Articles tagged with Forest Fires
High-elevation fires in the western US have advanced upslope by 252 meters since 1984, fueled by climate change and increased lightning strikes. This expansion threatens previously wet areas and exacerbates fire risks in dry regions.
Researchers used fire progression mapping and weather interpolation to build statistical models for the Klamath-Siskiyou region, finding that hotter-than-average fire weather and smoke density influence refugia occurrence. Topographic variability and moderate smoke conditions are crucial for preserving these fire-resistant areas.
Researchers found that wildfires have killed trees, eroding soil and allowing native herbaceous cover to expand, while white-sand savanna tree species dominate the landscape. This shift threatens biodiversity and carbon storage in the Amazon ecosystem.
New research reveals that northern forests' ability to absorb atmospheric carbon is being hindered by increasing frequency and intensity of forest fires. The study found that these fires are releasing more carbon into the atmosphere, while also altering the composition of tree species, with conifers being replaced by hardwoods.
A new predictive mapping tool, POCSCRPT, aids forest managers in determining which areas of western US forests will naturally regrow following wildfires. The tool's accuracy is enhanced by incorporating climate and seed production data.
A recent paper by Tadeg Quillien outlines a mathematical model of causal judgment that reproduces people's intuitions better than previous models. The study highlights the role of probability and logical structure in shaping our causal intuition, with implications for problem-solving and decision-making.
Climate change has led to an eight-fold increase in the annual area burned by high severity fires across western US forests from 1985-2017. This trend poses significant risks to forest ecosystems and human safety, as severe fires can lead to long-term forest loss.
A north-south drought dipole influences ponderosa pine recovery post-fires, with juvenile conifers less likely to thrive in dry northern regions. The study's findings suggest taking climate variability into account can improve long-term predictions of forest resilience.
A University of Pittsburgh professor is utilizing optimization techniques to find effective solutions for mitigating forest fires. The project aims to predict when and where fuel treatment methods should be implemented to best control wildfires.
Researchers found that Yosemite's Spotted Owl numbers and nesting rates remained stable after the Rim Fire, which burned one-third of their habitat in 2013. The owls' ability to thrive despite the fire can be attributed to the park's unique history and management strategy.
Climate shift, forest loss and fires have led to the expansion of Amazon fires beyond flammable savannas to moist tropical forests. The fire season was initialized earlier than two decades ago due to extreme climate events making the forest more vulnerable.
Research highlights risk of ecological change as wildfires flare up across West, driving changes in forest vegetation and threatening wildlife habitats and local economies. Scientists explore strategies to adapt forests to emerging climatic conditions, including 'assisted migration' and managing wildfire for resource objectives.
A new self-powered alarm system detects forest fires by harvesting energy from moving tree branches, reducing the need for maintenance and increasing efficiency. The MC-TENG technology converts mechanical energy into electricity, enabling continuous monitoring of fire and environmental conditions.
A new algorithm developed by researchers at the University of Córdoba improves response capacity to forest fires. The tool predicts fire fighting difficulty and offers an extinction difficulty index, helping authorities prioritize management tasks and optimize resources.
A thick buildup of organic matter on the forest floor can complicate efforts to use prescribed fire as a forest management tool. Controlled burns require specific prescriptions to minimize duff smoldering and prevent mortality of large, older pines and potential ecological consequences below ground.
The U.N. and international organizations have set ambitious forest restoration targets, but data shows that many countries in the global South are struggling to meet their commitments. Local communities' involvement is crucial for success, but current efforts often lack this essential element.
A joint research team from NUS and LIPI uncovered five new bird species and five subspecies in three small island groups off Sulawesi, Indonesia. The discovery highlights the incomplete understanding of species diversity in complex areas like Wallacea.
Animal species from low-disturbance environments are more sensitive to modern forest fragmentation, according to a study of global datasets. The researchers found strong support for the extinction filter hypothesis, suggesting that species adapted to high disturbance areas may be more resilient to new disturbances.
A new study predicts that wildfires in Oregon's southern Blue Mountains will become more frequent and severe due to climate change. By the end of the century, high-elevation species may be replaced by more fire-resistant ones, leading to a less resilient landscape.
Existing fire blanket technology can shield isolated buildings from short wildfire attacks, but technological improvements are required for severe fires and high-housing-density areas. Further research is necessary to develop more effective materials and deployment methods.
Scientists recommend policy approaches that expedite collaboration and capacity-building in fire management. Innovative projects across the US demonstrate effective partnerships between land managers, communities, and organizations, such as the Rio Grande Water Fund and California's Fire MOU Partnership.
A new statistical approach revealed that forest fires in 19th and 20th centuries were man-made, driven by changes in forest management and vegetation. This finding highlights the need for adaptive forestry practices to address climate change.
A recent study by University of Kansas researcher Gabriel de Oliveira analyzed satellite data to understand the effects of deforestation on Amazonian ecosystems. The research revealed significant differences in soil and air temperatures, evapotranspiration rates, and energy exchanges between forested and non-forested areas.
A new study by the University of Birmingham found that large-scale tree deaths worldwide are responsible for more than a tenth of total tree deaths. The research used satellite observations and computational models to calculate the impact of these events on carbon storage, revealing that they account for 12% of global tree mortality.
Researchers have discovered that natural disasters like earthquakes and hurricanes follow a power law distribution, where smaller events occur more frequently. However, some events like forest fires deviate from this pattern and follow a lognormal distribution, contradicting previous studies.
Researchers estimated financial losses of €209,619 to €322,733 due to Doñana National Park fire impacting Iberian lynx habitat, and €634 to €3,258 for Segura fire. A tool will be created to assess forest fires' impact on biodiversity, leisure, and tourism.
The NASA-NOAA satellite captured images of four naturally caused fires in Gila National Forest, New Mexico, sparking concern for air quality and fire management. Three fires - Black Fire, South Fire, and Woodrow Fire - generated smoke plumes visible from space.
A new paper argues that wildfire management through prescribed burning and restoration thinning could help save spotted owls in the West, similar to how it helped red-cockaded woodpeckers in the South. The strategy aims to reduce wildfire hazards and create more owl-friendly habitat conditions.
A new visual tool, Visual Seveif programme, assesses economic losses from forest fires by considering tangible and intangible resources. The programme evaluates factors such as carbon fixation, tree age, and species, to estimate the true impact of forest fires on the economy.
A new study found that forest fires are causing snow to melt earlier in the season, exacerbating a cycle of fire and snowmelt. The research revealed that over 11% of Western forests experience earlier snowmelt due to fires.
Researchers reconstructed fire activity using lake-sediment records, finding extensive burning occurred after mature forests developed. They also saw increased fire activity with rising temperatures, particularly in the past 100 years.
Researchers found fire, forest disturbances, and soil erosion decreased in the 14th century, indicating a gradual decline in land-use intensity. The moat was covered with floating vegetation by the end of the 14th century, indicating it was no longer maintained.
Fires increased during phases of lush steppe oak forest growth in relatively humid and warm climates. This contradicts the assumption that dry brushwood was decisive for early fires, suggesting fire risk is linked to plant biomass.
Research from Duke University and National University of Singapore reveals pre-natal exposure to forest fire haze leads to a 1.3-inch decrease in expected height at age 17, resulting in long-term human capital losses and permanent stunting effects on children's growth.
A recent study found that elk avoid areas with extensive tree mortality due to bark-beetle epidemics. This avoidance leads to a decline in preferred habitat for elk, impacting wildlife and land managers managing populations in affected areas.
A study evaluating the impact of the 100-year Northwest Forest Plan found that old-growth forests are declining due to increased fires, while regenerating habitats are increasing in some regions. Despite these findings, the authors recommend continued conservation efforts for old-growth habitats.
Birds associated with older forests in the Pacific Northwest are declining faster than those in early-seral ecosystems, despite conservation efforts. The study highlights the importance of continuing to protect and restore old-growth habitats as wildfires become more frequent.
Researchers found that certain endangered owl species continued to persist and even flourish after large forest fires, with stable occupancy rates observed. The study suggests that fire may enhance conditions for rodent populations, which are a crucial prey source for the owls, offsetting any negative effects on nesting habitat.
Researchers at ICTA-UAB are developing a participative prevention and fire fighting strategy for the Montseny Biosphere Reserve. The project aims to analyze types of fires, establish strategic management points and foster institutional coordination of climate change mitigation and adaptation policies.
A study of 6.5 million hectares of Brazilian Amazonia found that carbon losses from El Niño forest fires were three to four times greater than expected. The analysis showed that uncontrolled wildfires in understorey areas resulted in high immediate CO2 emissions.
The Mendocino Complex has become the largest fire in California history, burning over 290,000 acres and forcing nearly 4,000 firefighters to battle the inferno. The complex consists of two separate fires, River and Ranch Fires, which have destroyed 75 residences and 68 structures.
A recent study published in Ecosphere reveals that mixed-severity wildfires actually produce more benefits than costs to Spotted Owl populations. The research analyzed 21 scientific studies and suggests that management strategies prioritizing fuel-reduction logging are outdated.
A new technique using high-resolution satellite imagery and aerial measurements provides a more accurate picture of forest recovery from wildfires. By distinguishing between canopy and understory growth, scientists can better understand forest dynamics and carbon sequestration.
The study uses Getis-Ord Gi* hotspot analysis to identify forest fire hotspots in Brunei-Muara District, highlighting the need for new fire stations. Site Suitability Analysis is conducted using local road networks to suggest suitable locations for new fire stations.
A new study by Portland State University geographer Andrés Holz tracked ecosystem changes over 10,000 years, finding that climate and frequent forest fires were the primary drivers of change in west-central Patagonia.
Researchers found charcoal accelerates fine roots decomposition, leading to increased CO2 emissions in boreal forests. High charcoal concentrations resulted in greater root mass loss over two years.
Researchers found that areas recently treated with controlled burns fared better in the 2013 Rim Fire. The best predictor of fire severity was how severe the area last burned, indicating that reducing initial burn severity can limit future fires.
A recent study warns of the increasing threat of forest fires in Europe and their impact on air quality. The JRC's annual report confirms longer and more intense fire seasons, with severe health implications for humans, particularly during prolonged fire seasons.
Researchers found that mechanically thinning and prescribed burns can reduce fire-severity by up to 60% when used optimally. The study's findings have implications for forest management teams across the US, highlighting the importance of fire in ecosystem restoration.
British Columbia has been severely impacted by forest fires, with large portions of the landscape decimated by fire. The NASA's Aqua satellite provides a clear visual representation of the extent of the damage through its natural color and false color images.
Research monitored wildlife acoustic activity before, during and after major forest fires in Southeast Asia, revealing a 37.5% decline during the haze. The damage was likely greater near fires, where air pollution levels were 15 times higher.
A study by researchers from the USDA Forest Service and the University of Minnesota found that controlled burns did not lead to increased mercury levels in yellow perch, contradicting previous mixed results. The research also showed no significant disruption to watershed food webs.
A new study predicts a significant decline in carbon storage in the Sierra Nevada mountains under projected climate-wildfire interactions. The research highlights the need for policy makers to take action to maintain these forested ecosystems, which can help regulate water flow and mitigate the effects of global warming.
A UC Berkeley study has found significant flaws in research used to challenge the US Forest Service's plan to restore Sierra Nevada forests. The study, published in Ecological Applications, uses historic field data to estimate forest density and finds two major methodological flaws.
A 68-year study found that frequent burning of forests can lead to diverse ecosystems with small trees and herbaceous plants, while annual burning creates tall canopy trees with wide spaces. The study suggests land managers should plan fire use strategically based on forest goals.
Seasonally inundated areas in the Amazon heart may be weak spot to climate-induced collapse and fires, spreading to surrounding forests. Fire-related savannas dominate flooded parts when rainfall drops below 1500 mm/year.
A study in Norway's boreal forest reconstructs past events over the last 700 years, showing a surge in human-instigated fires during the 17th and 18th centuries followed by fire suppression after AD 1800. The analysis provides valuable insights into historical fire patterns, guiding forest management planning.
Research reveals that forest fire activity in California's Sierra Nevada has been driven by human land use rather than climate change. The study found four distinct periods of altered fire regimes corresponding to different types of human occupation and land use.
A new study reveals that human-induced climate change has doubled the area affected by forest fires in the U.S. West over the last 30 years. The study found that heightened temperatures and resulting aridity have caused fires to spread across an additional 16,000 square miles than they otherwise would have.
A new study by researchers at the University of Idaho and Columbia University finds that human-caused climate change has nearly doubled the amount of land burned in western US forest fires over the past three decades. The study estimates that human-caused climate change caused an additional 16,000 square miles of western forest lands t...