Sentences with phrase «fire severity»
Fire severity refers to how intense or severe a fire is in terms of the impact it has on the environment, such as the damage it causes to vegetation, soil, and wildlife. It describes the overall intensity and destructive power of the fire. Full definition
When you move beyond fire probability to whether or not these dead trees increase fire severity, things get a bit more complicated.
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The researchers conclude: «The data available to date do not support a general increase in area burned or in fire severity for many regions of the world.
Quantitative evidence for increasing forest fire severity in the Sierra Nevada and southern Cascade mountains, California and Nevada, USA.
The researchers concluded: «The data available to date do not support a general increase in area burned or in fire severity for many regions of the world.
For example, treatments completed before the largest wildfire in Arizona history, the Wallow Fire in 2011, effectively protected communities and towns by reducing fire severity before it reached key residential areas [61].
According to the study, strategies for increasing pines in California forests include reducing forest densities and fire severities while increasing overall fire occurrence (both prescribed fires and managed wildfires).
In the case of the western spruce budworm, a cream - colored insect that especially enjoys munching on conifers, the analysis showed in the first few years after an outbreak fire severity is low, but over the course of decades it increases.
The researchers examined factors like topography, weather conditions and fire history and used statistical models to determine what influenced fire severity.
The underlying pattern in this year's fire forecast is driven by the fact that the western Amazon is more heavily influence by sea surface temperatures in the tropical Atlantic, and the eastern Amazon's fire severity risk correlates to sea surface temperature changes in the tropical Pacific Ocean.
Climatic stress increases forest fire severity across the western United States.
Increased fire severity resulting primarily from warmer weather and past fire suppression; increased release of forest carbon from fire
The findings track with the growing body of research on the impact of insects on forest fire severity, said Carolyn Sieg, a research plant ecologist with the U.S. Forest Service.
The study is the first to quantify the influence of spruce beetle and fire severity on spruce - fir forests through direct field measurements as opposed to using satellite or aerial imagery.
The best predictor of fire severity was how severe the area last burned, according to the findings published in the journal Ecosphere.
Restoration treatment including thinning and prescribed burning may help reduce fire severity and increase tree survival after wildfire, as well as provide a seed source for future trees, Dodson said.
Just because the findings may not implicate beetle - killed trees in increased fire severity or probability in some places, there may still be other ways in which they affect fire behavior.
The researchers surveyed a range of elevations, forest types and fire severities - including in the Sierra Nevada, Klamath Mountains, and North Coast regions - to determine which factors promote and limit natural conifer regeneration and how different conifer species respond after a fire.
The outlook is based on a fire severity model that produced a successful first forecast in 2012.
«Fire severity in southwestern Colorado unaffected by spruce beetle outbreak.»
For example, last year, a team of Colorado researchers found no correlation between beetles and fire severity in the case of high - elevation spruce and fir forests in southwestern Colorado (ClimateWire, Nov. 2, 2015).
For mountain pine beetles, the study found fire severity was high immediately after an outbreak, but over time as the number of trees killed by the beetle outbreak grew, fire severity leveled out.
Published in the journal Environmental Research Letters today, the study looked at both mountain pine beetle and western spruce budworm outbreaks and unpacked the interaction between insect activity and fire severity.
A growing body of research has found little connection between insect outbreaks and fire severity, despite the popular belief there is.
«Fire severity has been increasing for about the past three decades,» Taylor said.
The fire severity forecast model, developed by Yang Chen and Jim Randerson at the University of California, Irvine, along with NASA scientists, was first published in 2011 in the journal Science.
And fire severity is already increasing in many forests due to climate change — what is now thought of as a drought in some locations may be considered average by the end of the next century.
And what is the relationship between climate, area burned and fire severity?
This is essentially what Abatzoglou and colleagues» results seem to point to: differences in fire severity can't be gleaned just by looking at area burned.
Fire severity (measured as total carbon stored in aboveground tissues killed by fire) estimated for 2003 - 2012, a relatively dry decade.
Fire risk may increase in all forests; fire severity may increase the most in lower elevation forests.
Worldwide, vegetation fires are showing a trend toward longer burning periods, increased fire severity, larger areas burned and increased (mostly human caused) frequency — with all of these factors contributing to more damaging environmental impacts, higher shares of emissions and increasing socioeconomic costs, including greater threats to human health and security.
Earlier last spring, Rogers and a team of five scientists chose the forest zone around Fort McMurray for a smoke - measuring experiment, because the area rates high for fire severity.
Kiran Ooman, a youth plaintiff with Our Children's Trust said, «Growing up in the Pacific Northwest of the United States I have witnessed the effects of climate change, from the steady increase in forest fire severity to unnaturally high pollen counts.
said, «Growing up in the Pacific Northwest of the United States I have witnessed the effects of climate change, from the steady increase in forest fire severity to unnaturally high pollen counts.
Some studies using computer modeling have shown that fire severity could increase, especially shortly following tree mortality when red needles are still on the trees.
«There has been a disconnect between the researchers in California, who are sometimes quoted as saying [that] because of bark beetle mortality we are very likely to see an increase in fire severity, versus a large body of research on the Rocky Mountain region which does not support that assertion,» said Veblen.
«There are no studies that I know that have shown the opposite, even though my intuitive expectation and that of many other researchers at the outset was that we should find either an increase in likelihood of fire, meaning probability of fire occurrence after bark beetle outbreaks, or we should see an increase of fire severity.»
This sensor has been useful for investigating fuel load type and subsequent effects on emission types, fire behavior, and post-fire analysis (e.g., safety, erosion, area burned, fire severity or the amount of environmental change caused the fire, etc.) and is often analyzed in interagency and federal - academic coordination to improve our understanding of fire.