What are the benefits of heavy snow? What to eat to keep warm in heavy snow

Snow is a substance with a good heat preservation effect. It can protect plants from frostbite in the cold winter. The melting snow water can provide a good water supply for vegetation in the spring of the following year. The power of nature is definitely not a coincidence. I believe that when winter comes, many friends are looking forward to a romantic snow! Today we will take a science tour! Let's see what are the benefits of heavy snow!

Contents of this article

1. What are the benefits of heavy snow?

2. What to eat to keep warm in heavy snow

3. Why does it snow in winter?

What are the benefits of heavy snow?

The benefit of snow is that it is conducive to the growth and development of crops. Snow is conducive to the growth and development of crops. Snow is a substance with a good heat preservation effect. It can protect plants from frostbite in the cold winter. The melting snow water in the spring of the following year can provide a good water supply for vegetation. The power of nature is definitely not a coincidence. Because snow has a poor thermal conductivity, a layer of snow covering the soil surface can reduce the outward transfer of soil heat and block the invasion of cold air on the snow surface. Therefore, crops protected by snow can safely spend the winter. The snowfall level standard usually refers to the standard for continuous snowfall within a specified time period or the snowfall converted into rainfall as the level division standard. This standard generally adopts two standards of duration of 12 hours and 24 hours.

What to eat to keep warm in heavy snow

People's fear of cold is related to the body's low intake of certain minerals. For example, the amount of calcium in the human body can directly affect the elasticity and excitability of the myocardium, blood vessels and muscles; iron deficiency in the blood is an important cause of iron deficiency anemia, which is often manifested as low heat production and low body temperature. Therefore, supplementing foods rich in calcium and iron can improve the body's ability to resist cold. Calcium-containing foods mainly include milk, soy products, kelp, seaweed, shells, oysters, sardines, shrimps, etc.; iron-containing foods mainly include animal blood, egg yolks, pig liver, soybeans, sesame seeds, black fungus and red dates, etc.

First of all, eat more staple foods and appropriately choose foods that produce high heat and are warm in nature, mainly dog ​​meat, mutton, beef, chicken, shrimp, longan, red dates, etc. These foods are rich in protein and fat, produce a lot of heat, and are especially beneficial for those with weak constitution and insufficient yang.

In order to balance the Yin and Yang and prevent internal heat, it is also advisable to eat turtles, tortoises, ducks, geese, lotus roots, fungus and other Yin-protecting foods in winter, especially for the middle-aged and elderly people who are weak and sick and have lost their essence and energy, so as to achieve the balance of Yin and Yang. In addition, you should also supplement your diet with fruits every day, such as grapefruits, apples and other fruits that promote the production of body fluids, which are good for resisting the dryness in winter.

Furthermore, we must ensure the supply of vitamins, especially increasing the intake of vitamin A and vitamin C, which can enhance cold resistance and adaptability to cold and have a good protective effect on blood vessels. Vitamin C mainly comes from fresh fruits and vegetables, and vitamin A mainly comes from animal liver, carrots, dark green vegetables, etc.

Sesame and sunflower seeds can provide the necessary elements for the human body to withstand cold. Cold weather increases the demand for methionine in the body. Methionine can provide a series of methyl groups necessary for adapting to cold weather through transfer. Therefore, in winter, we should consume more foods rich in methionine, such as sesame, sunflower seeds, dairy products, yeast, leafy vegetables, etc.

Spicy food can dispel cold. Chili peppers contain capsaicin, ginger contains aromatic volatile oils, and pepper contains piperine. They are all spicy foods. Eating more of them in winter can not only increase appetite, but also promote blood circulation and improve the ability to resist cold.

Why does it snow in winter?

It snows in winter because small ice crystals fall from the air. The moisture on the ground will continue to evaporate and rise, and then form ice crystals and snowflakes. When the weight can no longer be held by the airflow, it will fall to form snowflakes. The formation of snowflakes must meet two conditions: water vapor saturation and the presence of condensation nuclei. In addition, the places where it snows in winter are mainly medium and high latitudes.

1. Ice crystals fall

It snows in winter because small ice crystals fall from the sky. The moisture on the ground will continue to evaporate under any temperature conditions. After rising into the air, ice crystals and snowflakes will gradually accumulate in the clouds. When the weight of the clouds is greater than the lifting force of the airflow, the ice crystals and snowflakes will fall as snow.

2. Formation conditions

For snow to fall in winter, two conditions must be met: water vapor saturation and the presence of condensation nuclei. When the water vapor in the air reaches saturation, the excess water vapor turns into water droplets or ice crystals. In addition, the condensation nuclei in the air can reduce the saturation requirements for water vapor, which is conducive to the falling of rain and snow.

3. Snowy areas

In winter, it usually snows in mid-high latitudes and high latitudes, approximately north of the Tropic of Cancer or south of the Tropic of Capricorn. The temperature in this area is relatively low, which meets the conditions for the landing of snowflakes. In addition, it also snows in plateaus and mountains with an altitude of more than 2,000 meters.