Archontoulis SV, Huber I, Miguez FE, Thorburn PJ, Rogosvka N, Laird DA, 2016. A model for mechanistic and system assessments of biochar effects in soils and crops and trade-offs. GCB-Bioenergy, doi:10.1111/gcbb.12314
To develop a mechanistic biochar simulation model to address complex interactions between biochar types, soils, crops, climate and management
We developed the biochar model within APSIM by synthesizing broad literature information. The model has algorithms that mechanistically connect biochar to soil organic carbon (SOC), soil water, bulk density, pH, cation exchange capacity, and organic and mineral nitrogen (Fig. 1). Soil moisture– temperature–nitrogen limitations on the rate of biochar decomposition were included as well as biochar-induced priming effect on fresh and soil organic matter mineralization (Fig. 1). The model has 10 parameters that capture the diversity of biochar types, 15 parameters that address biochar-soil interactions and 4 constants. The range of values and their sensitivity is reported together with model performance again field data (Fig. 2).