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A methodological framework to assess the carbon balance of tropical managed forests

Piponiot-Laroche Camille, Cabon Antoine, Descroix Laurent, Dourdain Aurélie, Mazzei Lucas, Ouliac Benjamin, Rutishauser Ervan, Sist Plinio, Hérault Bruno. 2016. A methodological framework to assess the carbon balance of tropical managed forests. Carbon Balance and Management, 11 (15), 14 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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Abstract : Background: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions. (Résumé d'auteur)

Mots-clés Agrovoc : Forêt, forêt tropicale, séquestration du carbone, émission atmosphérique, Déboisement, Abattage d'arbres, Déchet d'exploitation forestière, Production forestière, Aménagement forestier, services écosystémiques, Modèle mathématique

Mots-clés géographiques Agrovoc : Guyane française, Amazonie, Brésil

Classification Agris : K10 - Forestry production
P01 - Nature conservation and land resources
P40 - Meteorology and climatology
U10 - Computer science, mathematics and statistics

Champ stratégique Cirad : Axe 6 (2014-2018) - Sociétés, natures et territoires

Auteurs et affiliations

  • Piponiot-Laroche Camille, CIRAD-ES-UMR Ecofog (GUF)
  • Cabon Antoine, CTFC (ESP)
  • Descroix Laurent, ONF (GUF)
  • Dourdain Aurélie, CIRAD-ES-UMR Ecofog (GUF) ORCID: 0000-0002-6847-0434
  • Mazzei Lucas, EMBRAPA (BRA)
  • Ouliac Benjamin, Guyane énergie-climat (GUF)
  • Rutishauser Ervan, Carbofor-Expert (CHE)
  • Sist Plinio, CIRAD-ES-UPR BSef (FRA)
  • Hérault Bruno, CIRAD-ES-UMR Ecofog (GUF) ORCID: 0000-0002-6950-7286

Source : Cirad-Agritrop (https://agritrop.cirad.fr/581657/)

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