论文部分内容阅读
使用AquaCrop模型与WOFOST模型对哈尔滨地区春小麦生长进行模拟,以春小麦的地上生物量和产量及生育期土壤体积含水量为指标,对比分析两个模型的模拟精度。结果表明:使用经过校正的两个模型均能够较为准确地模拟哈尔滨地区春小麦的生长发育情况及产量形成,观测值与模拟值一致性较好,误差均在合理范围内。在非正常年际AquaCrop模型模拟结果与实测结果偏差较大,说明该模型适合于正常年景的作物生长模拟,WOFOST模型适应性更强。在对2011年土壤水分含量的模拟中,两个模型观测值与模拟值总体趋势相同,误差均在合理范围内。总体来说,经过修正和校准后的AquaCrop模型与WOFOST模型均适合寒地春小麦的模拟研究。
The spring wheat growth in Harbin was simulated using AquaCrop model and WOFOST model. The aboveground biomass and yield of spring wheat and the soil volumetric water content in growing period were used as indexes to compare the simulation accuracy of the two models. The results showed that both of the calibrated models were able to simulate the growth and yield formation of spring wheat more accurately in Harbin. The agreement between observed and simulated values was good and the errors were within reasonable limits. The results of AquaCrop model in non-normal years show great deviation from the measured data, which shows that the model is suitable for crop growth simulation in normal years and the WOFOST model is more adaptable. In the simulation of soil moisture content in 2011, the observed values of the two models have the same trend with the simulated values, and the errors are within a reasonable range. In general, the modified and calibrated AquaCrop and WOFOST models are suitable for simulating cold spring wheat.