Simulation of Stomatal Conductance of Soybean in Western Semi-arid Region of Heilongjiang Province

摘要

Through the analysis of the observation data, the simulation based on the two kinds of exited models named Jarvis model and Coupling model of stomatal conductance had been carried out and compared. The results showed that the Jarvis model is better than that of the coupling model in simulation under the appropriate water condition in the whole growth period of soybean (R2=0.58). And the leaf somatal conductance is sensitive to photosynthetically active radiation (par), vapor pressure deficit(vpd) and air temperature (ta).