What is La Nina phenomenon? How is La Nina phenomenon formed?

At present, global warming is also a concern for everyone. With the intensification of climate warming, some extreme weather has occurred on the earth, among which El Nino and La Nina are the most common phenomena. La Nina phenomenon is a kind of abnormal cooling of seawater in the central and eastern Pacific Ocean. It will appear alternately with El Niñ o phenomenon, mainly because when the southeast trade winds blow the heated seawater to the western Pacific Ocean, the sea level in the west will start to rise. When the sea temperature in the west rises and the air pressure drops, typhoons and tropical storms will form, which will cool the seawater in the eastern Pacific Ocean and form La Nina phenomenon. It will make Leng Xia hot in winter in our country, and it will also cause drought in the south and floods in the north, which will cause extreme weather in many areas, such as equatorial Africa, which will easily lead to drought, while there will be more rainfall in eastern Australia.

For many ordinary people, La Nina phenomenon will not have much impact on their lives. The main trouble is the large-scale cooling, and the cold air will last for a long time, so everyone will choose to wear more clothes to keep out the cold. However, La Nina phenomenon is mainly aimed at agriculture, which will have a great impact on agricultural production. This abnormal cold phenomenon will lead to the abnormal growth of many crops, which will lead to floods and reduce the production of many crops, such as corn. Moreover, the continuous low temperature will also affect the growth of crops, making photosynthesis impossible.

In order to cope with La Nina phenomenon, farmers should choose some cold-resistant varieties according to the actual situation of the land, effectively treat the seeds before sowing, cultivate strong seedlings and improve the low temperature tolerance of the seeds. However, it is also necessary to control watering, avoid lowering the temperature due to excessive watering, prepare some antifreeze products in advance, protect the seeds as much as possible, enhance the cold resistance of the seeds, and at the same time apply fertilizers scientifically, apply organic fertilizers and chemical fertilizers in advance to promote the growth of the seeds and supplement the nutrients of the seeds.

Finally, the appearance of La Nina phenomenon will definitely have a great impact on the whole world. There will be many extreme weather and many places, such as tsunamis and hurricanes.