How do plants survive the winter?

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Method 1. Take off the "leaves" on your body

Method 2. Regulate body moisture

Method 3. Other ways

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In winter, the cold wind blows outside, the cat stretches in the sunshine on the indoor window sill, the dog naps on the carpet, friends from the south quietly put on long johns, and friends from the north have long put on down jackets . How do thousands of plants in nature survive in the cold winter? Here we will introduce to you the magical ways that plants survive the winter.

Method 1. Take off the "leaves" on your body

Method 1. Take off the "leaves" on the body

In winter, it is more common for us to see bare plants standing there. That is because the drop in temperature causes changes in their bodies, which causes them to start to fall off. leaf. When the weather gets colder and the days shorten, it begins to transfer nutrients from the leaves to the branches, causing the leaves to begin to fall and the plant to enter a dormant period. After entering winter, plants "take out" previously stored nutrients and decompose these nutrients under the action of enzymes. The purpose is to increase the concentration of plant cell fluid so that they will not be easily frozen.

Method 2. Regulate body moisture

< p>Plants, like us humans, undergo physiological changes all the time. In winter, plants will reduce energy consumption and enhance cold resistance. Take coniferous trees as an example. They can survive at minus 40 degrees Celsius, which shows their extremely strong survivability. In winter, we find that many outdoor plants will wither, but don’t mistakenly think that the plants are dead. This is their way of protecting themselves from frostbite in winter. The wilting of plants is a manifestation of reduced water absorption and reduced water content in the body.

Method 3. Other methods

1. The way pine and cypress spend the winter looks very advanced. Their leaf structure is relatively unique. In order to resist the cold of winter, it mainly achieves the goal by avoiding the loss of moisture. The epidermal cell walls of plant leaves are very thick. When the weather is cold, the cells in the lower epidermis close. At the same time, root activity decreases, reducing the water content in the body.

2. Some plants have their own tips for preserving heat. Most annual plants store their energy in their seeds, and the seeds continue to multiply after spreading. For perennial plants, they will store nutrients in their root systems before winter arrives, accumulating strength for growth in the coming year.

3. There are also some plants that neither store these necessary nutrients in their seeds nor in their roots, but reduce free water to withstand severe cold, such as wheat, rapeseed, etc. in winter. The body stores a lot of nutrients.

Method 2. Regulate body moisture

Method 3. Other ways

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