Measurements and APSIM modelling of soil C and N dynamics
CJ Smith, BCT Macdonald, H Xing, OT Denmead, E Wang, G McLachlan, S Tuomi, D Turner, D Chen
Soil Research | CSIRO PUBLISHING | Published : 2020
Process-based models capture our understanding of key processes that interact to determine productivity and environmental outcomes. Combining measurements and modelling together help assess the consequences of these interactions, identify knowledge gaps and improve understanding of these processes. Here, we present a dataset (collected in a two-month fallow period) and list potential issues related to use of the APSIM model in predicting fluxes of soil water, heat, nitrogen (N) and carbon (C). Within the APSIM framework, two soil water modules (SoilWat and SWIM3) were used to predict soil evaporation and soil moisture content. SWIM3 tended to overestimate soil evaporation immediately after r..View full abstract
Awarded by Australia-China Joint Research Centre (JRC) for Healthy Soils for Sustainable Food Production and Environmental Quality
This study was supported by the funding from CSIRO Land and Water Capability Development Program, the CSIRO and Chinese Academy of Agricultural Sciences (CAAS) through the research project 'Scientific Benchmarks for Sustainable Agricultural Intensification', the Australian Government through its Department of Agriculture's Filling Research Gap (FtRG) program and a Grant Project (ACSRF48165) through the Australia-China Joint Research Centre (JRC) for Healthy Soils for Sustainable Food Production and Environmental Quality. We gratefully acknowledge the support from Seija Tuomi and Gordon McLachlan and from the Chemistry Department, University of Wollongong.