气候变化领域集成服务门户(CCPortal): A history of recurrent, low-severity fire without fire exclusion in southeastern pine savannas, USA

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DOI	10.1016/j.foreco.2020.118406
	A history of recurrent, low-severity fire without fire exclusion in southeastern pine savannas, USA
	Rother M.T.; Huffman J.M.; Guiterman C.H.; Robertson K.M.; Jones N.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	The reintroduction and maintenance of historical surface fire regimes are primary goals of ecological restoration across many open, pine-dominated ecosystems in North America. In the United States, most of these ecosystems experienced long periods of fire exclusion in the 20th century, leaving few locations to serve as reference sites for ecological conditions associated with a continuous history of recurrent, low-severity fire. Here, we present a tree-ring perspective of uninterrupted surface fire activity from three pine savanna sites in the Red Hills Region of northern Florida and southwestern Georgia, USA. Our sites include two old-growth stands of longleaf pine (Pinus palustris): the Wade Tract on Arcadia Plantation and the Larkin Tract on Millpond Plantation. We also sampled the largely second-growth mixed pine savannas of Tall Timbers Research Station. Documentary records for burning at these sites are limited to recent decades and are often incomplete, although regional land-use traditions and scattered historical records indicate frequent fire may have persisted through the 20th century to present day. Fire-scarred cross sections from externally-scarred stumps, dead trees, and live trees provided tree-ring evidence of frequent fires occurring from the beginning of our fire-scar record in the late 19th century onward. Both fire frequency and seasonality were relatively consistent throughout time and among sites. Biennial and annual fire intervals were the most common. Most fire scars occurred in the dormant and early-earlywood portions of the rings, indicating that these fires were human-set fires during the months of January to mid-April, before the main lightning-fire season. Our findings regarding post-settlement fire frequency are consistent with previous estimates of fire frequency during earlier centuries, resulting from lightning and Native American ignitions. We recommend that our sites be used as reference sites for restoration as they are among the relatively few areas in the United States with a continuous history of frequent low-severity fire without 20th century fire exclusion. © 2020 Elsevier B.V.
英文关键词	Dendrochronology; Fire history; Longleaf pine (Pinus palustris); Prescribed fire; Red Hills Region; Reference sites
语种	英语
scopus关键词	Ecosystems; Forestry; Land use; Lightning; Restoration; Ecological conditions; Ecological restoration; Fire frequencies; Historical records; Low-severity fire; Native Americans; Old-growth stands; Research stations; Fires; annual variation; coniferous forest; dendroecology; environmental restoration; forest management; historical ecology; human activity; indigenous population; plantation; savanna; tree ring; wildfire; Ecosystems; Fires; Forestry; Land Use; Lightning; Restoration; Florida [United States]; Georgia; United States; 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/155014
作者单位	Department of Environmental Sciences, University of North Carolina, 601 South College Road, Wilmington, NC 28403, United States; Tall Timbers Research Station & Land Conservancy, Tallahassee, FL 32312, United States; Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States; Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, United States
推荐引用方式 GB/T 7714	Rother M.T.,Huffman J.M.,Guiterman C.H.,et al. A history of recurrent, low-severity fire without fire exclusion in southeastern pine savannas, USA[J],2020,475.
APA	Rother M.T.,Huffman J.M.,Guiterman C.H.,Robertson K.M.,&Jones N..(2020).A history of recurrent, low-severity fire without fire exclusion in southeastern pine savannas, USA.Forest Ecology and Management,475.
MLA	Rother M.T.,et al."A history of recurrent, low-severity fire without fire exclusion in southeastern pine savannas, USA".Forest Ecology and Management 475(2020).