Shade level and species composition affect carbon sequestration in coffee agroforestry systems of the Kodagu district, South-Western India

Vaast Philippe, Guillemot Joannès, Vignault C., Charbonnier François, Manjunatha M., Devakumar Austin S.. 2011. Shade level and species composition affect carbon sequestration in coffee agroforestry systems of the Kodagu district, South-Western India. In : Proceedings of the 23rd International Conference on Coffee Science; Bali, Indonesia, October 3-8, 2010 = Actes du 23ème Colloque scientifique international sur le café, Bali, Indonésie, 3-8 octobre 2010. ASIC. Paris : ASIC, 1015-1019. ISBN 978-2-900212-22-6 International Conference on Coffee Science. 23, Bali, Indonésie, 3 Octobre 2010/8 Octobre 2010.

Résumé : Carbon (C) sequestration of Arabica and Robusta agroforestry systems (AFS) was assessed with respect to adjacent reference forest patches in the Kodagu district, the most important coffee region of the Western Ghats, one the world hotspots of biodiversity. Results indicate that coffee AFS with native species sequester large amount of C (190-200 t/ha, above and belowground) on par with forest. Robusta AFS shaded with the fast growing exotic species, Grevillea robusta, sequester less (only 2/3) than native AFS or forest. Carbon sequestration decreases from East to West following a contrasted rainfall gradient (from dry to very humid conditions) for all systems including forest. Tree biomass and soil are the 2 major carbon pools as they represent over 90% of the total carbon whereas the contribution of coffee plants and litter are minimal. These preliminary results confirm the strong potential of coffee AFS, particularly shaded with native tree species, to act as C sink in the major coffee producing region of India.

Mots-clés Agrovoc : Coffea, agroforesterie, ombrage, carbone, séquestration du carbone

Mots-clés géographiques Agrovoc : Karnataka

Classification Agris : K01 - Foresterie - Considérations générales
F08 - Systèmes et modes de culture
P01 - Conservation de la nature et ressources foncières
F62 - Physiologie végétale - Croissance et développement

Auteurs et affiliations

• Vaast Philippe, CIRAD-PERSYST-UPR Ecosystèmes de plantations (IND)
• Guillemot Joannès ORCID: 0000-0003-4385-7656
• Vignault C.
• Charbonnier François
• Manjunatha M., UAS (IND)
• Devakumar Austin S., UAS (IND)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/558127/)

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