以采集的北京市海淀区东北旺试验站大量的田间实测数据为基础,对农业生产系统模型（Agricultural Production Systems Simulator,APSIM）进行详细的参数灵敏度分析与标定,结果显示：标定模拟的土壤剖面体积含水量动态的精度较高,平均相对误差为13.41%;标定模拟的土壤剖面硝态氮浓度动态的精度较低,平均的相对误差为29.69%;标定模拟的冬小麦叶面积指数、生物量和产量的平均相对误差分别为36.49%、24.18%和32.31%;标定模拟的夏玉米叶面积指数、生物量和产量的平均相对误差分别为31.76%、35.84%和26.44%。以上标定模拟的精度就田间实际情况而言,总体是可以接受的。经过详细的参数标定后的APSIM模型将为深入探讨不同农田管理措施下水氮利用效率的长期变化提供可靠的定量分析手段。%Detailed measurements of field experiments in Dongbeiwang Station,Beijing,were used to calibrate the Agricultural Production Systems Simulator（APSIM）.Volumetric soil water content in the individual soil layers were well simulated,with a profile-averaged MRE=13.41%.In contrast to volumetric soil water content,the soil nitrate concentration in the individual soil layers were simulated not so well,with a profile-averaged MRE=29.69%.The simulated winter wheat LAI,above ground biomass and yield predictions were acceptable with MRE of 36.49%,24.18% and 32.31% respectively.Summer maize LAI,above ground biomass and yield with MRE of 31.76%,35.84% and 26.44% respectively.The overall results were found to be acceptable.The calibrated model will be used for evaluation of long-term WUE and PFPN variation between different agronomic management.
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机译：连续施氮对冬小麦-夏玉米轮作体系产量和氮素吸收与利用的影响Effects of Continuous Nitrogen Application on Grain Yield and Nitrogen Uptake and Utilization in Winter Wheat-Summer Maize Rotation System
