利用混合蛙跳算法优化基于APSIM的旱地小麦产量形成模型参数

聂志刚,李广,雒翠萍,马维伟,代永强

Parameter Optimization in APSIM-Based Simulation Model for Yield Formation of Dryland Wheat Using Shuffled Frog Leaping Algorithm

Zhi-Gang NIE,Guang LI,Cui-Ping LUO,Wei-Wei MA,Yong-Qiang DAI

表2 小麦产量形成模型参数优化比较

Table 2 Comparison between the SFLA-based optimized and default values in wheat yield formation model

参数 Parameter 默认值 Default value 优化值 Optimized value 每克茎籽粒数 Grain number per gram stem (grain g-1) 25 26 开花到灌浆开始日潜在籽粒平均灌浆速率 Daily potential rate of grain filling from flowering to start of grain filling (g grain-1) 0.00100 0.00112 灌浆期日潜在籽粒平均灌浆速率 Daily potential rate of grain filling during grain filling (g grain-1) 0.00200 0.00249 日潜在籽粒平均氮积累速率 Daily potential rate of nitrogen accumulation (g grain-1) 0.000055 0.000067 日籽粒氮积累速率下限 Minimum rate of nitrogen accumulation (g grain-1) 0.000015 0.000018 单株最大籽粒干重 Maximum grain dry weight per plant (g) 0.0400 0.0437