Type
Topic
Region
Year
Displaying 326 - 340 of 340
To characterize the impact of the October 2007 wildfires on the air quality of Los Angeles, integrated ambient particulate matter (PM) samples were collected near the University of Southern California between October 24 and November 14, 2007. Samples were analyzed for different…
Person:
Year: 2009
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California
Keywords: air quality, biomass burning, C - carbon, combustion, fire management, Foehn winds, gases, hydrocarbons, Mediterranean habitats, O - oxygen, particulates, PM - particulate matter, pollution, K - potassium, smoke management, wildfires, organic carbon
Wildfires have major effects on forest dynamics, succession and the carbon cycle in the boreal biome. They are a significant source of carbon emissions, and current observed changes in wildfire regimes due to changes in climate could affect the balance of the boreal carbon pool…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence
Region(s): International
Keywords: boreal forest, NDVI - Normalized Difference Vegetation Index, regeneration, remote sensing, MODIS - Moderate Resolution Imaging Spectroradiometer, post-fire recovery, Siberia, wildfire, age classes, air quality, Asia, C - carbon, coniferous forests, cover, deciduous forests, disturbance, evergreens, fire adaptations, fire frequency, fire management, fire size, forest management, leaves, moisture, Russia, statistical analysis, succession, vegetation surveys
This study quantifies the short-term effects of low-, moderate-, and high-severity fire on carbon pools and fluxes in the Eastern Cascades of Oregon. We surveyed 64 forest stands across four fires that burned 41,000 ha (35%) of the Metolius Watershed in 2002 and 2003,…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence
Region(s): Northwest
Keywords: carbon balance, disturbance, Pinus ponderosa, ponderosa pine, heterotrophic respiration, mixed severity fire regimes, NEP - Net Ecosystem Productivity, Oregon, NPP - net primary production, Cascade Range, Abies grandis, Arctostaphylos patula, biomass, Calamagrostis rubescens, Calocedrus decurrens, C - carbon, Ceanothus velutinus, combustion, coniferous forests, decomposition, ecosystem dynamics, Elymus elymoides, Epilobium angustifolium, Festuca idahoensis, fire frequency, fire intensity, fire management, fire regimes, fire size, forest management, Larix occidentalis, lightning caused fires, mortality, overstory, Pinus, Pinus contorta, population density, Pteridium aquilinum, Purshia tridentata, sloping terrain, stand characteristics, Vicia americana, watersheds, wildfires, wood
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
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
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
Combustion aerosol particles from boreal forest fires were quantified to facilitate investigation of the potential effects of increased fire activity caused by global warming, by providing data inputs for global and regional climate modelling of the direct and indirect effects.…
Person:
Year: 2004
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects, Fire Occurrence, Fuels, Prescribed Fire
Region(s): Alaska, International
Keywords: Canada, crown fires, jack pine, Pinus banksiana, black spruce, ICFME - International Crown Fire Modeling Experiment, Picea mariana, Northwest Territories, aerosols, air quality, air temperature, boreal forest, C - carbon, climatology, combustion, duff, experimental areas, fire exclusion, fire frequency, fire management, fire size, fuel accumulation, fuel management, fuel loading, fuel moisture, climate change, humidity, overstory, particulates, smoke effects, smoke management, statistical analysis, understory vegetation, wind
Wildfires represent one of the most common disturbances in boreal regions, and have the potential to reduce C, N, and Hg stocks in soils while contributing to atmospheric emissions. Organic soil layers of the forest floor were sampled before and after the FROSTFIRE experimental…
Person:
Year: 2004
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Alaska
Keywords: boreal forest, C - carbon, combustion, N - nitrogen, soil, ash, black spruce, duff, experimental burn, FERA - Fire and Environmental Research Applications Team, Frostfire, Hg - mercury, feathermoss, soil properties
As a source of atmospheric carbon, biomass burning emissions associated with deforestation in the Amazon are globally significant. Once deforested, these lands continue to be sources of substantial burning emissions for many years due to frequent pasture burning. The objective…
Person:
Year: 2004
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Prescribed Fire
Region(s): International
Keywords: C - carbon, land use, Amazon, Brazil, Rondonia, trace gas emissions, regenerating forest, biomass burning, land-cover change, pasture, primary forest
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Person:
Year: 2004
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Prevention, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: chemical compounds, chemistry, combustion, fire injuries (humans), fire management, firefighting personnel, flammability, gases, health factors, heat effects, O - oxygen, toxicity
Person:
Year: 2004
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fuels, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: blowups, carbon dioxide, catastrophic fires, charcoal, combustion, coniferous forests, crown fires, fire control, fire intensity, fire management, fire suppression, fuel appraisal, fuel types, heat, heat effects, heavy fuels, low intensity burns, O - oxygen, physics, Picea, Pinus, Populus, Quercus, radiation, slash, smoke behavior, spot fires, Tsuga, Washington, wilderness fire management, wildfires, windthrows
Fire is a worldwide phenomenon that appears in the geological record soon after the appearance of terrestrial plants. Fire influences global ecosystem patterns and processes, including vegetation distribution and structure, the carbon cycle, and climate. Although humans and fire…
Person:
Year: 2009
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Prevention, Fuels, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: fire management, fire regimes, carbon cycle, climate change, ecosystem processes, vegetation distribution, vegetation structure, aerosols, agriculture, biomass burning, C - carbon, CO2 - carbon dioxide, climatology, combustion, crown fires, deforestation, ENSO - El Nino Southern Oscillation, distribution, fine fuels, fire control, fire protection, fire resistant plants, fire size, grazing, human caused fires, ignition, invasive species, O - oxygen, plant communities, soil leaching, surface fires, vegetation surveys, volatilization, wildfires