Fernández Prieto, LourenzoSoto Fernández, DavidCorbacho González, Beatriz2018-01-162018-01-162017http://hdl.handle.net/10347/16341This dissertation is framed within the theory of social metabolism and reconstructs the land uses and productivity of the main crop rotations in two case studies within the Atlantic territory of Galicia (NW Spain), Fonsagrada and Ribadavia. Both agroecosystems are complementary and representative of a diverse territory. We have applied the methodology of nutrient balances to the first one of these cases in order to assess its sustainability in the long term regarding the management of soil fertility. Results confirm a similar evolution to other case studies within Europe in terms of soil exhaustion and nutrient imbalances towards the end of the 19th century after a long process of agricultural intensification. This metabolic rift has been connected with the general agrarian crisis that affected the continent at this point, and with the process of socioecological transition from an organic into an industrial metabolism.engEsta obra atópase baixo unha licenza internacional Creative Commons BY-NC-ND 4.0. Calquera forma de reprodución, distribución, comunicación pública ou transformación desta obra non incluída na licenza Creative Commons BY-NC-ND 4.0 só pode ser realizada coa autorización expresa dos titulares, salvo excepción prevista pola lei. Pode acceder Vde. ao texto completo da licenza nesta ligazón: https://creativecommons.org/licenses/by-nc-nd/4.0/deed.glhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.glAgrarian historyenvironmental historysocial metabolismsoil fertilitynutrient balancessustainabilitymetabolic riftsocioecologic transitionMaterias::Investigación::55 Historia::5503 Historia de países::550301 Historia localMaterias::Investigación::55 Historia::5504 Historia por épocas::550402 Historia contemporáneadoctoral thesisopen access