Type
Topic
Region
Year
Displaying 5776 - 5800 of 5842
Emissions from prescribed fires in several different fuel types in the Pacific Northwest have been characterized. The characteristics of the particles less than 2.5 micrometers in diameter are reported as functions of fire behavior and fuel types. Profiles of trace elements and…
Person:
Year: 1989
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Prescribed Fire
Region(s): Northwest
Keywords: C - carbon, particles, fuel types, trace element analysis
Forest fires can be divided into two broad classes-wildfires and prescribed fires. Wildfires, whether caused by nature (lightning, etc.) or by the accidental or malicious acts of man, are not planned by forest managers and do not occur under controlled conditions. They can be…
Person:
Year: 1983
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fuel characteristics, fire emissions, forest fires, bibliographies, C - carbon, cellulose, chemistry, clearcutting, combustion, decay, duff, energy, ferns, fire weather, fuel moisture, fuel types, grass fuels, herbaceous vegetation, hydrocarbons, H2 - hydrogen, ignition, lignin, litter, logging, nutrients, organic matter, O - oxygen, fine particulates, seedlings, slash, woody fuels
It has been suggested that thinning trees and other fuel-reduction practices aimed at reducing the probability of high-severity forest fire are consistent with efforts to keep carbon (C) sequestered in terrestrial pools, and that such practices should therefore be rewarded…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: fire severity, fuel reduction treatments, carbon storage, western United States, fire exclusion, fire frequency, fire hazard reduction, fire injury, fire intensity, fuel moisture, surface fuels, wildfires, air quality, biomass, C - carbon, disturbance, drought, mortality, size classes, thinning, Pinus ponderosa, ponderosa pine, Pseudotsuga menziesii, Douglas-fir, ecosystem dynamics, fire management, forest management, fuel management, coniferous forests
For millennia, peatlands have served as an important sink for atmospheric CO2 and today represent a large soil carbon reservoir. While recent land use and wildfires have reduced carbon sequestration in tropical peatlands, the influence of disturbance on boreal peatlands is…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology
Region(s): Alaska, International
Keywords: carbon emissions, organic matter, peatlands, boreal peatlands, carbon loss, combustion, peat fires, surface fires, surface fuels, wildfires, C - carbon, carbon dioxide, climate change, drainage, soil moisture, soil nutrients, soil organic matter, Canada, Alberta, fire management, land use, soil management, boreal forest, marshland
Thermogravimetry (TG) was applied to forest fuel as a microcombustion technique to study emissions by evolved gas analysis (EGA). Emission rates for carbon monoxide (CO), carbon dioxide (CO2), and total hydrocarbons (THC) for both combustion and pyrolysis processes were…
Person:
Year: 1984
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fuels
Region(s): Southern
Keywords: slash pine, CO2 - carbon dioxide, CO - carbon monoxide, emission rate, thermogravimetry, evolved gas analysis, air quality, C - carbon, chemical compounds, combustion, fuel types, gases, heat, hydrocarbons, laboratory fires, microclimate, needles, O - oxygen, Pinus elliottii, statistical analysis, volatilization, wood properties
Above-ground biomass (live + dead), was estimated pre- and post-burn in eight types of savanna ecosystem in Roraima, in the extreme northern part of the Brazilian Amazon. The objective was to investigate the stock of pre-burn above-ground carbon and its fate after experimental…
Person:
Year: 2005
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Models, Monitoring and Inventory, Prescribed Fire
Region(s): International
Keywords: C - carbon, biomass, cerrado, savannas, Brazil, Amazonia, Amazon, combustion, cover, crowns, ecosystem dynamics, experimental fire, fine fuels, fire exclusion, fire management, fuel management, grasslands, herbaceous vegetation, leaves, litter, particulates, Poaceae, post-fire recovery, range management, season of fire, seedlings, shrubs, size classes, snags, South America, statistical analysis, Venezuela, woody fuels
Prescribed fire is used as a management practice to maintain grassland dominance and reduce woody plant encroachment on grasslands and rangelands. Little is known regarding effects of these fires on CO2 fluxes and their potential contribution to atmospheric CO2. The objectives…
Person:
Year: 2002
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Models, Prescribed Fire
Region(s): Southern
Keywords: C - carbon, Bromus japonicus, LAI - leaf area index, Prosopis glandulosa, rangelands, biomass burning, grasslands, scaling, mesquite, woody plant encroachment, biomass, woody plants, Buchloe spp., CO2 - carbon dioxide, combustion, dominance, drought, ecosystem dynamics, fire exclusion, fire management, fire resistant plants, invasive species, forbs, leaves, Nassella spp., photosynthesis, plant growth, population density, post-fire recovery, precipitation, Prosopis, range management, resprouting, savannas, season of fire, seasonal activities, statistical analysis, Texas
Prehistoric fire area and emissions from California's forests, woodlands, shrublands, and grasslands
In the majority of US political settings wildland fire is still discussed as a negative force. Lacking from current wildfire discussions are estimates of the spatial extent of fire and their resultant emissions before the influences of Euro-American settlement and this is the…
Person:
Year: 2007
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire History
Region(s): California
Keywords: air quality, C - carbon, fire exclusion, fire regime, fire return interval, fire suppression, particulates, fire policy, fire rotation, air resource management
An original method is proposed for estimating past carbon emissions from fires in order to understand long-term changes in the biomass burning that, together with vegetation cover, act on the global carbon cycle and climate. The past carbon release resulting from paleo-fires…
Person:
Year: 2010
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire History, Models
Region(s): Alaska, International
Keywords: boreal forest, Canada, air mass, carbon emissions, ecozones, Ontario, paleofire data, Quebec, vegetation zones, biomass burning, charcoal data, fire frequency, wildfires, air quality, C - carbon, charcoal, climatology, cover, evergreens, mosses, needles, paleoecology, statistical analysis, vegetation surveys, fire management, forest management, coniferous forests, deciduous forests, taiga, tundra
Two forest management objectives being debated in the context of federally managed landscapes in the U.S. Pacific Northwest involve a perceived trade-off between fire restoration and carbon sequestration. The former strategy would reduce fuel (and therefore C) that has…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Occurrence, Fire Prevention, Fuels, Models, Prescribed Fire, Restoration and Rehabilitation, Weather
Region(s): Northwest
Keywords: Douglas-fir, fuel reduction treatments, Pinus ponderosa, ponderosa pine, Pseudotsuga menziesii, carbon sequestration, Picea sitchensis, Sitka spruce, biofuel, STANDCARB, biomass, C - carbon, carbon dioxide, Cascade Range, coniferous forests, ecosystem dynamics, fine fuels, fire exclusion, fire frequency, fire hazard reduction, fire intensity, fire management, fire suppression, flammability, forest management, fuel accumulation, fuel management, logging, Oregon, Picea, Picea sitchensis, pine, pine forests, Pinus, precipitation, Pseudotsuga spp., salvage, soil permeability, statistical analysis, suppression, thinning, Tsuga heterophylla, understory vegetation, vegetation surveys, wildfires, wood
We calculate greenhouse-gas emissions from land-use change in Mato Grosso and Rondônia, two states that are responsible for more than half of the deforestation in Brazilian Amazonia. In addition to deforestation (clearing of forest), we also estimate clearing rates and emissions…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Prescribed Fire, Restoration and Rehabilitation
Region(s): International
Keywords: C - carbon, biomass, deforestation, global warming, greenhouse gas emissions, land use change, savannas, tropical forest, Amazon, Brazil, rainforest, agriculture, cerrado, combustion, cover, decay, diameter classes, fire management, forest management, climate change, greenhouse gases, land use, livestock, logging, mosaic, rainforests, soil nutrients, tropical forest, vegetation surveys
Estimates of greenhouse-gas emissions from deforestation are highly uncertain because of high variability in key parameters and because of the limited number of studies providing field measurements of these parameters. One such parameter is burning efficiency, which determines…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels
Region(s): International
Keywords: C - carbon, charcoal, biomass, deforestation, global warming, greenhouse gas emissions, Amazon, Brazil, burning efficiency, rainforest, biomass burning, cutting, decay, deciduous forests, diameter classes, fire management, forest management, forest types, fuel management, climate change, humidity, leaves, litter, logging, population density, sampling, tropical forest, vines
In many forest types, over half of the total stand biomass is located in the forest floor. Carbon emissions during wildland fire are directly related to biomass (fuel) consumption. Consumption of forest floor fuel varies widely and is the greatest source of uncertainty in…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Prevention, Fuels, Models
Region(s): Alaska, International
Keywords: boreal forest, Canada, forest floor, biomass consumption, carbon emissions, fuel consumption, air quality, Betula papyrifera, biomass, C - carbon, coniferous forests, drought, duff, experimental fire, fire hazard reduction, fire management, forest management, forest types, fuel loading, fuel management, fuel moisture, fuel types, Picea glauca, Pinus banksiana, Populus tremuloides, statistical analysis, understory vegetation, wildfires
The classification of savanna fires into headfire and backfire types can in theory help in assessing pollutant emissions to the atmosphere via relative apportionment of the amounts of smouldering and flaming combustion occurring, and is also important when assessing a fire's…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, fire, intensity, radiative energy, global emission budgets
The boreal region stores a large proportion of the world's terrestrial carbon (C) and is subject to high-intensity, stand-replacing wildfires that release C and nitrogen (N) stored in biomass and soils through combustion. While severity and extent of fires drives overall…
Person:
Year: 2010
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): Alaska
Keywords: boreal forest, C - carbon, N - nitrogen, organic layer, soil, allometric equations, black spruce, Picea mariana, fuel consumption, adventitious roots
Wildland fire is a global phenomenon, and a result of interactions between climate-weather, fuels and people. Our climate is changing rapidly primarily through the release of greenhouse gases that may have profound and possibly unexpected impacts on global fire activity. The…
Person:
Year: 2009
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Occurrence, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, forest fire, management, area burned, fire activity, intensity, severity, review, season
Fuel treatments alter conditions in forested stands at the time of the treatment and subsequently. Fuel treatments reduce on-site carbon and also change the fire potential and expected outcome of future wildfires, including their carbon emissions. We simulated effects of fuel…
Person:
Year: 2010
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): Northern Rockies
Keywords: thinning, wildfire, fuel treatment effects, air quality, C - carbon, coniferous forests, crown fires, Douglas-fir, Engelmann spruce, FIA - Forest Inventory and Analysis, fire hazard reduction, fire intensity, fire management, flame length, forest management, fuel management, fuel types, ladder fuels, Larix occidentalis, lodgepole pine, Montana, mortality, mountains, Picea engelmannii, Pinus contorta, Pinus monticola, Pinus ponderosa, ponderosa pine, Pseudotsuga menziesii, snags, stand characteristics, subalpine forests, Tsuga heterophylla, Tsuga mertensiana, western hemlock, western larch, western white pine, woody fuels
Carbon monoxide (CO) is a highly toxic, nonirritating gas. One of the products of combustion, it is invisible, odorless, tasteless, and slightly lighter than air. But smoke, another combustion product, is visible. And when smoke is present, it is highly likely that CO and other…
Person:
Year: 1971
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Prevention, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire fighting, CO - carbon monoxide, forest fires, CO poisoning, fire fighting vehicles, fire resistant materials, air quality, C - carbon, fire suppression, wildfires
Several receptor modeling techniques are used to identify sources contributing to concentrations of air pollutants at receptor sites that degrade air quality. Potassium and carbon content of the fine particulate matter are the primary indicators for smoke from slash fires in…
Person:
Year: 1986
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Models, Prescribed Fire
Region(s): Northwest
Keywords: air quality, PM - particulate matter, trace gas emissions, smoke characteristics, source apportionment, C - carbon, chemistry, chlorine, coniferous forests, energy, fire intensity, fuel moisture, fuel types, gases, logging, particulates, pollution, K - potassium, sampling, slash, statistical analysis
The Fire and Environmental Research Applications Team (FERA) of the Forest Service, Pacific Northwest Research Station, is an interdisciplinary team of scientists that conduct primary research on wildland fire and provide decision support for fire hazard and smoke management.…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fuels, Hazard and Risk, Models, Planning
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: FEPS - Fire Emissions Production Simulator, FCCS - Fuel Characteristic Classification System, Natural Fuels Photo Series, Consume 3.0, FERA - Fire and Environmental Research Applications Team, Digital Photo Series, fire management, air quality, C - carbon, fire hazard reduction, fire size, fuel management, fuel types, photography, population density, smoke management, surface fires, vegetation surveys, wildfires
Description not entered.
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Unknown
Keywords: C - carbon, atmosphere, ozone, biomass burning
Description not entered.
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Alaska
Keywords: C - carbon, boreal forests
This technical report examines different future scenarios for sequestering carbon and reducing emissions of methane (CH4) and nitrous oxide (N2O) from U.S. forestry and agriculture. Net greenhouse gas mitigation estimates in response to carbon price assumptions are presented for…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, greenhouse gas emissions
The D/H content of methane emitted from biomass burning was measured using samples of smoke collected from large-scale laboratory combustion experiments and from fires typical of slash burning of primary forest and of pasture burning in the Brazilian Amazon. In laboratory…
Person:
Year: 2000
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: C - carbon, CH4 - methane, Brazil
The production of residual white ash patches within wildfires represents near-complete combustion of the available fuel and releases a considerable quantity of gases to the atmosphere. These patches are generally produced from combustion of large downed woody debris (LDWD) such…
Person:
Year: 2005
Type: Document
Source: FRAMES, TTRS
Topic(s): Communications, Emissions and Smoke, Fire Behavior, Fire Effects, Fuels, Intelligence, Mapping, Monitoring and Inventory
Region(s): International
Keywords: C - carbon, remote sensing, burned area, savannas, Africa, DWD - downed woody debris, white ash, Fraxinus americana, Botswana, air quality, ash, biomass, combustion, experimental fire, fire management, fuel loading, gases, ignition, litter, national parks, particulates, range management, snags, South Africa, statistical analysis, surface fires, wildfires, woody fuels, Zambia