CRUZ, Pablo; WINKEL, Thierry; LEDRU, Marie-Pierre; BERNARD, Cyril; EGAN, Nancy; SWINGEDOUW, Didier; JOFFRE, Richard

doi:10.1126/sciadv.1701740

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CRUZ, Pablo
AGroécologie, Innovations, teRritoires [AGIR]

WINKEL, Thierry
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]

LEDRU, Marie-Pierre
Institut des Sciences de l'Evolution de Montpellier [UMR ISEM]

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Science Advances. 2017-12-20, vol. 3, n° 12, p. e1701740

Resumen en inglés

Archaeological research suggests significant human occupation in the arid Andean highlands during the 13th to 15th centuries, whereas paleoclimatic studies reveal prolonged drier and colder conditions during that period. Which subsistence strategy supported local societies in this harsh environment? Our field and aerial surveys of archaeological dwelling sites, granaries, and croplands provide the first evidence of extended pre-Hispanic agriculture supporting dense human populations in the arid Andes of Bolivia. This unique agricultural system associated with quinoa cultivation was unirrigated, consisting of simple yet extensive landscape modifications. It relied on highly specific environmental knowledge and a set of water-saving practices, including microterracing and biennial fallowing. This intense agricultural activity developed during a period of unfavorable climatic change on a regional and global scale, illustrative of efficient adaptive strategies to cope with this climatic change.< Leer menos

URI

https://oskar-bordeaux.fr/handle/20.500.12278/188755

DOI

http://dx.doi.org/10.1126/sciadv.1701740

Proyecto ANR

Mediterranean Center for Environment and Biodiversity - ANR-10-LABX-0004

Centros de investigación

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805