Beauty of the festival

Welcome to the third solar terms in autumn on September 7: Bai Lu. The arrival of this solar terms means that the time of Meng Qiu was over and the autumn season began. Since the beginning of Bai Lu, the weather gradually turns from hot to cold. At this time, autumn crops in most parts of China began to harvest.

Regarding Bai Lu, the ancient book "Monthly Ling Seventy -two Emperor Collection" has the record of "August ... the yin is getting heavier, the dew and the white and white". At this time, the water vapor near the ground encountered cold condensation into water droplets at night. Bai Lu is a solar term that reflects changes in temperature. Jiang Xiaodong, an associate professor of the School of Applied Meteorological, Nanjing University of Information Technology, explained that the start of the solar terms from Bailu, the winter wind power was strengthened, and the cold air turned into an attack, bringing a certain range of cooling. The summer heat is over, the weather turns cool, and the high temperature in the south is also significantly reduced.

In the season of white dew, the temperature difference between day and night gradually widen. Jiang Xiaodong introduced that during this period, the direct point of the sun continued to move south, and the sunshine time and strength were weakened. At the same time, the cold air invaded, the night was sunny, the ground was cooling fast, the temperature dropped rapidly, and the temperature difference between day and night increased. Therefore, people will feel the feeling of "Bai Lu Qiu Qiu Qiu Ye, cool overnight and one night".

Bailu solar terms are often related to harvest. Yang Yiyang, an associate researcher at the Jiangsu Academy of Agricultural Sciences, introduced that after the hard work of spring and summer, northern my country has ushered in the harvest season for melon fruits and mature crops in the season of Bailu.

Due to the decline in temperature, the diet of the white dew period pays attention to "replenishing", that is, to replenish energy through diet to prepare for the cold winter. "Common 'supplemental" foods include persimmon, longan, sweet potatoes, etc. Residents in different regions also have unique dietary customs in different regions. , Slightly sweet, known as 'Bailu rice wine'. "Yang Yiyang said.

Coordinating planning: Liu Xinhui, Liu Zhaoquan

Reporter: Qiu Bingqing, Wang Yan

Poster production: Sun Wanhui

Xinhua News Agency's domestic and Jiangsu branch joint production

Produced

[Editor in charge: Zhang Yongsu]

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