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The imprint of logging on tropical forest carbon stocks: A Bornean casestudy

Rozak Andes Hamuraby, Rutishauser Ervan, Raulund-Rasmussen Karsten, Sist Plinio. 2018. The imprint of logging on tropical forest carbon stocks: A Bornean casestudy. Forest Ecology and Management, 417 : pp. 154-166.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FORESTRY

Abstract : In tropical forests, selective logging generates a significant reduction of above-ground carbon stocks, due to direct removal of a few large merchantable individuals, and the death of smaller injured or smashed trees following harvesting. Several studies have shown a strong correlation between logging intensity and a reduction of biodiversity, wood production, and biomass stocks. However, little is known about the long-term effects of logging on the main forest carbon (C) stocks in above and below-ground tree biomass, deadwood, litter, and soil. In this study we quantified C stocks in 28 0.25-ha plots located in a mixed Dipterocarp forest, Borneo, Indonesia, logged 16 years ago at different intensities ranging from 0 to 57% of initial biomass removed. We investigated the effect of logging intensity, topography, and soil variables on each C stock using linear mixed models. Sixteen years after logging, total C stocks ranged from 218 to 554 Mg C ha−1 with an average of 314 ± 21 Mg C ha−1, of which more than 75% were found in live trees. Logging intensity was found to be the main factor explaining the variability in carbon stored in above- and below- ground biomass of tree DBH >20 cm and deadwood. Simultaneously, the proportion of deadwood increased with logging intensity reaching 13.5% of total C stocks in intensively logged plots (>20% removal of initial biomass). This study confirmed, therefore, the need to limit logging intensity to a threshold of 20% of initial biomass removal in order to limit the long-term accumulation of deadwood after logging, probably due to high post-logging mortality. With more than half of all Bornean forests already logged, accounting for total C post-logging is key to better assess the long-term carbon footprint of commercial logging in the region, and is a necessary step towards the development of C-oriented forest management in the tropics.

Mots-clés Agrovoc : Forêt, forêt tropicale, Abattage d'arbres, séquestration du carbone

Mots-clés géographiques Agrovoc : Kalimantan, Bornéo, Asie du Sud-Est

Mots-clés complémentaires : Exploitation forestière

Classification Agris : K01 - Forestry - General aspects
P33 - Soil chemistry and physics

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

Agence(s) de financement européenne(s) : European Commission

Auteurs et affiliations

  • Rozak Andes Hamuraby, CIRAD-ES-UPR BSef (FRA) - auteur correspondant
  • Rutishauser Ervan, Carbofor-Expert (CHE)
  • Raulund-Rasmussen Karsten, University of Copenhagen (DNK)
  • Sist Plinio, CIRAD-ES-UPR BSef (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/587553/)

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