globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059576
论文题名:
Large wildfire trends in the western United States, 1984-2011
作者: Dennison P.E.; Brewer S.C.; Arnold J.D.; Moritz M.A.
刊名: Geophysical Research Letters
ISSN: 0094-10147
EISSN: 1944-9878
出版年: 2014
卷: 41, 期:8
起始页码: 2928
结束页码: 2933
语种: 英语
英文关键词: climate variability ; remote sensing ; wildfire
Scopus关键词: Drought ; Remote sensing ; Climate variability ; Drought severity ; Fire management ; Fire occurrences ; Invasive species ; Regional trends ; Western United States ; wildfire ; Fires ; climate change ; database ; drought ; ecoregion ; fire behavior ; fire management ; invasive species ; mountain region ; remote sensing ; temporal period ; trend analysis ; wildfire ; United States
英文摘要: We used a database capturing large wildfires (> 405 ha) in the western U.S. to document regional trends in fire occurrence, total fire area, fire size, and day of year of ignition for 1984-2011. Over the western U.S. and in a majority of ecoregions, we found significant, increasing trends in the number of large fires and/or total large fire area per year. Trends were most significant for southern and mountain ecoregions, coinciding with trends toward increased drought severity. For all ecoregions combined, the number of large fires increased at a rate of seven fires per year, while total fire area increased at a rate of 355 km2 per year. Continuing changes in climate, invasive species, and consequences of past fire management, added to the impacts of larger, more frequent fires, will drive further disruptions to fire regimes of the western U.S. and other fire-prone regions of the world. Key Points Number of large fires and large fire area have increased across the western U.S. Fire activity trends were most significant in southern and mountain ecoregions Increased fire in these ecoregions coincided with increased drought severity ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898751809&doi=10.1002%2f2014GL059576&partnerID=40&md5=b3213b9eeaa158ee00a54aa0e2b7c5d5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7411
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作者单位: Department of Geography, University of Utah, Salt Lake City, UT, United States

Recommended Citation:
Dennison P.E.,Brewer S.C.,Arnold J.D.,et al. Large wildfire trends in the western United States, 1984-2011[J]. Geophysical Research Letters,2014-01-01,41(8).
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