气候变化领域集成服务门户(CCPortal): Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts

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DOI	10.1016/j.foreco.2019.01.048
	Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts
	Mattson L.R.; Coop J.D.; Battaglia M.A.; Cheng A.S.; Sibold J.S.; Viner S.
发表日期	2019
ISSN	0378-1127
起始页码	348
结束页码	359
卷号	437
英文摘要	Recent, widespread spruce beetle (Dendroctonus rufipennis) outbreaks have driven extensive tree mortality across western North America. Post-disturbance forest management often includes salvage logging to capture economic value of dead timber, reduce fire hazard, and meet other social or ecological objectives. Little is known about effects of salvage logging on surface fuel loads or plant understory communities in Engelmann spruce (Picea engelmannii)-dominated forests. We sampled fine and coarse woody debris, ground cover, and plant species composition along transects in spruce-beetle impacted stands in southwestern Colorado, USA. Twenty stands had been subject to clearcut 1–2 years prior to sampling; 32 stands were unlogged controls. Salvage logged stands exhibited altered surface fuels, ground cover, plant species cover, and community composition. Salvage increased 1-, 10-, and 100-hr fuels, and cover by bare ground and woody debris; cover by litter and cryptogams was reduced. Understory plant cover was reduced in salvaged stands, primarily due to losses of shrub cover. We found no difference in species diversity or richness between treated stands and controls. Salvage logging also drove shifts in plant community composition. Mean cover by non-native species was low, and not different, between control and salvage stands. Our study characterizes short-term effects that will undoubtedly change substantially over longer periods, in particular due to anticipated tree seedling growth and movement of standing dead wood from the canopy to the surface. In the near term, abundant fine woody surface fuels at salvage sites could influence the likelihood and rate of spread of surface fires, though over time we expect surface fuels in untreated stands to increase to comparable or greater levels than in salvaged stands. Differences in vascular plant cover and composition imparted by salvage harvests is also expected to change over time, though whether treated and untreated communities diverge or converge is not known. As such, we recommend that salvage harvest effects be monitored over extended time frames in order to detect longer-term trends. © 2019 Elsevier B.V.
英文关键词	Engelmann spruce (Picea engelmannii); Forest management; Salvage logging; Spruce beetle (Dendroctonus rufipennis); Surface fuels; Understory vegetation
语种	英语
scopus关键词	Debris; Forestry; Logging (forestry); Timber; Vegetation; Dendroctonus rufipennis; Engelmann spruce (Picea engelmannii); Salvage logging; Surface fuels; Understory vegetation; Fuels; beetle; biofuel; clearcutting; coniferous forest; dead wood; forest management; logging (timber); mortality; plant community; population outbreak; salvaging; seedling; timber; timber harvesting; understory; Forestry; Fuels; Ground Cover; Logging; Picea Engelmannii; Plants; Salvage; Surfaces; Colorado; United States; Dendroctonus rufipennis; Picea engelmannii; Tracheophyta
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/156132
作者单位	School of Environment and Sustainability, Western Colorado University, Gunnison, CO 81231, United States; Rocky Mountain Research Station, US Forest Service, Fort CollinsCO 80526, United States; Colorado Forest Restoration Institute and Department of Forest and Rangeland Stewardship, Colorado State University, Fort CollinsCO 80523, United States; Department of Anthropology, Colorado State University, Fort CollinsCO 80523, United States
推荐引用方式 GB/T 7714	Mattson L.R.,Coop J.D.,Battaglia M.A.,et al. Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts[J],2019,437.
APA	Mattson L.R.,Coop J.D.,Battaglia M.A.,Cheng A.S.,Sibold J.S.,&Viner S..(2019).Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts.Forest Ecology and Management,437.
MLA	Mattson L.R.,et al."Post-spruce beetle timber salvage drives short-term surface fuel increases and understory vegetation shifts".Forest Ecology and Management 437(2019).