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Adaptation of Agro-IBIS model for Eucalyptus carbon budget estimation at regional level- a case study in Sao Paulo State, Brazil

Almeida Colmanetti Michel Anderson, Vianna Cuadra Santiago, Attia Ahmed, Nouvellon Yann, Guillemot Joannès, Campoe Otávio, Cabral Osvaldo, Laclau Jean-Paul, Galdos Marcelo, Camargo Lamparelli Rubens Augusto, Bortolucci Jair, Pereira Bruno, Le Maire Guerric. 2019. Adaptation of Agro-IBIS model for Eucalyptus carbon budget estimation at regional level- a case study in Sao Paulo State, Brazil. Pesquisa Florestal Brasileira, 39, n.spéc., Résumé : pp. 255-256. IUFRO World Congress 2019 "Forest Research and Cooperation for Sustainable Development". 25, Curitiba, Brésil, 29 September 2019/5 October 2019.

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Url - éditeur : https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2043/900

Abstract : Highly productive fast-growing Eucalyptus plantations cover more than 5 million hectares in Brazil and exhibit very dynamic carbon fluxes throughout their 6-7 year rotations. These plantations quickly shift from C sources at the beginning of the rotation to large C sinks until harvest. In order to get a model simulating carbon pool and fluxes for both Eucalyptus plantations and other crops, we integrated several sub-models of the Eucalyptus-dedicated Generic Decomposition And Yield Model (G'DAY) into the large scale and multi-cover model Agro-IBIS (Integrated Biosphere Simulator). The G'DAY model was previously parametrized and validated using large experimental datasets obtained in commercial eucalypt plantations in the state of Sao Paulo. Implementing an Eucalyptus plantation cover type within AgroIBIS. which had no Plant Functional Type dedicated to fast-growing forest plantations, required important changes in the carbon allocation turnover sub-models. This study included three phases: (1) the computational modification of AgrolBIS; (2) the model parametrization, calibration and validation using data from intensively monitored sites or inventories datasets; and (3) model application at regional scale using sets of parameters which were considered to be constant in space and/or time based on data from the local experiments, and other sets of parameters which could vary spatially. Carbon fluxes of Eucalyptus plantations were simulated at the regional scale, and their inter-annual and spatial variabilities were analysed. Such spatial and multiannual quantification of carbon fluxes at large scales brings a better understanding of these forest ecosystems on global carbon cycling, which is a prerequisite to support policy decisions.

Mots-clés Agrovoc : Eucalyptus, Plantation forestière, Cycle du carbone, séquestration du carbone, écosystème forestier, Politique forestière

Mots-clés géographiques Agrovoc : Brésil

Classification Agris : K10 - Forestry production
P33 - Soil chemistry and physics
P01 - Nature conservation and land resources

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations

  • Almeida Colmanetti Michel Anderson, UNICAMP (BRA)
  • Vianna Cuadra Santiago, EMBRAPA (BRA)
  • Attia Ahmed, UNICAMP (BRA)
  • Nouvellon Yann, CIRAD-PERSYST-UMR Eco&Sols (THA)
  • Guillemot Joannès, CIRAD-PERSYST-UMR Eco&Sols (BRA) ORCID: 0000-0003-4385-7656
  • Campoe Otávio, UNESP (BRA)
  • Cabral Osvaldo, EMBRAPA (BRA)
  • Laclau Jean-Paul, CIRAD-DG-Direction générale/Service d'appui auprès des unités de recherche et des services (FRA) ORCID: 0000-0002-2506-214X
  • Galdos Marcelo, University of Leeds (GBR)
  • Camargo Lamparelli Rubens Augusto, UNICAMP (BRA)
  • Bortolucci Jair, UNICAMP (BRA)
  • Pereira Bruno, UNICAMP (BRA)
  • Le Maire Guerric, CIRAD-PERSYST-UMR Eco&Sols (FRA) ORCID: 0000-0002-5227-958X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/594487/)

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