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Topic
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Displaying 1 - 25 of 60
A simple and rapid bioassay was implemented to detect the germination activity of extracts from soils in pre/post-burn conditions. Soil samples taken from burnt, unburnt and adjacent plots at depths of 0-2,2-4,4-6 and 6-8 cm before and after burning mesic grassland in South…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fuels
Region(s): International
Keywords: fuel loading, fuel moisture, heat effects, smoke effects, seed dormancy, seed germination, seeds, soils, South Africa, Africa, fire management, range management, soil management, grasslands, germination, lettuce seeds, seed bank, smoke residue, smoke-water, soil extracts
Fire affects grassland composition by selectively influencing recruitment. Some exotic species can increase their abundance as a consequence of fire-stimulated seed germination, but response may depend on seed age. Rumex acetosella L. (Polygonaceae, sheep's sorrel) is a…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Fire Ecology, Fire Effects, Emissions and Smoke
Region(s): International
Keywords: heat effects, post fire recovery, smoke effects, age classes, ash, charcoal, invasive species, plant growth, regeneration, seed dormancy, seed germination, Rumex acetosella, Patagonia, Argentina, South America, fire management, range management, grasslands, plant invasion, post-fire recruitment, Rumex acetosella, seed age, sheep's sorrel, soil seed bank
Cyanide is well known for its toxicity towards living organisms. Many plants use cyanide as a defensive agent against herbivores, releasing it through the enzymatic hydrolysis of endogenous cyanogenic compounds. At low concentrations, cyanide has been proposed to have a…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): International
Keywords: smoke effects, chemistry, regeneration, seed germination, toxicity, Anigozanthos, Australia, forest management, smoke management
In the present work, post-burning soil N2O fluxes and related microbial processes were investigated in a Mediterranean shrubland subjected to experimental fires. Nine plots were selected, of which three were used as controls, three were burned with low-intensity fire and three…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Prescribed Fire
Region(s): International
Keywords: experimental fire, fire frequency, fire intensity, low intensity burns, surface fires, air quality, C - carbon, enzymes, N - nitrogen, sampling, soil moisture, soil nutrients, soil organic matter, soil temperature, statistical analysis, Italy, Mediterranean, fire management, soil management, Mediterranean habitats, shrublands, denitrification, fire intensity, nitrification, soil nitrogen
In a future climate scenario forest fire activity over Portugal will substantially increase and consequently area burned and forest fire emissions to the atmosphere are also expected to increase. This study investigated the impact of future forest fire emissions on air quality…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fuels, Models
Region(s): International
Keywords: fire size, fuel loading, wildfires, air quality, climate change, ozone, particulates, pollution, Portugal, Europe, fire management, forest management, climate change, future fire activity, forest fire emissions, air quality modelling, ozone, particulate matter
In order to evaluate the spatial variation of aerosol (particulate matter with aerodynamic diameter £ 10 µm [PM10]) and ozone (O3) concentrations and characterize the atmospheric conditions that lead to O3 and PM10-rich episodes in southern Italy during summer 2007, an intensive…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Weather, Climate
Region(s): International
Keywords: heat effects, wildfires, aerosols, air quality, air temperature, ozone, pollution, radiation, Italy, Europe, fire management, smoke management, deserts, mountainous terrain
Biomass samples representing Amazon forest native species were burned in laboratory experiments. These species were obtained in the deforestation arc, near the town of Alta Floresta, state of Mato Grosso, Brazil. Moisture content values obtained for twigs and pieces of sticks…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Prescribed Fire
Region(s): International
Keywords: biomass burning, experimental fires, CO2 - carbon dioxide, CO - carbon monoxide, deforestation, hydrocarbons, moisture, particulates, Amazon, Brazil, South America, fire management, forest management, smoke management, biomass burning, emission factors, Amazon forest, experimental fires, NOx, hydrocarbons
In many fire-prone ecosystems, seed germination is triggered by heat shock, smoke, ash and charred wood. However, few studies concerning the effect of these fire products on the germination of tropical and subtropical species exist. We assessed the effect of fire products and…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: heat effects, smoke effects, ash, char, seed germination, Mexico, fire management, forest management, montane forests, pine hardwood forests, heat shock, smoke water, pine-oak mixed forest
The MOPITT (Measurements Of Pollution In The Troposphere) CO measurements over a 10-year period (2000-2009) reveal consistently positive trends on the order of 0.13-0.19 x 1016 mol cm-2 per month in CO total column concentrations over the entire globe and the hemispheres. Two…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: biomass burning, wildfires, air quality, carbon dioxide, CO - carbon monoxide, ENSO - El Nino Southern Oscillation, hydrocarbons, CH4 - methane, fire management, MOPITT CO
We examine the impacts of aerosols on regional meteorology due to intense Siberian forest fires occurred in May 2003 using both reanalysis data and global model simulations. Our analysis of the NCEP-DOE reanalysis data shows 99% statistical significant changes in meteorological…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Models, Weather
Region(s): International
Keywords: biomass burning, wildfires, aerosols, Korea, Siberia, Asia, fire management, forest fire aerosols, regional meteorology, climate model, chemistry-transport model
Agricultural residue burning is one of the major causes of greenhouse gas emissions and aerosols in the lndo-Ganges region. In this study, we characterize the fire intensity, seasonality, variability, fire radiative energy (FRE) and aerosol optical depth (AOD) variations during…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Occurrence, Intelligence
Region(s): International
Keywords: biomass burning, cropland fires, fire frequency, fire intensity, fire size, season of fire, aerosols, agriculture, air quality, greenhouse gases, pollution, radiation, remote sensing, India, Asia, fire management, forest management, croplands, FRE - Fire Radiative Energy, agricultural residues, biomass burning, aerosol optical depth variations
Introduction: Environmental contaminants are groups of unwanted, ubiquitous chemicals, found in food via weathering of the earth's crust, combustion (natural or anthropogenic), industrial uses or as unwanted bi-products of manufacturing processes. Evidence suggests that the…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Aquatic, Climate, Emissions and Smoke, Fire Effects, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: fire frequency, wildfires, agriculture, chemical compounds, chemical elements, diseases, disturbance, climate change, health factors, hydrocarbons, toxicity, water, water quality, fire management, land management, environmental contaminants, food, forest fires, human exposure, mercury methylation, water re-use
Firefighters are exposed to known health-damaging air pollutants present in bushfire smoke and poorly managed exposure can result in serious health issues. A better understanding of exposure levels and the major factors influencing exposures is crucial for the development of…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Hazard and Risk, Prescribed Fire, Safety
Region(s): International
Keywords: fire intensity, firefighting personnel, smoke effects, spot fires, wildfires, air quality, CO - carbon monoxide, health factors, pollution, sampling, toxicity, Australia, fire management, smoke management, firefighter, bushfire smoke, exposure, health risk
Smoke is an important abiotic cue for plant regeneration in postfire landscapes. Karrikins are a class of compounds discovered in smoke that promote seed germination and influence early development of many plants by an unknown mechanism. A genetic screen for karrikin-insensitive…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke
Region(s): International
Keywords: post fire recovery, smoke effects, genetics, regeneration, seed germination, seedlings, Australia, smoke management
Biomass burning is often associated with climate oscillations. For example, biomass burning in South-east Asia is strongly linked to El Nino-southern oscillation activity. During October and November of the 2006 El Nino year, a substantial increase in CO mixing ratios was…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire Prevention, Intelligence
Region(s): International
Keywords: biomass burning, peat fires, air quality, CO - carbon monoxide, ENSO - El Nino Southern Oscillation, remote sensing, Australia, Borneo, New Guinea, Sumatra, New Zealand, fire management, tropical regions, AIRS - atmospheric infrared sounder, GFED - Global Fire Emissions Database, pacific ocean, peat burning, voluntary observing ship
Biomass burning and associated emissions of aerosols into the atmosphere play a vital role in atmospheric composition and climate change. During summer of 2007, Greece faced the worst natural disaster recorded in recent decades in terms of human losses, number of fire outbreaks…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fire History, Models
Region(s): International
Keywords: biomass burning, wildfires, aerosols, air quality, radiation, remote sensing, Greece, Europe, fire management, Mediterranean habitats, forest fires, remote sensing, radiative forcing, Peloponnese, Greece
Significant amounts of carbon and nutrients are released to the atmosphere due to large fires in forests. Characterization of the spatial distribution and temporal variation of the intense fire emissions is crucial for assessing the atmospheric loadings of trace gases and…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Intelligence
Region(s): International
Keywords: biomass burning, catastrophic fires, fire intensity, wildfires, air quality, aerosols, iron, nutrients, remote sensing, Russia, Siberia, Asia, fire management, forest management, boreal forests
Coarse woody debris serves many functions in forest ecosystem processes and has important implications for fire management as it affects air quality, soil heating and carbon budgets when it combusts. There is relatively little research evaluating the physical properties relating…
Person:
Year: 2011
Type: Document
Source: FRAMES, TTRS
Topic(s): Emissions and Smoke, Fire Behavior, Fire Ecology, Fire Prevention, Fuels, Models, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: combustion, fine fuels, fuel moisture, fuel loading, fuel types, heavy fuels, ignition, air quality, bark, C - carbon, cover type, decomposition, duff, fungi, litter, overstory, plant physiology, roots, slash, snags, soil temperature, wind, Australia, Costa Rica, Central America, New Zealand, ecosystem dynamics, fire management, forest management, fuel management, coniferous forests, pine hardwood forests, CWD - coarse woody debris, FERA - Fire and Environmental Research Applications Team, thermal properties
Wildland fire is a natural force that has shaped most vegetation types of the world. However, its inappropriate management during the last century has led to more frequent and catastrophic fires. Wildland fires are also recognized as one of the sources of CO2 and other…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Prescribed Fire, Regulations and Legislation
Region(s): International
Keywords: biomass burning, human caused fires, lightning caused fires, wildfires, air quality, carbon dioxide, deforestation, gases, plant growth, Patagonia, Argentina, South America, fire management, forest management, CO2 emissions, Kyoto Protocol, emissions mitigation, biomass growth
Background: During the summer of 2006, a wave of wildfires struck Galicia (north-west Spain), giving rise to a disaster situation in which a great deal of the territory was destroyed. Unlike other occasions, the wildfires in this case also threatened farms, houses and even human…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire History, Fire Occurrence, Safety, Fire Effects, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: fire case histories, fire damage (property), fire injuries (humans), smoke effects, wildfires, health factors, Spain, Europe, fire management
As climate change increases vegetation combustibility, humans are impacted by wildfires through loss of lives and property, leading to an increased emphasis on prescribed burning practices to reduce hazards. A key and pervading concept accepted by most environmental managers is…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence, Fire Prevention, Hazard and Risk, Prescribed Fire
Region(s): International
Keywords: fire adaptations (plants), fire damage (property), fire frequency, fire hazard reduction, fire injuries (humans), fire resistant plants, smoke effects, wildfires, conservation, flowering, resprouting, seed germination, serotiny, Australia, ecosystem dynamics, fire management, forest management, Mediterranean habitats
Ozone dynamics depend on meteorological characteristics such as wind, radiation, sunshine, air temperature and precipitation. The aim of this study was to determine ozone trajectories along the northern coast of Portugal during the summer months of 2005, when there was a spate…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Fire Effects, Emissions and Smoke
Region(s): International
Keywords: smoke effects, wildfires, air quality, diseases, health factors, ozone, Portugal, Europe, fire management, ozone, respiratory disease, cardiovascular disease, meteorological conditions
From the text ... 'Brazil's continued struggles with widespread wildfires highlight the country's need for focused fire managedment policies geared to its incredibly diverse ecosystem.'
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Fire Ecology, Hazard and Risk, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: Brazil, cerrado, ecosystem dynamics, fire damage (property), fire frequency, fire hazard reduction, fire injuries (animals), fire intensity, fire management, fire regimes, fire size, fire suppression (aerial), forest management, fragmentation, post fire recovery, South America, species diversity (animals), species diversity (plants), tropical forests, wildfires
Forest fires have major impact on ecosystems and greatly impact the amount of greenhouse gases and aerosols in the atmosphere. This paper presents an overview in the forest fire detection, emission estimation, and fire risk prediction in China using satellite imagery, climate…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Climate, Emissions and Smoke, Fuels, Hazard and Risk, Intelligence, Models
Region(s): International
Keywords: wildfires, aerosols, biomass, climate change, greenhouse gases, moisture, remote sensing, vegetation surveys, China, Asia, fire management, forest management, forest fire detection, fire emission estimation, forest fire risk model, satellite remote sensing, China
We estimate fine particulate matter (PM2.5) concentrations daily using MODIS satellite observations of aerosol optical depth (AOD) for a major biomass burning event around Moscow during summer 2010. Evaluation of MODIS AOD with the Moscow AERONET site supports a MODIS-AOD error…
Person:
Year: 2011
Type: Document
Source: TTRS
Topic(s): Emissions and Smoke, Intelligence, Models, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: wildfires, aerosols, air quality, particulates, remote sensing, statistical analysis, Russia, Europe, fire management, MODIS, PM2.5, Moscow wildfires, aerosol optical depth