Why should trees be watered with antifreeze in winter?

When a tree grows in winter, its nutrients will flow back from the branches to the roots, and the roots are an important part of the tree's life. Frozen water will form a frozen soil layer between the soil and the surface layer, which will lock in water. The specific heat capacity of water is high, which can increase the soil temperature and help keep warm.

Pouring seedlings in autumn and winter is also called antifreeze. After watering, a layer of ice is formed on the vegetation and the surface soil is frozen soil. On the one hand, keep the land moist, and the ice will melt in the next spring, so the land is full of water, which is conducive to the growth of trees.

On the other hand, ice and permafrost provide protection for the roots of plants, which is equivalent to covering plants with a "quilt", just like the principle of snow. The temperature under the frozen soil can protect the roots of seedlings from damage and grow well in the future.

Pouring antifreeze water on seedlings in winter is an important measure to ensure their safe overwintering. Watering is to use the high specific heat of water to prevent the soil temperature from dropping. The freezing of antifreeze water can form a protective layer, and the temperature of soil under the ice will not continue to cool down, thus playing the role of antifreeze.