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Black-spruce–lichen woodlands growth and carbon drawdown potentials as revealed by mature stands

Dufour Boris, Boucher Jean-François, Tremblay Pascal, Mailly Daniel et Lord Daniel. (2016). Black-spruce–lichen woodlands growth and carbon drawdown potentials as revealed by mature stands. Boreal Environment Research, 21, p. 71-86.

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URL officielle: http://www.borenv.net/BER/ber211-2.htm

Résumé

The afforestation of widely distributed boreal open woodlands such as lichen woodlands (LWs) could provide both a restoration of the closed-crown forest structure in the boreal forest and a mitigation measure against global warming. By comparing natural, mature stands of LW with their dense counterparts — black-spruce–feathermoss stands as a plantation surrogate — this study aims to validate the long-term LW growth support capacity for a high tree density and their carbon sequestration potential after afforestation. Our results reveal that the site potential of LWs can be either lower or equivalent to that of dense stands. This finding contradicts the paradigm of systematic lower tree growth in LWs. The site potential of LWs can be assessed by dominant tree volume at 50 years. This study also shows that the CBM-CFS3 model can simulate the conservative net carbon balance of afforested LW, and, as such, can help reduce uncertainties regarding the long-term net carbon drawdown of afforested LWs.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:21
Pages:p. 71-86
Version évaluée par les pairs:Oui
Date:2016
Sujets:Sciences naturelles et génie > Sciences appliquées > Foresterie et sciences du bois
Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes
Département, module, service et unité de recherche:Départements et modules > Département des sciences fondamentales
Mots-clés:open woodland, lichen woodland, afforestation, global warming, black spruce, Picea mariana, carbon sequestration
Déposé le:11 avr. 2016 22:36
Dernière modification:05 déc. 2016 20:52
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