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https://www.readbyqxmd.com/read/27908624/a-review-of-biomass-burning-emissions-and-impacts-on-air-quality-health-and-climate-in-china
#1
REVIEW
Jianmin Chen, Chunlin Li, Zoran Ristovski, Andelija Milic, Yuantong Gu, Mohammad S Islam, Shuxiao Wang, Jiming Hao, Hefeng Zhang, Congrong He, Hai Guo, Hongbo Fu, Branka Miljevic, Lidia Morawska, Phong Thai, Yun Fat Lam, Gavin Pereira, Aijun Ding, Xin Huang, Umesh C Dumka
Biomass burning (BB) is a significant air pollution source, with global, regional and local impacts on air quality, public health and climate. Worldwide an extensive range of studies has been conducted on almost all the aspects of BB, including its specific types, on quantification of emissions and on assessing its various impacts. China is one of the countries where the significance of BB has been recognized, and a lot of research efforts devoted to investigate it, however, so far no systematic reviews were conducted to synthesize the information which has been emerging...
November 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27902716/large-scale-anthropogenic-reduction-of-forest-cover-in-last-glacial-maximum-europe
#2
Jed O Kaplan, Mirjam Pfeiffer, Jan C A Kolen, Basil A S Davis
Reconstructions of the vegetation of Europe during the Last Glacial Maximum (LGM) are an enigma. Pollen-based analyses have suggested that Europe was largely covered by steppe and tundra, and forests persisted only in small refugia. Climate-vegetation model simulations on the other hand have consistently suggested that broad areas of Europe would have been suitable for forest, even in the depths of the last glaciation. Here we reconcile models with data by demonstrating that the highly mobile groups of hunter-gatherers that inhabited Europe at the LGM could have substantially reduced forest cover through the ignition of wildfires...
2016: PloS One
https://www.readbyqxmd.com/read/27899113/collapse-of-an-iconic-conifer-long-term-changes-in-the-demography-of-widdringtonia-cedarbergensis-using-repeat-photography
#3
J D M White, S L Jack, M T Hoffman, J Puttick, D Bonora, V Visser, E C February
BACKGROUND: Conifer populations appear disproportionately threatened by global change. Most examples are, however, drawn from the northern hemisphere and long-term rates of population decline are not well documented as historical data are often lacking. We use a large and long-term (1931-2013) repeat photography dataset together with environmental data and fire records to account for the decline of the critically endangered Widdringtonia cedarbergensis. Eighty-seven historical and repeat photo-pairs were analysed to establish 20th century changes in W...
November 30, 2016: BMC Ecology
https://www.readbyqxmd.com/read/27898193/modeling-long-term-changes-in-tundra-carbon-balance-following-wildfire-climate-change-and-potential-nutrient-addition
#4
Yueyang Jiang, Edward B Rastetter, Gaius R Shaver, Adrian V Rocha, Qianlai Zhuang, Bonnie L Kwiatkowski
To investigate the underlying mechanisms that control long-term recovery of tundra carbon (C) and nutrients after fire, we employed the Multiple Element Limitation (MEL) model to simulate 200-yr post-fire changes in the biogeochemistry of three sites along a burn severity gradient in response to increases in air temperature, CO2 concentration, nitrogen (N) deposition, and phosphorus (P) weathering rates. The simulations were conducted for severely burned, moderately burned, and unburned arctic tundra. Our simulations indicated that recovery of C balance after fire was mainly determined by the internal redistribution of nutrients among ecosystem components (controlled by air temperature), rather than the supply of nutrients from external sources (e...
August 4, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27896583/use-of-ultra-high-spatial-resolution-aerial-imagery-in-the-estimation-of-chaparral-wildfire-fuel-loads
#5
Ian T Schmidt, John F O'Leary, Douglas A Stow, Kellie A Uyeda, Phillip J Riggan
Development of methods that more accurately estimate spatial distributions of fuel loads in shrublands allows for improved understanding of ecological processes such as wildfire behavior and postburn recovery. The goal of this study is to develop and test remote sensing methods to upscale field estimates of shrubland fuel to broader-scale biomass estimates using ultra-high spatial resolution imagery captured by a light-sport aircraft. The study is conducted on chaparral shrublands located in eastern San Diego County, CA, USA...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27894047/predicting-the-occurrence-of-wildfires-with-binary-structured-additive-regression-models
#6
Laura Ríos-Pena, Thomas Kneib, Carmen Cadarso-Suárez, Manuel Marey-Pérez
Wildfires are one of the main environmental problems facing societies today, and in the case of Galicia (north-west Spain), they are the main cause of forest destruction. This paper used binary structured additive regression (STAR) for modelling the occurrence of wildfires in Galicia. Binary STAR models are a recent contribution to the classical logistic regression and binary generalized additive models. Their main advantage lies in their flexibility for modelling non-linear effects, while simultaneously incorporating spatial and temporal variables directly, thereby making it possible to reveal possible relationships among the variables considered...
November 25, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27891237/the-impact-of-fire-suppression-tasks-on-firefighter-hydration-a-critical-review-with-consideration-of-the-utility-of-reported-hydration-measures
#7
REVIEW
Adam Walker, Rodney Pope, Robin Marc Orr
BACKGROUND: Firefighting is a highly stressful occupation with unique physical challenges, apparel and environments that increase the potential for dehydration. Dehydration leaves the firefighter at risk of harm to their health, safety and performance. The purpose of this review was to critically analyse the current literature investigating the impact of fighting 'live' fires on firefighter hydration. METHODS: A systematic search was performed of four electronic databases for relevant published studies investigating the impact of live fire suppression on firefighter hydration...
2016: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27890146/measuring-wildland-fire-fighter-performance-with-wearable-technology
#8
Richard Parker, Antonios Vitalis, Robyn Walker, David Riley, H Grant Pearce
Wildland (rural) fire fighting is a physically demanding and hazardous occupation. An observational study was conducted to explore the use of new technologies for the field study of fire fighters at wildfires and to understand the work pressures of wildland fire fighting. The research was carried out with two fire fighters at real fires wearing microphones, miniature video cameras, heart rate monitors and GPS units to record their actions and location at wildfire events. The fire fighters were exposed to high physiological workloads (heart rates of up to 180 beats per minute) and walked considerable distances at the fires...
March 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/27880840/modelling-carbon-emissions-in-calluna-vulgaris-dominated-ecosystems-when-prescribed-burning-and-wildfires-interact
#9
Victor M Santana, Josu G Alday, HyoHyeMi Lee, Katherine A Allen, Rob H Marrs
A present challenge in fire ecology is to optimize management techniques so that ecological services are maximized and C emissions minimized. Here, we modeled the effects of different prescribed-burning rotation intervals and wildfires on carbon emissions (present and future) in British moorlands. Biomass-accumulation curves from four Calluna-dominated ecosystems along a north-south gradient in Great Britain were calculated and used within a matrix-model based on Markov Chains to calculate above-ground biomass-loads and annual C emissions under different prescribed-burning rotation intervals...
2016: PloS One
https://www.readbyqxmd.com/read/27875007/landscape-variation-in-tree-regeneration-and-snag-fall-drive-fuel-loads-in-24-year-old-post-fire-lodgepole-pine-forests
#10
Kellen N Nelson, Monica G Turner, William H Romme, Daniel B Tinker
Escalating wildfire in subalpine forests with stand-replacing fire regimes is increasing the extent of early-seral forests throughout the western USA. Post-fire succession generates the fuel for future fires, but little is known about fuel loads and their variability in young post-fire stands. We sampled fuel profiles in 24-year-old post-fire lodgepole pine (Pinus contorta var. latifolia) stands (n = 82) that regenerated from the 1988 Yellowstone Fires to answer three questions. (1) How do canopy and surface fuel loads vary within and among young lodgepole pine stands? (2) How do canopy and surface fuels vary with pre- and post-fire lodgepole pine stand structure and environmental conditions? (3) How have surface fuels changed between eight and 24 years post-fire? Fuel complexes varied tremendously across the landscape despite having regenerated from the same fires...
December 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27864755/assaying-germination-and-seedling-responses-of-arabidopsis-to-karrikins
#11
Mark T Waters, Gavin R Flematti, Steven M Smith
Karrikins are a small family of naturally occurring plant growth regulators present in the smoke and char produced from burning plant material in wildfires. They can stimulate germination of dormant seed and can influence seedling morphogenesis. Although Arabidopsis thaliana is not considered to be a smoke-responsive species, karrikins will stimulate seed germination under the appropriate circumstances and will cause repression of hypocotyl elongation in low light. This chapter describes how to conduct assays of the activity of karrikins on Arabidopsis seeds and seedlings...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27863578/wildfire-disasters-and-nursing
#12
REVIEW
Patricia Frohock Hanes
Multiple factors contribute to wildfires in California and other regions: drought, winds, climate change, and spreading urbanization. Little has been done to study the multiple roles of nurses related to wildfire disasters. Major nursing organizations support disaster education for nurses. It is essential for nurses to recognize their roles in each phase of the disaster cycle: mitigation, preparedness, response, and recovery. Skills learned in the US federal all-hazards approach to disasters can then be adapted to more specific disasters, such as wildfires, and issues affecting health care...
December 2016: Nursing Clinics of North America
https://www.readbyqxmd.com/read/27859087/burn-me-twice-shame-on-who-interactions-between-successive-forest-fires-across-a-temperate-mountain-region
#13
Brian J Harvey, Daniel C Donato, Monica G Turner
Increasing rates of natural disturbances under a warming climate raise important questions about how multiple disturbances interact. Escalating wildfire activity in recent decades has resulted in some forests re-burning in short succession, but how the severity of one wildfire affects that of a subsequent wildfire is not fully understood. We used a field-validated, satellite-derived, burn-severity atlas to assess interactions between successive wildfires across the US Northern Rocky Mountains a 300,000-km(2) region dominated by fire-prone forests...
September 2016: Ecology
https://www.readbyqxmd.com/read/27849589/socioecological-transitions-trigger-fire-regime-shifts-and-modulate-fire-climate-interactions-in-the-sierra-nevada-usa-1600-2015-ce
#14
Alan H Taylor, Valerie Trouet, Carl N Skinner, Scott Stephens
Large wildfires in California cause significant socioecological impacts, and half of the federal funds for fire suppression are spent each year in California. Future fire activity is projected to increase with climate change, but predictions are uncertain because humans can modulate or even override climatic effects on fire activity. Here we test the hypothesis that changes in socioecological systems from the Native American to the current period drove shifts in fire activity and modulated fire-climate relationships in the Sierra Nevada...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27848989/population-exposure-to-hazardous-air-quality-due-to-the-2015-fires-in-equatorial-asia
#15
P Crippa, S Castruccio, S Archer-Nicholls, G B Lebron, M Kuwata, A Thota, S Sumin, E Butt, C Wiedinmyer, D V Spracklen
Vegetation and peatland fires cause poor air quality and thousands of premature deaths across densely populated regions in Equatorial Asia. Strong El-Niño and positive Indian Ocean Dipole conditions are associated with an increase in the frequency and intensity of wildfires in Indonesia and Borneo, enhancing population exposure to hazardous concentrations of smoke and air pollutants. Here we investigate the impact on air quality and population exposure of wildfires in Equatorial Asia during Fall 2015, which were the largest over the past two decades...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27848000/effects-of-post-fire-plant-cover-in-the-performance-of-two-cordilleran-cypress-austrocedrus-chilensis-seedling-stocktypes-planted-in-burned-forests-of-northeastern-patagonia-argentina
#16
María F Urretavizcaya, Héctor E Gonda, Guillermo E Defossé
Cordilleran cypress (Austrocedrus chilensis [D.Don] Pic. Serm. et Bizarri) forests occupy 140,000 ha along a sharp environmental gradient of central Andean-Patagonia in Argentina. Every summer, about 3200 ha of these forests are affected by wildfires, taking thereafter long time to recover. To accelerate forest recovery, we determined in xeric and mesic cypress stands burned 5 and 2 year before whether survival and growth of two planted cypress seedling stocktypes are affected by plant cover and contrasting precipitation conditions...
November 15, 2016: Environmental Management
https://www.readbyqxmd.com/read/27836471/role-of-oxygen-containing-functional-groups-in-forest-fire-generated-and-pyrolytic-chars-for-immobilization-of-copper-and-nickel
#17
Maryam Esfandbod, Christopher R Merritt, Mehran Rezaei Rashti, Balwant Singh, Sue E Boyd, Prashant Srivastava, Christopher L Brown, Orpheus M Butler, Rai S Kookana, Chengrong Chen
Char as a carbon-rich material, can be produced under pyrolytic conditions, wildfires or prescribed burn offs for fire management. The objective of this study was to elucidate mechanistic interactions of copper (Cu(2+)) and nickel (Ni(2+)) with different chars produced by pyrolysis (green waste, GW; blue-Mallee, BM) and forest fires (fresh-burnt by prescribed fire, FC; aged char produced by wild fire, AC). The pyrolytic chars were more effective sorbents of Cu(2+) (∼11 times) and Ni(2+) (∼5 times) compared with the forest fire chars...
January 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27834210/correction-for-coates-et-al-wildfire-climate-and-invasive-grass-interactions-negatively-impact-an-indicator-species-by-reshaping-sagebrush-ecosystems
#18
(no author information available yet)
No abstract text is available yet for this article.
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27833814/regional-variation-in-fire-weather-controls-the-reported-occurrence-of-scottish-wildfires
#19
G Matt Davies, Colin J Legg
Fire is widely used as a traditional habitat management tool in Scotland, but wildfires pose a significant and growing threat. The financial costs of fighting wildfires are significant and severe wildfires can have substantial environmental impacts. Due to the intermittent occurrence of severe fire seasons, Scotland, and the UK as a whole, remain somewhat unprepared. Scotland currently lacks any form of Fire Danger Rating system that could inform managers and the Fire and Rescue Services (FRS) of periods when there is a risk of increased of fire activity...
2016: PeerJ
https://www.readbyqxmd.com/read/27821739/spatial-variability-in-tree-regeneration-after-wildfire-delays-and-dampens-future-bark-beetle-outbreaks
#20
Rupert Seidl, Daniel C Donato, Kenneth F Raffa, Monica G Turner
Climate change is altering the frequency and severity of forest disturbances such as wildfires and bark beetle outbreaks, thereby increasing the potential for sequential disturbances to interact. Interactions can amplify or dampen disturbances, yet the direction and magnitude of future disturbance interactions are difficult to anticipate because underlying mechanisms remain poorly understood. We tested how variability in postfire forest development affects future susceptibility to bark beetle outbreaks, focusing on mountain pine beetle (Dendroctonus ponderosae) and Douglas-fir beetle (Dendroctonus pseudotsugae) in forests regenerating from the large high-severity fires that affected Yellowstone National Park in Wyoming in 1988...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
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