气候变化领域集成服务门户(CCPortal): Interactions between wind and fire disturbance in forests: Competing amplifying and buffering effects

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DOI	10.1016/j.foreco.2019.01.015
	Interactions between wind and fire disturbance in forests: Competing amplifying and buffering effects
	Cannon J.B.; Henderson S.K.; Bailey M.H.; Peterson C.J.
发表日期	2019
ISSN	0378-1127
起始页码	117
结束页码	128
卷号	436
英文摘要	Many studies of ecological disturbance highlight the unexpected impact that compounded disturbances have on communities. One of the well-studied mechanisms by which forest wind and fire disturbances interact is that wind damage increases flammable fuels—amplifying the effects of fire—leading to unexpected changes in vegetation composition. However, wind disturbance may also buffer the effects of fire through mechanisms such as disrupting fuel continuity. The extent to which wind and fire disturbances buffer, or reduce, the magnitude of ecological change has been less well studied. In this study, we winched trees in a Pinus taeda L. forest to simulate wind damage in experimental plots and combined this treatment with prescribed fire. This design allowed investigation of how forest regeneration responds to combinations of wind and fire disturbance, with particular emphasis on whether disturbance interactions were amplifying or buffering. We also tested for evidence of two mechanisms of disturbance interaction that are expected to buffer the cumulative ecological impact of wind and fire disturbances, testing (1) whether wind damage increased resprouting response following fire and (2) whether seedlings on tip-up mounds were protected from fire. We identified evidence for a combination of disturbance interactions occurring in both an amplifying direction (e.g., rapid recruitment and establishment of Rhus copallinum) as well as interactions occurring in a buffering direction (e.g., increased resilience in resprouting saplings in winched plots). Such varying responses may lead to a heterogeneous mixture of amplifying and buffering effects following compounded disturbances, such that at the stand scale, the aggregate regeneration response of two disturbances is the net effect of these individual interaction mechanisms. The results of this study highlight that mechanisms of disturbance interactions may vary spatially and temporally and may be best understood by considering factors such as disturbance severity, species life history traits, and timing between disturbances. © 2019 Elsevier B.V.
英文关键词	Amplifying effects; Antagonism; Buffering effects; Disturbance interactions; Prescribed fire; Synergism; Tornado; Wind damage
语种	英语
scopus关键词	Ecology; Reforestation; Tornadoes; Amplifying effect; Antagonism; Buffering effect; Prescribed fires; Synergism; Wind damage; Fires; aggregate; antagonism; buffering; ecological impact; life history trait; prescribed burning; resprouting; tornado; Damage; Ecology; Fires; Impact; Reforestation; Synergism; Trees; Wind; Pinus taeda; Rhus copallinum
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156168
作者单位	Colorado Forest Restoration Institute, Department of Forest and Rangeland Stewardship, Colorado State University, 1472 Campus Delivery, Fort Collins, CO 80523, United States; Department of Plant Biology, University of Georgia, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Cannon J.B.,Henderson S.K.,Bailey M.H.,et al. Interactions between wind and fire disturbance in forests: Competing amplifying and buffering effects[J],2019,436.
APA	Cannon J.B.,Henderson S.K.,Bailey M.H.,&Peterson C.J..(2019).Interactions between wind and fire disturbance in forests: Competing amplifying and buffering effects.Forest Ecology and Management,436.
MLA	Cannon J.B.,et al."Interactions between wind and fire disturbance in forests: Competing amplifying and buffering effects".Forest Ecology and Management 436(2019).