Open Access. Powered by Scholars. Published by Universities.®

Environmental Studies Commons™

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 151 - 163 of 163

Full-Text Articles in Environmental Studies

Climate And Bark Beetle Effects On Forest Productivity — Linking Dendroecology With Forest Landscape Modeling, Alec M. Kretchun, E. Louise Loudermilk, Robert M. Scheller, Matthew Hurteau, Soumaya Belmecher Jan 2016

Climate And Bark Beetle Effects On Forest Productivity — Linking Dendroecology With Forest Landscape Modeling, Alec M. Kretchun, E. Louise Loudermilk, Robert M. Scheller, Matthew Hurteau, Soumaya Belmecher

Environmental Science and Management Faculty Publications and Presentations

In forested systems throughout the world, climate influences tree growth and aboveground net primary productivity (ANPP). The effects of extreme climate events (i.e., drought) on ANPP can be compounded by biotic factors (e.g., insect outbreaks). Understanding the contribution of each of these influences on growth requires information at multiple spatial scales and is essential for understanding regional forest response to changing climate. The mixed conifer forests of the Lake Tahoe Basin, California and Nevada, provide an opportunity to analyze biotic and abiotic influences on ANPP. Our objective was to evaluate the influence of moisture stress (climatic water deficit, CWD) and …


Localized Ecological And Educational Effects Of Environmental Service-Learning In Portland, Oregon, Steven Matthew Braun Jun 2015

Localized Ecological And Educational Effects Of Environmental Service-Learning In Portland, Oregon, Steven Matthew Braun

Dissertations and Theses

Environmental service-learning is an intentional educational experience(s) wherein learners engage in meaningful activities designed to serve the environment. Environmental service-learning activities vary according to their learning and service goals and include ecomanagement, persuasion, legal action, economic action and political action. The purpose of this mixed methods research was to explore the ecological and educational impacts of grades 6-12 environmental education, with special attention to environmental service-learning throughout Portland, Oregon.

Ecological impacts considered restoration and conservation outcomes of several environmental service-learning programs including plant communities, soils, litter removal and trail maintenance. Educational outcomes considered aspects of environmental literacy including locus of …


Academic Incoherence: The State Of Sustainability Literature Today, Anthony Philip Stine May 2015

Academic Incoherence: The State Of Sustainability Literature Today, Anthony Philip Stine

Student Research Symposium

The traditional tools associated with researching and presenting findings in contemporary sustainability literature include very little representation on moral forms of discourse. In the context of social sustainability this is problematic due to the inherently normative nature of the discourse. A citation analysis reveals very little representation of Christian moral environmental claims in the sustainability literature today despite growing concern amongst Christians for the state of the environment today.


Bicyclists' Uptake Of Traffic-Related Air Pollution: Effects Of The Urban Transportation System, Alexander Y. Bigazzi Oct 2014

Bicyclists' Uptake Of Traffic-Related Air Pollution: Effects Of The Urban Transportation System, Alexander Y. Bigazzi

Dissertations and Theses

While bicyclists and other active travelers obtain health benefits from increased physical activity, they also risk uptake of traffic-related air pollution. But pollution uptake by urban bicyclists is not well understood due to a lack of direct measurements and insufficient analysis of the determinants of exposure and ventilation (breathing). This knowledge gap impedes pollution-conscious transportation planning, design, and health impact assessment.

The research presented in this dissertation generates new connections between transportation system characteristics and pollution uptake by bicyclists. The primary research questions are: 1) how do urban bicyclists' intake and uptake of air pollution vary with roadway and travel …


Framing Transportation Planning Pedagogy For Sustainability Generalists, Beth Sweeney, Ann Scheerer, Vicki Elmer Jan 2014

Framing Transportation Planning Pedagogy For Sustainability Generalists, Beth Sweeney, Ann Scheerer, Vicki Elmer

TREC Final Reports

This paper describes a pilot graduate sustainable transportation course developed at the University of Oregon to provide hands-on project experience for students studying sustainability. New approaches to sustainability and transportation pedagogies will provide a galvanizing force for tomorrow’s graduates, who must respond to concerns about climate change and the environment, social equity, and an uncertain economy. They will require an aptitude for both technical skills and collaborative leadership and communication skills. The course was guided by a framework founded in five themes from the literature on sustainability education and transportation planning and engineering education: leading with sustainability’s cornerstones of people, …


Assessing Cultural Ecosystem Services Using Gis-Based Landscape Values Mapping. Case Study: Olympic Peninsula Human Ecology Mapping Project, Diane Besser, Rebecca J. Mclain, Lee Cerveny, David Banis Oct 2013

Assessing Cultural Ecosystem Services Using Gis-Based Landscape Values Mapping. Case Study: Olympic Peninsula Human Ecology Mapping Project, Diane Besser, Rebecca J. Mclain, Lee Cerveny, David Banis

Institute for Sustainable Solutions Publications and Presentations

This presentation focuses on the Olympic Peninsula mapping project objectives:

  • Develop and test a method for mapping sociocultural values at a Bioregional scale
  • Test techniques for analyzing spatialized sociocultural values data
  • Explore ways to integrate spatialized sociocultural values into forest management planning


The View From The Table: An Analysis Of Participant Reactions To Community-Based Dialogues On Food And Justice, Jennifer Turner Jul 2013

The View From The Table: An Analysis Of Participant Reactions To Community-Based Dialogues On Food And Justice, Jennifer Turner

Dissertations and Theses

While Portland, Oregon's sustainable food movement wins accolades for explicitly situating itself in opposition to the industrialized global food system, it often fails to address systems of oppression that are reproduced within the alternative agri-food movement itself. This demonstrated aversion towards the messy, complex, contingent nature of the social world reflects larger processes of "de-politicization" of the overall sustainability agenda, which leads to the favoring of technological and/or spatial solutions that may undermine the social equity and justice dimensions of the "triple bottom line." This thesis focuses on an action research project involving a series of community dialogues that provided …


Community Controlled Forests, Carbon Sequestration And Redd+: Some Evidence From Ethiopia, Abebe D. Beyene, Randall Bluffstone, Alemu Mekonnen Apr 2013

Community Controlled Forests, Carbon Sequestration And Redd+: Some Evidence From Ethiopia, Abebe D. Beyene, Randall Bluffstone, Alemu Mekonnen

Economics Faculty Publications and Presentations

REDD+ (Reduced Emissions from Deforestation and Forest Degradation, “plus” afforestration) is a tool that supports forest carbon-enhancing approaches in the developing world in order to mitigate and hopefully reverse climate change. A key issue within REDD+ is to appropriately bring in the almost 25% of developing country forests that are effectively controlled by communities. Many authors have discussed the social aspects of appropriateness, but there is limited analysis of the actual carbon sequestration potential of better-managed community controlled forests (CCFs). Drawing on an analytical framework that relies heavily on the common property and social capital literatures, our paper contributes to …


Beyond Adaptive Capacity Checklists: Examining The Construction Of Capacity In Mexico City And Santiago, Patricia Romero-Lankao, Sara Hughes, Angélica Rosas-Huerta, Roxana Borquéz, Melissa Haeffner Nov 2012

Beyond Adaptive Capacity Checklists: Examining The Construction Of Capacity In Mexico City And Santiago, Patricia Romero-Lankao, Sara Hughes, Angélica Rosas-Huerta, Roxana Borquéz, Melissa Haeffner

Environmental Science and Management Faculty Publications and Presentations

Cities are vulnerable to a range of environmental hazards that are likely to be exacerbated by climate change: floods, droughts, poor air quality, and heat islands are a few examples. Assessments of this vulnerability often include an evaluation of a city’s adaptive capacity, or its potential to respond to changes in the frequency or severity of environmental hazards as well as its ability to take advantage of or mitigate these changes. For example, at the city (e.g., institutional) level, a common metric of adaptive capacity is the availability and effective use of information. In many cases, a city would receive …


Factors For Improved Fish Passage Waterway Construction, David N. Sillars, Hamid Moradkhani, Nicholas Tymvios, Trevor D. Smith Jun 2011

Factors For Improved Fish Passage Waterway Construction, David N. Sillars, Hamid Moradkhani, Nicholas Tymvios, Trevor D. Smith

TREC Final Reports

Streambeds are important fish passageways in Oregon; they provide for the necessary habitats and spawning cycles of a healthy fish population. Oregon state law requires that hydraulic structures located in water properly provide fish passage. Increasingly stringent state and federal regulations apply to these fish passageways, and designers must become more cognizant of conditions over a range of flows to accommodate fish movement and avoid expensive structural failure of these passageways. Fish passage structures are built when roads cross streambeds and may include culverts, or bridges. When these structures are built, the streambeds are re-created using a technique called “roughened …


Riparian Wetland Response To Livestock Exclusion In The Lower Columbia River Basin, Sarah Ann Holmen Jan 2011

Riparian Wetland Response To Livestock Exclusion In The Lower Columbia River Basin, Sarah Ann Holmen

Dissertations and Theses

The purpose of this study was to examine the characteristics of riparian plant communities along a succession gradient of livestock exclusion in the Lower Columbia River Basin (LCRB). Livestock exclusion is an example of a passive restoration practice throughout the region. However, few studies have focused on the effects of livestock or livestock exclusion on riparian wetland ecosystems in this area. Two passive restoration sites, 3 and 13 years since livestock exclusion, and a control site with a continued livestock grazing presence were examined. It was hypothesized that native plant species richness would be lower in the excluded wetlands than …


Climate Change And Globalization In The Americas: Case Studies Of Mitigation And Adaptation, Mary Finley-Brook, Melissa Haeffner, Charmaine Heslop-Thomas, Elma Montaña, Leah Sprain Aug 2010

Climate Change And Globalization In The Americas: Case Studies Of Mitigation And Adaptation, Mary Finley-Brook, Melissa Haeffner, Charmaine Heslop-Thomas, Elma Montaña, Leah Sprain

Environmental Science and Management Faculty Publications and Presentations

Robin Leichenko and Karen O‘Brien have proposed ―double exposure‖ as a conceptual framework to demonstrate how processes of globalization and global environmental change (GEC) redefine risk and encourage new, interrelated responses to social and ecological transitions (O‘Brien and Leichenko, 2000; Leichenko and O'Brien, 2008). In particular, the concept encourages researchers and policy makers to consider interplay between global climate change and globalization and how this is expressed unevenly across space. After reviewing the ways double exposure has been used in the literature, we consider four case studies to investigate the utility of the framework for analyzing and understanding climate change …


Nesting Like Birds, Teaching Like Spiders: Emerging Visions In U.S. Higher Education For Biocultural Sustainability And Ecological Literacy Education, Ariana Marta Francesca Kramer Jan 2006

Nesting Like Birds, Teaching Like Spiders: Emerging Visions In U.S. Higher Education For Biocultural Sustainability And Ecological Literacy Education, Ariana Marta Francesca Kramer

Dissertations and Theses

Sustainability education is a growing field still being defined. It draws from environmental education, but includes social justice and economic equity alongside environmental health. International efforts to define the parameters of sustainability education at the university level have called for interdisciplinary approaches that emphasize culture. However, in the United States most programs concerned with sustainability follow in the footsteps of environmental studies with a focus on science and public policy.

Seven interdisciplinary master's programs in sustainability education were reviewed as potential models for how the larger university system might approach teaching for sustainability. Document analysis was used to compare program …