气候变化领域集成服务门户(CCPortal): Effects of catastrophic wind disturbance, salvage logging, and prescribed fire on fuel loading and composition in a Pinus palustris woodland

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DOI	10.1016/j.foreco.2020.118515
	Effects of catastrophic wind disturbance, salvage logging, and prescribed fire on fuel loading and composition in a Pinus palustris woodland
	Emery R.K.; Kleinman J.S.; Goode J.D.; Hart J.L.
发表日期	2020
ISSN	0378-1127
卷号	478
英文摘要	Feedbacks between forest vegetation, forest fuels, and fire are critical to the perpetuation of fire-dependent ecosystems. In Pinus palustris (longleaf pine) woodlands, low-intensity fires facilitate a positive feedback in which highly flammable Pinus needles produced by canopy trees sustain frequent fires. These frequent fires inhibit recruitment of more fire-sensitive species and facilitate P. palustris dominance. Although these relationships are recognized in frequent-fire forests, we do not understand how vegetation-fuels-fire feedbacks may be modified by catastrophic disturbances and subsequent salvage logging in these ecosystems. In this study, we sought to address how the composition of fuelbed components differed between mature, catastrophically wind-disturbed, and salvage-logged sites and how prescribed fire would differentially interact with these fuel complexes. Using a permanent plot network, we quantified total fuel loading and fuel loading by flammability group (seven categories based on flammability characteristics) across the three disturbance treatments before and after operational-scale prescribed fire. For total fuel loading, we found significant interactions between disturbance treatment and time relative to prescribed fire. The fuel complex of mature sites was relatively homogenous, dominated by Pinus needles. Fuels on wind-disturbed and salvaged sites had minor contributions from Pinus needles, but that was somewhat offset by increased contributions by early successional species that have flammability characteristics similar to Pinus needles. The prescribed fire reduced fuel loading across all treatments and homogenized the wind-disturbed and salvage-logged fuel complexes. Although salvage logging resulted in a disparate fuel assemblage, prescribed fire appeared to reduce dissimilarity with the naturally disturbed condition. © 2020 Elsevier B.V.
英文关键词	Fire feedbacks; Prescribed fire; Salvage logging; Succession; Wind disturbance
语种	英语
scopus关键词	Complex networks; Ecosystems; Fires; Flammability; Forestry; Fuels; Needles; Vegetation; Catastrophic disturbances; Early-successional; Fire-sensitive species; Flammability characteristics; Forest vegetation; Operational scale; Prescribed fires; Wind disturbance; Loading; coniferous tree; fuel; fuelwood; logging (geophysics); recruitment (population dynamics); salvaging; wind forcing; woodland; Ecosystems; Fires; Flammability; Forestry; Fuels; Needles; Pinus palustris
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/154959
作者单位	Department of Geography, University of Alabama, Tuscaloosa, AL 35487, United States
推荐引用方式 GB/T 7714	Emery R.K.,Kleinman J.S.,Goode J.D.,et al. Effects of catastrophic wind disturbance, salvage logging, and prescribed fire on fuel loading and composition in a Pinus palustris woodland[J],2020,478.
APA	Emery R.K.,Kleinman J.S.,Goode J.D.,&Hart J.L..(2020).Effects of catastrophic wind disturbance, salvage logging, and prescribed fire on fuel loading and composition in a Pinus palustris woodland.Forest Ecology and Management,478.
MLA	Emery R.K.,et al."Effects of catastrophic wind disturbance, salvage logging, and prescribed fire on fuel loading and composition in a Pinus palustris woodland".Forest Ecology and Management 478(2020).