气候变化领域集成服务门户(CCPortal): Early postfire response of a northern range margin coast redwood forest community

CCPortal

DOI	10.1016/j.foreco.2020.117966
	Early postfire response of a northern range margin coast redwood forest community
	Woodward B.D.; Romme W.H.; Evangelista P.H.
发表日期	2020
ISSN	0378-1127
卷号	462
英文摘要	Projected increases in fire occurrence and severity in the western United States have created heightened interest in postfire ecological research in Pacific Northwest forest communities. A 2017 mixed-severity fire event at the northern range margin of Sequoia sempervirens (coast redwood) provided a rare opportunity to analyze early postfire data on the interacting effects of burn severity, stem size, and species biology on survivorship and recovery of coast redwood and three forest community associates (Pseudotsuga menziesii var. menziesii, “Douglas-fir”; Notholithocarpus densiflorus, “tanoak”; and Rhododendron macrophyllum, “coast rhododendron”). We employed recursive partitioning to build decision trees that accurately classified (80–88% prediction accuracy) the postfire response of the four primary woody species present in this community. Species specific postfire responses were variable across stem diameters and burn severities, but the ability of three of the four primary woody species to resprout resulted in a resilient postfire community that quickly initiated recovery. Large coast redwood parent stems most typically survived and resprouted from their bole and base, regardless of fire severity, and even the smallest redwood individuals resprouted from their base. Basal sprouting characteristics of coast redwood including sprout presence, growth, and abundance were found to be positively correlated with increasing burn severity. Douglas-fir showed considerable fire resistance at low to moderate burn severities, but high severity fire killed trees of all sizes. Tanoak and coast rhododendron parent stems typically died and resprouted from the base except where burn severity was very low. We conclude by using our findings to discuss the utility and role of fire in forest management, and consider future research avenues that could help to solidify our understanding of the impact and role of fire in these and similar communities. © 2020 Elsevier B.V.
关键词	Decision trees Fire resistance Regression analysis Wood High severity fires Pacific Northwest Prediction accuracy Pseudotsuga menziesii Recursive Partitioning Sequoia sempervirens Species specifics Western United States Forestry abundance accuracy assessment coniferous forest coniferous tree fire forest dynamics forest management prediction survivorship Fire Resistance Forestry Pacific Northwest Pseudotsuga Menziesii Regression Analysis Wood Pacific Northwest United States Lithocarpus Pseudotsuga Pseudotsuga menziesii Pseudotsuga menziesii var. menziesii Rhododendron Rhododendron macrophyllum Sequoia sempervirens
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132937
推荐引用方式 GB/T 7714	Woodward B.D.,Romme W.H.,Evangelista P.H.. Early postfire response of a northern range margin coast redwood forest community[J]. Forest Ecology and Management,2020,462.
APA	Woodward B.D.,Romme W.H.,&Evangelista P.H..(2020).Early postfire response of a northern range margin coast redwood forest community.,462.
MLA	Woodward B.D.,et al."Early postfire response of a northern range margin coast redwood forest community".462(2020).