草业学报2018，Vol.27Issue(3)：57-66,10.DOI:10.11686/cyxb2017163
基于APSIM的胡麻光合生产与干物质积累模拟模型
Simulation model of photosynthesis and dry matter accumulation in oilseed flax based on APSIM
摘要
Abstract
Photosynthesis and dry matter accumulation simulation models are the core of crop growth models.Taking existing models and using radiation use efficiency,and considering the influence of environmental factors and respiration consumption on photosynthetic rate,a physiological and ecological processes model for photosynthesis and dry matter accumulation in oilseed flax was established.This model produced improved simulation and applicability during validation experiments with different sowing methods,planting density and nitrogen and phosphorus levels.For example,the root mean squared error (RMSE) value with different planting densities ranged from 0.0807 to 0.2086,with a mean of 0.1584 while the R2 ranged from 0.9677 to 0.9965,mean 0.9869.The RMSE value with different nitrogen and phosphorus levels ranged from 0.0952 to 1.2375 with a mean of 0.4000 while the R2 range from 0.8964 to 0.9959,mean 0.9700.The biomass simulations from this model were compared with the APSIM (Agricultural Production System Simulator) and AquaCrop (FAO Crop Model to Simulate Yield Response to Water) with different nitrogen and phosphorus levels.The results of this study lay the foundation for the further development of oilseed flax growth models,and provide the basis for the application of growth model and management decisions in flax.关键词
胡麻/光合生产/干物质积累/呼吸作用/模拟模型Key words
oil flax/photosynthetic production/dry matter accumulation/respiration/simulation model引用本文复制引用
李玥,武凌,高珍妮,牛俊义..基于APSIM的胡麻光合生产与干物质积累模拟模型[J].草业学报,2018,27(3):57-66,10.基金项目
国家自然科学基金项目(31360315),甘肃农业大学盛彤笙科技创新基金项目(GSAU-STS-1717)和现代农业技术体系建设专项(CARS-17-GW-9)资助. （31360315）
