The initial SOC content had the largest impact on the value of SOC, followed by the climate and the fertilization practices. We statistically analyzed the model’s outputs to determinate the relative contributions of soil parameters, climate, and farming practices on SOC. This design resulted in the transposition of contrasting soils and climates in our simulations, giving soil–climate combinations that do not occur in the study area to help provide insights into the importance of the climate constraints on SOC.
#PLANT GROWTH APSIM SIMULATOR#
We undertook a modeling study with the Agricultural Production Systems sIMulator modeling framework, by combining contrasting Australian soils, climates, and farming practices (crop rotations, and management within rotations, such as fertilization, tillage, and residue management) in a factorial design. This study aimed to further explore the complex interactions of soil, climate, and farming practices on SOC. The review of literature pertaining to soil organic carbon (SOC) dynamics within Australian grain farming systems does not enable us to conclude on the best farming practices to increase or maintain SOC for a specific combination of soil and climate. Lucia, QLD, AustraliaĬarbon sequestration in agricultural soils has the capacity to mitigate greenhouse gas emissions, as well as to improve soil biological, physical, and chemical properties. Agriculture Flagship, Commonwealth Scientific and Industrial Research Organisation, St.
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