Hibernate trees and plants in winter
Tree & Nature - nature
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Trees also prepare for winter
(02/12/2015) Not only animals hibernate or hibernate. Trees also go into “economy mode” and feed on the reserves that they had previously created. The winter is sometimes cold and long. How good that nature is prepared and knows how to survive this inhospitable season. There are some parallels between flora and fauna. Even if trees are apparently inactive, they - like animals - have developed amazing mechanisms to survive the winter.
You can also do without leaves
While the foliage with its leaf green (chlorophyll) uses the sun to produce nutrients in the warm season, the leaves become a burden in winter. The hours of sunshine are significantly fewer, so the leaves could not work as efficiently. In addition, as living organs of the tree, they would also have to be supplied with water and minerals, which does not contradict the tree's "economy mode" in winter
comes. The tree therefore simply dispenses with its foliage, which also offers additional attack surfaces for snow and ice and thus sensitively increases the weight on the branches. On the ground, however, the foliage does a valuable job because it covers the top layer of the earth, from which not only the tree benefits, but also small organisms and plants that overwinter in the ground.
Supply for the winter
Before the leaves are thrown off in autumn, the tree removes as many useful substances as possible from them. During their active period, the leaves produce so many nutrients that they can also be stored and thus serve as a supply for the winter. The storage of sugar, for example, not only ensures the supply in the cold season. In connection with proteins, the sugar also serves as frost protection inside, while the bark forms the protective "skin" on the outside.
Annual rings show the cycle of the seasons
The sequence of the year can be clearly seen from the annual rings. The tree grows most vigorously in spring (light-colored wood). During the year, growth eventually subsides (dark wood). When temperatures drop and the days get shorter, the tree temporarily stops growing. In spring the trees suck in water again and you can listen to the spring rustling in the trunk with the help of a stethoscope and not only watch the tree grow, but also listen.
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