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Articles 91 - 120 of 151
Full-Text Articles in Forest Management
Saving The Cypress: Restoring Fire To Rare, At-Risk Species, Christina Frame
Saving The Cypress: Restoring Fire To Rare, At-Risk Species, Christina Frame
Joint Fire Science Program Briefs (2007-2012)
Many populations of Baker and Macnab cypress are dying without signs of regeneration. The Forest Service is currently implementing controlled burning across a range of vegetation types in northern California, but because there is little information about how such treatments will affect rare, endemic plant communities, cypress stands have been excluded from such treatments. However, these fire-adapted species cannot survive extended periods of fire exclusion. To effectively manage the cypress and prevent further decline of the species, land managers need information on factors that promote cypress regeneration. The objectives of this study were to (1) determine if fire is indeed …
Evaluating Bark Beetle And Wildfi Re Dynamics In The Greater Yellowstone Ecosystem, Shari Anstedt
Evaluating Bark Beetle And Wildfi Re Dynamics In The Greater Yellowstone Ecosystem, Shari Anstedt
Joint Fire Science Program Briefs (2007-2012)
In the western United States, bark beetle outbreaks are at a record high—and of grave concern to forest managers and other stakeholders. There is a common belief that the high amounts of dead fuels produced by bark beetle infestations increase the chance of active crown fires. However, little is known about how bark beetle outbreaks and wildfire interact, and how that interaction influences the overall ecosystem structure and potential fi re behavior. To better understand bark beetle/wildfire dynamics, a study was conducted in beetle-infested areas of the Greater Yellowstone Ecosystem (GYE) in northwestern Wyoming and adjacent portions of Montana and …
A Project In Two Parts: Developing Fire Histories For The Eastern U.S. And Creating A Climate-Based Continental Fire Frequency Model To Fill Data Gaps, Christina Frame
A Project In Two Parts: Developing Fire Histories For The Eastern U.S. And Creating A Climate-Based Continental Fire Frequency Model To Fill Data Gaps, Christina Frame
Joint Fire Science Program Briefs (2007-2012)
Tree-ring dated fire scars provide long-term records of fire frequency, giving land managers valuable baseline information about the fire regimes that existed prior to Euro-American settlement. However, for the East, fire history data prove diffi cult to acquire because the generally moister climate of the region causes rapid decay of wood. In an endeavor to fill data gaps, the research team collected fire scar data in the states of Alabama, Louisiana, Kentucky, Tennessee, Iowa, Wisconsin, and Michigan. The second part of the project used this newly collected fi re history data combined with previously collected records to parameterize and calibrate …
Reducing Fuels Through Mulching Treatments: What Are The Ecological Effects?, Christina Frame
Reducing Fuels Through Mulching Treatments: What Are The Ecological Effects?, Christina Frame
Joint Fire Science Program Briefs (2007-2012)
Many areas in the western U.S. are being thinned to reduce fire hazard and spread. Often the most economical solution for the disposal of the thinned biomass is to grind and leave the material onsite. These treatments are assumed to reduce the ability of the forest to carry a crown fire, but the effects of the added material on forest ecosystems are poorly known because such treatments do not have a natural analogue. Managers and the public are interested in understanding the impacts of the addition of this woody material on forest ecosystems so they can evaluate the benefi ts …
Ponderosa Pine Biomass Relationships Vary With Site Treatment And Site Productivity, Joy Drohan
Ponderosa Pine Biomass Relationships Vary With Site Treatment And Site Productivity, Joy Drohan
Joint Fire Science Program Briefs (2007-2012)
Allometric equations, which express biomass as a function of tree size, are often used to estimate the amount of fuel in a site’s canopy. Most managers assume that one allometric equation per species is suffi cient, or that any error introduced by extrapolation is irrelevant. This work showed, however, that the allometric biomass relationship for ponderosa pine likely changes over space and time. The researchers concluded that for maximum accuracy, allometric equations for ponderosa pine should account for stand management history and site productivity. Thinned trees replaced their foliage within about 4 years, and 8–10 years post-thinning, growth had stabilized. …
Modifying The Model To Mitigate Crown Fire: Improving Estimates Of Canopy Fuels For The Black Hills (And Beyond), Christina Frame
Modifying The Model To Mitigate Crown Fire: Improving Estimates Of Canopy Fuels For The Black Hills (And Beyond), Christina Frame
Joint Fire Science Program Briefs (2007-2012)
Managers of most coniferous forests in the western United States aim to create and maintain forest structures that are less susceptible to the initiation and spread of crown fire. To achieve this end, they use models that predict potential fire behavior, and these models rely on accurate estimates of canopy structure, including canopy base height (CBH) and canopy bulk density (CBD). Managers predict CBD through use of the Fire and Fuels Extension to the Forest Vegetation Simulator (FFE-FVS). However, the equations used by FFE-FVS to predict crown mass are based on estimates solely from northern Montana and Idaho, and therefore …
Woodpecker Habitat After The Fire, Jake Delwiche
Woodpecker Habitat After The Fire, Jake Delwiche
Joint Fire Science Program Briefs (2007-2012)
Public land managers are asked to minimize fuel levels after fires, including using techniques such as salvage logging. They are also responsible for maintaining suitable wildlife habitat, especially for species of concern to state and federal agencies. An area where these responsibilities could conflict is in the use of salvage logging in burned-over areas that also represent good habitat for certain wildlife such as woodpeckers. Controversy over this conflict has led to litigation. Public land management agencies need consistent design criteria to maintain suitable habitats for these birds. Little information has existed on how to assess potential effects of postfire …
Post-Fi Re Logging: An Effective Tool For Managing Future Fuels In Coniferous Inland Northwest Forests, Joy Drohan
Post-Fi Re Logging: An Effective Tool For Managing Future Fuels In Coniferous Inland Northwest Forests, Joy Drohan
Joint Fire Science Program Briefs (2007-2012)
This study involved a chronosequence of 68 stand-replacing wildfires that happened between 1970 and 2007 in dry coniferous forests of eastern Washington and Oregon. The authors compared snag decay and surface fuel accumulation with and without post-fire logging. Without logging after a fire, woody fuels accumulate for 15–30 years because the rate of fuel deposition on the ground is greater than the rate of wood decay. Stands that were more dense prefire have greater accumulations of fuel. Predominant tree species and size influenced rates of fuel deposition and snag decay. Thin trees fell before larger trees and ponderosa pines typically …
Fire Helps The Lonesome Pine, Jake Delwiche
Fire Helps The Lonesome Pine, Jake Delwiche
Joint Fire Science Program Briefs (2007-2012)
Regeneration of Table Mountain pines in the Southern Appalachian has been on the decline since the 1950s. From central Pennsylvania to northeast Georgia, stands of these pines are beginning to be dominated by oaks, particularly chestnut oak, and by hickories. It has been believed that this is because the shade-intolerant pines are being replaced by more shade tolerant hardwoods and shrubs, largely a result of fire exclusion in these areas. Few studies have evaluated fire as a tool for replacement of this species. Some prescriptions have called for intense crown fi res, but these narrow the burning window and cause …
Evaluating The Effects And Effectiveness Of Post-Fire Seeding Treatments In Western Forests, Shari Anstedt
Evaluating The Effects And Effectiveness Of Post-Fire Seeding Treatments In Western Forests, Shari Anstedt
Joint Fire Science Program Briefs (2007-2012)
High-severity wildfires can profoundly affect soils and plant communities, thus requiring emergency rehabilitation treatments such as post-fire seeding. Intended to stabilize soils, reduce erosion, and combat non-native species invasions, post-fire seeding is typically one of the first treatments used by most U.S. natural resource agencies. But despite its widespread use, there is still doubt about the treatment’s actual effectiveness and ecological impacts. Therefore, researchers conducted a study to gain more definitive insight on the ecological effects and usefulness of post-fire seeding. The first part of the study involved an evidence-based review of scientifi c articles, theses, and government publications to …
Optimizing The Location Of Fuel Treatments Over Time At Landscape Scales, Shari Anstedt
Optimizing The Location Of Fuel Treatments Over Time At Landscape Scales, Shari Anstedt
Joint Fire Science Program Briefs (2007-2012)
Fuel treatments are a vital part of forest management—but when faced with limited budgets, narrow burning windows, and air quality restrictions, it can be challenging to prioritize where, when, and how fuel treatments should be applied across the landscape to achieve the most benefit. To help ease this process, land managers can turn to various standalone models, capabilities, and decision support systems. While these tools address various aspects of fuel treatments, there is no one integrated solution that can provide the combined functionality needed to handle the strategic scheduling of fuel treatments, the spatial and temporal changes of fuel treatment …
Synthesis Of Knowledge Of Extreme Fire Behavior: Volume I For Fire Managers, Paul A. Werth, Brian E. Potter, Craig B. Clements, Mark A. Finney, Jason A. Forthofer, Sara S. Mcallister, Scott L. Goodrick, Martin E. Alexander, Miguel G. Cruz
Synthesis Of Knowledge Of Extreme Fire Behavior: Volume I For Fire Managers, Paul A. Werth, Brian E. Potter, Craig B. Clements, Mark A. Finney, Jason A. Forthofer, Sara S. Mcallister, Scott L. Goodrick, Martin E. Alexander, Miguel G. Cruz
Joint Fire Science Program Synthesis Reports
The National Wildfire Coordinating Group definition of extreme fire behavior (EFB) indicates a level of fire behavior characteristics that ordinarily precludes methods of direct control action. One or more of the following is usually involved: high rate of spread, prolific crowning/ spotting, presence of fire whirls, and strong convection column. Predictability is difficult because such fires often exercise some degree of influence on their environment and behave erratically, sometimes dangerously. Alternate terms include “blow up” and “fire storm.” Fire managers examining fires over the last 100 years have come to understand many of the factors necessary for EFB development. This …
Comprehensive Fuels Treatment Practices Guide For Mixed Conifer Forests: California, Central And Southern Rockies, And The Southwest, A. M. Evans, R. G. Everett, S. L. Stephens, J. A. Youlz
Comprehensive Fuels Treatment Practices Guide For Mixed Conifer Forests: California, Central And Southern Rockies, And The Southwest, A. M. Evans, R. G. Everett, S. L. Stephens, J. A. Youlz
Joint Fire Science Program Synthesis 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 …
Synthesis Of Knowledge: Fire History And Climate Change, William T. Sommers, Stanley G. Coloff, Susan G. Conard
Synthesis Of Knowledge: Fire History And Climate Change, William T. Sommers, Stanley G. Coloff, Susan G. Conard
Joint Fire Science Program Synthesis Reports
This report synthesizes available fire history climate change scientific knowledge to aid managers with fire decisions in tile face of ongoing 21st Century cIimate change. Fire history and climate change mange (FHCC} have been ongoing for over 400 million years of Earth history, but increasing human influences during tile Holocene epoch have changed both climate and fire regimes. We describe basic concepts of climate science and explain the causes of accelerating 21H Century climate change. Fire regimes and ecosystems classification serve to unify ecological and climate factors influencing fire, and are useful for applying fire history and climate manage …
Evaluation And Utilization Of The Continuous Forest Inventory System At Swanton Pacific Ranch, Dominic Ali, Reid Cody
Evaluation And Utilization Of The Continuous Forest Inventory System At Swanton Pacific Ranch, Dominic Ali, Reid Cody
Natural Resources Management and Environmental Sciences
Five Continuous Forest Inventories (CFI) and one Senior Project Inventory (Piper et al. 1989) at Swanton Pacific Ranch in Davenport, CA were compiled and standardized to be formatted for input into Forest and Stand Evaluation Environment (FORSEE) growth and yield modeling software. Data from field books and Excel spreadsheets located on the Cal Poly Natural Resources Management Department hard drive was transcribed into a Microsoft Excel database. Data sources and authenticity were verified by cross-referencing plot data from multiple sources, associated senior project reports, and location on the Swanton grid system. An additional summary spreadsheet was made to help users …
A Guide To Fuels Management In Riparian Areas Of The Interior West, Final Report, Kathleen A. Dwire, Kristen E. Meyer, Sandra E. Ryan, Gregg Riegel, Timothy Burton
A Guide To Fuels Management In Riparian Areas Of The Interior West, Final Report, Kathleen A. Dwire, Kristen E. Meyer, Sandra E. Ryan, Gregg Riegel, Timothy Burton
Joint Fire Science Program Synthesis Reports
Fuel treatments in riparian areas pose distinct challenges. Riparian areas are protected by administrative regulations, many of which are largely custodial and restrict active management. However, riparian areas have also been affected by fire suppression, land use, and disturbance and manipulative treatments of fuels may be needed to maintain riparian biodiversity and restore valued functions. This project is a synthesis of the current knowledge regarding fuels treatments in riparian areas of the interior western USA. It summarizes the most recent scientific literature, but also incorporates the practical knowledge gained by resource managers who have been utilizing different techniques to reduce …
Synthesis Of Knowledge: Fire History And Climate Change, William T. Sommers, Stanley G. Coloff, Susan G. Conard
Synthesis Of Knowledge: Fire History And Climate Change, William T. Sommers, Stanley G. Coloff, Susan G. Conard
Joint Fire Science Program Synthesis Reports
This report synthesizes available fire history and climate change scientific knowledge to aid managers with fire decisions in the face of ongoing 21st century climate change. Fire history and climate change (FHCC) have been ongoing for over 400 million years of Earth history, but increasing human influences during the Holocene Epoch have changed both climate and fire regimes. We describe basic concepts of climate science and explain the causes of accelerating 21st century climate change. Fire regimes and ecosystem classifications serve to unify ecological and climate factors influencing fire, and are useful for applying fire history and climate change information …
Wetland Features And Landscape Context Predict The Risk Of Wetland Habitat Loss, Kevin J. Gutzwiller, Curtis H. Flather
Wetland Features And Landscape Context Predict The Risk Of Wetland Habitat Loss, Kevin J. Gutzwiller, Curtis H. Flather
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Wetlands generally provide significant ecosystem services and function as important harbors of biodiversity. To ensure that these habitats are conserved, an efficient means of identifying wetlands at risk of conversion is needed, especially in the southern United States where the rate of wetland loss has been highest in recent decades. We used multivariate adaptive regression splines to develop a model to predict the risk of wetland habitat loss as a function of wetland features and landscape context. Fates of wetland habitats from 1992 to 1997 were obtained from the National Resources Inventory for the U.S. Forest Service’s Southern Region, and …
Nebraska’S Forest Resources, 2011, Dacia Meneguzzo, Chuck Barnett
Nebraska’S Forest Resources, 2011, Dacia Meneguzzo, Chuck Barnett
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
This publication provides an overview of forest resource attributes for Nebraska based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report.
Timber Talk, Vol. 49, No. 1, February 1, 2011
Timber Talk, Vol. 49, No. 1, February 1, 2011
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Hardwood Lumber Market History—Green; Nebraska “Primary Processors” Directory; Long Time Nebraska Sawmiller Will Be Missed; What Is That Log Worth?; Nebraska Forestry Industry Spotlight; The Trading Post; Timber Sales;
Striving For Long-Term Forest Sustainability—Even As The Climate Changes, Shari Anstedt
Striving For Long-Term Forest Sustainability—Even As The Climate Changes, Shari Anstedt
Joint Fire Science Program Briefs (2007-2012)
Climate change, and its ecological impact, is right on the horizon. According to climate predictions over the next century, the southwestern United States will face higher temperatures and greater evaporative loss, which will heighten the possibility for severe drought. The stress of more frequent, intense droughts can increase tree mortality, hinder growth, and alter forest structure and composition. As a result, it’s now more important than ever for land managers to understand how today’s decisions and actions can impact future forest conditions. To develop answers, researchers conducted a study in the oldest ponderosa pine restoration project in the Southwest. Located …
Assessing Fuel Treatment Effectiveness After The Tripod Complex Fires, Shari Anstedt
Assessing Fuel Treatment Effectiveness After The Tripod Complex Fires, Shari Anstedt
Joint Fire Science Program Briefs (2007-2012)
Over the past 50 years, wildfire frequency and area burned have increased in the dry forests of western North America. To help reduce high surface fuel loads and potential wildfire severity, a variety of fuel treatments are applied. In spite of the common use of these management practices, there have been relatively few opportunities to quantitatively measure their efficacy in wildfires. That changed with the 2006 Tripod Complex fires in the Okanogan-Wenatchee National Forest in Washington—one of the largest fire events in Washington state over the past five decades. A serendipitous involvement of recent fuel treatments and the availability of …
Basic Concepts In Forest Valuation And Investment Analysis: Edition 3.0, Steven H. Bullard, Thomas J. Straka
Basic Concepts In Forest Valuation And Investment Analysis: Edition 3.0, Steven H. Bullard, Thomas J. Straka
Faculty Publications
This book was originally intended to supplement lectures in forestry economics at the undergraduate level. It’s currently used for that purpose in ‘Forest Resource Economics’ courses at several universities. The book is also intended, however, to serve as a basic reference for foresters with experience in valuation and investment analysis concepts and methods. It has proven to be a valuable resource in forest valuation and investment analysis workshops for practicing foresters, landowners, and others interested in forestry investments.
Timber Talk, Vol. 49, No. 3, September 1, 2011
Timber Talk, Vol. 49, No. 3, September 1, 2011
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Timber Stumpage Prices; Timber Culture Act; Powderpost Beetles; End-Coating Logs and Lumber Makes “Cents” (Or Dollars); Nebraska Forestry Industry Spotlight; Planning Tool Available to Loggers; The Trading Post; Timber Sales.
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.
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.
Joint Fire Science Program 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
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
Joint Fire Science Program 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 …
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
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
Joint Fire Science Program 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 …
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
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
Joint Fire Science Program 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
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
Joint Fire Science Program 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
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
Joint Fire Science Program 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 …