Key points
- Soil organic matter plays an important role in nutrient cycling, soil water dynamics, soil physical integrity and contaminant attenuation.
- Results highlighted the complexity of soil C interactions even in a ‘simple’ system and the importance of appropriate modelling systems.
- Management practises can increase soil C stocks but these changes are difficult to study in the field.
- The computer model APSIM was used to simulate a simple dryland wheat management regime as part of an international collaboration.