Abstract: In this paper, by analysing some forestry-climate indexes, the 9 speciesof Paulownia in China are divided into 2 climato-ecological types, the lowwarm index-middle rain coefficient type and the high warm index-high raincoefficient type. Even though the cold resistance are distinct among differentspecies of Paulownia, they require more water in growth period. Based on theanalysis of the phenological records from 28 locations in Cast China, a phe-nology-geographic model of Paulownia is set up, which shows that the dateof each phenophase varies regularly with the latitude, longitude, and altitude.The first date of flowering period in any place is related to the temperatureof certain period before the flowering.

Key words: Paulownia, Climato-ecological type, Phenophase