Comparing height growth and biomass production of black spruce trees in logged and burned stands

Ruel, Jean‐Claude; Horváth, Róbert; Ung, Chhun-Huor; Munson, Alison D.

doi:10.1016/j.foreco.2004.02.007

Cited by 16 publications

(21 citation statements)

References 56 publications

(76 reference statements)

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“…The same sampling was used in Ung and Ouellet (1993) and in Bonnet and Pastor (1997). In Ung (1990), Beaumont et al (1999) and Ruel et al (2003), outside bark diameter was measured at 0.15, 1.30, and thereafter, at each meter up to the first live whorl. Also, diameter measurements were taken at each whorl up to the tip of the crown.…”

Section: Datamentioning

confidence: 99%

A simple stem taper model with mixed effects for boreal black spruce

et al. 2009

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We simplified Kozak's taper model by setting the inflection point at 1.3 m (dbh) without losing accuracy and precision. The simplification was required to facilitate the estimation of the covariance parameters when using a mixed-effects method. This method was necessary to take into account the correlation among multiple diameter measurements on an individual stem. The simple stem taper model was fitted to an extended data set collected across the province of Quebec, Canada. Comparison of the predicted stem taper and the derived stem volume with those obtained using existing models showed a comparable predictive power for the simple model. Including a prediction of the tree random effects based on supplementary diameter measurements of the bole improves the predictive ability of the model around the extra diameter observation. This model offers welcome simplicity as a means of predicting tree taper at coarse resolution for planning tree harvesting.

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Section: Datamentioning

confidence: 99%

A simple stem taper model with mixed effects for boreal black spruce

et al. 2009

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“…Elle fait partie des espèces commerciales majeures du Canada (Ruel et al, 2004), notamment à l'Est du pays, où elle a une très grande importance économique (Doucet, 1990). En effet, cette espèce est prisée pour les propriétés mécaniques que procure sa fibre pour le bois de construction et le bois d'oeuvre (Alteyrac et al, 2006 L'éclaircie commerciale entraîne des effets sur la croissance de la tige.…”

Section: Analyse Temporelle De La Croissance Radiale En Longueur Et unclassified

Croissance des branches et des tiges d'épinette noire :

Luszczynski¹

2009

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“…However, concerns have been raised that these silvicultural practices may in some regions increase the rate of paludification because they do not sufficiently disturb the organic soil layers , Lavoie et al 2005. Ultimately, these silvicultural practices may produce growth conditions that are more similar to those associated with low-severity soil burns, leading to the establishment of low-density or patchy stands with widely variable productivity, rather than reproducing growth conditions prevailing after high-severity soil burns, which usually result in dense, productive stands (Lussier et al 1992, Ruel et al 2004. Consequently, the potential productivity of much of this landscape may be underestimated.…”

Section: Introductionmentioning

confidence: 99%

Contrasting effects of season and method of harvest on soil properties and the growth of black spruce regeneration in the boreal forested peatlands of eastern Canada

Lafleur¹,

Fenton²,

Paré³

et al. 2010

Silva Fenn.

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It has been suggested that without sufficient soil disturbance, harvest in boreal forested peatlands may accelerate paludification and reduce forest productivity. The objectives of this study were to compare the effects of harvest methods (clearcutting vs. careful logging) and season (summer vs. winter harvest) on black spruce regeneration and growth in boreal forested peatlands of eastern Canada, and to identify the soil variables that favour tree growth following harvest. Moreover, we sought to determine how stand growth following harvest compared with that observed following fire. The average tree height of summer clearcuts was greater than that of summer carefully logged stands and that of all winter harvested sites. Summer clearcutting also resulted in a higher density of trees > 3 m and > 4 m tall and in a 50% reduction in Rhododendron groenlandicum cover, a species associated with reduced black spruce growth. Height growth of sample trees was related to foliar N and P concentrations, and to soil total N, pH and available Ca and Mg but not to harvest method or season. Our results also indicate that summer clearcutting could produce stand productivity levels comparable to those observed after high-severity soil burns. These results suggest that summer clearcutting could be used to restore forest productivity following harvest in forested peatlands, and offer further support to the idea that sufficient levels of soil disturbance may be required to restore productivity in ecosystems undergoing paludification.

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Comparing height growth and biomass production of black spruce trees in logged and burned stands

Cited by 16 publications

References 56 publications

A simple stem taper model with mixed effects for boreal black spruce

A simple stem taper model with mixed effects for boreal black spruce

Croissance des branches et des tiges d'épinette noire :

Contrasting effects of season and method of harvest on soil properties and the growth of black spruce regeneration in the boreal forested peatlands of eastern Canada

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