Convergence between satellite information and farmers' perception of drought in rangelands of North-West Patagonia, Argentina

Solano-Hernández A., Bruzzone Octavio A., Groot Jeroen C. J., Laborda Luciana, Martinez A., Tittonell Pablo, Easdale Marcos Horacio. 2020. Convergence between satellite information and farmers' perception of drought in rangelands of North-West Patagonia, Argentina. Land Use Policy, 97:104726, 10 p.

Quartile : Q1, Sujet : ENVIRONMENTAL STUDIES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Géographie-Aménagement-Urbanisme-Architecture

Résumé : Drought is a complex natural hazard with social and environmental implications. Satellite information is increasingly used to support decision-makers in preventing or coping with the negative impacts of drought. The integration of local and scientific knowledge to support drought monitoring is still far from being the main procedure in the development of drought monitoring and early warning systems. This study aimed at assessing the degree of convergence between satellite information on the effect of droughts on rangeland vegetation, from time series analysis, and farmers' perception of drought in North-West Patagonia, Argentina. We characterised the scientific evidence of drought in terms of duration, spatial distribution, most severe years and recovery for the period 2000–2018 by identifying inter-annual NDVI changes. Farmers' perceptions and experiences of drought were studied with open-ending interviews, with respect to occurrence, duration and recovery for that period. Satellite information matched farmers' perception of drought at a regional scale, emphasising the value of remote sensing tools in supporting regional policy decision-making. However, farmers' perceptions and recall of past drought impacts were more diverse than satellite information at a local level, highlighting the need for knowledge integration at finer scales.

Mots-clés Agrovoc : sécheresse, télédétection, système d'alerte rapide, agriculteur, parcours, système d'aide à la décision, impact sur l'environnement, distribution spatiale, analyse de séries chronologiques

Mots-clés géographiques Agrovoc : Argentine

Mots-clés libres : Irrigated Land, Livestock, NDVI, Pastoralism, Traditional ecological knowledge, Wavelets

Champ stratégique Cirad : CTS 5 (2019-) - Territoires

Agences de financement hors UE : Instituto Nacional de Tecnología Agropecuaria, Ministerio de Ciencia, Tecnología e Innovación

Auteurs et affiliations

• Solano-Hernández A., Wageningen University (NLD)
• Bruzzone Octavio A., Instituto de Investigaciones Forestales y Agropecuarias Bariloche (ARG)
• Groot Jeroen C. J., Wageningen University (NLD)
• Laborda Luciana, Instituto de Investigaciones Forestales y Agropecuarias Bariloche (ARG)
• Martinez A., INTA (ARG)
• Tittonell Pablo, CIRAD-PERSYST-UPR AIDA (FRA)
• Easdale Marcos Horacio, Instituto de Investigaciones Forestales y Agropecuarias Bariloche (ARG) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603553/)

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