气候变化领域集成服务门户(CCPortal): Modelling the influence of different harvesting methods on forest dynamics in the boreal mixedwoods of western Quebec, Canada

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DOI	10.1016/j.foreco.2020.118545
	Modelling the influence of different harvesting methods on forest dynamics in the boreal mixedwoods of western Quebec, Canada
	Maleki K.; Lafleur B.; Leduc A.; Bergeron Y.
发表日期	2021
ISSN	0378-1127
卷号	479
英文摘要	Forest management aims to better understand effects of natural disturbance regimes on forest dynamics and use this knowledge to formulate guidelines in forest planning, thereby narrowing gaps between managed and unmanaged forest landscapes. Using forest simulators to reconstruct forest dynamics in relation to ecosystem processes, including disturbances, could help forest managers to better understand harvesting effects on forest dynamics. Using SORTIE-ND, a spatially explicit forest simulator, we generated stand dynamics for 100 years following simulated clear-cut and partial harvests (dispersed vs aggregated, with 30% and 60% basal area removal). Based on the hardwood: conifer basal area ratio, we grouped post-fire stands into three stand types corresponding to natural post-fire succession (deciduous, mixed deciduous, and mixed coniferous) and assessed long-term effects of clear-cutting and partial harvesting on each. Our results suggest that spatial configurations of harvested and residual trees had a greater effect on stand dynamics than did tree removal intensity. Following dispersed partial harvesting, both deciduous and mixed deciduous stands had species composition and structure similar to unharvested stands of the next successional stage. In these same stand types, aggregated harvests and clear-cutting favoured increased regeneration and basal area increments of aspen, which set succession back to aspen dominance, as has been observed after wildfire. Dispersed partial harvests (both 30% and 60%) and 30% aggregated cuts, in mixed coniferous stands, maintained recruitment and dominance of conifers to levels comparable with unmanaged stands. Clear-cutting in all stand types greatly modified stand compositional and structural attributes, and, when conducted in stands where aspen was abundant, performed as a stand-replacing disturbance, setting succession back to early developmental stages, i.e., to aspen dominance. We conclude that partial harvesting, which emulates gap dynamics similar to undisturbed stands, can maintain natural stand dynamics. © 2020 Elsevier B.V.
英文关键词	Boreal mixedwoods; Gap dynamics; Harvest intensity; Partial harvesting; SORTIE-ND; Spatial configuration
语种	英语
scopus关键词	Dynamics; Harvesting; Aggregated harvests; Basal area increment; Developmental stage; Natural disturbance regime; Partial harvesting; Spatial configuration; Species composition and structures; Successional stages; Reforestation; basal area; boreal forest; environmental disturbance; forest management; forestry modeling; gap dynamics; mixed forest; reconstruction; regeneration; timber harvesting; Back; Basal Area; Cutting; Dynamics; Fires; Harvesting; Populus; Reforestation; Canada; Quebec [Canada]; Coniferophyta
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/154936
作者单位	Institut de recherché sur les forêts (IRF), Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, QC J9X 5E4, Canada; Départment de biologie, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada
推荐引用方式 GB/T 7714	Maleki K.,Lafleur B.,Leduc A.,et al. Modelling the influence of different harvesting methods on forest dynamics in the boreal mixedwoods of western Quebec, Canada[J],2021,479.
APA	Maleki K.,Lafleur B.,Leduc A.,&Bergeron Y..(2021).Modelling the influence of different harvesting methods on forest dynamics in the boreal mixedwoods of western Quebec, Canada.Forest Ecology and Management,479.
MLA	Maleki K.,et al."Modelling the influence of different harvesting methods on forest dynamics in the boreal mixedwoods of western Quebec, Canada".Forest Ecology and Management 479(2021).