Traditional Culture Encyclopedia - Weather inquiry - On the specific periods and manifestations of several temperature rises and falls in history

On the specific periods and manifestations of several temperature rises and falls in history

Since 4,000 years, the climate in China has experienced several fluctuations. Yin-Shang period was the last period of Holocene warm and wet period, and the general climate trend was cold and dry after that.

1. The climate in the Western Zhou Dynasty is cold.

In the early Western Zhou Dynasty in the 10 century BC, the global climate showed a downward trend during about 100-200 years, which was the first cold period after the Holocene warm and humid climate ended. Neither pre-Qin documents nor archaeological discoveries can prove that rhinoceros is active again in the Huang-Huai-Hai Plain. Using the image of "elephant" as the decoration of bronzes was only popular in the late Shang Dynasty and the early Western Zhou Dynasty.

2. Spring and Autumn Climate Warming Period

In the 8th-3rd century BC, during the Spring and Autumn Period and the Warring States Period, the climate gradually became warmer.

3. Climate cooling period in Qin and Han Dynasties

From the Warring States Period to the mid-Western Han Dynasty, the cold climate began to invade China.

The current 24 solar terms were shaped in the Qin and Han Dynasties and first appeared in Huainanzi. The Great Wall is a symbol of the transformation of agricultural production mode. During this period, corresponding human activities appeared on the earth: Xiongnu invaded the south and moved to the west, and Asian and European nationalities migrated greatly.

4. The warm climate from the middle of the Western Han Dynasty to the end of the Eastern Han Dynasty.

In the middle of the Western Han Dynasty, the global temperature suddenly warmed up, and there were two noteworthy phenomena:

(1) A large-scale transgression occurred in Bohai Bay in the northern part of North China Plain, which led to the interruption of local cultural relics in coastal areas.

(2) Since the mid-Western Han Dynasty, the middle and lower reaches of the Yellow River have been flooded many times. During the period of Emperor Wu of the Han Dynasty and Wang Mang, there were two major diversions of the Yellow River.

5. Cold climate in Wei, Jin, Southern and Northern Dynasties

At the end of the Eastern Han Dynasty, the climate in China showed signs of changing to cold. The historical phenomenon is that the northern nomads invaded the farming areas in the Central Plains in turn, which led to the wave of population migration to the south and the great ethnic integration in the history of China. Emperor Xiaowen of Wei moved the capital to Luoyang and Emperor Xiaowen's reform.

6. Climate warming period in early Tang Dynasty

In the 7th and 8th centuries, the climate of the Yellow River Basin became warmer.

According to historical records, there are no sudden extreme cold events, frequent cold weather and obvious sudden warming of the climate.

7. The cold period from the middle Tang Dynasty to the Five Dynasties.

At the beginning of the Northern Song Dynasty, the Sizhu supervisor set up in Bo 'ai area of Henan Province in the Tang Dynasty was abolished, which was related to the temperature drop in the Five Dynasties and the reduction of bamboo forest scale.

The corresponding historical events in this period are mainly the many times that the Khitans went south in the late Five Dynasties.

8. Warm climate period from the Northern Song Dynasty to the mid-Yuan Dynasty

In the mid-Northern Song Dynasty, the climate changed to a warm direction, which was manifested by frequent records of winter warmth. The warming phenomenon of Kaifeng, the capital city, was recorded in the data of the Northern Song Dynasty, and the phenology was recorded in the Collection of Song People. Therefore, climate change was mainly inferred from phenology in this period.

9. The Cold Period from the Late Yuan Dynasty to the Qing Dynasty

From the beginning of 1 4th century, the whole earth's climate entered a cold stage, and its cold degree was second only to the last Great Ice Age110,000 years ago. Therefore, people call this recent cold climate the Little Ice Age. The most notable feature is the large increase of cold events.

I study history, I hope I can help you!