基于RCSODS模型的东南沿海双季稻生长发育及产量模拟和验证

Simulation and Testification of the Developmental Stage and Yield of Double-Harvest Rice in Southeastern Coastal Region of China by RCSODS Model

通过在东南沿海稻区(福建)不同区域开展的双季稻主栽品种田间观测试验,采用RCSODS模型,结合水稻品种特性和稻区气候特点,对模型参数进行调整,进行水稻试验品种的生长发育期及产量模拟预测;同时以田间观测数据验证模型模拟的准确性,结果表明基于RCSODS模型的水稻生育期模拟误差在0～5d,产量模拟的平均误差在5%以内,模拟准确率较高,模拟结果基本符合东南沿海地区水稻生长发育实际情况。

Simulations and forecasts of the developmental stage and yield of experimental rice species were conducted by RCSODS model according field-observation experiments of the dominate species of Double-Harvest Rice in Southeastern coastal region of China （Fujian）. Parameters of the model were adjusted by the characters of the rice species and the climate of rice-planting areas. Meanwhile, data of the field observation were used to testify the simulation results of the RCSODS model. The simulation deviation of the developmental stage is between zero to five days, and the average simulation deviation of the yield is within 5%. It shows that simulations of the rice developmental stage and yield by RCSODS are accurate and the simulations are general identical with the rice growing in the farm of Southeastern Coastal Region of China.