Abstract: The impact of increasing ozone (O₃) concentration in troposphere on crops has being drawn more and more concern, and its simulation study has become a hotspot. To build effectual simulation models to evaluate and predict the crop loss by O₃ would help to the ozone pollution control and agriculture safety. According to the relationships between crop growth and O₃, the models could be classified as statistical models and mechanism models. In this paper, concentration-, dose/exposure- and flux-based statistical models were introduced, based on their development process, and three influential mechanism models (CLASS, Martin, and AFRCWHEAT2-O₃) were discussed in pivot. The limitations of each model were pointed out, and the development trends of related studies in China were put forward.

Key words: Northeast China transect (NECT), Stipa community, Precipitation, Net primary productivity (NPP)