Based on the existing models and published research results,considering the balance between explanation and application,a simulation model for Arachis hypogaea(L.) photosynthesis and dry matter production was established.In the model,Gauss integration method was adopted to effectively calculate daily canopy photosynthesis which sufficiently included the effects of temperature and CO2 on photosynthesis.The validation of the model using data sets showed that the model could well predict the accumulation dynam...