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Accueil du site → Doctorat → Argentine → Sociedades y agroecosistemas pastoriles de alta montaña en La Puna. Departamento Yavi, Provincia de Jujuy, República Argentina

Universidad Nacional de Córdoba (2012)

Sociedades y agroecosistemas pastoriles de alta montaña en La Puna. Departamento Yavi, Provincia de Jujuy, República Argentina

Quiroga Mendiola, Mariana

Titre : Sociedades y agroecosistemas pastoriles de alta montaña en La Puna. Departamento Yavi, Provincia de Jujuy, República Argentina

Auteur : Quiroga Mendiola, Mariana

Université de soutenance : Universidad Nacional de Córdoba

Grade : Doctora en Ciencias Agropecuarias 2012

Présentation
This study aimed to evaluate the ecological and socio-economic sustainability of the agro-pastoralists in arid high mountain, and discuss the claim that Puna is at risk of desertification through overgrazing caused by the use of natural grassland. We have characterized the pastoral practice of peasants in the Puna of Jujuy, as a result of historical and social processes, and we have explored the effect of the disturbance caused by grazing on the structure and function of native vegetation. The results show that pastoral agroecosystems of the Puna have been formed along an economic history marked by the exaction of labor from the community and socio-political changes that generate the gradual abandonment of old techniques of utilization of the space-temporary heterogeneity of landscape. The inter-community and social web maintains its role as a buffer on the impact of economic downturns, but there is a gradual abandonment of pastoral “puestos”, a reduction of herds and an increase of family income relative to extrapredial activities and transfers from the state. The vegetation shows no structural or functional changes in response to different forms of grazing pressure. We discussed a model of States and Transitions to find significance of possible risk of threats to ecosystem resilience and resistance. It is based here that pastoral practices Suripujio manage spatiotemporal variability of native vegetation in a sustainably way.

Présentation et version intégrale

Page publiée le 31 août 2016, mise à jour le 3 juillet 2017