نتایج جستجو برای: Wildfire

تعداد نتایج: 3925  

Wildfire in forests and rangelands, apart from its initiating causes, is considered as an ecological disaster. Zoning natural areas according to their susceptibility to fire helps to put off operations and reduces catastrophic losses caused through a wise management plan. In this study, the zoning map of wildfire risk in forest and rangeland areas has been produced using GIS, Analytical Hierarc...

Journal: :caspian journal of environmental sciences 2012
a mahdavi

wildfire in forests and rangelands, apart from its initiating causes, is considered as an ecological disaster. zoning natural areas according to their susceptibility to fire helps to put off operations and reduces catastrophic losses caused through a wise management plan. in this study, the zoning map of wildfire risk in forest and rangeland areas has been produced using gis, analytical hierarc...

Journal: :Environmental toxicology and pharmacology 2017
Carolyn Black Yohannes Tesfaigzi Jed A Bassein Lisa A Miller

Understanding the effect of wildfire smoke exposure on human health represents a unique interdisciplinary challenge to the scientific community. Population health studies indicate that wildfire smoke is a risk to human health and increases the healthcare burden of smoke-impacted areas. However, wildfire smoke composition is complex and dynamic, making characterization and modeling difficult. Fu...

Journal: :Environmental management 2012
Hannah Brenkert-Smith Patricia A Champ Nicholas Flores

Three causes have been identified for the spiraling cost of wildfire suppression in the United States: climate change, fuel accumulation from past wildfire suppression, and development in fire-prone areas. Because little is likely to be performed to halt the effects of climate on wildfire risk, and because fuel-management budgets cannot keep pace with fuel accumulation let alone reverse it, cha...

Journal: :Ecological applications : a publication of the Ecological Society of America 2016
Matthew D Hurteau Shuang Liang Katherine L Martin Malcolm P North George W Koch Bruce A Hungate

Changing climate and a legacy of fire-exclusion have increased the probability of high-severity wildfire, leading to an increased risk of forest carbon loss in ponderosa pine forests in the southwestern USA. Efforts to reduce high-severity fire risk through forest thinning and prescribed burning require both the removal and emission of carbon from these forests, and any potential carbon benefit...

2014
Jianbang Gan Adam Jarrett Cassandra Johnson Gaither

The economic and ecological damages caused by wildfires are alarming. Because such damages are expected to increase with changes in wildfire regimes, this calls for more effective wildfire mitigation and adaptation strategies. Wildfire adaptation options for forestland owners include purchasing wildfire insurance, which provides compensation to those insured if a wildfire damages their properti...

Journal: :Science 2006
A L Westerling H G Hidalgo D R Cayan T W Swetnam

Western United States forest wildfire activity is widely thought to have increased in recent decades, yet neither the extent of recent changes nor the degree to which climate may be driving regional changes in wildfire has been systematically documented. Much of the public and scientific discussion of changes in western United States wildfire has focused instead on the effects of 19th- and 20th...

2017
Matthew Wibbenmeyer

For more than a century, government wildfire managers have aggressively suppressed wildfires within western U.S. forests. In that time, our understanding of the ecological benefits of wildfire has improved. Nevertheless, it has been politically difficult for managers to limit suppression effort, even for relatively non-threatening wildfires. As wildfires within the western U.S. become more freq...

Journal: :Journal of environmental management 2015
Jianbang Gan Adam Jarrett Cassandra Johnson Gaither

Wildfire has brought about ecological, economic, and social consequences that engender human responses in many parts of the world. How to respond to wildfire risk is a common challenge across the globe particularly in areas where lands are controlled by many small private owners because effective wildfire prevention and protection require coordinated efforts of neighboring stakeholders. We expl...

2005
David T. Butry

In this paper we estimate the treatment effects wildfire suppression (fire crew response time) and fuel management (prescribed fire) have on wildfire size and intensity. Since wildfire management (suppression and fuel management) is likely endogenous to wildfire behavior, we develop instrumental variables (IV) and propensity score matching (PSM) methods to provide consistent estimations of the ...

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