The aims of this study were to assess the long-term effects of different CPR on SOC stocks on the subsoil, and to draw conclusions about the capacity of CPR to sequester C in Uruguay.We conclude that incorporating pastures in continuous crop sequences increased soil organic carbon stocks through the soil profile by an average of 28%.
Soil organic carbon (SOC) sequestration is key in mitigating climate change. Rice systems rotated with perennial pastures are being intensified in South America to increase annual grain productivity, but the effects on SOC and rice yield remain poorly understood. These results highlight insights for the design of rice-based rotations that increase or sustain SOC and increase rice yield, helping simultaneously meet climate change and food production goals.
El análisis de la dinámica de la respuesta en desempeño animal a la suplementación invernal sobre campo natural, en una amplia serie de experimentos, reveló marcadas diferencias en su fase inicial. Específicamente, la presencia o no de un período de entre 400 y 800 grados.día* durante el cual la suplementación no mejora el desempeño animal y que, por ende, impacta negativamente en la eficiencia. En parte, estas diferencias están asociadas a la disponibilidad de forraje, la tasa de sustitución y el clima.
ABSTRACT.- Southeast Asia (SEA) is a key producer and exporter of rice, accounting for around 28% of rice produced globally. To effectively mitigate greenhouse gas (GHG) emissions in SEA rice systems, field methane (CH4) and nitrous oxide (N2O) emissions have been intensively studied. However, an integrated assessment of system-level GHG emissions which includes other carbon (C) balance components, such as soil organic carbon (SOC) or energy use, that can positively or negatively influence the net capacity for climate change mitigation is lacking.
ABSTRACT.- Southeast Asia (SEA) is a key producer and exporter of rice, accounting for around 28% of rice produced globally. To effectively mitigate greenhouse gas (GHG) emissions in SEA rice systems, field methane (CH4) and nitrous oxide (N2O) emissions have been intensively studied. However, an integrated assessment of system-level GHG emissions which includes other carbon (C) balance components, such as soil organic carbon (SOC) or energy use, that can positively or negatively influence the net capacity for climate change mitigation is lacking.
