Stubble Initiative: Modelling the effect of residue management on soil nitrogen dynamics and crop production

This data collection includes the data generated under the modelling component of a GRDC project. The APSIM model was optimized using data set collected from Termora, Horsham, and Karoonda to simulate observed soil mineral nitrogen dynamics, water dynamics, residue recovery and crop production. The key outputs are the optimized two model parameters: the decay rate constant of humic organic carbon and carbon use efficiency of microbial decomposition.

本数据集涵盖澳大利亚谷物研发公司（GRDC）某项目建模模块所生成的相关数据。研究人员利用从特莫拉（Termora）、霍舍姆（Horsham）及卡隆达（Karoonda）采集的数据集对APSIM模型（Agricultural Production Systems Simulator）进行优化，以模拟实测的土壤矿质氮动态、土壤水分动态、作物残体归还动态及作物生产状况。本次建模的核心输出为两组优化后的模型参数：腐殖质有机碳衰减速率常数，以及微生物分解过程的碳利用效率。