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词条 Wildfires in the United States
释义

  1. History of wildfire policy in the U.S.

  2. Wildland-urban interface policy

  3. Economics of fire management policy

  4. Regional burden of wildfires in the United States

  5. Western U.S. wildfire trends

  6. Notable wildfires in the United States

  7. See also

  8. References

{{more footnotes|date=September 2017}}

Wildfires are a common problem for Americans especially for those who live in California and southern areas near. Policies have been implemented starting in 1908 with the Forest Fire Emergency Fund Act. Since then numerous policies have been in place such as the "10AM Policy". FEMA and NFPA created policies to help with damages to buildings and houses. The U.S. Army and U.S. Forest Service also take part in preserving timber. Wildfires were seen to be a major problem. Smokey the Bear was introduced to the public to spread awareness to adolescence. Wildfires have been a problem for years and the most notable fires recently were the 2016 California Wildfires.

History of wildfire policy in the U.S.

{{See also|History of wildfire suppression in the United States}}

Since the turn of the 20th century, various federal and state agencies have been involved in wildland fire management in one form or another. In the early 20th century, for example, the federal government, through the U.S. Army and the U.S. Forest Service, solicited fire suppression as a primary goal of managing the nation's forests. At this time in history fire was viewed as a threat to timber, an economically important natural resource. As such, the decision was made to devote public funds to fire suppression and fire prevention efforts. For example, the Forest Fire Emergency Fund Act of 1908 permitted deficit spending in the case of emergency fire situations.[1] As a result, the U.S. Forest Service was able to acquire a deficit of over $1 million in 1910 due to emergency fire suppression efforts.[1] Following the same tone of timber resource protection, the U.S. Forest Service adopted the "10 AM Policy" in 1935.[1] Through this policy, the agency advocated the control of all fires by 10 o'clock of the morning following the discovery of a wildfire. Fire prevention was also heavily advocated through public education campaigns such as Smokey Bear. Through these and similar public education campaigns the general public was, in a sense, trained to perceive all wildfire as a threat to civilized society and natural resources. The negative sentiment towards wildland fire prevailed and helped to shape wildland fire management objectives throughout most of the 20th century.

Beginning in the 1970s public perception of wildland fire management began to shift.[1] Despite strong funding for fire suppression in the first half of the 20th century, massive wildfires continued to be prevalent across the landscape of North America. Ecologists were beginning to recognize the presence and ecological importance of natural, lightning-ignited wildfires across the United States. It was learned that suppression of fire in certain ecosystems may in fact increase the likelihood that a wildfire will occur and may increase the intensity of those wildfires. With the emergence of fire ecology as a science also came an effort to apply fire to ecosystems in a controlled manner; however, suppression is still the main tactic when a fire is set by a human or if it threatens life or property.[2] By the 1980s, in light of this new understanding, funding efforts began to support prescribed burning in order to prevent wildfire events.[1] In 2001, the United States implemented a National Fire Plan, increasing the budget for the reduction of hazardous fuels from $108 million in 2000 to $401 million.[2]

In addition to using prescribed fire to reduce the chance of catastrophic wildfires, mechanical methods have recently been adopted as well. Mechanical methods include the use of chippers and other machinery to remove hazardous fuels and thereby reduce the risk of wildfire events. Today the United States' maintains that, "fire, as a critical natural process, will be integrated into land and resource management plans and activities on a landscape scale, and across agency boundaries. Response to wildfire is based on ecological, social and legal consequences of fire. The circumstance under which a fire occurs, and the likely consequences and public safety and welfare, natural and cultural resources, and values to be protected dictate the appropriate management response to fire" (United States Department of Agriculture Guidance for Implementation of Federal Wildland Fire Management Policy, 13 February 2009). The five federal regulatory agencies managing forest fire response and planning for 676 million acres in the United States are the Department of the Interior, the Bureau of Land Management, the Bureau of Indian Affairs, the National Park Service, the United States Department of Agriculture-Forest Service and the United States Fish and Wildlife Services. Several hundred million U.S. acres of wildfire management are also conducted by state, county, and local fire management organizations.[3] In 2014, legislators proposed The Wildfire Disaster Funding Act to provide $2.7 billion fund appropriated by congress for the USDA and Department of Interior to use in fire suppression. The bill is a reaction to United States Forest Service and Department of Interior costs of Western Wildfire suppression appending that amounted to $3.5 billion in 2013.[4]

Wildland-urban interface policy

{{see also|Wildland–urban interface|fire-adapted communities}}

An aspect of wildfire policy that is gaining attention is the wildland-urban interface (WUI). More and more people are living in "red zones," or areas that are at high risk of wildfires. FEMA and the NFPA develop specific policies to guide homeowners and builders in how to build and maintain structures at the WUI and how protect against property losses. For example, NFPA-1141 is a standard for fire protection infrastructure for land development in wildland, rural and suburban areas[5] and NFPA-1144 is a standard for reducing structure ignition hazards from wildland fire.[6] For a full list of these policies and guidelines, see http://www.nfpa.org/categoryList.asp?categoryID=124&URL=Codes%20&%20Standards. Compensation for losses in the WUI are typically negotiated on an incident-by-incident basis. This is generating discussion about the burden of responsibility for funding and fighting a fire in the WUI, in that, if a resident chooses to live in a known red zone, should he or she retain a higher level of responsibility for funding home protection against wildfires. One initiative aimed at helping U.S. WUI communities live more safely with fire is called fire-adapted communities.

Economics of fire management policy

Similar to that of military operations, fire management is often very expensive in the U.S. and the rest of the world. Today, it is not uncommon for suppression operations for a single wildfire to exceed costs of $1 million in just a few days. The United States Department of Agriculture allotted $2.2 billion for wildfire management in 2012.[7] Although fire suppression purports to benefit society, other options for fire management exist. While these options cannot completely replace fire suppression as a fire management tool, other options can play an important role in overall fire management and can therefore affect the costs of fire suppression.

Fire suppression and climate change has resulted in larger, more intense wildfire events which are seen today.[8] In economic terms, expenditures used for wildfire suppression in the early 20th century have contributed to increased suppression costs which are being realized today.[8]

Regional burden of wildfires in the United States

Nationally, the burden of wildfires is disproportionally heavily distributed in the southern and western regions. The Geographic Area Coordinating Group (GACG)[9] divides the United States and Alaska into 11 geographic areas for the purpose of emergency incident management. One particular area of focus is wildland fires. A national assessment of wildfire risk in the United States based on GACG identified regions (with the slight modification of combining Southern and Northern California, and the West and East Basin); indicate that California (50.22% risk) and the Southern Area (15.53% risk) are the geographic areas with the highest wildfire risk.[10] The western areas of the nation are experiencing an expansion of human development into and beyond what is called the wildland-urban interface (WUI). When wildfires inevitably occur in these fire-prone areas, often communities are threatened due to their proximity to fire-prone forest.[11] The south is one of the fastest growing regions with 88 million acres classified as WUI. The south consistently has the highest number of wildfires per year. More than 50,000 communities are estimated to be at high to very high risk of wildfire damage. These statistics are greatly attributable to the South's year-round fire season.[12]

Western U.S. wildfire trends

Over the last several decades, the Western United States has become a region of widespread, high-intensity wildfires.[13] Since the 1970s, the Western U.S. has experienced three times the amount of "large fires" (fires that burn 1,000 acres or more) that are now burning on average more than 1.7 million acres of land per year— six times the average of 1970.[14] The region has also experienced wildfire seasons that are 78 days longer than they were in 1970.[15] It has been found that throughout the whole United States, 84% of these wildfires are started by humans.[16]

Notable wildfires in the United States

(Chronological)

  • Peshtigo Fire, 1871; most loss of life in a US wildfire.
  • Great Fire of 1910 in the US; shaped 20th-century wildfire policy
  • 1988 Yellowstone wildfires
  • 2011 Texas wildfires
  • 2012 Oklahoma wildfires
  • 2013 Beaver Creek Fire in Idaho.
  • 2016 Nevada wildfire[17]
  • October 2017 Northern California wildfires
  • 2018 Camp Fire
  • 2018 Woolsey Fire

See also

  • List of California wildfires
  • List of Washington wildfires
  • Smokey Bear

References

1. ^Pyne, S.J. 1984. Introduction to wildland fire: Fire management in the United States. New York, NY: John Wiley & Sons, Inc.
2. ^{{cite journal | last1 = Stephens | first1 = Scott L. | last2 = Ruth | first2 = | year = 2005 | title = Federal Forest Fire Policy in US. | url = http://ir.library.oregonstate.edu/xmlui/bitstream/1957/17511/1/Federal%20forest-fire%20policy%20in%20the%20US.pdf| journal = Ecological Applications | volume = 15 | issue = 2| pages = 532–542 | doi=10.1890/04-0545}}
3. ^{{cite web|url=http://www.nifc.gov/policies/policies_main.html |title=National Interagency Fire Center |publisher=Nifc.gov |accessdate=19 January 2014}}
4. ^{{cite web|last1=Graff|first1=Trevor|title=Congressional wildfire bill would adjust state wildland fire funding|url=http://trib.com/news/state-and-regional/congressional-wildfire-bill-would-adjust-state-wildland-fire-funding/article_ebb84713-2437-5652-8dfd-21dd23e4dcc1.html|accessdate=19 September 2014}}
5. ^{{cite web|url=http://www.nfpa.org/aboutthecodes/AboutTheCodes.asp?DocNum=1141&cookie%5Ftest=1 |title=NFPA 1141: Standard for Fire Protection Infrastructure for Land Development in Wildland, Rural, and Suburban Areas |publisher=Nfpa.org |date=31 May 2011 |accessdate=19 January 2014}}
6. ^{{cite web|url=http://www.nfpa.org/aboutthecodes/AboutTheCodes.asp?DocNum=1144 |title=NFPA 1144: Standard for Reducing Structure Ignition Hazards from Wildland Fire |publisher=Nfpa.org |accessdate=19 January 2014}}
7. ^United States Department of Agriculture . FY 2012 Budget Summary
8. ^{{cite web|author=Western Forestry Leadership Coalition|year=2010|title=The true cost of wildfire in the western U.S.|url=http://www.wflccenter.org/news_pdf/324_pdf.pdf|accessdate= 17 April 2011}}
9. ^{{cite web|url=http://gacc.nifc.gov/ |title=National Geographic Area Coordination Center Website Portal |publisher=Gacc.nifc.gov |accessdate=19 January 2014}}
10. ^{{cite journal | last1 = Ager | first1 = A.A. | last2 = Calkin | first2 = P.E. | last3 = Finney | first3 = M.A. | last4 = Gilbertson-Day | first4 = J.W. | last5 = Thompson | first5 = M.P. | year = 2011 | title = Integrated national-scale assessment of wildfire risk to human and ecological values | url = | journal = Stochastic Environmental Research and Risk Assessment | volume = 25| issue = | pages = 1–20 | doi = 10.1007/s00477-011-0461-0 }}
11. ^USDA Forest Service. 2011. Wildland fire and fuels fesearch and development strategic plan: Meeting the needs of the present, anticipating the needs of the Future. FS0854
12. ^{{cite journal|author=Hoyle, Z.|year=2009|title=The southern wildlife risk assessment: A powerful new tool for fighting fire in the south|journal=Compass|volume=18|pages=12–14|accessdate=15 July 2012|url=http://www.srs.fs.usda.gov/compass/issue14/05swra.html}}
13. ^{{Cite news|url=https://ksby.com/news/local-news/2019/03/11/cal-poly-researchers-ready-to-tackle-californias-catastrophic-fires-with-new-institute|title=Cal Poly researchers ready to tackle California’s catastrophic fires with new institute|last=Healy|first=Megan|date=March 12, 2019|work=KSBY|language=en-US|access-date=12 March 2019}}
14. ^{{cite web |url= https://assets.climatecentral.org/pdfs/westernwildfires2016v2.pdf|title= Western Wildfires A Fiery Future|last= Kenward|first=Alyson| last2=Sanford|first2= Todd|last3=Bronzan|first3=James |date= June 2016|website=Assess.climatecentral.org |access-date= 12 February 2019}}
15. ^{{cite journal|last=Westerling|first=A.L.|last2=Hidalgo|first2=H.G.|last3=Cayan|first3=D.R.|last4=Swetnam|first4=T.W.|year=2006|title=Warming and Earlier Spring Increase Western U.S. Forest Wildfire Activity|journal=Science|volume=313|issue=5789|pages=940-943|accessdate=20 February 2019|url=http://science.sciencemag.org/content/313/5789/940}}
16. ^{{cite journal|author= Balch, J.K.|year=2017|title=Human-started wildfires expand the fire niche across the United States|journal=Proceedings of the National Academy of Sciences|volume=114|issue=11|pages=2946-2951|accessdate=28 February 2019|url=https://www.pnas.org/content/114/11/2946}}
17. ^http://www.foxnews.com/us/2016/08/02/wildfires-burn-in-7-western-states-prompt-evacuations0.html
{{Commons category|Wildfires in the United States}}{{Firefighting}}

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