The vertical climate in mountain and the poem of Bai Juyi in Tang Dynasty: "Peach Blossom in Mountain Temple begins to bloom in April. I hate spring for a long time, but I don't know where to turn". It vividly reflects that the temperature increases with the altitude. The vertical difference of phenology in mountainous areas. Usually, the temperature drops by .6℃ every 1 meters above sea level. The altitude of Dalin Temple in Lushan Mountain is between 1,1 and 1,2 meters, which is about 6℃ lower than that of "human" (the flat land in Jiujiang City, with an average elevation of 32 meters). Therefore, the flowering time of peach blossoms is 2 to 3 days behind, so the phenology on the mountain is delayed by one month compared with that on the mountain.