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Articles 1 - 24 of 24
Full-Text Articles in Physical Sciences and Mathematics
Comparison Of The Fuel Needed To Transport Plastic Recyclables Verses Aluminum Recyclables From Yellowstone National Park, Melissa Dejonge
Comparison Of The Fuel Needed To Transport Plastic Recyclables Verses Aluminum Recyclables From Yellowstone National Park, Melissa Dejonge
Department of Environmental Studies: Undergraduate Student Theses
Research has provided no definitive answers on whether PET plastic bottles or aluminum cans are a more environmentally sustainable choice as soda containers. This paper researches the fuel used in recycling each of these materials from Yellowstone National Park to processing locations. The data is used to determine which of these alternatives use less fuel in this process. It was found that plastics use more fuel when transported from Yellowstone National Park to the processing center. Aluminum uses less fuel per ton to transport from Yellowstone to the processing center. The conclusions from this research may have implications on which …
Droughtscape- Fall 2008, Kelly Smith
Droughtscape- Fall 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Washington Workshops Scheduled for November
Look for Warm West, Rainy Gulf, Easing Drought
New Drought Monitor Authors Profiled
Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue
NDMC Takes on New Projects
Hundreds+ See NDMC at Ag Trade Show
NDMC Welcomes New Employees
Droughtscape- Fall 2008, Kelly Smith
Droughtscape- Fall 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Washington Workshops Scheduled for November
Look for Warm West, Rainy Gulf, Easing Drought
New Drought Monitor Authors Profiled
Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue
NDMC Takes on New Projects
Hundreds+ See NDMC at Ag Trade Show
NDMC Welcomes New Employees
The Near East Drought Planning Manual: Guidelines For Drought Mitigation And Preparedness Planning, National Drought Mitigation Center
The Near East Drought Planning Manual: Guidelines For Drought Mitigation And Preparedness Planning, National Drought Mitigation Center
National Drought Mitigation Center: Publications
Table of Contents
1. Introduction to Drought Planning.............................................1
1.1 Effects of Drought in the Near East Region........................................................1
1.2 New Emphasis on Proactive Drought Planning .................................................. 3
1.3 Integration of Drought Planning and Sustainable Development ......................... 3
2. Explanation of Drought Concepts..............................................................5
2.1 Definitions ........................................................................................................ 5
2.2 The Nature of Drought ...................................................................................... 7
2.3 The Effects of Drought ...................................................................................... 7
3. HowtoDevelopaDroughtPlan.....................................................................................9
Step 1: Creating Political Momentum and Authority................................................9
Step 2: Coordinating Strategic Drought Planning .................................................. 12
Step 3: Fostering Involvement and Developing Common Understandings .............. 15
Step 4: Investigating Drought Monitoring, Risk, and Management Options............ 16
Step 5: Writing a …
Droughtscape- Summer 2008, Kelly Smith
Droughtscape- Summer 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
VegDRI Expands West
Spring Rains Ease Drought But CA Still Dry
Scholar Donates Books
NDMC Welcomes Employees Bathke, Nothwehr
Latest Workshop Info Up
State Lawmakers to Focus on Drought Planning
Decadal Variation -- Clues to Droughts and Floods?
Does The Corn/Soybean Farmer Have Time For Alternative Crops? [Abstract], Lori A. Hoagland, Laurie Hodges, Glenn A. Helmers, James R. Brandle, Charles A. Francis
Does The Corn/Soybean Farmer Have Time For Alternative Crops? [Abstract], Lori A. Hoagland, Laurie Hodges, Glenn A. Helmers, James R. Brandle, Charles A. Francis
Department of Agronomy and Horticulture: Faculty Publications
Diversification of traditional row-crop farming in the Corn Belt is seen as advantageous in providing a wider economic base, decreasing economic risk associated with the link between commodity grain and cattle, increasing net farm income, and increasing biodiversity in the region. As farm size has increased to provide sufficient farm income, farm operations during the critical planting and harvesting windows are seen as limits to additional on-farm enterprises.
The Fall 2008 Unl Bike Survey: Examining The Status Of Bicycle Transportation At The Univeristy Of Nebraska-Lincoln, Brent Schmoker
The Fall 2008 Unl Bike Survey: Examining The Status Of Bicycle Transportation At The Univeristy Of Nebraska-Lincoln, Brent Schmoker
Department of Environmental Studies: Undergraduate Student Theses
This study evaluates the state of bicycle use by University of Nebraska-Lincoln (UNL) students during the fall semester of 2008. An online survey was administered to a random sample of graduate and undergraduate students to determine the factors that encourage and inhibit students from using bikes for transportation to campus. The results suggest that a significant portion of the student population uses bikes for transportation to campus but several factors combine to keep the overall number of bicycle commuters low. The paper concludes with suggestions for increasing bike commuting to UNL and predictions about the future of transportation in the …
Droughtscape- Spring 2008, Kelly Smith
Droughtscape- Spring 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
San Angelo, April 24
Winter Sees Little Change in U.S. Drought
News Stories Reveal Array of Mitigation Strategies
NIDIS Wants You!
Sea Surface Temperatures Can Help Predict Drought
About DroughtScape
Recent Travels
An Affordable, Pratical Eco-House, Dave Fitzpatrick
An Affordable, Pratical Eco-House, Dave Fitzpatrick
Department of Environmental Studies: Undergraduate Student Theses
An eco-house or zero-energy house is not a new concept- houses with extremely low impact on their surroundings and good use of local resources have been around for centuries. This particular eco-house is designed to offer full modern services and comforts while consuming very low energy and few expensive building materials. Ideally, someone would be able to use this thesis as a blueprint for actual construction.
Droughtscape- Winter 2008, Kelly Smith
Droughtscape- Winter 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Now Up & On-Line:
Winter 2008 Outlook and Oct.-Dec. ’07 Summary
NDMC Experts Serve as Resource for Media
Drought Hits Ag and Urban Interests in 2007
Climatological Summary of Drought in 2007
NDMC Welcomes Data Miner Bo Zhang
New Grant Awards
Sampling Of Malodorous Compounds In Air Using Stir Bar Sorbtive Extraction, John H. Loughrin, Nanh Lovanh, Arturo I. Quintanar, Rezaul Mahmood
Sampling Of Malodorous Compounds In Air Using Stir Bar Sorbtive Extraction, John H. Loughrin, Nanh Lovanh, Arturo I. Quintanar, Rezaul Mahmood
HPRCC Personnel Publications
Twisters, (poly)‐dimethylsiloxane‐coated magnetic stir bars, were used to measure compounds typical of swine manure malodor in air. In initial experiments, a time to achieve equilibrium was determined by preloading the stir bars with ten compounds with a range of volatilities and polarities and then monitoring their loss. The rate of loss was dependent on compound volatility, and the time for equilibrium to be attained varied widely, from 22 min for phenol to 210 min for skatole. To test whether the Twisters would respond linearly over a range of concentrations, the stir bars were placed in vented jars with solutions of …
A Synthesis Of Live Fuel Moisture And Wildland Fire And Development Of A National Historical Live Fuel Moisture Database, William M. Jolly Dr.
A Synthesis Of Live Fuel Moisture And Wildland Fire And Development Of A National Historical Live Fuel Moisture Database, William M. Jolly Dr.
JFSP Research Project Reports
Live fuels are a key component to the wildland fuel complex but little is know about their contribution to fire danger or fire behavior. This review attempts to quantify our current understanding of the role that live fuels play in combustion and how those characteristics are quantified into prediction systems that fire managers use to assess fire danger or fire behavior as well as how live fuel parameters for those systems are measured. We review how live fuels are incorporated into three fire danger and fire behavior prediction systems that have found widespread use throughout the world. We discuss the …
Bringing The Fire Effects Information System Up-To-Date And Improving Service To Land Managers, Jane Kapler Smith, Fire Modeling Institute Information Team
Bringing The Fire Effects Information System Up-To-Date And Improving Service To Land Managers, Jane Kapler Smith, Fire Modeling Institute Information Team
JFSP Research Project Reports
This project delivers up-to-date, science-based information about species nominated by wildland managers for revision in or addition to the Fire Effects Information System (FEIS). FEIS now provides 1,081 literature reviews covering 1,139 taxa. This JFSP task has supported the rewriting of 9% of FEIS reviews, addition of reviews that increase FEIS content by 9%, and small updates to 25% of the database. Each FEIS species review addresses the basic biology of the species, fire regimes, fire's role in the life history and persistence of the species, competition and successional patterns, and issues regarding fuel management, prescribed fire, and postfire rehabilitation. …
Carbon Cycling At The Landscape Scale: The Effect Of Changes In Climate And Fire Frequency On Age Distribution, Stand Structure, And Net Ecosystem Production., Michael G. Ryan, Daniel M. Kashian, Erica A.H. Smithwick, William H. Romme, Monica G. Turner, Daniel B. Tinker
Carbon Cycling At The Landscape Scale: The Effect Of Changes In Climate And Fire Frequency On Age Distribution, Stand Structure, And Net Ecosystem Production., Michael G. Ryan, Daniel M. Kashian, Erica A.H. Smithwick, William H. Romme, Monica G. Turner, Daniel B. Tinker
JFSP Research Project Reports
Understanding the interactions between climate, fire and forest characteristics-- and how carbon dynamics are affected by these factors--remains an important challenge in ecology. As the size and severity of fires in the western US continues to increase (Westerling et al. 2006), it has become increasingly important to understand carbon dynamics in response to fire. In this study, we investigated these key interactions in the landscape of Yellowstone National Park (YNP). We asked how initial post-fire heterogeneity in forest structure (especially tree density and stand age) controls carbon dynamics over the full life cycle of individual forest stands, and how climate-mediated …
Behaveplus And Flammap Technology Transfer, Patricia Andrews, Mark Finney
Behaveplus And Flammap Technology Transfer, Patricia Andrews, Mark Finney
JFSP Research Project Reports
This project was conducted in response to the need identified under Task 1 (RFP 2005-4)—extension of technology transfer activities beyond the conclusion of successfully completed JFSP funded projects or other applicable wildland fire research. Development of the BehavePlus fire modeling system and the FlamMap fire behavior analysis and mapping system and supporting technology transfer material was funded in part under JFSP project #98-1-8-02. After successful completion of that project, development of those systems and supporting material continued under other funding. FlamMap was used in JFSP project #01-1-3-21 “Cumulative effects of fuel management on landscape-scale fire behavior and effects.” A significant …
Delayed Tree Mortality Following Fire In Western Conifers, Sheri Smith, Danny Chuck, Elizabeht Reinhardt, Kevin Ryan, Charles Mchugh
Delayed Tree Mortality Following Fire In Western Conifers, Sheri Smith, Danny Chuck, Elizabeht Reinhardt, Kevin Ryan, Charles Mchugh
JFSP Research Project Reports
We developed 3-year post-fire mortality models for 12 western conifer species by pooling data collected from multiple fire-injury studies. Models were developed for white fir, red fir, subalpine fir, incense cedar, western larch, lodgepole pine, whitebark pine, ponderosa pine, Jeffrey pine, sugar pine, Engelmann spruce, and Douglas-fir. Two sets of models were created, one for use in pre-fire planning where only crown injury and DBH were potential variables, and a second, optimal model for use in post-fire planning that used all significant variables. Predictive accuracy of all models was compared to the accuracy of the mortality model currently used in …
Burn Severity Mapping Using Simulation Modeling And Satellite Imagery, Robert E. Keane, Eva C. Karau, Elizabeth Reinhardt
Burn Severity Mapping Using Simulation Modeling And Satellite Imagery, Robert E. Keane, Eva C. Karau, Elizabeth Reinhardt
JFSP Research Project Reports
As wildfires becomes an increasingly important issue affecting our nation’s landscapes, fire managers must quickly assess possible adverse fire effects to efficiently allocate resources for rehabilitation or remediation. While burn severity maps derived from satellite imagery can provide a landscape view of relative fire impacts, fire effects simulation models can also provide spatial fire severity estimates along with the biotic context in which to interpret severity. In this project, we evaluated two methods of mapping burn severity for four wildfires in western Montana using 64 plots as field reference: 1) an image-based burn severity mapping approach using the Differenced Normalized …
Effects Of Fuels Treatments And Wildfire On Understory Species And Fuels In The Ponderosa Pine Zone Of The Colorado Front Range, Paula Fornwalt, Merrill Kaufmann
Effects Of Fuels Treatments And Wildfire On Understory Species And Fuels In The Ponderosa Pine Zone Of The Colorado Front Range, Paula Fornwalt, Merrill Kaufmann
JFSP Research Project Reports
The first clear indication that unnaturally dense forest conditions existed in ponderosa pine – Douglas-fir forests of the Colorado Front Range was the Buffalo Creek Fire, a large, catastrophic wildfire that burned in 1996. Ongoing research in the Front Range indicated that the Buffalo Creek Fire likely would have burned very differently under pre-settlement forest conditions; early photographs and written descriptions, as well as fire history and stand reconstruction data, all suggested that historically these forests were characterized by a matrix of low-density forests and shrubland or grassland openings that was created and maintained by a mixed-severity fire regime. As …
Effects Of Mechanically Generated Slash Particle Size On Prescribed Fire Behavior And Subsequent Vegetation Effects, Richy J. Harrod, David W. Peterson, Roger Ottmar, Peter Ohlson, Brad Flatten, Arlo Vanderwoude
Effects Of Mechanically Generated Slash Particle Size On Prescribed Fire Behavior And Subsequent Vegetation Effects, Richy J. Harrod, David W. Peterson, Roger Ottmar, Peter Ohlson, Brad Flatten, Arlo Vanderwoude
JFSP Research Project Reports
Forest managers have begun to restore ecosystem structure and function in fire-prone ecosystems that have experienced fire exclusion, commodity based resource extraction, and extensive grazing during much of the 20th century. Mechanical thinning and prescribed burning are the primary tools for thinning dense stands and restoring pre-settlement forest structure, reducing the likelihood of devastating crown fires. Mechanical thinning can be costly when trees are nonmerchantable and prescribed burning can be risky unless fuel loadings are first reduced. Furthermore, stands that remain dense after commercial thinning can produce undesirable wildland fire- or even prescribed fire- effects on vegetation and soils. Land …
Expansion Of The Southern Variant Of The Fire And Fuels Extension For The Forest Vegetation Simulator, S. M. Zedaker, S. A. Rebain, P. J. Radtke
Expansion Of The Southern Variant Of The Fire And Fuels Extension For The Forest Vegetation Simulator, S. M. Zedaker, S. A. Rebain, P. J. Radtke
JFSP Research Project Reports
This project specifically addressed AFP 2006-3, Task 3, by providing guidance for maintaining effective fire and non-fire fuels treatments, with the aim of supporting long-term fuels management. The overall goals of the project were to parameterize, expand, and improve the Southern Variant of the Fire and Fuels Extension (FFE) to the Forest Vegetation Simulator (FVS) with the best data currently available, to identify data weaknesses and gaps that may require additional research to reduce the uncertainty of Southern FFE model predictions, and to determine a validation framework for the Southern FFE. A wide variety of fire and fuels data and …
Evaluation Of Science Delivery Of Joint Fire Science Program Research, David Seesholtz
Evaluation Of Science Delivery Of Joint Fire Science Program Research, David Seesholtz
JFSP Research Project Reports
Since its inception in 1998, the Joint Fire Science Program (JFSP) has funded over 400 projects. The Joint Fire Science Program has long recognized that the investments made in wildland fire science need to be accompanied by an emphasis on science interpretation and delivery. Program success is ultimately measured by how well information from research efforts is being conveyed to resource managers and end users, and whether this information is improving management decisions. This study reviewed a sample of environmental documents from three JFSP sponsoring agencies to determine to what extent JFSP research is being incorporated into local planning efforts …
Evaluating The Efficacy And Ecological Impacts Of Baer Slope Stabilization Treatments On The Pot Peak/Deep Harbor Wildfire Complex, David W. Peterson, Richy J. Harrod, Terry Lillybridge, Mel Bennett
Evaluating The Efficacy And Ecological Impacts Of Baer Slope Stabilization Treatments On The Pot Peak/Deep Harbor Wildfire Complex, David W. Peterson, Richy J. Harrod, Terry Lillybridge, Mel Bennett
JFSP Research Project Reports
Post-fire slope stabilization treatments are often prescribed for severely burned areas of a wildfire, through burned area emergency response (BAER), to reduce erosion, maintain soil productivity, protect water quality, and reduce risks to human life and property. Prescribed slope stabilization treatments can include seeding of cereal grains or grasses, fertilization, mulching, and installation of physical barriers across slope contours (e.g., contour-felled logs and straw wattles). Seeding and fertilization treatments have been proposed following several high severity wildfires in the Pacific Northwest. These treatments are designed to reduce erosion by supplementing native vegetation recovery with additional populations of fast-growing species (seeding) …
Agricultural Systems: Agroecology And Rural Innovations For Development [Book Review], Charles A. Francis
Agricultural Systems: Agroecology And Rural Innovations For Development [Book Review], Charles A. Francis
Department of Agronomy and Horticulture: Faculty Publications
To welcome yet another book on sustainable development, a reviewer must look for what is unique and what adds value to the volumes already published. In Agricultural Systems, editors Sieglinde Snapp and Barry Pound have assembled a collection of chapters that goes beyond the usual praise and criticism of the green revolution and the focus on economic development. Their book provides a first-hand story by people with lengthy experiences in the field, especially in Africa, who have developed and tested grassroots, participatory development approaches. The result is a valuable set of principles, strategies and case studies that paint a new …
Sustainability In A Time Of Climate Change: Developing An Intensive Research Framework For The Platte River Basin And The High Plains Proceedings From The 2008 Climate Change Workshop, Monica Norby, Ashley Washburn
Sustainability In A Time Of Climate Change: Developing An Intensive Research Framework For The Platte River Basin And The High Plains Proceedings From The 2008 Climate Change Workshop, Monica Norby, Ashley Washburn
Office of Research and Economic Development: Publications
Proceedings from the 2008 Climate change Workshop, Nebraska Sandhills, May 19-22, 2008. Hosted by the University of Nebraska–Lincoln and the U.S. Geological Survey