mandated obligation that requires electric load-serving entities to distribute a certain percentage of electricity generated from renewable sources. I investigate the public preferences of RPS for residents in New Mexico in 2017. I find that households are willing to pay for an increase in RPS …

Lidar And Machine Learning Estimation Of Hardwood Forest Biomass In Mountainous And Bottomland Environments, Bowei Xue

Graduate Theses and Dissertations

Light detection and ranging (lidar) has been applied in various forest applications, such as to retrieve forest structural information, to build statistical models for identification of tree species, and to monitor forest growth. However, despite significant progress in these areas, the choice of regression approach and parameter tuning remains an ongoing critical question. This study focused on choosing the right spatial generalization level to transform lidar point clouds to 2D images which can be further processed by mature image processing and pattern recognition approaches. It also compared the prediction ability of popular machine learning algorithms applied to aboveground forest biomass …

Exploring The Potential To Penetrate The Energy Market For Tennessee-Produced Switchgrass, Fnu Shikha

Masters Theses

The need for alternative sources of energy which are renewable and environmentally friendly has focused attention on the development of biomass-based energy sector. Lignocellulosic energy crops such as switchgrass are considered potential feedstock for biomass-based energy because of wide range adaptability in conjunction with lower input requirements. However, the costs of the collection, storage, and transportation of the low density feedstock from farm to conversion facilities in the switchgrass supply chain pose a major barrier to the development of bioenergy sector.

The objective of the present study is to determine the optimal logistics configuration for Tennessee-produced switchgrass to penetrate the …

Bioplastics: Reinventing Conventional Plastic Production And The Future Of Biodegradable Materials, Ruby Roca

2014 Student Theses

The use of plastic is prevalent in our society due to the increasing amount of new products entering the market that need some form of packaging that is solid enough yet disposable. From everything to yogurt containers to diapers, plastic containers are a large part of our society’s consumption culture and often goes unnoticed. However, people point to plastic water bottles and containers as the only culprit, and often times forget that almost all packaging contains some form of plastic. For my thesis I want to examine how the use of plastics has increased waste material, considering that it takes …

Application Of An Imputation Method For Geospatial Inventory Of Forest Structural Attributes Across Multiple Spatial Scales In The Lake States, U.S.A., Ram K. Deo

Dissertations, Master's Theses and Master's Reports - Open

Credible spatial information characterizing the structure and site quality of forests is critical to sustainable forest management and planning, especially given the increasing demands and threats to forest products and services. Forest managers and planners are required to evaluate forest conditions over a broad range of scales, contingent on operational or reporting requirements. Traditionally, forest inventory estimates are generated via a design-based approach that involves generalizing sample plot measurements to characterize an unknown population across a larger area of interest. However, field plot measurements are costly and as a consequence spatial coverage is limited. Remote sensing technologies have shown remarkable …

Feasibility And Co-Benefits Of Biomass Co-Firing: Case In Utah, Bibek Paudel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research examines the physical and economic feasibility of 5% biomass co-firing in the coal-fired power plants of Utah. Transportation models is used to find out the physical feasibility of 5% biomass co-firing, as well as locate the supply zone for each power plant that would minimize the transportation cost. Additional cost required for 5% biomass co-firing and the economic benefits associated with biomass co-firing are calculated. The additional cost required for 5% biomass co-firing is estimated to be $34.84 million. Previous studies on CO₂ emission reduction are used to compute the economic benefit attain from CO₂ reduction …