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Articles 1 - 12 of 12
Full-Text Articles in Forest Sciences
Investing In Maine Research Infrastructure: Sustainable Forest Bioproducts, Michael Eckardt, Stephen Shaler, Hemant P. Pendse, Adriaan R. P. Van Heiningen, Robert G. Wagner
Investing In Maine Research Infrastructure: Sustainable Forest Bioproducts, Michael Eckardt, Stephen Shaler, Hemant P. Pendse, Adriaan R. P. Van Heiningen, Robert G. Wagner
University of Maine Office of Research Administration: Grant Reports
The University of Maine, the University of Southern Maine, several baccalaureate institutions in the state, along with other federal, state and local public, private, and non-profit institutions will collaborate to create the Forest Bioproducts Research Institute (FBRI) at the University of Maine. The vision of the FBRI is to advance understanding about the scientific underpinnings, system behavior, and policy implications for the production of forest-based bioproducts that meet societal needs for materials, chemicals, and fuels in an economically and ecologically sustainable manner.
The research plans Integrate three themes. They are (1) forest sustainability modeling of life cycle assessment, (2) integrated …
Explore It! Building The Next Generation Of Sustainable Energy Researchers, Darrell W. Donahue, David J. Neivandt
Explore It! Building The Next Generation Of Sustainable Energy Researchers, Darrell W. Donahue, David J. Neivandt
University of Maine Office of Research Administration: Grant Reports
This award will establish an REU Site at the University of Maine. The program will engage 10 undergraduates each year for three years in a 10-week summer research experience. This REU site will leverage a focus area represented by the newly established University of Maine Forest Bio-products Research Institute (FBRI). Undergraduate students will conduct research advancing their knowledge of sustainable forest bio-products and will gain a detailed understanding of one of the thematic elements of the research effort as well as a broad understanding of all areas, specifically: 1) sustainable and life cycle analysis; 2) solids extraction/modification; 3) process control …
The Dandy Scroll, Fall 2009, University Of Maine Pulp And Paper Foundation
The Dandy Scroll, Fall 2009, University Of Maine Pulp And Paper Foundation
General University of Maine Publications
The Fall 2009 issue of The Dandy Scroll newsletter produced by the University of Maine Pulp and Paper Foundation.
Tb202: Composition And Biomass Of Forest Floor Vegetation In Experimentally Acidified Paired Watersheds At The Bear Brook Watershed In Maine, Peter Kenlan, G. B. Wiersma, A. S. White, I. J. Fernandez
Tb202: Composition And Biomass Of Forest Floor Vegetation In Experimentally Acidified Paired Watersheds At The Bear Brook Watershed In Maine, Peter Kenlan, G. B. Wiersma, A. S. White, I. J. Fernandez
Technical Bulletins
The percentage cover (abundance), frequency of occurrence, biomass, species richness, and species diversity of understory herbs was measured on a paired watershed ecosystem in eastern Maine, USA. This paired watershed site (Bear Brook Watershed in Maine, BBWM) has had the West Bear Brook Watershed treated bi-monthly with granular ammonium sulfate at a rate of 28.8 kg S ha-1 yr-1 and 25.2 kg N ha-1 yr-1 since 1989. East Bear Brook Watershed serves as the reference site. More than 100 plots were randomly located across the two watersheds. The data suggest that there is generally a lower frequency of occurrence of …
Influence Of Silvicultural Treatment, Site Characteristics, And Land Use History On Native And Nonnative Forest Understory Plant Composition On The Penobscot Experimental Forest In Maine, Elizabeth Bryce
Electronic Theses and Dissertations
This study investigates forest understory plant diversity and composition in managed and unmanaged stands within the context of a long-term silvicultural experiment in the Acadian Forest of Maine. I examined the effects of silvicultural intensity and past land use on understory plant species diversity and composition. Silvicultural treatments include three variants of the selection system, three variants of the shelterwood system, modified and fixed diameter-limit cutting, and an unregulated harvest. Two types of unmanaged stands were studied: a continuously forested natural area and secondary forest stands on old fields. Chapter 1 presents analysis of understory plant diversity and composition in …
The Chemistry Of Acidic Soils In Humid, Temperate Forested Watersheds With Emphasis On Phosphorus, Aluminum And Iron, Micheal Sanclements
The Chemistry Of Acidic Soils In Humid, Temperate Forested Watersheds With Emphasis On Phosphorus, Aluminum And Iron, Micheal Sanclements
Electronic Theses and Dissertations
Acidification of soils can result from natural processes (i.e. pedogenesis) and from atmospherically derived sulfur (S) and nitrogen (N) which originate from anthropogenic emissions. Research on the effects of acidification has typically focused on base cations, N and aluminum (Al). The Bear Brook Watershed in Maine (BBWM) (a long-term, whole-watershed acidification experiment) demonstrated increased episodic stream export of Al, iron (Fe), and phosphorus (P) in the treated watershed, suggesting that acidification can also affect P. This research evaluates (a) the physical and chemical distribution of P, (b) mechanisms controlling soil P accumulation, mobilization, and availability in humid, temperate forested ecosystems, …
Maine Forest Landowner Study, James Acheson
Maine Forest Landowner Study, James Acheson
University of Maine Office of Research Administration: Grant Reports
One of the most important questions for resource management is, under what conditions will users conserve the resources on which their livelihood depends? This project studies the forest management strategies of different types of forest landowner groups in Maine. Some owners are doing a far better job of managing their forests sustainably than are others. The quality of management practices is a crucial issues at this time, because the rapid depletion of forests is a world-wide problem. Maine is a particularly good laboratory to study forest management issues because it is the most heavily forested state in the country, and …
The Dandy Scroll, Winter 2009, University Of Maine Pulp And Paper Foundation
The Dandy Scroll, Winter 2009, University Of Maine Pulp And Paper Foundation
General University of Maine Publications
The Winter 2009 issue of The Dandy Scroll newsletter produced by the University of Maine Pulp and Paper Foundation.
The Influence Of Hot Water Extraction On Physical And Mechanical Properties Of Osb, Juan Jacobo Paredes Heller
The Influence Of Hot Water Extraction On Physical And Mechanical Properties Of Osb, Juan Jacobo Paredes Heller
Electronic Theses and Dissertations
The finite reserves of petroleum are driving renewed interest in technologies that allow for sustainable production of energy. There are a wide variety of technologies with well-developed infrastructure like the oriented strand board (OSB) industry, which could be used as launch point for developing biorefineries. The effects of hot water extraction (HWE) on two hardwood species (Acer rubrum, Populus tremuloides) and softwood species (mixture of southern yellow pine, Tsuga canadensis) were studied. The HWE resulted in a weight loss (WL) that increased as the severity factor (SF) was extended. Hardwood had the biggest WL values at equivalent extraction conditions. The …
The Influences Of Conventional And Low Density Thinning On Leaf Area, Growth, And Growing Space Relationships Of Eastern White Pine (Pinus Strobus L.), Christopher Henry Guiterman
The Influences Of Conventional And Low Density Thinning On Leaf Area, Growth, And Growing Space Relationships Of Eastern White Pine (Pinus Strobus L.), Christopher Henry Guiterman
Electronic Theses and Dissertations
Despite the commercial importance and widespread management of eastern white pine {Pinus strobus L.) in the Northeast, surprisingly little is known about the effects of thinning on even-aged stand development. To address this, patterns of leaf area, bole form, volume growth, and growth efficiency - defined as volume increment per unit leaf area - were examined over a 17-year period within a thinning study in central Maine designed to compare the conventional B-line and low density thinning regimes. At the tree-level, many of the effects of thinning were as expected. Heavier, low density thinning resulted in significantly larger and deeper …
Development Of A Ligno-Cellulosic Polymeric And Reinforced Sheet Molding Compound (Smc), Ryan Harris Mills
Development Of A Ligno-Cellulosic Polymeric And Reinforced Sheet Molding Compound (Smc), Ryan Harris Mills
Electronic Theses and Dissertations
The overall objective of this dissertation was to study the surface energy and acid-base characteristics of natural fibers, glass, a wood extract, and a sheet molding compound prepreg to facilitate the fabrication of totally synthetic and partially renewable sheet molding compounds (SMCs). The water absorption and micro-mechanical performance of the totally synthetic and partially renewable SMC composites were compared through accelerated aging experiments. Reinforcing glass sized for polyester, bast kenaf fibers, hot water extract from Acer rubrum, and a dicyclopentadiene modified polyester prepreg were analyzed by inverse gas chromatography to evaluate and help predict how the various components may interact …
A Case Study Approach For Assessing Operational And Silvicultural Performance Of Whole-Tree Biomass Harvesting In Maine, Charles E. Coup
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 …