Type
Topic
Region
Year
Displaying 1 - 25 of 90
We present evidence that fire suppression may have contributed to the fungal decline of torreya (Torreya taxifolia). During the 1950's torreya suffered a catastrophic die-back. The torreya die-back was probably caused by needle pathogens induced through environmental stress.…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: conifers, fire frequency, fire suppression, fungi, light, microorganisms, needles, plant diseases, plant growth, seed germination, smoke effects, succession, Tall Timbers Research Station, threatened and endangered species (plants), topography, Torreya taxifolia, toxicity, wildfires
To trully allow fires to play their natural role in wilderness ecosystems, it is sometimes necessary to have large fires of long duration. Large fires are ecologically significant events that drive many other ecosystem processes. However, these fires pose significant management…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire History, Fire Occurrence, Fuels, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Abies concolor, Abies magnifica, charcoal, coniferous forests, cutting, dendrochronology, ecosystem dynamics, fire frequency, fire management, fire scar analysis, fire size, forest management, lightning caused fires, Montana, national parks, Pinus albicaulis, Pinus contorta, Pinus jeffreyi, Pinus ponderosa, prescribed fires (chance ignition), prescribed fires (escaped), Sequoiadendron giganteum , Sierra Nevada, vegetation surveys, wilderness areas, wildfires, Wyoming, Yosemite National Park
From the Conclusions ... 'In conclusion, let me repeat that delivering fire information at the proper time and tailoring it to meet the needs of those affected is critical. Keep in mind that you are dealing with real people who have the same loves, fears, and suspicions that you…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Prescribed Fire, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: education, fire damage (property), fire injuries (humans), fire management, firebreaks, livestock, national parks, prescribed fires (chance ignition), public information, wildfires
From the text ... 'Wilderness management is important to a large segment of the public. The 1988 fires showed that clearly. It is also clear that fire is an integral part of the wilderness. Educating the public, based on solid research, will be an important component of…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire History, Fire Prevention, Hazard and Risk, Intelligence, Outreach, Social Science
Region(s): Rocky Mountain
Keywords: catastrophic fires, droughts, education, erosion, fire case histories, fire management, fire regimes, fire suppression, land management, national parks, natural areas management, public information, recreation, smoke effects, wilderness areas, wilderness fire management, wildfires, wildlife habitat management, Wyoming, Yellowstone National Park
From the Conclusions ... 'Recent amendments to the Clean Air Act have given more explicit attention to prescribed fire as a controllable source of air pollution. In the development and implementation of State and local air pollution control programs, prescribed fire has also…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Regulations and Legislation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fire management, national forests, national parks, pollution, smoke effects, smoke management, state forests, state parks, wilderness areas, wildfires
The challenge for resource managers is to understand and appreciate the wilderness resource. We must embrace a philosophy that allows natural fire to play its natural role, within social and political realities. As we alter the natural processes, we alter the very essence of…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Prevention, Restoration and Rehabilitation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire management, fire size, fire suppression, forest management, suppression, wildfires
From the text ... 'A major problem that land management agencies must overcome is that air quality agency staff usually do not have an understanding for the needs and uses of prescribed fire. While air quality agency staff have excellent understanding of control equipment for…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Prescribed Fire, Regulations and Legislation
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fire management, fire suppression, fuel loading, land management, particulates, pollution, smoke management, species diversity (plants)
From the Summary ... 'Prescribed natural fire programs adjacent to heavily populated areas are threatened by conflicting laws. Until relief is found through new legislation, wilderness fire managers must be constantly aware of smoke drift and its impact on adjacent areas. It…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Prevention, Fuels, Hazard and Risk, Prescribed Fire, Regulations and Legislation, Wildland-Urban Interface (WUI)
Region(s): California, Great Basin
Keywords: agriculture, air quality, ecosystem dynamics, fire hazard reduction, fire management, fire suppression, forest management, fuel management, land management, national forests, national parks, particulates, rate of spread, Sierra Nevada, smoke effects, smoke management, Yosemite National Park
The decision process involved in developing any plan to manage a prescribed natural fire must consider several divergent resource and management goals. In many cases, these fires may be projected to be, and eventually become, large and long-duration events. The exact final fire…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Mapping, Prescribed Fire, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, fire intensity, fire management, fire size, land management, private lands, rate of spread, recreation, wilderness areas, wildfires
Area burned and smoke emissions were compared between the presettlement period (before 1935) and the recent period (1979-90) of prescribed natural fire in the Selway-Bitterroot Wilderness. Presettlement area burned was estimated to be 1.7 times that during the recent period. By…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire History, Fire Prevention, Hazard and Risk, Mapping
Region(s): Northern Rockies
Keywords: Abies grandis, catastrophic fires, coniferous forests, crown fires, elevation, fire hazard reduction, fire intensity, fire management, fire regimes, fire size, fire suppression, forest management, GIS, Larix lyallii, Montana, Picea engelmannii, Pinus albicaulis, Pinus contorta, Pinus ponderosa, presettlement fires, Pseudotsuga menziesii, Selway-Bitterroot Wilderness Areas, suppression, surface fires, Thuja plicata, understory vegetation, wildfires
We know that the natural fire regimes of park and wilderness ecosystems are extremely variable. Past management practices (primarily fire exclusion), other resource constraints (endangered species, air quality), location and shape of preserves, and new natural fire policy…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Prevention, Fuels, Prescribed Fire, Restoration and Rehabilitation
Region(s): Northwest
Keywords: Abies lasiocarpa, air quality, chaparral, coniferous forests, ecosystem dynamics, fire exclusion, fire intensity, fire management, fire regimes, fire suppression, flame length, forest management, fuel breaks, fuel loading, fuel management, Pinus albicaulis, Pinus ponderosa, prescribed fires (chance ignition), wilderness fire management, wildfires
[no description entered]
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Hazard and Risk, Models, Prescribed Fire, Restoration and Rehabilitation
Region(s): Great Basin, Northwest
Keywords: air quality, biomass, CO - carbon monoxide, combustion, duff, fire hazard reduction, fire management, forest management, fuel loading, fuel management, fuel models, land use, natural areas management, nutrients, particulates, smoke effects, smoke management
National Weather Service (NWS) observations were compared to Florida Highway Patrol accident site visibility reports to produce a Low Visibility Occurrence Risk Index (LVORI). When LVORI is compared with NWS visibility observations, significant differences are found. These…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Weather
Region(s): Southern
Keywords: smoke behavior, smoke effects, wildfires, air quality, roads, Florida, fire management, smoke management
The Minimum Acceptable Visibility (MAV) table was originally provided by the California Highway Patrol in response to an inquiry relative to acceptable highway visibility reduction caused by smoke. The table was included in chapter two of the 1991 edition of the National Park…
Person:
Year: 1991
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Prescribed Fire, Safety, Wildland-Urban Interface (WUI)
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fire smoke, roads, road corridor, road, smoke effects, smoke-induced fog, superfog, smoke
Smoke derived from burning a natural mixture of plant species stimulates the germination of seed from a wide range of plants. It is not known, however, whether smoke derived from individual species is equally effective in promoting seed germination. The germination of Themeda…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology
Region(s): International
Keywords: Acalypha, Africa, Aristida, Buddleias, Cymbopogon, Diospyros, ecosystem dynamics, Erica, fire dependent species, germination, grasslands, Helichrysum, laboratory fires, leaves, Loudetia simplex, Metalasia muricata, Miscanthus, Monocymbium, Protea, Pteridium aquilinum, Rubus, seed germination, smoke effects, South Africa, Themeda, Themeda triandra, Trachypogon spicatus
Samples (170) of biomass combustion smoke were obtained in Brazilian tropical rainforest and savannah during August-September 1992. Speciation of the ionic fraction of fine (d > 2 :m) and coarse (15 :m > d > 2:m) mode particles was achieved using ion chromatography, and…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fuels, Prescribed Fire, Restoration and Rehabilitation
Region(s): International
Keywords: aerosols, agriculture, air quality, Amazon, biomass, Brazil, chemical elements, combustion, deforestation, ecosystem dynamics, land management, litter, nutrients, overstory, rainforests, savannas, smoke effects, South America, statistical analysis
Lightning causes one third of the 9000 wildfires that occur in Canada. Annually, these lightning-caused fires account for 90% of the area burned and cost Canadians at least 150 million dollars in suppression costs and values destroyed. Unlike the fires caused by human negligence…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Climate, Economics, Emissions and Smoke, Fire Behavior, Fire Prevention, Fuels, Models, Weather, Economics
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Abies spp., Acer, Betula, boreal forests, Canada, computer programs, duff, fine fuels, fire control, fire management, fire suppression, firebrands, flammability, fuel loading, fuel models, fuel moisture, fuel types, hardwood forests, humidity, ignition, lightning, lightning caused fires, lightning effects, litter, moisture, physics, Picea, pine forests, pine hardwood forests, pine, Pinus strobus, Populus tremuloides, precipitation, rate of spread, smoke behavior, statistical analysis, storms, temperature, wildfires, wind, woody fuels
From the text... 'A brief report by four scientists of The Nature Conservancy in Florida [about a method for propagating wiregrass included the following steps] ... Collect seeds from central Florida sites five to eight months after summer burn. Place seeds on moist filter paper…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Prescribed Fire
Region(s): Southern, International
Keywords: Apalachicola Bluffs, Aristida stricta, central Florida, conifers, European settlement, evergreens, fire adaptations (animals), fire adaptations (plants), Florida, flowering, Gopherus polyphemus, land management, lightning caused fires, north Florida, Pinus palustris, plant diseases, population ecology, regeneration, reproduction, sandhills, season of fire, seed production, seeds, smoke effects, species diversity (animals), species diversity (plants), threatened and endangered species (plants), Torreya, Torreya taxifolia
Prescribed fire is used to treat roughly 5 percent (1,500,000 acres) of Florida*s wildland each year. Superimposed on this fire-maintained landscape is one of the fastest growing populations in the United States. Much of this population increase is a result of immigration from…
Person:
Year: 1995
Type: Document
Source: TTRS
Topic(s): Administration, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Effects, Fire Prevention, Fuels, Hazard and Risk, Intelligence, Outreach, Planning, Prescribed Fire, Regulations and Legislation, Social Science, Wildland-Urban Interface (WUI)
Region(s): Southern
Keywords: aesthetics, burning permits, education, fire adaptations (animals), fire adaptations (plants), fire dependent species, fire hazard reduction, fire regimes, flammability, Florida, forest management, fuel loading, land use, landscape ecology, liability, natural resource legislation, public information, smoke management, wilderness areas, wilderness fire management, wildfires
The character of most forest ecosystems in the southern U.S. has been shaped by fire. Indians and early settlers burned the woods for many purposes. After a period of trying to exclude fire, foresters recognized its value as an ecological force and its necessity as a management…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Economics, Emissions and Smoke, Fire Behavior, Fire Ecology, Fire History, Fuels, Prescribed Fire, Regulations and Legislation, Weather
Region(s): Southern, International
Keywords: air quality, backfires, broadcast burning, carbon dioxide, Colinus virginianus, diseases, ecosystem dynamics, erosion, European settlement, fire exclusion, fire frequency, fire intensity, fire management, fire regimes, firebreaks, firing techniques, forage, forest management, fuel accumulation, grazing, hardwoods, histories, lightning caused fires, logging, low intensity burns, moisture, Native Americans, Odocoileus virginianus, overstory, particulates, pine forests, pine, Pinus elliottii densa, Pinus palustris, Pinus rigida, Pinus serotina, pollution, regeneration, season of fire, seedlings, site treatments, smoke effects, stand characteristics, temperature, topography, understory vegetation, wildlife, wildlife habitat management, wind, wood
Equations for predicting duff and large woody fuel (7.6+ cm) consumption are summarized. Dependent variables are duff depth reduction, percentage duff depth reduction, percentage mineral soil, large fuel diameter reduction, and percentage large fuel reduction. Opportunities to…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Prevention, Fuels, Hazard and Risk, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: Abies grandis, Artemisia tridentata, coniferous forests, conifers, duff, fire hazard reduction, fire management, fuel management, fuel models, grasses, mineral soils, pine forests, Pinus contorta, Pinus monticola, Pinus ponderosa, Pseudotsuga menziesii, wildfires, woody fuels
We studied cross-seasonal changes in pulmonary function and respiratory symptoms in 52 wildland firefighters in Northern California. The mean cross-seasonal change in forced expiratory volume in 1 second (FEVI) was-1.2% (95% confidence interval [CI] -O.5, -2.0%) with a…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fuels, Weather
Region(s): California, Great Basin
Keywords: air quality, backfires, CO - carbon monoxide, combustion, dust, fire equipment, fire intensity, fire management, fire suppression, fuel types, gases, national forests, northern California, particulates, smoke effects, smoke management, topography, wilderness areas, wilderness fire management, wildfires
A feasibility study has been carried out of the analysis of total condensate (at -50 °C) of smoke from smoldering combustion of wood. All of the phenol and furan components in the aqueous condensate were extracted into methylene chloride and the extract was analyzed by GC/MS.…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Effects, Fire Prevention, Hazard and Risk
Region(s): Northern Rockies
Keywords: aerosols, air quality, biomass, combustion, combustion chambers, experimental fires, fire suppression, laboratory fires, lignin, Montana, mopping up, Pinus ponderosa, Populus trichocarpa, smoke effects, wood, wood chemistry
A prescribed fire was ignited near Chapleau, western Ontario, Canada, on the afternoon of August 10, 1989. The fire, covering approximately 400 ha, burned vigorously over a period of 3 hours, from 1400 to 1700 EDT, generating a plume cloud structure including a portion…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Emissions and Smoke, Fire Behavior, Fuels, Models, Prescribed Fire
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Canada, distribution, field experimental fires, fire case histories, fire intensity, fire management, fuel loading, lightning, lightning effects, logging, Ontario, physics, site treatments, slash, smoke behavior, smoke effects, smoke management
After the serious smoke inversion conditions on the northern California and southern Oregon fires of 1987 and the Greater Yellowstone Area fires of 1988, the National Wildfire Coordinating Group (NWCG) hosted a conference - 'The Effect of Forest Fire Smoke on Firefighters'-in…
Person:
Year: 1991
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air quality, northern California, Oregon, smoke behavior, smoke effects, Yellowstone National Park