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DOI | 10.1016/j.foreco.2018.11.027 |
Season of burn effects on vegetation structure and composition in oak-dominated Appalachian hardwood forests | |
Keyser, Tara L.; Greenberg, Cathryn H.; McNab, W. Henry | |
2019-02-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 433页码:441-452 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Previous research indicates that low-intensity single or multiple prescribed burns in oak-dominated upland hardwood forest do not substantially change stand structure or species composition of the arborescent regeneration layer, leading managers and ecologists to suggest that burns during the growing-season may better achieve restoration goals. We examined season of burn effects on dry-mesic oak-hickory forests in the southern Appalachian Mountains, North Carolina. Treatments included: (1) control (CON); (2) dormant-season burn (DSB), and (3) growing-season burn (GSB). Prior to burning and again after three growing seasons post-burn, we inventoried the forest overstory (stems >= 25 cm dbh), subcanopy (stems >= 5 and < 25 cm dbh), sapling (stems >= 1.2 m and < 5 cm dbh), and seedling (stems < 1.2 m) strata. We found no effect of prescribed fire, regardless of burn season, on stem density or basal area of the overstory and subcanopy strata, leaving the light environment in the forest understory relatively unchanged. In general, treatment effects on the sapling and seedling layers were limited to the mesophytic species group, where seedling density post-burn was greater in GSB than both CON and DSB and sapling density post-burn was lower than pre-burn in DSB and GSB. Mortality of individually-tagged seedlings three growing seasons post-burn did not differ among treatments for the red oak, white oak, red maple, mesophytic, and pyrophilic species groups, and averaged 29.0, 28.5, 31.8, 29.3, and 25%, respectively. This study provides support for the notion that a single fire in a closed-canopy oak-hickory forest has little effect on forest structure or regeneration composition, regardless of the burn season. Prescribed fires should be repeated in subsequent years to assess whether the effects of burn season are amplified under a periodic burning regime. |
英文关键词 | Growing-season burn Dormant-season burn Quercus regeneration Restoration Mesophication |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456902500044 |
WOS关键词 | REPEATED PRESCRIBED FIRES ; UPLAND OAK ; REGENERATION ; REPRODUCTION ; DYNAMICS ; HYPOTHESIS ; GROWTH ; MANAGEMENT ; MOUNTAINS ; MORTALITY |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22977 |
专题 | 气候变化 |
作者单位 | US Forest Serv, USDA, Southern Res Stn, Bent Creek Expt Forest, 1577 Brevard Rd, Asheville, NC 28806 USA |
推荐引用方式 GB/T 7714 | Keyser, Tara L.,Greenberg, Cathryn H.,McNab, W. Henry. Season of burn effects on vegetation structure and composition in oak-dominated Appalachian hardwood forests[J]. FOREST ECOLOGY AND MANAGEMENT,2019,433:441-452. |
APA | Keyser, Tara L.,Greenberg, Cathryn H.,&McNab, W. Henry.(2019).Season of burn effects on vegetation structure and composition in oak-dominated Appalachian hardwood forests.FOREST ECOLOGY AND MANAGEMENT,433,441-452. |
MLA | Keyser, Tara L.,et al."Season of burn effects on vegetation structure and composition in oak-dominated Appalachian hardwood forests".FOREST ECOLOGY AND MANAGEMENT 433(2019):441-452. |
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