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Chinese Journal of Applied Ecology ›› 2005, Vol. 16 ›› Issue (3): 486-490.

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Relationships between climate change and rice development and its yield formation:A simulation study

LIU Taoju, YIN Xinyou, QI Changhan, TANG Jianjun, CHEN Meiqiu   

  1. College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
  • Received:2004-02-12 Revised:2004-07-11 Online:2005-03-15 Published:2005-03-15

Abstract: With the application of mechanistic model (RICAM 1.3,RIce growth Calendar Model),this paper simulated the rice development and its yield formation under different climatic conditions at multi locations of Asia.A three stage Beta model (3s Beta) was developed to predict the flowering stage of rice and to describe its three successive phases of photo thermal response, i.e.,basic vegetative phase,photoperiod sensitive phase,and post photoperiod sensitive phase.The 1980~1989 multi location data of Morioka (Japan,39°43'N),Nanchang (China,28°36'N) and Los Banos (Philippines,14°11'N) were used to verify the suitability of the model in studying eco system change.Comparisons of simulated results with observed data showed that this model could generally predict the eco physiological processes of rice,and performed very well over a wide range of environments.

Key words: Climate change, Rice development and its yield formation, Simulation

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