Time Distribution Characteristics of Spring in China
The earliest time for China to enter spring is before March 1, and the latest is after May 15.
The earliest areas are Guangdong, Guangxi, southern Yunnan, Hainan, Taiwan Province and southern Fujian, which basically entered spring before March.
The area from the south of Huaihe River in Qinling Mountains to Nanling Mountain, including Zhejiang, Jiangxi, Hunan, Guizhou, Chongqing, Sichuan, Shanghai, Anhui, Hubei, Jiangsu, Henan, southwestern Shaanxi and Shandong, has basically entered spring before April.
The latest spring in China is located in the northeast of China, near Mohe River. Because of the high latitude, spring comes after mid-May. In addition, other northwest and Qinghai-Tibet regions basically entered the spring before May.
Time distribution characteristics of spring in China;
The idea of ordinary people should start from the southernmost tip of China, that is, Zengmu shoal and Nansha Islands, and then gradually enter spring from south to north and from west to east. This is a very common idea, and it has some basis, because the closer to the equator, the hotter the weather. However, because the main road in Ma Pingchuan is not a pure plain, there are many mountains and lakes, which will change the climate of a region, thus changing the time when this region enters spring. The influence of cold air in northern Siberia is also a factor that must be considered. Therefore, the time of spring in various regions is not exactly in the order from south to north and from east to west, with a little difference. Let's take a look at when all regions of our country entered the spring.
The southernmost tip of the motherland, that is, Zengmu shoal and Nansha Islands, is close to the equator. It is hot and rainy all year round, which basically belongs to summer, so there is no so-called spring here. In the alpine region, that is, the Qinghai-Tibet Plateau, where the altitude is more than 5000 meters, the temperature is very low all year round, such as Mount Everest, and there is basically no spring, summer, autumn and winter, that is, it is winter all year round. So there is no concept of spring here. Apart from these two extreme areas, let's look at the order in which other areas enter spring.
What's the difference between spring and beginning of spring?
Beginning of spring defined spring from the perspective of astronomy:
One theory holds that it started in spring. The reason is that "beginning of spring" is the first of the 24 solar terms. Beginning of spring usually falls from February 4th to 5th on the Gregorian calendar, just within ten days before and after the Spring Festival. However, just taking "beginning of spring" as beginning of spring is not in line with the actual weather conditions.
The second is the traditional saying. The spring of China lunar calendar is correction month, February and March. It is called "early spring" in Meng Chun, "mid-spring" in February and "Yangchun" in March. This statement is more realistic.
Entering spring is the spring rule of modern meteorology;
In climatology, spring refers to the period when the temperature rises after winter (every five days), and the average temperature is between 10℃ and 22℃.
The ancient "Sili" refers to the beginning of spring, summer, autumn and winter, and its agricultural meaning means "planting in spring, growing in summer, harvesting in autumn and storing in winter", which summarizes the whole process of the relationship between agricultural production and climate. China has a vast territory, complicated geographical conditions, extremely different climate and different seasons. Therefore, "Li Si" cannot be applied to all parts of the country. It is more scientific to judge whether it is spring in the morning and evening with the average temperature as the standard.