DOI: 10.1016/j.foreco.2014.07.021
Scopus记录号: 2-s2.0-84907312994
论文题名: The influence of experimental wind disturbance on forest fuels and fire characteristics
作者: Cannon J.B. ; O'Brien J.J. ; Loudermilk E.L. ; Dickinson M.B. ; Peterson C.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 330 起始页码: 294
结束页码: 303
语种: 英语
英文关键词: Disturbance interactions
; Fire behavior
; Fire combustion characteristics
; Fuel arrangement
; Wind disturbance
Scopus关键词: Combustion
; Forestry
; Fuels
; Combustion characteristics
; Disturbance ecology
; Fire behavior
; Fire radiative energies
; Fuel characteristics
; Spatial heterogeneity
; Species composition
; Wind disturbance
; Fires
; combustion
; coniferous forest
; damage
; environmental disturbance
; forest dynamics
; forest fire
; fuelwood
; prescribed burning
; wind velocity
; woody debris
; Combustion
; Fires
; Forestry
; Fuels
; Georgia
; Piedmont [United States]
; United States
英文摘要: Current theory in disturbance ecology predicts that extreme disturbances in rapid succession can lead to dramatic changes in species composition or ecosystem processes due to interactions among disturbances. However, the extent to which less catastrophic, yet chronic, disturbances such as wind damage and fire interact is not well studied. In this study, we simulated wind-caused gaps in a Pinus taeda forest in the Piedmont of north-central Georgia using static winching of trees to examine how wind damage may alter fuel characteristics and the behavior of subsequent prescribed fire. We found that experimental wind disturbance increased levels of fine and coarse woody fuels (but not leaf litter), increased spatial heterogeneity of fuels, and led to more complete consumption of leaf litter. These patterns led to changes in fire combustion characteristics in experimental gap plots within areas of downed tree crowns where we observed a large increase in fire radiative flux density (kWm-2) and its time integral, fire radiative energy density (MJm-2). These results suggest that wind disturbance may interact with fire not only through addition of fuel, but also through more subtle changes in fuel composition, consumption, and arrangement. More broadly, this study shows that disturbances can influence one another via a variety of mechanisms not all of which are immediately obvious. Understanding disturbance interactions can allow forest managers to make more informed decisions about how wind disturbance influences fuel heterogeneity, and how management processes, such as prescribed fire can interact with other prior wind disturbances to interactively shape plant communities. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65782
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: University of Georgia, Department of Plant Biology, University of Georgia, 2502 Plant Science Building, Athens, GA 30602, United States; USDA Forest Service, Southern Research Station, Center for Forest Disturbance Science, 320 Green St., Athens, GA 30602, United States; USDA Forest Service, Northern Research Station, Forestry Sciences Laboratory, 359 Main Rd., Delaware, OH 43015, United States
Recommended Citation:
Cannon J.B.,O'Brien J.J.,Loudermilk E.L.,et al. The influence of experimental wind disturbance on forest fuels and fire characteristics[J]. Forest Ecology and Management,2014-01-01,330