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Sustainability Commons

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Natural Resources Management and Policy

Portland State University

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Articles 1 - 12 of 12

Full-Text Articles in Sustainability

Data From: Forest Density Intensifies The Importance Of Snowpack To Growth In Water-Limited Pine Forests, Kelly E. Gleason, John B. Bradford, Anthony W. D’Amato, Shawn Fraver, Brian J. Palik, Michael A. Battaglia Jun 2020

Data From: Forest Density Intensifies The Importance Of Snowpack To Growth In Water-Limited Pine Forests, Kelly E. Gleason, John B. Bradford, Anthony W. D’Amato, Shawn Fraver, Brian J. Palik, Michael A. Battaglia

Environmental Science and Management Datasets

Research Study
Warming climate and resulting declines in seasonal snowpack have been associated with drought stress and tree mortality in seasonally snow-covered watersheds worldwide. Meanwhile, increasing forest density has further exacerbated drought stress due to intensified tree-tree competition. Using a uniquely detailed dataset of population-level forest growth (n=2495 sampled trees), we examined how inter-annual variability in growth relates to snow volume across a range of forest densities (e.g., competitive environments) in sites spanning a broad aridity gradient across the United States. Forest growth was positively related to snowpack in water-limited forests located at low latitude, and this relationship was intensified …


Mapping Meaningful Places On Washington’S Olympic Peninsula: Toward A Deeper Understanding Of Landscape Values, Lee Cerveny, Kelly Biedenweg, Rebecca J. Mclain Jun 2017

Mapping Meaningful Places On Washington’S Olympic Peninsula: Toward A Deeper Understanding Of Landscape Values, Lee Cerveny, Kelly Biedenweg, Rebecca J. Mclain

Institute for Sustainable Solutions Publications and Presentations

Landscape values mapping has been widely employed as a form of public participation GIS (PPGIS) in natural resource planning and decision-making to capture the complex array of values, uses, and interactions between people and landscapes. A landscape values typology has been commonly employed in the mapping of social and environmental values in a variety of management settings and scales. We explore how people attribute meanings and assign values to special places on the Olympic Peninsula (Washington, USA) using both a landscape values typology and qualitative responses about residents’ placerelationships. Using geographically referenced social values data collected in community meetings (n …


Strengthening The Resiliency Of Dryland Forest-Based Livelihoods In Ethiopia And South Sudan: A Review Of Literature On The Interaction Between Dryland Forests, Livelihoods And Forest Governance, Steven Lawry, Rebecca J. Mclain, Habtemariam Kassa Jan 2015

Strengthening The Resiliency Of Dryland Forest-Based Livelihoods In Ethiopia And South Sudan: A Review Of Literature On The Interaction Between Dryland Forests, Livelihoods And Forest Governance, Steven Lawry, Rebecca J. Mclain, Habtemariam Kassa

Institute for Sustainable Solutions Publications and Presentations

Dry forests account for nearly half of the world’s tropical and subtropical forests and provide a multitude of ecological services. They contribute to hydrological cycles and livestock and wildlife provisioning; and host pollinators and wild plants. They are also important ecological zones for dryland agriculture and pastoral livelihood strategies that support hundreds of millions of people around the world. Dry forests cover large areas and their biomass stores carbon and helps mitigate climate change. Dry forests are particularly important to people in Africa. They provide wood for construction and energy, contribute to local diets with wild fruits, vegetables, nuts, edible …


Tree Cover Mapping For Assessing Greater Sage-Grouse Habitat In Eastern Oregon, Eric M. Nielsen, Matthew D. Noone Feb 2014

Tree Cover Mapping For Assessing Greater Sage-Grouse Habitat In Eastern Oregon, Eric M. Nielsen, Matthew D. Noone

Institute for Natural Resources Publications

We used a predictive model to map canopy cover of vegetation over seven feet in height ("tall woody vegetation") at 30-meter resolution over nearly 29 million acres within and adjacent to the range of the greater sage-grouse in Oregon (Figure 1). Texture measures computed at various resolutions from color-infrared aerial photography provided the main source of predictor data used to produce the map. Canopy cover was treated as a categorical variable using six cover classes: absent (cover class C0), present at less than 4% (C1), 4 – 10% (C2), 10 – 20% (C3), 20 – 50% (C4), and 50% and …


Effects Of Water Development On Arid Land Freshwater Ecosystems, Angela L. Strecker Oct 2013

Effects Of Water Development On Arid Land Freshwater Ecosystems, Angela L. Strecker

Environmental Science and Management Faculty Publications and Presentations

This presentation focuses on the Columbia Basin Project


Ecosystem Services: The Making Of A Metaphor We Live (?) By, Richard B. Norgaard Feb 2012

Ecosystem Services: The Making Of A Metaphor We Live (?) By, Richard B. Norgaard

Systems Science Friday Noon Seminar Series

What started as a humble metaphor to help us think about our relation to nature has become integral to how we are addressing the future of humanity and the course of biological evolution. The metaphor of nature as a stock that provides a flow of services is insufficient for the difficulties we are in or the task ahead. Indeed, combined with the mistaken presumption that we can analyze a global problem within a partial equilibrium economic framework and reach a new economy project-by-project without major institutional change, the simplicity of the stock-flow framework blinds us to the complexity of the …


Woody Biomass Use Trends, Barriers, And Strategies: Perspectives Of Us Forest Service Managers, Shiloh Sundstrom, Max Nielsen-Pincus, Cassandra Moseley, Sarah Mccaffery Jan 2012

Woody Biomass Use Trends, Barriers, And Strategies: Perspectives Of Us Forest Service Managers, Shiloh Sundstrom, Max Nielsen-Pincus, Cassandra Moseley, Sarah Mccaffery

Environmental Science and Management Faculty Publications and Presentations

The use of woody biomass is being promoted across the United States as a means of increasing energy independence, mitigating climate change, and reducing the cost of hazardous fuels reduction treatments and forest restoration projects. The opportunities and challenges for woody biomass use on the national forest system are unique. In addition to making woody biomass usage pencil out, national forest managers must also navigate substantial public engagement and forest planning processes that add to the complexity of fostering woody biomass use opportunities on the national forest system. We report on the results of a survey of US Forest Service …


Interview With Jim Labbe, Portland Audubon Society, 2011, Jim Labbe Mar 2011

Interview With Jim Labbe, Portland Audubon Society, 2011, Jim Labbe

All Sustainability History Project Oral Histories

Interview of Jim Labbe by Tony Smith on March 11th, 2011.

The interview index is available for download.


Interview With Michael Burri, Us Forest Service, 2010 (Audio), Michael Burri May 2010

Interview With Michael Burri, Us Forest Service, 2010 (Audio), Michael Burri

All Sustainability History Project Oral Histories

Interview of Michael Burri by Jeff Pullen-Sayles at Sandy, Oregon on May 9th, 2010.

The interview index is available for download.


Interview With Steve Cohen, Planning & Sustainable Development, 2009 (Audio), Steve Cohen Jul 2009

Interview With Steve Cohen, Planning & Sustainable Development, 2009 (Audio), Steve Cohen

All Sustainability History Project Oral Histories

Interview of Steve Cohen by Chris Stephens at Ecotrust Building, Portland, Oregon on July 28th, 2009.

The interview index is available for download.


Bridges And Barriers To Developing And Conducting Interdisciplinary Graduate-Student Team Research, Max Nielsen-Pincus, Wayde Cameron Morse, Jo Ellen Force, J. D. Wulfhorst Jan 2007

Bridges And Barriers To Developing And Conducting Interdisciplinary Graduate-Student Team Research, Max Nielsen-Pincus, Wayde Cameron Morse, Jo Ellen Force, J. D. Wulfhorst

Environmental Science and Management Faculty Publications and Presentations

Understanding complex socio-environmental problems requires specialists from multiple disciplines to integrate research efforts. Programs such as the National Science Foundation’s Integrative Graduate Education and Research Traineeship facilitate integrated research efforts and change the way academic institutions train future leaders and scientists. The University of Idaho and the Tropical Agricultural Research and Higher Education Center in Costa Rica collaborate on a joint research program focusing on biodiversity conservation and sustainable production in fragmented landscapes. We first present a spectrum of integration ranging from disciplinary to transdisciplinary across seven aspects of the research process. We then describe our experiences and lessons learned …


Ecological Science And Sustainability For The 21st Century, Margaret A. Palmer, Emily S. Bernhardt, Elizabeth A. Chornesky, Scott L. Collins, Andrew P. Dobson, Clifford S. Duke, Barry D. Gold, Robert B. Jacobson, Sharon E. Kingsland, Rhonda H. Kranz, Michael J. Mappin, M. Luisa Martinez, Florenza Micheli, Jennifer L. Morse, Michael L. Pace, Mercedes Pascual, Stephen S. Palumbi, Oj Reichman, Alan R. Townsend, Monica G. Turner Feb 2005

Ecological Science And Sustainability For The 21st Century, Margaret A. Palmer, Emily S. Bernhardt, Elizabeth A. Chornesky, Scott L. Collins, Andrew P. Dobson, Clifford S. Duke, Barry D. Gold, Robert B. Jacobson, Sharon E. Kingsland, Rhonda H. Kranz, Michael J. Mappin, M. Luisa Martinez, Florenza Micheli, Jennifer L. Morse, Michael L. Pace, Mercedes Pascual, Stephen S. Palumbi, Oj Reichman, Alan R. Townsend, Monica G. Turner

Environmental Science and Management Faculty Publications and Presentations

Ecological science has contributed greatly to our understanding of the natural world and the impact of humans on that world. Now, we need to refocus the discipline towards research that ensures a future in which natural systems and the humans they include coexist on a more sustainable planet. Acknowledging that managed ecosystems and intensive exploitation of resources define our future, ecologists must play a greatly expanded role in communicating their research and influencing policy and decisions that affect the environment. To accomplish this, they will have to forge partnerships at scales and in forms they have not traditionally used. These …