Today is the "light snow" of the 24 solar terms. As a time system and practice created and inherited by the Chinese nation, the 24 solar terms contain rich ecological and cultural resources. They represent the wisdom of Chinese people to respect, adapt to and protect nature, and provide valuable wealth for the construction of ecological civilization. The 24 solar terms, a romantic and poetic ecological picture of Chinese natural time, represent the ecological picture of Chinese people who have been living in harmony with nature for thousands of years, and demonstrate the cultural genes of the Chinese people who advocate and love nature. Following nature is an important standard and distinctive feature for Chinese people to formulate and name time. From the beginning of spring to the great cold, the twenty-four solar terms are not simply a list of numbers, but show the natural beauty of the four seasons flowing with changes in seasons, precipitation, temperature, phenology, etc. For example, from rain to valley rain, it represents the precipitation change from "drizzle" in early spring to "rain like grain" in late spring. From the name alone, the 24 solar terms are full of natural romance and verve. The seventy-two seasons that "match" the twenty-four solar terms, subdivide one solar term into three seasons, and mark the track of time flow with typical phenological phenomena such as the sprouting, flowering, fruiting and falling leaves of plants, the hibernation, chirping, breeding and migration of animals, and the melting of ice and snow, lightning and thunder. Three days after the beginning of autumn, when the cool wind comes, the white dew drops, and the cicadas chirp, the scene of the beginning of autumn is depicted in a few words in detail and vividly. Phenology is an important indicator to measure the trend of natural ecological changes. The 24 solar terms and 72 climatic periods constitute a time cognition system, reflecting the close relationship between Chinese people and nature. The natural object is the symbol of the time of Chinese solar term culture. Most of the seasonal items of the 24 solar terms are natural. Jingchu Suishiji records: "On the day of the beginning of spring, I learned that Jian color was worn by Yan." It says that the custom of wearing colored swallows as hair ornaments in the hair on the beginning of spring is based on the idea that Yan came to spring. This kind of cultural expression of saving things towards nature interprets the Chinese people's pursuit of integrating life into nature. The Chinese cultural time respects the ecological concept of nature. There is an inherent and indivisible relationship between human beings and nature. The twenty-four solar terms contain the cultural spirit of being close to nature and walking into nature, and highlight the shaping function of natural space and its things on human life and thought. Qingming is also traditionally called the "Spring Festival". Many traditional outdoor activities, such as flying kites, enable people to cultivate their mood and strengthen their physique through "communication" with nature. Such solar terms are conducive to enhancing people's understanding of the importance of nature and strengthening the emotional connection between human beings and nature. The changes of stars and seasons are shaping the natural landscape and affecting people's lives. Adhering to the spirit of "following nature", Chinese ancestors have gradually formed a cultural tradition of welcoming the four seasons and respecting nature. The Mid mountain Lixia Festival in Hangzhou, Zhejiang Province, and the Frost Drop Festival in the Zhuang nationality region in Guangxi Province all show the Chinese cultural spirit of loving nature. The heaven and the earth merge and everything comes into being. Yin and Yang change with each other. The Spring Equinox Festival, the Autumn Equinox Festival, the Summer Solstice Festival and the Winter Solstice Festival are the wisdom expressions of the Chinese civilization to look up at the sky and look down on the earth, which fully demonstrate the cultural tradition of the Chinese nation's admiration for nature.