A mixed-effect model approach for assessing land-based mitigation in integrated assessment models: A regional perspective

Diniz Oliveira Thais, Brunelle Thierry, Guenet Bertrand, Ciais Philippe, Leblanc Florian, Guivarch Céline. 2021. A mixed-effect model approach for assessing land-based mitigation in integrated assessment models: A regional perspective. Global Change Biology, 27 (29) : 4671-4685.

https://doi.org/10.1111/gcb.15738

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

	Version Online first - Anglais Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. Oliveira-ea2021-mixed-effect-approach.pdf Télécharger (1MB) \| Demander une copie
	Version publiée - Anglais Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. 598780.pdf Télécharger (1MB) \| Demander une copie

Quartile : Outlier, Sujet : BIODIVERSITY CONSERVATION / Quartile : Outlier, Sujet : ECOLOGY / Quartile : Outlier, Sujet : ENVIRONMENTAL SCIENCES

Résumé : Given the prospects of low short-term emissions reduction, carbon removals (CDRs) are expected to play an important role in achieving ambitious mitigation targets in future scenarios of integrated assessment models (IAMs), particularly Bioenergy with Carbon Capture and Storage (BECCS). In this paper, we explore the IAMC 1.5℃ database to depict the characteristics of the two main CDR options present in mitigation scenarios: BECCS and afforestation/reforestation. We apply a linear mixed-effect model to capture the specific regional and cross-IAM effects. Results reveal that the distribution of BECCS and afforestation deployment differs across IAMs and regions and, to a second extent, time. BECCS is preferred in the scenarios not for its ability to expand energy use but actually because it appears as an alternative to afforestation, which is associated with a decrease in energy use. However, the regional distribution of CDR deployment does not show a common pattern across scenarios and IAMs. Therefore, a more comprehensive investigation is needed before it can support policy proposals.

Mots-clés Agrovoc : extension forestière, reconstitution forestière, carbone, atténuation des effets du changement climatique, modélisation environnementale, modélisation des cultures, région biogéographique, empreinte carbone, empreinte écologique

Mots-clés libres : Afforestation, BECCS, IAMs, Mitigation scenarios, Mixed-effect model, Regional analysis

Classification Agris : K10 - Production forestière
F07 - Façons culturales

Champ stratégique Cirad : CTS 6 (2019-) - Changement climatique

Auteurs et affiliations