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Carbon neutral expansion of oil palm plantations in the Neotropics.

  • Quezada JC École Polytechnique Fédérale de Lausanne EPFL, School of Architecture, Civil and Environmental Engineering ENAC, Laboratory of Ecological Systems ECOS, 1015 Lausanne, Switzerland.
  • Etter A Department of Ecology and Territory, Pontificia Universidad Javeriana, Bogota, Colombia.
  • Ghazoul J Chair of Ecosystem Management, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETHZ, 8092 Zürich, Switzerland.
  • Buttler A École Polytechnique Fédérale de Lausanne EPFL, School of Architecture, Civil and Environmental Engineering ENAC, Laboratory of Ecological Systems ECOS, 1015 Lausanne, Switzerland.
  • Guillaume T École Polytechnique Fédérale de Lausanne EPFL, School of Architecture, Civil and Environmental Engineering ENAC, Laboratory of Ecological Systems ECOS, 1015 Lausanne, Switzerland.
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  • 2019-12-05
Published in:
  • Science advances. - 2019
Agriculture
Biomass
Carbon
Carbon Sequestration
Colombia
Conservation of Natural Resources
Ecosystem
Environment
Rainforest
Soil
English Alternatives to ecologically devastating deforestation land use change trajectories are needed to reduce the carbon footprint of oil palm (OP) plantations in the tropics. Although various land use change options have been proposed, so far, there are no empirical data on their long-term ecosystem carbon pools effects. Our results demonstrate that pasture-to-OP conversion in savanna regions does not change ecosystem carbon storage, after 56 years in Colombia. Compared to rainforest conversion, this alternative land use change reduces net ecosystem carbon losses by 99.7 ± 9.6%. Soil organic carbon (SOC) decreased until 36 years after conversion, due to a fast decomposition of pasture-derived carbon, counterbalancing the carbon gains in OP biomass. The recovery of topsoil carbon content, suggests that SOC stocks might partly recover during a third plantation cycle. Hence, greater OP sustainability can be achieved if its expansion is oriented toward pasture land.
Language
  • English
Open access status
gold
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Persistent URL
https://roar.hep-bejune.ch/global/documents/188436
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