Type
Topic
Region
Year
Displaying 251 - 270 of 270
Size-resolved effective density, mixing state, and hygroscopicity of smoke particles from five kinds of agricultural residues burning were characterized using an aerosol chamber system, including a volatility/hygroscopic tandem differential mobility analyzer (V/H-TDMA) combined…
Person:
Year: 2016
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke
Region(s): International
Keywords: smoke effects, Asia, China, aerosols, agriculture, air quality, C - carbon, particulates, fire management, smoke management, Smoke Particle, density, Volatility, hygroscopicity, APM, V, H-TDMA
Non-deforestation fire - i.e., fire that is typically followed by the recovery of natural vegetation - is arguably the most influential disturbance in terrestrial ecosystems, thereby playing a major role in carbon exchanges and affecting many climatic processes. The radiative…
Person:
Year: 2016
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: combustion, fire regimes, wildfires, Canada, air quality, C - carbon, carbon dioxide, fossils, fire management, forest management, land-cover change, Earth System, vegetation dynamics, Energy-Balance, future forest, 20th Century, ecosystems
Wildfire is the largest disturbance affecting peatland ecosystems and can typically result in the combustion of 2-3kgCm-2 of near-surface peat. We hypothesized that organic soil burn severity, as well as the associated carbon emissions, varies significantly as a function of…
Person:
Year: 2016
Type: Document
Source: TTRS
Topic(s): Fire Effects, Fire Occurrence, Emissions and Smoke, Aquatic
Region(s): International
Keywords: fire intensity, peat fires, wildfires, Alberta, Canada, C - carbon, organic soils, peat, water, fire management, watershed management, bogs, boreal forests, peatlands, peatland, wildfire, C - carbon, boreal, organic soil, groundwater, smouldering
Forests represent an important role in the control of atmospheric emissions through carbon capture. However, in forest fires, the carbon stored during photosynthesis is released into the atmosphere. The carbon quantification, in forest burning, is important for the development…
Person:
Year: 2016
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire
Region(s): International
Keywords: experimental fires, smoke effects, Amazon, Brazil, South America, biomass, carbon dioxide, CO - carbon monoxide, fire management, forest management, smoke management, Amazonia Forest Fires, CO2 emissions, CO emissions, biomass consumption, Clearing Experiment, biomass combustion, fuel consumption, C - carbon, Brazil, deforestation, dynamics, Rondonia, Manaus, gases
Boreal and subarctic peatlands comprise a carbon pool of 455 Pg that has accumulated during the postglacial period at an average net rate of 0.096 Pg/yr (1 Pg = 1015g). Using Clymo's (1984) model, the current rate is estimated at 0.076 Pg/yr. Longterm drainage of these peatlands…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke
Region(s): Alaska
Keywords: biomass, boreal, carbon cycle, CH4 - methane, climate warming, CO2 - carbon dioxide, greenhouse effect, mires, peatlands, sub-arctic
This study investigates the impact of postulated greenhouse warming on the severity of the forest fire season in Canada. Using CO2 levels that are double those of the present (2 X CO2), simulation results from three general circulation models (Geophysical Fluid Dynamics…
Person:
Year: 1991
Type: Document
Source: FRAMES, TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Occurrence, Models, Weather
Region(s): Alaska, International
Keywords: Canada, wildfire, climate change, CO2 - carbon dioxide, global warming, British Columbia, climatology, drought, ecosystem dynamics, fire frequency, fire intensity, fire regimes, fire size, humidity, New Brunswick, Ontario, precipitation, Saskatchewan, season of fire, temperature, weather observations
Only in recent times, systematic attention has been paid to the occupational health of forest firefighters and workers who manage prescribed fire. Two parts of the effort to learn the impact on worker health are medical observation of those workers, and study of occupational…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Prescribed Fire, Safety
Region(s): Unknown
Keywords: vegetation, toxicity, firefighter health
Biomass burning is a major source of emissions to the atmosphere. Some of these emissions may change global climate. This paper uses combustion efficiency as an independent variable for predicting emission factors for, among others, carbon monoxide, carbon dioxide, methane, and…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire History, Fuels, Models, Prescribed Fire
Region(s): California, Great Basin, Northwest
Keywords: air quality, ash, biomass, C - carbon, carbon dioxide, CO - carbon monoxide, chaparral, chemical elements, combustion, ecosystem dynamics, fire management, gases, climate change, CH4 - methane, N - nitrogen, Oregon, smoke effects, statistical analysis, wildfires
We used a replicated watershed experiment to determine the effects of site preparation burning on mixed hardwood ecosystems. Response measurements included nutrient cycling proecesses and site productivity, soil erosion and water quality, chemistry and quantity of smoke…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Hazard and Risk, Prescribed Fire
Region(s): Southern
Keywords: Appalachian Mountains, biomass, calcium, C - carbon, chemistry, ecosystem dynamics, erosion, fire hazard reduction, fuel accumulation, hardwood forests, herbaceous vegetation, magnesium, N - nitrogen, nutrient cycling, plant growth, population ecology, post fire recovery, K - potassium, resprouting, seedlings, soil erosion, species diversity (plants), water, water quality, watershed management, watersheds, woody plants
Various studies report changes in phosphorus and nitrogen concentrations in surface waters after wildfires; however, we have found no reports which include nutrient data collected during actual wildfire activity. We had an opportunity to collect water chemistry data from several…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Aquatic, Emissions and Smoke, Fire Behavior, Fire Ecology
Region(s): Northern Rockies
Keywords: ash, catastrophic fires, chemistry, fire intensity, gases, hydrology, leaching, lightning caused fires, Montana, N - nitrogen, nutrients, particulates, phosphorus, pine forests, Pinus contorta, plant diseases, post fire recovery, sampling, smoke effects, streams, volatilization, water, watershed management, watersheds, wildfires, wind
The effects of a late-summer prescribed burn on the chemistry of a second-order mountain stream in the south-western Cape, South Africa, were investigated. Nitrate concentrations in stream water were significantly higher during the winter of the post-burn year. Increased…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Aquatic, Emissions and Smoke, Fire Effects, Prescribed Fire
Region(s): International
Keywords: Africa, calcium, chemical elements, chemistry, hydrogen, magnesium, mountains, N - nitrogen, nutrient cycling, nutrients, K - potassium, precipitation, runoff, soil nutrients, South Africa, streams, water, water quality
This study tests whether or not foliar flammability is related to resource-use and anti-herbivore defence strategies of plant species. We measured the flammability (at 400 °C) of 1640 dry and fresh leaves across 115 common native New Zealand woody and herbaceous species…
Person:
Year: 2016
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects
Region(s): International
Keywords: New Zealand, functional traits, herbivory, leaf nitrogen content, leaf phosphorus, total phenols, tannins, flammability, fire adaptations, ignition, laboratory fires, leaves, N - nitrogen, phosphorus, plant nutrients, plant physiology, fire management, forest management
Today biomass burning is accepted to be an important source of many trace gases affecting atmospheric chemistry (Crutzen et al., 1979; Cofer et al., 1988a; Radke et al., 1988; Crutzen et al., 1990). Despite its global significance and in contrast to fossil fuel use, where…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: C - carbon, laboratory fires, trace gas emissions, biomass burning, N - nitrogen, laboratory experiments
Much recent research has investigated the effects of burning on mature black spruce (Picea mariana) forests in interior Alaska, however little research has focused on how frequent reburning affects soil organic layer (SOL) vulnerability in these ecosystems. We compared organic…
Person:
Year: 2016
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): Alaska
Keywords: fire frequency, soils, C - carbon, succession, fire frequency, Picea mariana, boreal forest, soil organic layer, Interior Alaska, fire severity, climate change, C - carbon, permafrost, communities, resilience, ecosystems, interval
Many potent air toxins are in the smoke of burning forest and range biomass. Firefighters are exposed to the smoke of both wildfire and prescribed fire. A comprehensive assessment of these exposures is not yet possible due to insufficient data. Preliminary data on firefighter…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Prescribed Fire
Region(s): Northwest
Keywords: air quality, biomass, broadcast burning, C - carbon, CO - carbon monoxide, chemical compounds, clearcutting, coniferous forests, fire suppression, forest management, fuel appraisal, land management, logging, national forests, particulates, rangelands, smoke management, statistical analysis, toxicity, Washington, wildfires
Biomass burning effects the African continent all year round. In the dry season there are widespread savannah fires, and there are always some domestic and agricultural fires. Here we present measurement of particulate black carbon, which is an unambiguous indicator of…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Mapping, Prescribed Fire
Region(s): International
Keywords: Africa, biomass, C - carbon, combustion, droughts, old growth forests, particulates, pH, precipitation, sampling, savannas, statistical analysis, tropical forests, water, weather observations
Three months after wildfire (Nov. 1989), we tagged 5 resprouts, 20 seedlings and 5 adults of Rhus laurina in the Santa Monica Mountains of California. Seedlings and resprouts were intermixed; adults were adjacent the burn site (stand age 15 years). The lowest midday leaf water…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin
Keywords: age classes, C - carbon, chaparral, chemistry, gases, leaves, mountains, photosynthesis, plant growth, post fire recovery, resprouting, Rhus, Rhus laurina, seedlings, shrubs, southern California, water, wildfires
Climate, vegetation, and fire are interrelated so that any change in one will affect the others. Increases in greenhouse gases, especially carbon dioxide, are expected to increase average surface temperatures and alter precipitation patterns. These changes will alter numerous…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence, Fuels, Hazard and Risk, Models, Weather
Region(s): Rocky Mountain
Keywords: agriculture, air quality, biogeochemical cycles, biogeography, biomass, C - carbon, carbon dioxide, chemistry, community ecology, competition, coniferous forests, deserts, distribution, ecosystem dynamics, energy, fire danger rating, fire frequency, fire regimes, fuel types, gases, climate change, nutrient cycling, particulates, pine forests, Pinus albicaulis, Pinus contorta, plant communities, plant growth, population ecology, precipitation, Pseudotsuga menziesii, radiation, rainforests, season of fire, shrublands, slash and burn, species diversity (plants), temperature, water, wildfires
Peat cores collected from two locations in eastern North Carolina (NC, USA) were burned in a laboratory facility to characterize emissions during simulated field combustion. Particle and gas samples were analyzed to quantify emission factors for particulate matter (PM2.5),…
Person:
Year: 2016
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Southern
Keywords: gas emissions, particle emissions, peat, North Carolina, laboratory fires, PCDD - polychlorinated dibenzo-p-dioxins, PCDF - polychlorinated dibenzofurans, PAH - polycyclic aromatic hydrocarbons, PM2.5, CO - carbon monoxide, C - carbon
Climate Change Implications for Wildfire in Alaska presented by Randi Jandt. This webinar was part of a series hosted by the Alaska Natural Resource and Outdoor Education (ANROE) Association titled "Fire in a Changing Climate for Educators." ANROE provided workshops during the…
Person: Jandt
Year: 2016
Type: Media
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Occurrence
Region(s): Alaska
Keywords: climate change, fire season, feathermoss, air temperature, fire size, acres burned, precipitation, rainfall, lightning, annual area burned, fire-on-fire interaction, vegetation change, permafrost, C - carbon, air quality, boreal forest