Natural disasters! 400 million people in the Yangtze river basin are suffering from rare high temperature and drought disasters! Why is the drought so severe this year?

According to domestic news media reports, about 400 million people in the Yangtze River basin are suffering from a rare epidemic of high temperature and drought. The main reasons for this year's drought are as follows:

Extreme high temperatures in many areas will last for a long time. The extreme high temperatures in China, Chongqing and Chengdu have lasted for a month. Even at the end of the dog days, the highest temperature can still reach about 44 degrees Celsius. Walking on the streets of Chongqing is like walking in a steaming room. The water loss of human body is very serious. The highest temperature in Chengdu can reach about 42 degrees Celsius, and the lowest temperature can reach about 3 1 degrees Celsius, and it lasts for a long time. The extreme high temperature for a long time has caused more than 50 rivers in Chongqing to be cut off, and 24 reservoirs have dried up to varying degrees, resulting in such a severe drought this year. If the extreme high temperature lasts for about half a month, the phenomenon of water cut-off in Chongqing will be more serious.

Agricultural irrigation in many areas needs a lot of water, which accelerates the drought. As a crop growing in extreme high temperature environment, there have been many crises. Some farmers habitually pump the water from the river into the farmland for irrigation when irrigating grain, but after irrigation, it will dry up in a week or so because of extremely hot weather, so they can only ensure the normal growth of crops through high-frequency irrigation. On the one hand, the hot weather is evaporating the water in the river, on the other hand, farmers have washed all the water in the river into farmland, which leads to more and more serious drought.

In addition to micro-reasons, there are also macro-factors, such as extreme weather anomalies caused by global warming, extreme high temperatures in some parts of China, extreme heavy rainfall in some parts of foreign countries, and melting glaciers in the Antarctic and Antarctic. These are the main reasons for the destruction of the natural environment. If humans don't protect it, droughts or floods will become more and more serious in the future.