The guiding significance of weather to life, production and other fields

Weather refers to weather changes such as cold and hot, sunny and rainy, wind and rain, cloud cover, etc. In a short time in an area. It is not only one of the elements of human living environment, but also an important resource for human production and life. It has a direct effect on human production and life, and agriculture, industry, transportation and national defense are inevitably disturbed by the weather.

Agriculture is most closely related to weather. The growth of crops needs light, heat, water and other conditions, and the reproduction and growth of livestock also need suitable climatic conditions. The developed agricultural areas in the world are all places with suitable temperature and water quantity. The weather directly affects the harvest of crops and the development of animal husbandry. For example, in the middle and lower reaches of the Yangtze River in China, timely and moderate plum rains in early summer are very beneficial to early rice growth and middle rice planting; Australia's climatic conditions are suitable for the growth of pasture, and animal husbandry is particularly developed. However, floods, droughts, hail and cold waves often cause huge losses to agricultural production and sometimes cause social unrest.

This was particularly evident in ancient times. At the end of the Ming Dynasty, Shaanxi suffered from drought for years, and the hungry people rebelled in despair, which accelerated the collapse of the Ming Dynasty. In recent years, due to the long-term drought in some parts of Africa, crops have failed and they are starving, which has become a worldwide problem.

Generally speaking, the influence of weather on industry is not as great as that on agriculture, but it has obvious influence on raw material food industry and cotton textile industry from agricultural products. Bad weather will hinder traffic, postal services and telecommunications. Dense fog, snowstorm, etc. It makes it impossible for planes to fly normally and trains, cars and ships to run. The emerging aerospace industry is also affected by the climate. Part of the reason why the American space shuttle Challenger exploded in the air was the low temperature at that time.

The booming tourism industry in recent years obviously depends on the weather. On a sunny and breezy spring and autumn day, people jostle each other beside the West Lake in Hangzhou and Suzhou Gardens. It is very hot in summer. Lushan, Huangshan, Dalian and Qingdao are all tourists. This is how the weather affects tourists with infinite magic.

Weather is also of great significance to the victory or defeat of war, and sometimes even affects the evolution of history. In 208 AD, Battle of Red Cliffs, Sun Quan and Liu Bei launched a fire attack with the help of the southeast wind, and Cao Ying was "destroyed in smoke", and hundreds of thousands of elite soldiers were defeated, thus establishing the situation of tripartite confrontation among the three countries. 18 15 In the famous Battle of Waterloo, heavy rain and muddy roads hindered the French army's action, which led to the defeat of the French army due to lack of assistance. The fiasco at the Battle of Waterloo ended Napoleon's rampage through Europe. Modern warfare is also affected by the weather.

In addition, the weather has a great influence on sports and people's daily life. A sudden heavy rain will often make the weak teams accustomed to water warfare beat the strong teams on the football field, and will also make the straight suits and fashionable hairstyles suddenly lose their elegance.

In a word, the weather has a great influence on human beings, and it plays a magical role all the time. Today, people have mastered the law of weather changes, and can make quite accurate forecasts, seek advantages and avoid disadvantages, and reduce losses caused by bad weather. We should further study the weather, use it and transform it to make it more conducive to human activities.