DOI: 10.1016/j.foreco.2013.12.003
Scopus记录号: 2-s2.0-84904973386
论文题名: Future climate and fire interactions in the southeastern region of the United States
作者: Mitchell R.J. ; Liu Y. ; O'Brien J.J. ; Elliott K.J. ; Starr G. ; Miniat C.F. ; Hiers J.K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 327 起始页码: 316
结束页码: 326
语种: 英语
英文关键词: Biodiversity
; Carbon sequestration
; Climate change
; Ecological services
; Prescribed fire
; Wildland fire
Scopus关键词: Air quality
; Biodiversity
; Climate change
; Drought
; Ecology
; Forestry
; Weather forecasting
; Climate change
; Carbon sequestration
; Climate change projections
; Ecological services
; General circulation model
; Precipitation variability
; Prescribed fires
; Prescription guidelines
; Wildland fire
; Future climate
; Fires
; Biodiversity
; climate change
; climate prediction
; disturbance
; ecosystem service
; fire behavior
; forest resource
; prescribed burning
; silviculture
; wildfire
; Air Quality
; Biodiversity
; Carbon
; Drought
; Ecology
; Forest Fires
; Seasonal Variation
; Appalachians
; Atlantic Coastal Plain
; Gulf Coastal Plain
; Piedmont [United States]
; United States
; Hexapoda
英文摘要: Fire has a profound, though paradoxical influence on landscapes of the southeastern U.S.; it simultaneously maintains native biodiversity and ecosystem processes but also threatens silvicultural resources and human landscapes. Furthermore, since the majority of the southern landscape is heavily influenced by human activities, contemporary fire regimes are human managed disturbances within extant fire-dependent ecosystems. Though there is considerable uncertainty in climate projections for the southeastern U.S., climate change will likely impact both prescribed fire and wildfire. In this review, we synthesize climate change-fire interactions, discuss the impacts of uncertainty in a human-dominated landscape, and illuminate how both climate change projections and their uncertainties might impact our ability to manage forests in the Southeast. We define the Southeast region as consisting of the Gulf Coastal Plain, Lower Atlantic Coastal Plain, Piedmont and southern Appalachians and associated subregions. This region has the greatest area burned by prescribed fire, the highest number of wildfires in the continental U.S. and contains globally significant hotspots of biodiversity, much of which is dependent on frequent fire. The use of prescribed fire as a management tool depends on a suite of weather and fuel conditions which are affected by climate. Over the next five decades, general circulation models (GCMs) consistently predict air temperature to increase by 1.5-3. °C in the Southeast. Precipitation forecasts are more uncertain with respect to the mean; but, most models predict an increase in precipitation variability. Increases in the likelihood of severe droughts may increase wildfire occurrence while simultaneously limiting the implementation of prescribed burning by restricting the number of days within current prescription guidelines. While the Southeast has among the highest potential for C storage and sequestration, a reduction in C sequestration capacity due to increasing disturbances such as drought, insect infestations, hurricanes and fire, is possible. The potential for long-term shifts in forest composition from climate-altered fire regimes if coupled with an increased potential for wildfire occurrence could reduce quality and quantity of water released from forests at times when demand for high quality water will intensify for human use. Furthermore, any reduction in prescribed burning is likely to result in decreased biological diversity, particularly in the Coastal Plain, a global hotspot of biodiversity. Lastly, more future area burned by wildfire rather than prescribed fire has the potential to negatively influence regional air quality. Mitigating the negative effects of climate change-fire interactions would require actively exploiting favorable seasonal and inter-annual climate windows. Monitoring the type conversions of agricultural and fiber production forest will be critical for long-term projections of fire risk and watershed impacts of altered fire regimes. © 2013. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65901
Appears in Collections: 影响、适应和脆弱性
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作者单位: Joseph W. Jones Ecological Research Center, 3988 Jones Center Dr., Newton, GA 39870, United States; USDA Forest Service, Southern Research Station, Center for Forest Disturbance Science, US Forest Service, 320 Green St., Athens, GA 30602, United States; USDA Forest Service, Southern Research Station, Coweeta Hydrologic Laboratory, 3160 Coweeta Lab Rd., Otto, NC 28763, United States; University of Alabama, Department of Biological Sciences, Box 870344, Tuscaloosa, AL 35487, United States; Air Force Wildland Fire Center, Eglin Air Force Base, 107 Hwy 85, Niceville, FL 32578, United States
Recommended Citation:
Mitchell R.J.,Liu Y.,O'Brien J.J.,et al. Future climate and fire interactions in the southeastern region of the United States[J]. Forest Ecology and Management,2014-01-01,327