Avances en la determinación de la producción forrajera, forestal y mitigación de gases de efecto invernadero bajo aprovechamiento silvopastoril del Espinal Periestépico

A. MONTENEGRO; EZEQUIEL TERAN; Y. TORRES; F. BLAZQUEZ; J. E. GYENGE

Congreso; XII Congreso Internacional de Sistemas Silvopastoriles; 2023

The objective of this study was to evaluate the productive and mitigation capacity of greenhouse gas emissions (GHG) of agroecosystems located in the spinal Periestético, south of the province of Buenos Aires, by comparing contrasting vegetable cover (woody and herbaceous). To do this, three sampling sites were selected in Villarino and Patagones. Inventories of woody species, the dynamics of water at different soil depths, and forage productivity were carried out and methane concentration profiles (CH4) and potential oxidation rates of CH4 in laboratory conditions were analyzed. Tree density varied between 820 and 1088 individuals.ha-1, a higher value compared to the data of the Second National Inventory of Native Forests. Besides, it was found that forage species presented greater aboveground biomass compared to non-forage ones. As for the dynamics of soil water, differences were observed according to plant cover and soil depth. Finally, CH4 concentration profiles revealed different patterns between sites and vegetable cover. The results highlight the importance of considering plant cover and water dynamics in the sustainable management of these systems,thinking about their potential to reduce GHG emissions