Carbon sequestration of varieties coffee cropping systems in Tana Toraja district

Abstract

Abstract Increase of CO 2 concentration in the atmosphere has increasingly become an issue as it causes global warming. Such an increase is partly brought about by change in land use and land cover. The research is aimed at identifying type of cropping system in smallholder coffee plantation in Tana Toraja district that provide the best CO 2 sequestration. The CO 2 sequestration were analysed by sampling the CO 2 content of plant biomass, plant residues, stems, soil organic matters, and undercover plants at varieties of coffee cropping system in Rante Deata village. The best CO 2 sequestration is the cropping system of coffee with Gliricidia (Gliricidia sepium) as shading plant (231.25 MT CO 2 ha-1), followed by the intercrop of cocoa and coffee with Gliricidia (Gliricidia sepium) and suren (Toona sureni) as shading plant (198.55 MT CO 2 ha-1). The least CO 2 sequestration is obtained at the cropping system of coffee – clove intercrop without shading plant (137.44 MT CO 2 ha-1).

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