Alexis Schab's research while affiliated with Laval University and other places
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Publications (3)
In areas sensitive to forest management, paludification and successive disturbances in boreal forest can affect forest regeneration negatively, sometimes resulting in stand opening. As these negative effects on forest productivity are not fully considered in strategic management planning, a new landscape dynamics model integrating fire, paludificat...
La récurrence des feux ainsi que la productivité relativement faible des forêts situées dans la portion nordique de la forêt boréale conditionnent la capacité d'y produire du bois de manière durable. Notre connaissance des régimes de feu nous montre qu'il est hautement probable que des quantités significatives de bois brûleront au cours des prochai...
Citations
... An a posteriori analysis conducted on our simulations also revealed that biomass harvested according to business-as-usual harvesting levels sharply drops under RCP 4.5 and RCP 8.5 after 2075 to reach values similar to those obtained under half the current harvesting levels (see Appendix F). This is consistent with results from several independent studies conducted in similar landscapes, which demonstrate that neglecting to integrate climate change and, more importantly, its effects on fire regime in the estimation of annual allowable cut is likely to lead to a timber shortfall around 2080 (Raulier et al., 2013;Leduc et al., 2015;Schab et al., 2021;Cyr et al., 2022), a result that was replicated by a prospective simulation experiment conducted recently in this region by the Chief Forester's Office (Bureau du Forestier en Chef, 2020). This suggests that cumulative impacts of fire activity and business-as-usual harvesting, even under moderate anthropogenic climate forcing, are sufficient to compromise the maintenance of sustainable harvesting in our study area. ...
... The species can therefore be extirpated from stands affected by short fire intervals (Keeley et al. 1999;Johnstone and Chapin 2006;Johnstone et al. 2010a;Brown and Johnstone 2012;Pinno et al. 2013). Given this sensitivity to both a short fire return interval and an increase in fire intensity in the context of climate warming, black spruce is vulnerable to regeneration failure following fires, as shown by comparative (e.g., Johnstone and Chapin 2006;Baltzer et al. 2021) and modelling studies (Splawinski et al. 2019a(Splawinski et al. , 2019cCyr et al. 2021). This process has the potential to decrease forest resilience and stand productivity over time. ...