Análisis económico de la evolución de un agrosistema de manejo agroecológico en etapa de consolidación

Los agrosistemas de manejo agroecológico suelen ser reconocidos por su contribución hacia la sustentabilidad desde las dimensiones Ambiental y Social, mas suele señalarse como un desafío el mejorar su contribución desde la dimensión Económica. En este trabajo se describe la evaluación económica de un agrosistema fruti hortícola de manejo agroecológico en etapa de consolidación, en dos años sucesivos. Para ello se midieron las variables Eficiencia, Productividad y Seguridad a través de una serie de indicadores. Como principales resultados se observa que la familia cumple sus objetivos, que son la autosuficiencia alimentaria y la generación de excedentes, en ese orden prioritario. También se observó que, en el camino de la consolidación, los indicadores económicos han mejorado de un año al otro, lo que puede señalar una tendencia positiva.Agroecological management agricultural systems are often recognized for their contribution to sustainability from environmental and social dimensions, most often noted as a challenge to improve its contribution from the Economic dimension. In this paper the economic evaluation of horticultural farms with agroecological management in a consolidation phase, in two successive years is described. To do the Efficiency, Productivity and Safety variables were measured through a series of indicators. The main results shows that the family fulfills its objectives, which are food self-sufficiency and generating surpluses, in that order of priority. It was also noted that in the way of consolidation, economic indicators have improved from one year to another, which may indicate a positive trend.Eje: A1: Sistemas de producción de base agroecológicaFacultad de Ciencias Agrarias y Forestale

Partnership for International Development: Finland–Argentina Conference on Circular Economy and Bioeconomy with Emphasis on Food Sovereignty and Sustainability

A joint collaboration between the Cuarto region of Argentina championed by the National University of Rio Cuarto and the Arctic Centre of the University of Lapland, Finland organised a conference on several topics that are related to food sovereignty, sustainability, circular economy and bioeconomy. The efficient utilisation of natural resources in both regions is an important theme in meeting the sustainable development goals agenda. Hence, this partnership between the partner institutions will lead to the cocreation of knowledge. The topics were multidisciplinary, and the discussion focussed on research and teaching opportunities for institutions in both countries. The experts from both countries will continue to engage on the possibility of promoting the research agenda in these important areas.EEA Marcos JuárezFil: Raheem, Dele. University of Lapland. Arctic Centre; FinlandiaFil: Soltermann, Arnaldo T. Universidad Nacional de Río Cuarto. Departamento de Química; ArgentinaFil: Tamiozzo, Laura Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez. Agencia de Extensión Rural Río Cuarto; ArgentinaFil: Cogo, Ariel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Área Metropolitana de Buenos Aires. Agencia De Extensión Rural Luján; ArgentinaFil: Favén, Leena. Centria University of Applied Sciences. RDI Chemistry and Bioeconomy; FinlandiaFil: Punam, Noor Jahan. University of Lapland. Arctic Centre; FinlandiaFil: Sarmiento, Claudio R. Universidad Nacional de Río Cuarto. Departamento de Química; ArgentinaFil: Rainosalo, Egidija. Centria University of Applied Sciences. RDI Chemistry and Bioeconomy; FinlandiaFil: Picco, Franco. Cooperative Initia Limited; ArgentinaFil: Morla, Federico. Universidad Nacional de Río Cuarto. Departamento de Química; ArgentinaFil: Nilson, Armando. Universidad Nacional de Río Cuarto. Departamento de Química; ArgentinaFil: Stammler-Gossmann, Anna. University of Lapland. Arctic Centre; Finlandi

Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary file