Agricultural greenhouse gas emissions of an Indian village - Who's to blame: Crops or livestock?

Hemingway Charlotte, Vigne Mathieu, Aubron Claire. 2023. Agricultural greenhouse gas emissions of an Indian village - Who's to blame: Crops or livestock?. Science of the Total Environment, 856 (2):159145, 10 p.

Résumé : A carbon footprint assessment, combining various scales of analysis and including a territorial assessment, is proposed to estimate the greenhouse gas (GHG) emissions from crops and livestock in an Indian village impacted by both Green (for crops) and White (for milk) revolutions. It is based on the GHG assessment of 10 cropping systems, 8 livestock farming systems and 9 production systems using the comparative agriculture and Life Cycle Assessment (LCA) approaches. Results show that mineral fertilisation, irrigation and methane from paddy fields are the main drivers of emissions at plot level. Livestock farming systems emit from 4.7 tCO2eq/female to 8.6 tCO2eq/female, enteric fermentation being the first source of emission. Disparities at farm level are huge, ranging from 9 to 733 tCO2eq. At village level, emissions yield 37 tCO2eq/ha and livestock contributes to 60 % of GHG emissions. The high GHG emissions are a legacy of the Green and White Revolutions: the livestock population is high, fed on highly emissive fodder and concentrates and produces little milk. The results enhance our understanding of the share of carbon emissions from crops and livestock at farm and territorial level. They pinpoint the environmental and socio-economic downsides of livestock farming intensification.

Mots-clés Agrovoc : émissions de gaz à effet de serre, agriculture, système de culture, élevage, atténuation des effets du changement climatique, village, analyse du cycle de vie, structure agraire, lait, riz, empreinte carbone, méthane entérique

Mots-clés géographiques Agrovoc : Inde

Mots-clés libres : Carbon footprint, India, Livestock, Territorial Life Cycle Assessment, Comparative agriculture

Classification Agris : E10 - Économie et politique agricoles
F08 - Systèmes et modes de culture
L01 - Élevage - Considérations générales
A01 - Agriculture - Considérations générales

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

Agences de financement européennes : European Commission

Agences de financement hors UE : Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Agropolis Fondation

Projets sur financement : (FRA) IndiaMilk, (FRA) IndiaBio

Auteurs et affiliations

• Hemingway Charlotte, Université de Montpellier (FRA) - auteur correspondant
• Vigne Mathieu, CIRAD-ES-UMR SELMET (MDG) ORCID: 0000-0003-1543-9043
• Aubron Claire, Montpellier SupAgro (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/604097/)

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