Mathieu Fortin

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Root systems of woody plants generally display a strong relationship between the cross-sectional area or cross-sectional diameter (CSD) of a root and the dry weight of biomass (DWd) or root volume (Vd) that has grown (i.e., is descendent) from a point. Specification of this relationship allows one to quantify root architectural patterns and estimate the(More)
The vertical distribution of foliage biomass is important because it is associated with photosynthesis and is closely related to some wood quality attributes such as branch diameter and sapwood content. In this article we propose a model to predict foliage biomass distribution within the crown for jack pine trees in Eastern Canada. This model has two parts.(More)
Due to the fact that forest ecosystems can potentially mitigate the impact of climate change, the carbon balance of managed forests has caught the attention of a large scientific community. Some authors conclude that extending rotation lengths would actually favour the climate change mitigation effect since more carbon would be stored in the biomass on the(More)
When predicting forest growth at a regional or national level, uncertainty arises from the sampling and the prediction model. Using a transition-matrix model, we made predictions for the whole Catalonian forest over an 11-year interval. It turned out that the sampling was the major source of uncertainty and accounted for at least 60 % of the total(More)
Keywords: Windthrow Storm damage Forest growth Statistical modeling Forest management Scenario simulation Risk avoidance Risk reduction Disturbance modeling a b s t r a c t The purpose of this study was to develop, test and evaluate a software prototype capable of modeling forest growth in consideration of winter storm disturbance and to simulate storm(More)
Forests play a key role in the carbon cycle as they store huge quantities of organic carbon, most of which is stored in soils, with a smaller part being held in vegetation. While the carbon storage capacity of forests is influenced by forestry, the long-term impacts of forest managers' decisions on soil organic carbon (SOC) remain unclear. Using a(More)
1 Challenges regarding wood Wood products differ from other manufactured products by the fact that they originate from raw material developed in forest trees, according to complex biological processes, influenced by environmental conditions and changes. These conditions depend on silviculture, in turn influenced by economic , ecological, and social factors.(More)
Deterministic single-tree models are commonly used in forestry. However, there is evidence that stochastic events may interact with the nonlinear mechanisms that underlie forest growth. As a consequence, stochastic and deterministic simulations could yield different results for the same single-tree model and the same initial conditions. This hypothesis was(More)
The di-(phenethyl)-amine derivatives, RU 24213 and RU 24926 are widely used as selective dopamine D2-receptor agonists. Binding studies now show that they also have affinity for the kappa-opioid receptor. Their affinity is not greatly reduced in the presence of NaCl/GTP, suggesting an antagonist action. This is confirmed for RU 24926, the more active of the(More)
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