This study aimed at the observations of the phonological period, temperature and Rainfall as well as the dynamic analysis of fruit sugar and acid metabolism of4citrus Varieties on three climate zones of Guibei, Guizhong and Guinan。And based on the Various climatic zones meteorological data, which the factors were analyzed and compared the effects of the metabolism of citrus fruit sugar and acid, the purpose was To find differences to provide scientific theoretical basis for the divisions the most suitable c...