What was the worst drought in our country s history?

The most serious drought in the history of our country should be the "Chongzhen Drought" of 1637-1643 AD.

The "Chongzhen drought" lasted for a long time (lasted about 7 years before and after) and the scope of the drought was so large that it had not been seen for hundreds of years! At that time, a total of 23 provinces (autonomous regions) in the north and south of China were hit by severe drought one after another. The main areas of drought and lack of rainfall are in North China, and Hebei, Henan, Shanxi, Shaanxi, Shandong and other regions have been dry for more than five consecutive years.

Henan, where the center of the arid area is located, has been in drought for 7 years! The drought in 1640 was the most severe. After 1640, the rainfall in the north gradually increased, and the drought changed to "flood in the north and drought in the south".

And during this time, the plague.

Epidemics and locust plagues are becoming more and more rampant.

In addition, the "runner-up" of China's drought was also in the Ming Dynasty, from 1585 to 1590 AD. The drought was widespread and varied, and the drought lasted for six years! It can be divided into two sections:

In the first stage, there was a distribution pattern of drought and flood in the north, but in the latter stage, the distribution pattern of drought and flood changed, and the northern part began to be rainy, and the arid area expanded and moved to the Yangtze River basin in the south.

and Gangnam. According to the statistics of the number of counties affected by drought in each province year by year, it can be seen that Hebei and Shanxi were the most affected by drought in the first stage, Jiangsu, Anhui and Hunan were the most affected by drought in the latter stage, and Henan was the last drought for the longest time. The drought reached extreme drought in 1589 AD, and the drying up of rivers, lakes, wells, and springs in various places between 1585 and 1590 can provide circumstantial evidence of the extent of the drought, many of which were recorded in 1589 that had not been seen in the last 50 years.

For example, Anhui "Huai River."

exhausted, the wells and springs are dry, and there is no grass in the wild"; Zhejiang, "Canal turtles, thousands of miles of red land, no spoon water in the river" and so on. The drought was also accompanied by widespread famine and plague, and the affected areas moved with the drought.

In 1628, the largest early disaster in China was in the first year of Chongzhen, and in 1628, there was a great drought in northern China: there was no grass, and locusts and insects were in the dry dry land, resulting in a shortage of grain and a large number of people starved to death.

Summary: In 1998, China suffered the largest flood in history. At that time, China had to divert floodwater to the Yangtze River basin and central regions to protect the city and the industrial towns along the Yangtze River.

The situation is particularly critical in Wuhan, the capital city of eastern Hubei province, which is bisected by the Yangtze River and vulnerable to flooding.

Flood is a natural phenomenon caused by natural factors such as heavy rainfall, rapid melting of ice and snow, storm surge, etc., or the rapid increase in water level, and is a natural disaster. Objectively speaking, the frequent occurrence of floods has its irresistible reasons, and it can be said that the "mandate of heaven" cannot be violated.

Flood Level:General flooding: return period less than 10 years.

Larger floods: return period 10-20 years.

The Great Flood: Return period 20-50 years.

Mega floods: return period of more than 50 years.

Legend has it that four or five thousand years ago, there was a catastrophic flood, the flood flooded the land, washed away the crops, the houses collapsed, people died, and a great hero Yu was achieved.

In the seventh year of the reign of Emperor Hui of the Song Dynasty, the Yellow River burst and more than 10,000 people were drowned. In the first year of the Ming Dynasty (the year of Chongzhen of the Ming Dynasty), the Yellow River overflowed, and 10,000 people in Kaifeng City were drowned. It seems that the past few years have had the greatest impact on Chinese history, and there were several floods in the 20th century, but it is relatively close to the present, and it is easy to exaggerate!

Here's what I know and I hope it helps!

As of 2019, the largest flood in China was the 1998 flood.

The floods of 1998 included the Yangtze River, Nenjiang River, Songhua River, etc. The Yangtze River flood was one of the largest basin-wide floods in the 20th century, following the two floods of 1931 and 1954. The floods of the Nenjiang and Songhua rivers were also the worst floods in the whole basin in 150 years.

According to preliminary statistics, a total of 29 provinces (autonomous regions and municipalities) across the country, including Jiangxi, Hunan, Hubei, and Heilongjiang, which were the most severely affected, suffered floods of varying degrees, with an area of 100 million mu and a disaster area of 100 million mu, a population of 100 million people, 4,150 deaths, 6.85 million collapsed houses, and direct economic losses of 166 billion yuan.

On August 5 7, 1975, a historically rare heavy rainstorm occurred in the Zhumadian area of central and southern Henan Province. The total precipitation in 3 days at the center of the storm was 1605 mm, with the maximum precipitation in 24 hours and the maximum precipitation in 1 hour.

Among them, the 1-6 hour heavy rain set a record in the history of our country. The "8 July" rainstorm caused the dams of two large reservoirs and many small and medium-sized reservoirs to collapse almost simultaneously, and the flood flooded rapidly, which may have caused the greatest loss of life and property to the Chinese people after liberation.

The torrential rain continued overnight, causing the reservoir to swell so much that the dam was eventually washed away by the river. Pouring down.

It is recorded that the maximum instantaneous flow of the reservoir at the time of the rupture was 10,000 cubic meters per second, and 100 million cubic meters of flood water poured downstream within 6 hours. After the dam burst water enters the river, it rushes downstream at an average speed of 6 meters per second, forming a water flow with a head of 5-9 meters and a width of 12-15 kilometers between the dam and the Beijing-Guangzhou Railway in a straight line of 45 kilometers.

More than 10 million people were affected and more than 20,000 people were killed. Zhumadian has become a vast ocean, and the economic loss is as high as nearly 10 billion yuan. More than 60 reservoirs have collapsed, making it the worst and most serious tragedy in the world.