Geographical survey of Taohuayuan

Taohuayuan belongs to the humid climate zone of mid-subtropical monsoon. It is characterized by warm and humid, four distinct seasons, cold wave in spring and rainy days, heavy rain and high temperature in summer, warm day and cool night in autumn and rare cold in winter. Landscape adjustment, there is a hole in the sky. The annual average temperature is 14.2℃- 15.7℃, which is 0.8℃-2.3℃ lower than that of Taoyuan County and similar to that of Zhangjiajie. The annual extreme high temperature is 39.8℃ (July) and the annual extreme low temperature is-11.5℃ (65438+1October), which is similar to Zhangjiajie. The annual precipitation is 65,438+0,500-000 mm, and water plays a significant role in temperature regulation. The sunshine hours over the years are 150 1.5 hours, which is 28 hours less than that in Taoyuan County. Over the years, there were 37.7 foggy days, 7.6 days more than Taoyuan County. In the morning, the shallow fog in the lower layer is as high as 130 days. Yuan Hongdao said: "The mountain turns into the sea" is a true portrayal.

The weather is in good condition. The frequency of disastrous weather is not great. In the nearly 20 centuries from the first year of Tang Yongzhen (805) to 2002, there was an average drought every 40 years and a flood every 27 years in Shui Yuan. Rainstorm weather with daily precipitation above 100 mm, with an average of 0.8 times a year. In the third year of Song Jianyan's reign (1 129), in April of the lunar calendar, "there was a flood in Taoyuan Cave in Langya, and boulders flowed down with it." Strong winds above magnitude 7, with an average of 9.3 times a year. Hail weather, about twice a year on average. Blizzard seldom happens. However, in the second year of Jiajing in the Ming Dynasty (1524), there was a "snowstorm, and many people died". It is rarely frozen. During the 48 years from 1954 to 2002, freezing weather occurred twice, once every 24 years on average.