Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.08.011 |
Salvage logging during spruce budworm outbreaks increases defoliation of black spruce regeneration | |
Cotton-Gagnon, Anne1,2; Simard, Martin1,2; De Grandpre, Louis3; Kneeshaw, Daniel4,5 | |
2018-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
![]() |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 430页码:421-430 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Although advance regeneration abundance and vigor are critical factors determining future forest composition and productivity, very few studies have focused on how they are affected by spruce budworm (SBW) outbreaks even though they affect millions of hectares of boreal forest on a cyclical basis. Post-SBW salvage logging is often used to reduce economic losses but could interact with the outbreak to affect advance regeneration. This study aims to determine the impact of SBW outbreaks and post-outbreak salvage logging on the defoliation of advance regeneration in mixed coniferous stands of northeastern Canada. Specifically, we assessed the effect of regeneration height and species (balsam fir or black spruce), as well as canopy composition, on the defoliation of advance regeneration. We then evaluated the effect of salvage logging on defoliation sustained by advance regeneration and compared it to the one observed in stands only affected by the SBW. Regeneration height and species, canopy composition and salvage logging all significantly affected defoliation and showed multiple interactions. Taller balsam fir seedlings were three times as defoliated as smaller ones, whereas it was 2.3 times for black spruce. Balsam fir seedlings were 15% more defoliated than black spruce. Seedlings of both species located beneath a balsam fir canopy were also more defoliated ( > 50% defoliation) than seedlings found under black spruce trees (about 26% defoliation). Salvage logging in black spruce-dominated stands resulted in a 25% increase in defoliation of tall (2.5 m) black spruce regeneration when compared to non-harvested sites. We speculate that this could increase the fir component in spruce-dominated stands, leading to forests that are more susceptible to future SBW outbreaks. To protect spruce advance regeneration from increased defoliation, salvage harvesting of spruce-dominated stands may thus be delayed until the outbreak has subsided. Long-term studies are needed to determine whether a compositional change occurs or not, particularly in spruce-dominated stands. As a precautionary measure, changes in salvage logging practices may be implemented immediately to avoid potential problems such as decreased black spruce abundance and increased susceptibility to future SBW outbreaks. |
英文关键词 | Spruce budworm (Choristoneura fumiferana) Advance regeneration Balsam fir (Abies balsamea) Black spruce (Picea mariana) Defoliation Salvage logging Boreal forest |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449137300041 |
WOS关键词 | BALSAM FIR ; BEETLE OUTBREAK ; KENAI PENINSULA ; DYNAMICS ; FORESTS ; STANDS ; WHITE ; RED |
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/22614 |
专题 | 气候变化 |
作者单位 | 1.Univ Laval, Ctr Forest Res, Quebec City, PQ G1V 0A6, Canada; 2.Univ Laval, Dept Geog, Pavillon Abitibi Price,2405 Rue Terrasse, Quebec City, PQ G1V 0A6, Canada; 3.Nat Resources Canada, Canadian Forest Serv, Laurentian Forestry Ctr, 1055 Rue PEPS,POB 10380, Quebec City, PQ G1V 4C7, Canada; 4.Univ Quebec Montreal, Ctr Forest Res, CP 8888,Succ Ctr Ville, Montreal, PQ H3C 3P8, Canada; 5.Univ Quebec Montreal, Dept Biol Sci, CP 8888,Succ Ctr Ville, Montreal, PQ H3C 3P8, Canada |
推荐引用方式 GB/T 7714 | Cotton-Gagnon, Anne,Simard, Martin,De Grandpre, Louis,et al. Salvage logging during spruce budworm outbreaks increases defoliation of black spruce regeneration[J]. FOREST ECOLOGY AND MANAGEMENT,2018,430:421-430. |
APA | Cotton-Gagnon, Anne,Simard, Martin,De Grandpre, Louis,&Kneeshaw, Daniel.(2018).Salvage logging during spruce budworm outbreaks increases defoliation of black spruce regeneration.FOREST ECOLOGY AND MANAGEMENT,430,421-430. |
MLA | Cotton-Gagnon, Anne,et al."Salvage logging during spruce budworm outbreaks increases defoliation of black spruce regeneration".FOREST ECOLOGY AND MANAGEMENT 430(2018):421-430. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论