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William Marchand

William Marchand
IGN

Ph.D. Environmental Sciences

About

18
Publications
4,476
Reads
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159
Citations
Citations since 2016
15 Research Items
158 Citations
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20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
Introduction
I am studying the effects of environmental gradients on tree growth. More specifically I am interested in the effects of climate change on tree growth by using tree-ring data (tree-ring widths, 13C and 18O isotopic ratios).

Publications

Publications (18)
Article
In a world of accelerating changes in environmental conditions driving tree growth, tradeoffs between tree growth rate and longevity could curtail the abundance of large, old trees (LOTs), with potentially dire consequences for biodiversity and carbon storage. However, the influence of tree‐level tradeoffs on forest structure at landscape scales wi...
Article
Full-text available
Recent extreme climate events, such as droughts, have led to unprecedented forest dieback worldwide. Serra-Maluquer et al. (2022) used open access, global scale databases to link woody species' drought tolerance capabilities to their specific set of life-history traits. They found that species that produce denser woody tissues and can tolerate more...
Article
Full-text available
The boreal forest represents the terrestrial biome most heavily affected by climate change. However, no consensus exists regarding impacts of these changes on the growth of tree species therein. Moreover, assessments of young tree responses in metrics transposable to forest management remain scarce. Here, we assessed the impacts of climate change o...
Article
Full-text available
An increase in frequency, intensity and duration of drought events affects forested ecosystems. Trees react to these changes by adjusting stomatal conductance to maximize the trade-off between carbon gains and water losses. A better understanding of the consequences of these drought-induced physiological adjustments for tree growth could help infer...
Article
Full-text available
Climate change is projected to increase fire severity and frequency in the boreal forest, but it could also directly affect post-fire recruitment processes by impacting seed production, germination, and seedling growth and survival. We reviewed current knowledge regarding the effects of high temperatures and water deficits on post-fire recruitment...
Article
Full-text available
The carbon isotope ratio (δ13C) in tree rings is commonly used to derive estimates of the assimilation‐to‐stomatal conductance rate of trees, i.e. intrinsic water use efficiency (iWUE). Recent studies have observed increased iWUE in response to rising atmospheric CO2 concentrations (Ca), in many different species, genera and biomes. However, increa...
Article
Full-text available
Currently, there is no consensus regarding the way that changes in climate will affect boreal forest growth, where warming is occurring faster than in other biomes. Some studies suggest negative effects due to drought‐induced stresses, while others provide evidence of increased growth rates due to a longer growing season. Studies focusing upon the...
Article
Full-text available
In view of the economic, social and ecological importance of Canada's forest ecosystems, there is a growing interest in studying the response of these ecosystems to climate change. Accurate knowledge regarding growth trajectories is needed for both policy makers and forest managers to ensure sustainability of the forest resource. However, results o...
Poster
Full-text available
Source de multiples bienfaits et services, la forêt boréale canadienne a de l’importance sur le plan économique, écologique et social. Les changements climatiques menacent la pérennité de cet écosystème, laissant planer le doute sur les possibilités forestières futures. Les hausses de températures, associées à des extrêmes climatiques plus fréquent...
Presentation
Full-text available
L’épinette noire (Picea mariana (Mill.) BSP) est bien adaptée à l’environnement boréal par le développement continuel de son système racinaire adventif. Le collet de l’arbre se retrouve englobé à l’intérieur de la souche, sous la surface du sol. Cela suppose qu’un simple décompte des cernes annuels de croissance sur une partie aérienne de tige sous...
Poster
Full-text available
Déterminer l’effet potentiel de l’âge des peuplements sur les erreurs commises lors de la détermination de l’âge chez l’épinette noire, pour une faible épaisseur de matière organique
Article
Quelle influence de la connectivité sur la distribution des plantes en paysage périurbain ?

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