"Wait for the cool wind, the White Dew, and the cicadas." August 7 ushered in the beginning of autumn. The beginning of autumn is the first solar term of autumn. Does its arrival mean the beginning of autumn? What does "basking in autumn" and "biting autumn" mean? Meteorological and agricultural experts say "autumn" for you. Jiang Xiaodong, associate professor of the school of Applied Meteorology of Nanjing University of information engineering, said that although the beginning of autumn is the first solar term of autumn, for most regions of China, the autumn in the sense of Meteorology has not yet arrived. The solar term of the beginning of autumn usually comes during the midsummer period of the "dog days", which is the third hot solar term after the heat stroke and the great heat stroke. "At the beginning of autumn, most parts of China are still in summer, and the weather is still very hot. This is also the period when typhoons are active, and there are frequent rainstorms and other disastrous weather." Jiang Xiaodong said. There is a record in the collection of the seventy-two seasons of the moon that "in autumn, things are gathered here, and things are gathered here". Yang Xingping, a researcher of the Vegetable Research Institute of the Jiangsu Academy of Agricultural Sciences, explained that "Li" in the beginning of autumn means the beginning, and "Li Lian" means the convergence, that is, the crops begin to mature at this time. "The beginning of autumn is the stage when crops such as rice, corn, soybeans and cotton bloom and bear fruit. The water demand is large, and sufficient rain can lay the foundation for high yield. Therefore, there are folk sayings such as' the beginning of autumn is drenched with rain, and gold is everywhere ',' the beginning of autumn is three rains, and the chaff rice becomes rice '." Yang Xingping said. The beginning of autumn is not only an important solar term, but also an important festival in China. There are folk customs such as "drying autumn", "biting autumn" and "sticking autumn fat" on the day of autumn. "Drying autumn" refers to a traditional agricultural custom in which farmers in some areas of China use their windowsills and roofs to dry their crops for storage. "Biting autumn" is also called "biting autumn", which means eating more watermelons on the beginning of autumn in order to relieve heat and prevent dryness. "People usually choose to eat meat on the autumn day, with the intention of 'supplementing fat with meat'." Yang Xingping explained that, from the perspective of nutrition, it is not necessary to eat meat for "sticking to autumn fat", especially for those who are overweight or suffer from hypertension and hyperlipidemia. It is suggested to eat more fermented foods such as green leafy vegetables, potatoes, steamed bread and yogurt, and eat less meat. The general population should also have a proper amount of "autumn fat" and should not overeat. (news agency)