Type
Topic
Region
Year
Displaying 5801 - 5825 of 5842
In order to estimate the production of charcoal and the atmospheric emissions of trace gases volatilized by burning we have estimated the global amounts of biomass which are affected by fires. We have roughly calculated annual gross burning rates ranging between about 5 Pg and 9…
Person:
Year: 1980
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Prescribed Fire, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: carbon flux, carbon budget, gas emissions, biomass burning, air quality, biogeochemical cycles, biogeography, biomass, boreal forests, C - carbon, carbon dioxide, charcoal, dead fuels, deforestation, ecosystem dynamics, forestation, gases, grazing, land use, livestock, moisture, organic matter, savannas, season of fire, statistical analysis, tropical forest, volatilization, wildfires
The objective of this study was to quantify carbon (C) distribution for boreal black spruce (Picea mariana (Mill.) BSP) stands comprising a fire chronosequence in northern Manitoba, Canada. The experimental design included seven well-drained (dry) and seven poorly-drained (wet)…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Occurrence, Fuels, Models
Region(s): Alaska, International
Keywords: boreal forest, Canada, C - carbon, fire, biomass, black spruce, chronosequence, Manitoba, Alnus crispa, Betula glandulosa, Betula papyrifera, coniferous forests, distribution, disturbance, drainage, ecosystem dynamics, fire frequency, fire intensity, fire management, fire regimes, foliage, forest management, ground cover, heavy fuels, Hylocomium, Larix laricina, Ledum groenlandicum, litter, Manitoba, mosses, overstory, Picea, Picea mariana, Pleurozium schreberi, population density, Populus balsamifera, post-fire recovery, Ptilium, regeneration, roots, Rosa, Salix, seedlings, soils, sphagnum, stand characteristics, statistical analysis, succession, understory vegetation, Vaccinium, vegetation surveys, wildfires, woody fuels, woody plants
The contribution of wildfire in peatlands outside of boreal and tropical regions to interannual variability of global carbon emissions has been relatively little studied. There are 0.19 to 0.88 million km^2 of localized peat deposits in the temperate zone (30-50 degrees latitude…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): Eastern
Keywords: C - carbon, fire, North Carolina, peat fires, biomass consumption, greenhouse gases
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
Absorption properties of smokes from laboratory fires that represent prescription hums in the Southern states have been quantified to relate variations in measured absorption parameters to variation in fire conditions and to estimate emission factors for elemental carbon.…
Person:
Year: 1984
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Prescribed Fire
Region(s): Southern
Keywords: combustion, absorption, aerosol absorption, aerosol radiative effects, optical properties, PM - particulate matter, smoke properties, visibility, forest fires, aerosols, C - carbon, fire hazard reduction, fire intensity, fire management, flame length, fuel loading, fuel moisture, fuel types, laboratory fires, particulates, pine forests, Pinus, smoke behavior, smoke management, wildfires
We used a new, 100-year, 1 × 1° global fire map and a carbon cycle model (CASA) to provide a yearly gridded estimate of the temporal trend in carbon emissions due to wildfires through the 20th century. 2700–3325 Tg C y−1 burn at the end of the 20th century, compared to 1500–2700…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: C - carbon, biomass burning
There were large interannual variations in burned area in the boreal region (ranging between 3.0 and 23.6x106 ha yr-1) for the period of 1992 and 1995-2003 which resulted in corresponding variations in total carbon and carbon monoxide emissions. We estimated a range of carbon…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels
Region(s): Alaska
Keywords: boreal forest, C - carbon, duff consumption, fire severity, wildland fire, boreal region, burned area, carbon emissions, CO - carbon monoxide, trace gas emissions
Fire strongly influences carbon cycling and storage in boreal forests. In the near-term, if global warming occurs, the frequency and intensity of fires in boreal forests are likely to increase significantly. A sensitivity analysis on the relationship between fire and carbon…
Person:
Year: 1995
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Models
Region(s): Alaska, International
Keywords: boreal forest, fire, carbon cycle, climate change, global warming, biomass, Canada, C - carbon, distribution, fire frequency, fire intensity, fire models, fire regimes, nutrient cycling, soil nutrients
The NOAA 12 advanced very high resolution radiometer detected extensive forest fires in boreal Siberia and northern Mongolia during April through October 1998, a year of extremely dry weather, in particular, in the Russian Far East. Analysis of the satellite data has been…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Mapping
Region(s): Alaska, International
Keywords: boreal forest, C - carbon, fire, biomass consumption, carbon release, radiometer, Siberia
Russian boreal forests are subject to frequent wildfires. The resulting combustion of large amounts of biomass not only transforms forest vegetation, but it also creates significant carbon emissions that total, according to some authors, from 35 to 94 Mt C per year. These carbon…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): International
Keywords: boreal forest, C - carbon, fire damage, NDVI - Normalized Difference Vegetation Index, remote sensing, carbon emissions, Russia, satellite imagery
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
A study was carried out to assess the variability in trace gas emission from several factors and to estimate the immediate impact of fire on carbon exchange. Using geospatial data, a model of emission was developed for three carbon-based gases, CO2, CO, and CH4, released during…
Person:
Year: 2002
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): Alaska
Keywords: boreal forest, C - carbon, wildfire, gases
During the spring and summer of 1994 we monitored soil-atmosphere exchanges of methane and carbon dioxide at upland sites in the Canadian boreal forest near the northern study area (NSA) of the Boreal Ecosystem-Atmosphere Study (BOREAS). The effects of fire on methane and carbon…
Person:
Year: 1997
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, International
Keywords: boreal forest, Canada, C - carbon, black spruce, boreal, CH4 - methane, CO2 - carbon dioxide, gas exchange, Picea mariana
Thinning of forest stands is frequently used to reduce the risk of catastrophic fire. But thinning requires that the refuse (or slash) be removed from the site, which can be done either by burning it or by mastication and dispersal. Either method has long term consequences to…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fuels, Prescribed Fire
Region(s): Rocky Mountain
Keywords: C - carbon, mastication, soil moisture, thinning, Colorado, slash, soil properties
From introduction: Wildfire is a majoar natural disaster in the United States. In 2002, for example, tens of thousands of wildfires occurred that consumed nearly seven million acres of forest and other land cover (NIFC, 2003). Wildfires contribute to increasing atmospheric CO2…
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon
Forest structure and species composition can differ dramatically among stands in the same climatic zone, implying differences in ecosystem function. We used eddy covariance, physiological measurements, forest census plots and simulation models to contrast carbon dynamics and…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models
Region(s): Eastern
Keywords: C - carbon, pine barrens, New Jersey
Description not entered.
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects
Region(s): Eastern
Keywords: C - carbon, pine barrens, New Jersey
Description not entered.
Person:
Year: 2005
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects
Region(s): Eastern
Keywords: C - carbon, fire management, pine barrens, New Jersey
We used NOAA-AVHRR satellite imagery, biomass density maps, fuel consumption estimates, and a carbon emission factor to estimate the total carbon (C) emissions from the spring 1998 fires in tropical Mexico. All eight states in southeast Mexico were affected by the wildfires,…
Person:
Year: 2000
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Effects, Mapping, Prescribed Fire
Region(s): International
Keywords: wildfire, biomass, carbon emissions, FERA - Fire and Environmental Research Applications Team, tropospheric ozone, Mexico, agriculture, air quality, charcoal, C - carbon, Chiapas, climatology, cover, deforestation, digital data collection, distribution, drought, ecosystem dynamics, ENSO - El Nino Southern Oscillation, evapotranspiration, evergreens, fire injury, fire management, fire management planning, fire size, fire suppression, fragmentation, grasslands, greenhouse gases, habitat conversion, human caused fires, JFSP - Joint Fire Science Program, land use, mortality, photography, overstory, Pinus, plantations, population density, precipitation, Quercus, remote sensing, savannas, storms, tropical forest, understory vegetation, winds
In Florida, natural communities require periodic fires for maintenance of their ecological integrity. Because of public concerns, wildfires can no longer be allowed to perform this mandatory function so prescribed burning is essential to manage these plant and animal communities…
Person:
Year: 2003
Type: Document
Source: FRAMES, TTRS
Topic(s): Administration, Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Prevention, Fuels, Hazard and Risk, Intelligence, Mapping, Outreach, Planning, Prescribed Fire, Regulations and Legislation
Region(s): Southern
Keywords: Florida, aesthetics, allelopathy, biogeography, burning permits, C - carbon, catastrophic fires, climatology, community ecology, ecosystem dynamics, education, environmental impact analysis, European settlement, fire control, fire damage (property), fire danger rating, fire dependent species, fire exclusion, fire injuries (animals), fire injuries (humans), fire injuries (plants), fire intensity, fire management, fire management planning, fire protection, fire suppression, firing techniques, flame length, flatwoods, fuel accumulation, fuel moisture, fuel types, herbaceous vegetation, humidity, ignition, incendiary fires, insects, land management, landscape ecology, liability, Native Americans, natural areas management, natural resource legislation, nutrient cycling, pine forests, Pinus palustris, plant communities, plant diseases, population density, post-fire recovery, escaped prescribed fires, private lands, public information, rate of spread, reforestation, scrub, season of fire, smoke effects, smoke management, state forests, state parks, temperature, US Forest Service, vegetation surveys, wilderness fire management, wildfires, wind
As part of the Russian FIRE BEAR (Fire Effects in the Boreal Eurasia Region) Project, replicated 4-ha experimental fires were conducted on a dry Scotch pine (Pinus sylvestris)/lichen (Cladonia sp.)/feathermoss (Pleurozeum schreberi) forest site in central Siberia. Observations…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects
Region(s): International
Keywords: boreal forest, C - carbon, fire intensity, fire regimes, fire return interval, aerosols, emissions, experimental burn, fire monitoring, Pinus sylvestris, Siberia, Scots pine, FIRE BEAR Project
In this study we examine the molecular organic constituents (C8 to C40 lipid compounds) collected as smoke particles from a Canadian boreal forest prescribed burn. Of special interest are (1) the molecular identity of polar organic aerosols, and (2) the amount of polar organic…
Person:
Year: 1996
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): Alaska, International
Keywords: boreal forest, Canada, C - carbon, fire, smoke emissions, aerosols, atmospheric science, biomass burning
Scaling biogeochemical processes to regions, continents, and the globe is critical for understanding feedbacks between the biosphere and atmosphere in the analysis of global change. This includes the effects of changing atmospheric carbon dioxide, climate, disturbances, and…
Person:
Year: 2006
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: C - carbon, forest management, carbon sequestration
Wildland fire is a major disturbance in most ecosystems worldwide (Crutzen and Goldammer 1993). The interaction of fire with climate and vegetation over long time spans, often referred to as the fire regime (Agee 1993; Clark 1993; Swetnam and Baisan 1996; Swetnam 1997), has…
Person:
Year: 2007
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, fire regimes, climate change, spatial models, ecosystems, fire models, vegetation models