Height to live crown base (HCB) is an important input variable for several growth and yield models. Since HCB rarely measured in the field, it often predicted using static Instead of predicting HCB, Forest Vegetation Simulator Northeastern Variant (FVS-NE) uses equation that predicts ratio (CR), which has not been well validated. The main goal present study was construct a regional model thirteen selected tree species Acadian Region North America. specific objectives were to: 1) evaluate...

Diameter at breast height (DBH) is a unique attribute used to characterize forest growth and development for management planning understand ecology. Forest managers require an array of DBHs stands, which can be reconstructed using selected probability distribution functions (PDFs). However, there lack practices that fit PDFs sub-dominating species grown in natural mixed forests. This study aimed develop predictive models PDF parameters, so the predicted would represent dynamic structures...

Individual tree recruitment is an important element needed to understand stand dynamics, as it influences both composition and productivity. Forest growth simulators usually include models. The quality of predictions can have long-term impacts on estimations forest growth, ecosystem health the commercial utility managed forests. main objective this study was develop a model for commercial-size trees (i.e., with diameter at breast height > 9 cm) 10 species groups using different...

Forest biomass is an appealing bioenergy feedstock due its renewability, availability and potential to stimulate local economies. It is, however, voluminous, with heterogenous fuel characteristics uncertainties in supply. The feasibility of a facility contingent on secure supply uniform feedstock; terminal the chain can be useful this regard. Biomass treated meet quality specifications stored overcome seasonality disruptions. Nonetheless, such terminals require significant capital...

Wildfire is an important component of the dynamics boreal-forest ecosystems, but it can also contribute to loss forest resources, especially when fires escape initial attack and become large. Annual fire management costs in province Quebec are substantial (annual average C$69 million for 1994–2014). The main objective this study was evaluate financial impact on resources Quebec. Our includes cost–benefit analyses nine presuppression expenditure scenarios using data three commercially managed...

Components of a fire regime have long been estimated using mean-value-based ordinary least-squares regression. But, forest and managers require predictions beyond the mean because impacts small large fires on ecosystems wildland–urban interfaces are different. Therefore, different action plans required to manage potential varying sizes that demand size-based modelling tools. The objective this study was compare two model-fitting techniques, namely quantile mixed-effects (QME) model linear...

Strategic, tactical, and operation-level forest management plans are commonly formulated by planners following even-flow yield principles. Although strategic planning ensures a sustained supply of timber over the long term, it disregards individual mills’ requirements, which leads to discrepancy between demand. We hypothesize that value-based allocation decision, accounts for demands during tactical level planning, reduces such increasing value entire chain. Three types linear programming...

Individual tree diameter at breast height (DBH) distribution is an important information for forest management planning. Forest managers obtain the DBH data either by field measurements or estimations using predictive models. However, probability models are still lacking need improvement. Therefore, we aimed to construct and fit that reflect structure composition change. We evaluated gamma, log-normal, Weibull functions (PDFs) two commercially species, black spruce ( Picea mariana (Mill)...

Northern hardwoods produce a variety of logs suitable for different final products.It is generally understood that sorting based on grade generates maximum value all stakeholders.However, the benefits log may depend also geographical distribution forest stands and manufacturing mills.The objective this study was to evaluate profitability location stands, destination mills, market parameters .A decision-support tool used allocate from timber sales highest-profityielding mills.Factors...

Saplings (tree species whose diameter at breast height ranges from 1.1 to 9.0 cm) are important in forest growth and development. Their abundance density can lead specific successional trajectories ecosystem characteristics. Yet, the consideration of saplings management planning is a relatively new topic still rarely included models. We developed sapling models for 10 groups with objective providing managers additional tools support development more precise prediction systems. used...

Abstract It is generally understood that sorting logs based on grade generates maximum value for all stakeholders. However, the benefits of may depend location a timber sale and distances to manufacturing mills. The objective quantify potential log through scenario-based analysis in different areas with divergent forest mill types. An optimization model was developed allocate from highest profit-yielding Factors considered by included logging transportation cost, tract-to-mill distances,...