Bailu solar terms | Lu Baiqiu cool, wait for a good autumn!

At 23:32 on September 7, Beijing time

Will usher in the solar terms with the largest temperature difference between day and night

White dew

release

righteous

Bai Lu is the fifteenth solar terms in the twenty -four solar terms, and the third solar term in autumn. The ancients were equipped with five elements, autumn, gold, gold and white, and described autumn dew in white, hence the name "Bai Lu". At this time, the temperature dropped rapidly, the rain began, the sunshine decreased, and the season was converted from summer to autumn.

What are the climate characteristics of Bailu season?

What are the traditional customs?

Welcome to watch

"Talk to the twenty -four solar terms"

Bai Lu of a series of popular science videos

gas

Hop

Bai Lu is hot and cool watershed

After entering Bailu solar terms

Summer wind is gradually replaced by winter wind

Cold air go south to gradually become frequent

There is a saying "Bai Lu Qiu Qiu is in the night, cool overnight and one night"

Start with Bailu solar term

Divide the standards of the four seasons according to the climate

All localities have begun to enter autumn

At this time, the temperature difference between day and night in all parts of China can reach 8 ℃ -16 ℃

So Bai Lu is a solar term with a large temperature difference in the year

Why is Bai Lu the most temperature difference between day and night?

The answer is related to "cloud". At this time, the subtropical high -pressure retreat to the Western Pacific Ocean, coupled with the high pressure from the mainland, it is difficult for the water vapor in the south to be transported north, and the clouds condensed by the sky are also reduced.

The decrease in cloud volume will cause two effects. One is that the cloud layer is like a quilt covering a quilt. The lack of the heat preservation effect of the cloud layer is obvious at night; the second is that the "resistance" that the sun directly reaches the ground during the day is also relatively reduced, although the sun is direct to the ground on the ground The location moved south, and the light time was shorter than the summer, but under the effect of the sunlight during the sunlight during the day, people still feel like summer. In this way, the temperature difference between day and night is opened.

Object

Wait

Bai Lu has three waiting: "One waiting for Hongyan; the two waiting birds return;

Bai Lu's solar terms, the summer heat faded, the autumn is high, the scent of dandan, and the migratory birds such as Hongyan and Swallow began to fly south to avoid the cold, and various birds began to store food that had been stored in winter.

"Hongyanlai, the mysterious bird returns." After Bai Lu, the most sensitive migratory bird migrated to the climate. Hongyan began to fly from the north to the south, and the mysterious birds in the south also returned to the north, and all kinds of birds began to store Yuhuang. There is a cloud of folk proverbs: "Bai Lu Qiufeng Ye, Yannan flying and a line", "Lili knows the sleeping people, and the sunflowers laughed at the face. Therefore, migratory birds like big geese are regarded as a symbol of autumn.

Bai Lu Shi Yan Yanlai

Farm

thing

After Bailu's solar terms, the cold air became more active, often with low temperature weather, affecting late rice pumping flowers. Huanghuai, Jianghuai, and South China should seize the atfilled time with high temperatures. During the Bai Lu period, South China Rizhao was about half of the summer heat, and the rainfall had the characteristics of small intensity, rainy days, and often continuously. In this regard, we must take corresponding agricultural technical measures to reduce or avoid the dangers of autumn rain, while paying attention to preventing and treating diseases such as rice plastic and fungal diseases.

Tomato in Tori County, Xinjiang gets a bumper harvest: Guo Dapeng Wang Xudong

keep

pregnancy

Entering autumn, the temperature gradually decreases. Therefore, most of the customs of Bailu's season are related to "supplementing". By eating some foods to supplement physical energy and prepare for the cold winter. However, in this season, in order to prevent autumn dryness, simple and practical medicated diet and dietary therapy are enough. There is no need to deliberately make up for it.

By Bai Lu, the old Nan Kyoto who loves to drink tea is very popular with "Bai Lu Tea". At this time, the tea trees have been hot in summer, and Bai Lu is an excellent period of growth before and after. Bailu tea is neither as tender as spring tea, without brewing, nor as dry and bitter as Xia Tea, but has a unique sweet and fragrant fragrance, which is particularly loved by old tea guests.

In the old days, the rural people in the Jiangsu and Zhejiang area made Bai Lu when they arrived every year.The temperature of the wine contains heat and slightly sweet, so it is called "white dew rice wine".Bai Luzhi

Cool breeze

Morning and evening temperature difference

Remember to add clothes!

Produced by China Meteorological Administration Xuanke Center (China Meteorological News Agency)

Source: Baidu Encyclopedia, China Meteorological Popularization Network

Image source: network

Video production: Jiangsu Meteorological Service Center X China Meteorological News Agency

Edit: Yang Shenglan

Review: Duan Haoshu

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