JOURNAL OF NATURAL RESOURCES ›› 1997, Vol. 12 ›› Issue (4): 323-329.doi: 10.11849/zrzyxb.1997.04.005

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

THE ESTIMATION OF TEMPERATURESUNLIGHT POTENTIALIN RELATION TO THE RICE QUALITY AND ITS REGIONAL DISTRIBUTION IN CHINA

Zhang Songwu, Cheng Fangmin, Wu Yongchang   

  1. Nothwest Agricultural University, Yangling 712100
  • Received:1997-01-02 Revised:1997-05-13 Online:1997-12-25 Published:1997-12-25

Abstract: n the basis of the research of the relationship between temperature solar radiation and rice quality in the paste filling stage,the temperature function in relation to the rice quality is established first.Then through calculating the rice quality's descending rate caused by solar radiation change under different temperature conditions, the solar radiation revisionary function in relation to the rice quality is set up. The temperature sunlight potential calculation formula which is used to estimate the climatic resource latent force in relation to the rice quality of a certain place is obtained by combining the 2 functions mentioned above. According to this formula,the temperature sunlight potential values in relation to the rice quality are estimated in all chinese rice regions.The regional distribution of the potential reveals the following :the climate resource in relation to the rice quality has universal adaptability to the production of good quality rice;the potential varies with the space and the time, so in different regions and seasons it is different;the potential also has vertical zonality structure in the regions with complex terrain.

Key words: emperature function in relation to the rice quality, solar radiation revisionary function in relation to the rice quality, temperaturesunlight potential in relation to the rice quality, regional distribution