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A Gis Approach For Estimating Optimal Sites For Grid-Connected Photovoltaic (Pv) Cells In Nebraska, Tomotoshi Funabashi Dec 2011

A Gis Approach For Estimating Optimal Sites For Grid-Connected Photovoltaic (Pv) Cells In Nebraska, Tomotoshi Funabashi

Department of Environmental Studies: Undergraduate Student Theses

In the context of rising energy concerns and increased spotlight on solar energy, this study examines and draws attention to the state of mid potential sunlight. The purpose of this study is to estimate the optimal sites for grid-connected photovoltaic cells in Nebraska, which is ranked 13th nationally in terms of insolation potential. Five factors – insolation potential, adjacency to roads, accessibility to grid, topography, and acreage – are examined with the use of Geographic Information System (GIS). Insolation potential was quantitatively analyzed by averaging, plotting, and interpolating the 20 years of datasets recoded at 28 weather stations of High …


A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear Dec 2011

A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear

Department of Environmental Studies: Undergraduate Student Theses

Obesity is a growing threat to America’s health. The national rate of obesity is 34% (Health Consequences, 2011), and Lincoln, Nebraska is not far behind that trend at 20.7% (BRFSS, 2011). Increasing physical activity is one way to reduce weight gain, (Edwards, 2008) and further studies show that small changes to the built environment can induce people to use alternative and more active forms of transportation such as biking, walking, and public transportation (Edwards, 2008; Zheng, 2008). The 2040 Comprehensive Plan for Lincoln, NE includes language to create a more walkable community. The proposal is to redevelop existing areas within …


Empathy-Based Conservation: An Interdisciplinary Approach To Conservation Policy And Decision-Making, Kaitlyn Delashmutt Dec 2011

Empathy-Based Conservation: An Interdisciplinary Approach To Conservation Policy And Decision-Making, Kaitlyn Delashmutt

Department of Environmental Studies: Undergraduate Student Theses

In the late 20th century, neuroscientists in Italy discovered a neuron in the brain capable of mentally mimicking the emotions derived from the actions of others (Rizzolatti and Craighero, 2004). It is the process that makes your elbow ache when someone else knocks their elbow on the counter or the uncontrollable smile that creeps up when someone smiles at you. No questions asked, people intuitively sense what others are feeling. The old school of thought was that humans deduced through logic and reason the actions of others and interpreted the emotions through a rational process (Carew et al, 2008). …


Mapping Potential Crp Land And Determining Crp Profitability In Lancaster County, Jamie Pesek Dec 2011

Mapping Potential Crp Land And Determining Crp Profitability In Lancaster County, Jamie Pesek

Department of Environmental Studies: Undergraduate Student Theses

Annually 17 tons of soil is lost due to the erosion of agriculture land. A majority of the soil lost is fertile topsoil, which can render the land unproductive. The Conservation Reserve Program (CRP) was enacted to reduce the high erosion rates on agriculture land by giving landowners a monetary incentive to let their land lay idle and allow the soil to regenerate. Although there is awareness of the benefits of CRP, little effort has been put toward delineating CRP eligible land. In this project, Geographical Information Systems were used to map CRP eligible land in Lancaster County, Nebraska based …


Avian Species Abundance In Response To Recreational Trail Use, Carrie A. Wencel Dec 2011

Avian Species Abundance In Response To Recreational Trail Use, Carrie A. Wencel

Department of Environmental Studies: Undergraduate Student Theses

Studies have indicated that non-consumptive outdoor recreation may affect wildlife. Thus, as the nation increases interest in outdoor recreation, data suggests the effect on wildlife will also increase. Previous studies indicate that as disturbance to wildlife increases, both avian species richness will decrease. Knowing how to anticipate effects on native species when planning and managing recreational areas is important in order to both provide for human desires and ensure the least impact to local species diversity.

The goal of this project was to observe and compare avian species richness and diversity between selected trail sites within Shevlin Park, Bend, Oregon …


Factors The Cause Growth And Development In The City Of Lincoln, Ne, Kaylene Tegtmeier Dec 2011

Factors The Cause Growth And Development In The City Of Lincoln, Ne, Kaylene Tegtmeier

Department of Environmental Studies: Undergraduate Student Theses

This qualitative study looks at what factors may contribute to the outward growth and development of the city of Lincoln, Nebraska. The two main factors the study discusses are the Lincoln Public School planners and their placement of schools in the city, and the “American dream” of the people, looking at where the people of Lincoln want to be living throughout the city and what some of their daily habits are. This study also discusses some of the main visions of the city of Lincoln’s 2040 Comprehensive Plan how the plan’s ambitions may affect the two factors looked at in …


Droughtscape- Fall 2011, Kelly Smith Oct 2011

Droughtscape- Fall 2011, Kelly Smith

Droughtscape, Quarterly Newsletter of NDMC, 2007-

Drought Preparedness Community Options

Drought Likely to Persist, Intensify Across South

Database Will Help Planners Find Options

Impacts: Ag Losses, Fire, Water Restrictions

NDMC Welcomes International Visitors

New Drought Impact Reporter Online

Sim-Drought, Available Now at Select Agencies


Effects Of Herbicides And Grazing On Floristic Quality Of Native Tallgrass Pastures In Eastern South Dakota And Southwestern Minnesota, Alexander J. Smart, Matthew J. Nelson, Peter J. Bauman, Gary E. Larson Oct 2011

Effects Of Herbicides And Grazing On Floristic Quality Of Native Tallgrass Pastures In Eastern South Dakota And Southwestern Minnesota, Alexander J. Smart, Matthew J. Nelson, Peter J. Bauman, Gary E. Larson

Great Plains Research: A Journal of Natural and Social Sciences

Historic herbicide use and grazing have influenced natural diversity and quality of native pasturelands in the Great Plains. Floristic quality assessments are useful to assist agencies in prioritizing conservation practices to enhance native grasslands. The objective of this study was to determine the effects of past land-use practices on the floristic quality of remnant native pastures in eastern South Dakota and southwestern Minnesota. Floristic quality assessments were conducted on 30 native pastures and categorized by past management practices (herbicide application and grazing intensity). Mean coefficient of conservatism (C) and floristic quality index (FQI) were calculated for each site~Results showed that …


Droughtscape- Summer 2011, Kelly Smith Jul 2011

Droughtscape- Summer 2011, Kelly Smith

Droughtscape, Quarterly Newsletter of NDMC, 2007-

New NDMC Website

Drought May Improve in Southeast and Southwest

Impacts Summary: Fire, Crop Loss and More

International Activities

NDMC Launches Ranch Planning Tool

Serving Data to Order

Workshop Builds Drought Planning Community


The Distribution And Life Cycle Of Alliaria Petiolata In Lincoln, Nebraska, Caleb Pharris Jul 2011

The Distribution And Life Cycle Of Alliaria Petiolata In Lincoln, Nebraska, Caleb Pharris

Department of Environmental Studies: Undergraduate Student Theses

Alliaria petiolata (Garlic Mustard) is a biennial alien invasive plant species of the Brassicacea family. It is responsible for displacing native plant species throughout North America and its management has proven to be extremely difficult. Recently several populations of Alliaria petiolata have been discovered in southwestern Lincoln, Nebraska. The spread of Alliaria petiolata is a concern for natural resource managers and the general public. Due to the difficulty of its control, Alliaria petiolata is capable of creating monocultures which diminish the aesthetic value of an ecosystem. While most commonly found in the understory of hardwood forests, it is capable of …


Developing A Sustainable Business Plan At The Shopping Center Of Southpointe Mall In Lincoln, Nebraska, Jessica Marie Hanson Jul 2011

Developing A Sustainable Business Plan At The Shopping Center Of Southpointe Mall In Lincoln, Nebraska, Jessica Marie Hanson

Department of Environmental Studies: Undergraduate Student Theses

This project consists of creating sustainable business plans for a group of diverse retail stores at the mall of SouthPointe Pavilions in Lincoln, Nebraska. A series of interviews took place with five managers at the businesses including: Scheels, Old Chicago, Bed Bath and Beyond, Von Maur, and Barnes and Noble. The questions were based around five different topics including: Technological, Environment, Socio-Cultural, Economic, and Public Policy. The Technological area includes processes with the product (or service) that occur before it arrives, during, and after it is sold. The Public Policy area includes if the business has an environmental policy, how …


Building A Sustainable Network Of Drought Communities, Deborah J. Bathke, Nicole Wall, Jeff Nothwehr, Kelly Helm Smith, Donna L. Woudenberg, Tonya K. Bernadt, Crystal Bergman, Joseph P. Robine, Michael Hayes, Mark Svoboda, Lisa Darby, Roger S. Pulwarty, The National Drought Mitigation Center, The National Integrated Drought Information System Program Office Jun 2011

Building A Sustainable Network Of Drought Communities, Deborah J. Bathke, Nicole Wall, Jeff Nothwehr, Kelly Helm Smith, Donna L. Woudenberg, Tonya K. Bernadt, Crystal Bergman, Joseph P. Robine, Michael Hayes, Mark Svoboda, Lisa Darby, Roger S. Pulwarty, The National Drought Mitigation Center, The National Integrated Drought Information System Program Office

HPRCC Personnel Publications

The first step in managing large-scale (national) collaborations and networks is to consider and address how a group and a potential partnership may match up (Luther, 2005). To explore this concept and many other collaborative concepts, the National Integrated Drought Information System (NIDIS) hosted a workshop, “Building a Sustainable Network of Drought Communities,” which was facilitated by the National Drought Mitigation Center (NDMC) in Chicago, IL, June 8-9, 2011.

The workshop explored current examples of good communication and lessons learned within the realm of drought planning in order to address a future NIDIS Engaging Preparedness Communities (EPC) working group that …


The Green, Blue And Grey Water Footprint Of Crops And Derived Crop Products, Mesfin Mekonnen, Arjen Y. Hoekstra May 2011

The Green, Blue And Grey Water Footprint Of Crops And Derived Crop Products, Mesfin Mekonnen, Arjen Y. Hoekstra

Daugherty Water for Food Global Institute: Faculty Publications

Abstract. This study quantifies the green, blue and grey water footprint of global crop production in a spatially-explicit way for the period 1996–2005. The assessment improves upon earlier research by taking a high-resolution approach, estimating the water footprint of 126 crops at a 5 by 5 arc minute grid. We have used a grid-based dynamic water balance model to calculate crop water use over time, with a time step of one day. The model takes into account the daily soil water balance and climatic conditions for each grid cell. In addition, the water pollution associated with the use of nitrogen …


National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 1: Main Report, Mesfin Mekonnen, Arjen Y. Hoekstra May 2011

National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 1: Main Report, Mesfin Mekonnen, Arjen Y. Hoekstra

Daugherty Water for Food Global Institute: Faculty Publications

This study quantifies and maps the water footprints of nations from both a production and consumption perspective and estimates international virtual water flows and national and global water savings as a result of trade. The entire estimate includes a breakdown of water footprints, virtual water flows and water savings into their green, blue and grey components. The main finding of the study can be summarized as:

The global water footprint in the period 1996-2005 was 9087 Gm3/yr (74% green, 11% blue, 15% grey). Agricultural production contributes 92% to this total footprint.

About one fifth of the global water footprint relates …


National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 2: Appendices, Mesfin Mekonnen, Arjen Y. Hoekstra May 2011

National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 2: Appendices, Mesfin Mekonnen, Arjen Y. Hoekstra

Daugherty Water for Food Global Institute: Faculty Publications

Contents

Appendix I. The water footprint of national production (Mm3/yr)

Appendix II. Virtual-water flows related to trade in crop, animal and industrial products, per country (Mm3/yr)

Appendix III. International virtual-water flows per product category (Mm3/yr)

Appendix IV. National water saving related to trade in agricultural and industrial products per country (Mm3/yr)

Appendix V. Global water saving related to trade in agricultural and industrial products, per product (Mm3/yr)

Appendix VI. The average water footprint per ton of commodity per country, weighted based on origin (WF* in m3/ton)

Appendix VII. …


Drought-Ready Communities: A Guide To Community Drought Preparedness, Mark D. Svoboda, Kelly Smith, Melissa Widhalm, Donna Louise Woudenberg, Cody L. Knutson, Meghan Sittler, Jim Angel, Mike Spinar, Mark Shafer, Renee Mcpherson, Heather Lazrus May 2011

Drought-Ready Communities: A Guide To Community Drought Preparedness, Mark D. Svoboda, Kelly Smith, Melissa Widhalm, Donna Louise Woudenberg, Cody L. Knutson, Meghan Sittler, Jim Angel, Mike Spinar, Mark Shafer, Renee Mcpherson, Heather Lazrus

National Drought Mitigation Center: Publications

Table of Contents

Introduction to Drought-Ready Communities........................................................ 4

Section 1. Getting Started: Invite the Community to Participate, Commit to the Process...................... 7

1.1 Establish a leadership team that includes individuals with responsibility for monitoring, communication, and implementation .............................................. 7

1.2 Identify stakeholders or groups in the community that may need additional resources to participate in the Drought-Ready Communities process .................... 8

1.3 Include government agencies and regulators ....................................... 9

1.4 Develop a contact list ................................................................ 9

1.5 Gather community perceptions of drought .................................................. 10

Section 2. Information Gathering: Understand Water Sources and Uses, Develop a Drought History . 11

2.1 …


Understanding Bioprospecting: Can Indigenous Populations Benefit From The Search For Pharmaceuticals In Areas Of High Biodiversity, Emily Schwindt May 2011

Understanding Bioprospecting: Can Indigenous Populations Benefit From The Search For Pharmaceuticals In Areas Of High Biodiversity, Emily Schwindt

Department of Environmental Studies: Undergraduate Student Theses

Bioprospecting is a controversial issue, and anthropologists and other scientists are quick to take sides. The idea of large corporations pumping money into conservation and development programs, while developing what could be the latest life-saving drug simply sounds too good to be true, and often times is. However, if all parties work together and proceed with caution, these benefits could become more than a fantasy. Looking at case studies from Costa Rica, India, South Africa and Panama this paper attempts to find patterns among successful bioprospecting agreements and note shortcomings and identify risks. This information will be used to suggest …


Improving Energy Sustainability In Pound Hall, Craig Adams May 2011

Improving Energy Sustainability In Pound Hall, Craig Adams

Department of Environmental Studies: Undergraduate Student Theses

This research project deals with improving energy sustainability in Pound Hall dormitory located on the University of Nebraska at Lincoln’s (UNL) city campus. An investigation on the current energy usage of Pound Hall showed that its energy rates worsened between the years of 2009 and 2010. These combined (electricity, steam, and water) energy rates were compared with those of the newly renovated Othmer Hall to emphasize the lack of sustainability in the older dormitory. In order to improve Pound Hall’s energy rates, an energy benefit analysis of implementing a green roof was performed. Having a green roof on this dormitory …


Extent Of Gully Erosion In An Agricultural Field In Northeastern Nebraska At Section 35 Township 29 North Range 1 West In Cedar County, Crystal Starkel May 2011

Extent Of Gully Erosion In An Agricultural Field In Northeastern Nebraska At Section 35 Township 29 North Range 1 West In Cedar County, Crystal Starkel

Department of Environmental Studies: Undergraduate Student Theses

My thesis project examined a gully within Section 35 Township 29 North Range 1 West. This gully has been noticed for five years and has grown substantially in those five years. The extent and causes of gully erosion were examined by considering the soil, the climate, the land management history, by measuring the gully physically, by using GIS, and by using an economic support tool was estimate soil loss. Appropriate recommendations were developed to reduce gully erosion.


21rst Century Educational Farmstead, Trevis Carmichael May 2011

21rst Century Educational Farmstead, Trevis Carmichael

Department of Environmental Studies: Undergraduate Student Theses

When Europeans began settling in the United States, farmsteads were built across the Great Plains. Out of necessity, these had to function in a self-sufficient manner; meaning the people had to produce their own food, use local materials, and be energy efficient for their transportation. Parents had to teach their children how to do all of the practical work it took to maintain their lives. This was the foundation that America was built upon. Having completed the first decade of the 21st century, the time seems right for a mental re-settlement that follows some of those same principles. Teaching our …


Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone May 2011

Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone

Department of Environmental Studies: Undergraduate Student Theses

Globally we are witnessing growing environmental destruction, particularly to the natural resource bases of underdeveloped countries. If ecotourism can generate profits for local economies, while protecting and conserving the natural resource base of that community, it could be a strong alternative for numerous countries. Evidence suggests that the ecotourism industry has been expanding at a rapid rate in recent decades (Dasenbrock 2002). It is important to understand the positive and negative ecological impacts of the industry as this rapid growth rate continues.

The main objective of this study is to highlight the strengths and weaknesses of the ecotourism industry in …


Educating Young Adults About Sustainable Development, Meghan Lewis May 2011

Educating Young Adults About Sustainable Development, Meghan Lewis

Department of Environmental Studies: Undergraduate Student Theses

This qualitative study on the types of environmental education on different age groups was conducted in Lincoln, Nebraska. The purpose of this thesis is to identify what age group and educational methods would be most effective to educate Lincoln citizens on the importance and benefits of sustainable development. Environmental education is an important aspect in implementation of new, environmentally friendly ideas.

Lincoln environmentalists are working to improve the city’s sustainability. Finding a way to consistently educate Lincoln residents on the importance and benefits of sustainable development will increase the public’s awareness of their efforts, leading to a greater interest in …


Droughtscape- Spring 2011, Kelly Smith Apr 2011

Droughtscape- Spring 2011, Kelly Smith

Droughtscape, Quarterly Newsletter of NDMC, 2007-

Register Now

Forecasters Say Dryness in TX and SW to Continue

Drought Planning, The Game: Coming Soon

Ding Takes New Post

South and Southwest Lose Crops, Fight Fires

Drought Monitor Authors Review Enhanced GIS Tools and New Processes


The Influence Of Prescribed Fire And Understory Fuels Mastication On Soil Carbon Respiration Rates In Flatwoods Forests, Leda Kobziar, David Godwin, Michael Camp, Dawn Mckinstry, Marissa Steifel, Alex Kattan, Daniel Godwin Jan 2011

The Influence Of Prescribed Fire And Understory Fuels Mastication On Soil Carbon Respiration Rates In Flatwoods Forests, Leda Kobziar, David Godwin, Michael Camp, Dawn Mckinstry, Marissa Steifel, Alex Kattan, Daniel Godwin

JFSP Research Project Reports

Soil CO2 efflux (Rs) is a significant flux of carbon dioxide from ecosystem soils to the atmosphere and is a critical component of the total ecosystem carbon budget. Rs fluxes are comprised of autotrophic (Ra) sources of CO2 produced by plant roots and associated rhizosphere fungi and heterotrophic (Rh) sources of CO2 produced by aerobic soil microbes. A variety of forest management activities, including prescribed fire and mechanical fuels mastication treatments have been shown to significantly influence Rs rates in forests of the Western United States (US), yet these relationships are not well known for southeastern US forests. Prescribed fire …


Will Climate Change Alter Wildfire Behavior And Effects In Seasonally-Dry Wetlands?, Leda Kobziar Dr., Adam Watta Dr., J. Michael Camp Mr., Marissa Streiffel Ms., Alex Kattan Mr. Jan 2011

Will Climate Change Alter Wildfire Behavior And Effects In Seasonally-Dry Wetlands?, Leda Kobziar Dr., Adam Watta Dr., J. Michael Camp Mr., Marissa Streiffel Ms., Alex Kattan Mr.

JFSP Research Project Reports

The effects of edge on ecosystems is well documented on animal and plant species, as well as a number of ecosystem attributes. A substantial determinant of ecological edge effects is the effect of edge on microclimate parameters such as temperature and humidity. These effects have been described in detail in upland communities, but not in wetland forests. Of particular interest is whether hydrologic influence trumps edge effect; in other words, does the influence of inundation create a hydrologic “switch” that overwhelms edge effect? In a landscape with numerous wetland forest patches subject to seasonal hydrologic fluctuations, I measured microclimate in …


Vegetation Impacts Of Recurring Fires On Sagebrush Ecosystems In Washington: Implications For Conservation And Rehabilitation, J. D. Bakker, P. W. Dunwiddie, S. A. Hall, J. R. Evans, G, M. Davies, E. Detterweiler-Robinson Jan 2011

Vegetation Impacts Of Recurring Fires On Sagebrush Ecosystems In Washington: Implications For Conservation And Rehabilitation, J. D. Bakker, P. W. Dunwiddie, S. A. Hall, J. R. Evans, G, M. Davies, E. Detterweiler-Robinson

JFSP Research Project Reports

Thousands of hectares of high quality sagebrush shrub-steppe burned in south-central Washington in 2000 and 2007, particularly on the Arid Lands Ecology Reserve (ALE) on the Hanford Reach National Monument. Extensive rehabilitation efforts took place on ALE to control invasive species and establish native species following each of these fires. Permanent vegetation monitoring plots were established throughout this area in the mid-1990s, remonitored in 2001-2004, and monitored again in 2009-2010. This combination of rehabilitation treatments and monitoring provided a unique opportunity to better understand the individual and cumulative effects of recurring fires and restoration in this landscape. We investigated changes …


Comprehensive Fuels Treatment Pratices Guide For Mixed Conifer Forests: California, Central And Southern Rockies, And The Southwest, Alexander M. Evans, Rick G. Everett, Scott L. Stephens, James A. Youtz Jan 2011

Comprehensive Fuels Treatment Pratices Guide For Mixed Conifer Forests: California, Central And Southern Rockies, And The Southwest, Alexander M. Evans, Rick G. Everett, Scott L. Stephens, James A. Youtz

JFSP Research Project Reports

The goal of this guide is to provide a resource for managers of mixed conifer forests of the Southwestern plateaus and uplands, the Central and Southern Rocky Mountains, the Sierra Nevada, and the Transverse and Peninsular Ranges in Southern California. Mixed conifer forests have different species, structures, and spatial patterns in these regions but, in general, we focus on forests with a mix of ponderosa or Jeffrey pine, Douglas-fir, true firs, and aspen. The guide includes a comprehensive review of historic conditions, past land use, natural fire regimes, impacts of altered fire regimes, and future prospects, given climate change, for …


A Regional Experiment To Evaluate Effects Of Fire And Fire Surrogate Treatments In The Sagebrush Biome, James Mclver, Dave Pyke, Hugh Barrett, Mark Brunson, Steve Bunting, Jeanne C. Chambers, Carla D'Antonio, Paul Doescher, Dale Johnson, Sherm Karl, Steve Knick, Rick Miller, Mike Pellant, Fred Pierson, Kim Rollins, Bruce Roundy, Gene Schupp, Robin Tausch, David Turner, Mike Wisdom Jan 2011

A Regional Experiment To Evaluate Effects Of Fire And Fire Surrogate Treatments In The Sagebrush Biome, James Mclver, Dave Pyke, Hugh Barrett, Mark Brunson, Steve Bunting, Jeanne C. Chambers, Carla D'Antonio, Paul Doescher, Dale Johnson, Sherm Karl, Steve Knick, Rick Miller, Mike Pellant, Fred Pierson, Kim Rollins, Bruce Roundy, Gene Schupp, Robin Tausch, David Turner, Mike Wisdom

JFSP Research Project Reports

SageSTEP is a comprehensive regional experiment that provides critical information to managers faced with a sagebrush steppe ecosystem that is increasingly at risk from wildfire, invasive plants, and climate change. The experiment provides managers with information that can be used to restore ecological communities across the 100+ million acres of the sagebrush biome. It is designed to match the temporal and spatial scales at which managers operate, is intended to reduce management risk and uncertainty of catastrophic wildfire to the greatest degree possible, and provides managers with information that allows them to better understand tradeoffs inherent in the choice of …


Climate, Fire And Carbon: Tipping Points And Landscape Vulnerability In The Greater Yellowstone Ecosystem, Erica A.H. Smithwick, Anthony L. Westerling, Monica G. Turner, William H. Romme, Michael G. Ryan Jan 2011

Climate, Fire And Carbon: Tipping Points And Landscape Vulnerability In The Greater Yellowstone Ecosystem, Erica A.H. Smithwick, Anthony L. Westerling, Monica G. Turner, William H. Romme, Michael G. Ryan

JFSP Research Project Reports

More frequent fires under climate warming are likely to alter terrestrial carbon (C) stocks by reducing the amount of C stored in biomass and soil. However, the thresholds of fire frequency that could shift landscapes from C sinks to C sources under future climates and whether these are likely to be exceeded during the coming century are not known. We used the Greater Yellowstone Ecosystem (GYE) as a case study to explore the conditions under which future climate and fire regimes would result in tipping points of C source/sink dynamics. We asked: (1) How great a change in climate and …


Compiling, Synthesizing And Analyzing Existing Boreal Forest Fire History Data In Alaska, Diana L. Olson, James B. Cronan, Donald Mckenzie, Jennifer L. Barnes, Anne E. Camp, Mike Tjoelker, Jennifer Northway, Paige Eagle Jan 2011

Compiling, Synthesizing And Analyzing Existing Boreal Forest Fire History Data In Alaska, Diana L. Olson, James B. Cronan, Donald Mckenzie, Jennifer L. Barnes, Anne E. Camp, Mike Tjoelker, Jennifer Northway, Paige Eagle

JFSP Research Project Reports

Wildland fires play a critical role in maintaining the ecological integrity of boreal forests in Alaska. Identifying and maintaining natural fire regimes is an important component of fire management. There are numerous research projects that directly or indirectly address historical fire regimes in the Alaskan boreal forest, but many are unpublished, have many unprocessed dendrochronological (tree age and fire scar) samples, or their data were used for other purposes. Furthermore, no assessment of these data exists to understand how fire has historically affected the boreal forest ecosystems of Alaska. The goal of this project was to compile and synthesize existing …