Desafios e perspectivas da sustentabilidade em agroecossistemas no estuário do Rio São Francisco

Abstract

The current development model puts at risk the stability of natural systems and therefore the sustainability of agro-ecosystems. The construction of dams and regulating the flow is directly implicated in the hydrological system of the Lower São Francisco (BSF), reflected in the erosion and sedimentation processes conceived in the context of man-nature relationship new references to the environment, endangering the traditional way of life of the local population, changing their perception of the estuary and the relationships established with this living space. The aim of this study is to establish the main obstacles and perspective for sustainability of agro-ecosystems of the estuary. A systemic and following the steps MESMIS methodology perspective, the critical points of the system were identified and discussed, as well as built attributes and diagnostic standards for the traditional and modern family agroecosystems of rice growing. The control of the river channel flows caused changes in environmental dynamics, reduced biodiversity, committed to sustainability of agro ecosystems, promoted the exploitation of the estuary of the resources contributed to the precarious as the living conditions of farmers and fisherman / collector, constituting obstacles to sustainable development in the region