Forest secrets (Petrov V.V.). Why do we need black stripes on a birch? What are the black stripes on a birch called?

Target: education of love for nature, native land, Motherland.

Tasks:

• develop careful attitude to nature;
• continue work on the moral education of students;
• learn to see the beautiful;
• create an opportunity for creative development students.

PROGRESS OF THE EVENT

Teacher. Many countries of the world have their own plants - symbols: Lebanon has a Lebanese cedar, Canada has a maple, Japan has a sakura, India has a lotus.
And in our forests there are many trees revered by the people, for example, mountain ash. She has long enjoyed great honor in Rus', the people composed songs about the forest beauty, endowed her with magical powers. The fisherman took with him a rowan stick - with it a storm is not terrible. It was believed that mountain ash could resist the evil machinations of sorcerers and witches, so a newborn child was put on a necklace of mountain ash, its leaves were lined in the shoes of the newlyweds. With a branch of mountain ash, the peasants lightly hit the cows so that they would have milk. The fruits and flowers of mountain ash are widely used in medicine.

1st presenter. Another tree is an aspen. “Cinderella of the Russian forest”, “talkative hostess”, “sworn tree”, “quivering” is popularly called this slender tree with greenish-gray bark and a sparse crown, which is painted in red, minium and lemon yellow colors in autumn.
According to one of the legends, there was a dispute between the trees, who brings more benefits to people. And pine, and larch, and ash, cedar, and birch vied with each other to brag about their merits, and only aspen had nothing to say, but then time itself dispelled the myths about the uselessness of aspen. For centuries, its buds and leaves have been used by folk healers.

Reader.

tree spore

There was a dispute once made
In the forest among the trees.
About the benefits for people he was -
There is one belief.
Everyone knew about their meeting:
Shrubs, blades of grass.
Showed them in all their glory
Birch, Cedar, Aspen,
Mighty Oak. vying with each other
Standing in front of each other
Boast about the benefits and yourself,
For people to choose.
The oak says: “I am king among you!
The acorn will give them vitamins,
In the bark, they will benefit. ”
Cedar remarked: “I will yield
In fragile material.
But I give oil in cones.
People knew about him!
“And I will give life-giving juice. -
Birch answered, -
There is also a healing infusion
On brunki - on earrings.
“Why are you silent, Aspen, you?”
“Shall we put an end to the dispute?”
"See how fear
Its leaves are trembling! -
The trees spoke after.
Aspen decided
That there is no use for people in it ...
"And it served her well."
Centuries go by, years go by...
Aspen is useful to us:
Infusion on the kidneys to us always
Needed in cases of illness,
Nobody can get by
Without aspen matches,
Kohl is superstitious, rely
On the stake in the fight against the vampire.
This is her great contribution.
Osinka wiped her nose!
Everyone knows about it:
Shrub and reed.

Olesya Petrovicheva, 10th grade.

Teacher. Willow, willow, spruce, pine, bird cherry, viburnum ...
Each of these trees has its own meaning in oral folk art, in poetry and painting, but most of all, the life and fate of a Russian person is connected with the beauty, about which these riddles are:
Alyonka is standing - a green scarf,
Thin camp, white sundress.
She meets spring - puts on earrings.
A green scarf is thrown over the back.
And the dress is striped:
You will know… (birch)?

So, today we will talk about birch. ( Annex 1 . slide 1).
It is known that in no country there is such an abundance of birch trees as we have in Russia.
The white-trunked tender birch has long been a symbol of Russian nature, Russia.

2nd host. Birches reach a height of 10-25 (maximum 45) m, trunk diameter 25-120 (maximum up to 150) cm.
The crown is most often ovoid in shape. Birch bark - birch bark in many species is white. This is the only breed in the world with snow-white bark. ( Annex 1 . Slides 2-7) The life expectancy of a birch is from 40 to 120 years. Flowering from 8-15 years old, in plantations - from 20-30 years old, abundant and almost annual.
Birch is photophilous, successfully grows in various climatic conditions, frost-resistant, tolerates permafrost, drought-resistant, undemanding to soil fertility and moisture, therefore it is found on stony and poor sandy soils, and on peat bogs. Birch goes far to the north and south, rises high into the mountains. One of the first it settles on pine-spruce clearings. In the spring, the birch is one of the first to wake up in the forest: there is still snow, and there are already thawed patches around it, orange catkins are swollen on the tree ... And in the fall, the birch is among the first to put on a beautiful golden dress ...
Birch is widely used in many sectors of the national economy. Parquet, plywood, household utensils and other products are made from it. Birch is resistant to gas and dust. It is of great importance for air purification, therefore it is successfully used in landscaping, in the creation of recreational areas. Birch is a favorite tree of all Russian people. Slender, curly, white-trunked, she was always compared in Rus' with a tender and beautiful bride. Poets and artists dedicated their best works to her. Birch in songs, and in riddles, and in fairy tales. She is dear to the Russian heart. ( Annex 1 . slide 8)

Reader.

I love Russian birch
Either bright or sad
In a white sarafan
With handkerchiefs in pockets
With beautiful clasps
With green earrings.
I love her elegant
Native, invisible,
That clear, seething,
That sad, crying.
I love Russian birch.
She is always with her friends
Bent low under the wind
And bends, but does not break!
"Birch" A. Prokofiev

2nd reader.

White birch
under my window
covered with snow,
Exactly silver.
On fluffy branches
snow border
Brushes blossomed
White fringe.
And there is a birch
In sleepy silence
And the snowflakes are burning
In golden fire
A dawn, lazy
Walking around,
Sprinkles branches
New silver.
S. Yesenin.

The dance "Birches" is performed by a group of girls.

Teacher. At the birches lovers met, they sang suffering. ( Annex 1 . slide 9)

Oh you white birch
There is no wind, but you are making noise.
My heart is zealous
There is no grief, but you hurt.
I loved and love
Your eyes are blue
I'm still blue.
Come to me, darling
I will show the path
On curly birches
I'll tie it with a ribbon.

1st presenter. That's how many poems and songs. And then there are mysteries:

1. Which tree has two barks instead of one? (On a birch) White and thin on top, and black and clumsy on the bottom.
Question? Why do we need white stripes on black bark? (The black stripes on the white bark are needed by the tree so that the tree can breathe through them)

2. What is the name of birch bark? (Birch bark)
Question? Why birch bark is very fond of scientists - historians. (In ancient times, when parchment was expensive, they wrote on birch bark. Birch bark letters have come down to us, after reading which, learned historians were able to learn a lot about the life of our ancestors.)

3. There is a curly tree, there are 5 lands on this tree.

1st place - sick health,
2nd land - a broken fortress,
3rd land - the sea is wiped out,
4th land - a small threat,
5th land - night light. (Broom, birch bark, broken dishes tied with birch bark, whip, torch)

Teacher. Russian birch was captured in their paintings by artists. ( Annex 1 . slide 10)
Question? Who can name these artists? (Plastov, Levitan, Kuindzhi and Savrasov).

1st presenter. Writer V.M. Garshin looking at the picture of A.K. Savrasov "The Rooks Have Arrived" ( Annex 1 . Slide 11) said: “I would call this painting “Feeling of the Motherland”. And indeed, when you look at this canvas, you experience a painfully penetrating feeling of unity with your Fatherland. And spring ringing drops, and haze, and thin birches - all this is so familiar and so dear. And this amazing picture gives rise to love for Russia, the Motherland.

Reader.

You are so beautiful, birch!
And at noon hot, and during the hours of dew,
That Russia is unthinkable without you.
And I can not imagine without your beauty.

2nd host. In front of the painting "Birch Grove" A.I. Kuindzhi ( Annex 1 . Slide 12) you experience special joy. This is what happens when you enter a birch grove on a summer day and feel the beauty of your homeland. Around are green-haired, quiet and silent birch trees, drunk with its juices.

Reader.

Rus' is mine! I love your birches!
Since those years, I grew up with them and lived,
That's why tears come
Eyes weary of tears.

1st presenter. Before us is a picture of I.I. Levitan " Birch Grove». ( Annex 1 . slide 13)
White-trunked birches covered with young bright green foliage, a thick carpet of emerald grass, the sun's rays cannot leave anyone indifferent. The picture captivates with the freshness and play of colors, the thrill of life itself. So I want to read the lines:

Reader.

But the clearing, on the hill
Under the window, among the fields
White-winged birches - a symbol
My motherland.

You are so sweet to me
To any dew
In your spaces
Silence drifts,
Birch, Russian Russia
Chamomile, kind country.

2nd host. We often talk about birch: slender, tall, curly. But in order for this tree to become such, it takes more than a dozen years. A lot of strength and perseverance needs to be applied to a small sprout in order to withstand all adversity: winter cold and summer heat, heavy rains and prolonged drought.

Have you seen how birches are born?
Just like herbs:
stem and leaf.
In the middle of the day
or at the pink dawn,
the awakened east will blaze a little, -
look -
rose from the diapers
and, like a flimsy blade of grass, stands
Russian birch tiddly child
and not at all birch in appearance.
Not everyone will notice this crumb,
into two or three barely opened leaves.
Since childhood, she will have to go badly more than once:
then - bad weather,
then the earth is hard,
then to block the sun
herbs tend...
Oh, how much in life you have to experience and endure,
to slim and curly
Yes, become a white birch!

1st presenter. But the heart shrinks more when you see a crippled tree. After all, it is alive!

Reader.

In the spring heat, the boy is angry
Pierced the birch bark with a knife -
And drops of juice, like tears, -
They flowed in a transparent stream.
The shepherd cut the bark of a birch,
Bending down, he draws sweetish juice.
Drop by drop drips into the sand
Birch blood, transparent as tears.
And now she, growing cold from flour, will wither by the next spring.
The trunk will dry up, and the branches will become numb,
And the roots will die in the depths.

Teacher. Rus', Russia from time immemorial has been a peasant country, where labor and need, sorrow and joy were combined ... Birch is truly a peasant tree. It resembles a cotton shawl, a whitewashed hut, a Russian stove, a linen shirt, and a rug. The thick birch trunks resemble the callused peasant hands that do any hard work. And young, thin, straight birch trees look like slender, with a flexible waist, with fair-haired braids, light-eyed Russian girls.
How does a peasant communicate with birch trees?

Images from the movie "Kalina Krasnaya"(Annex 2 , Appendix 3 )

2nd host. What Russian person does not love a beautiful birch? To the weary, she promises a welcome rest, to the thirsty for coolness she gives shade.
And what is birch for the workers of our school? Let's listen to their statements. (Excerpts from interviews taken by students with teachers and other school workers about birch are read out).

1st presenter. Palm trees, baobabs, coffee trees... these names are associated with distant countries. But our Motherland cannot be imagined without a birch, a white-trunked beauty. ( Annex 1 . slide 14)

Reader.

I can’t imagine Russia without a birch, -
She is so bright in Slavic,
What, perhaps, in centuries different
From a birch - all Rus' was born.

Oleg Shestinsky

Teacher. Wherever a birch grows, everywhere it brings joy and light. ( Annex 1 . Slide 15) Birch is a symbol of Russia of our Motherland. And she will be in our open spaces forever, because our people are eternal, our Russian land is eternal!

Reader.

Again about them, curly and whitish ...
And what to do here, if in Rus'
There are birch trees along all roads,
At least a day, at least a year, at least eternity wheels!

Teacher. We can talk about the white-trunked birch for a long time: this topic is inexhaustible. Hundreds of years will pass, but the birch will not lose its significance:
As in the old days, it will symbolize our immortal, glorious and mighty Motherland, whose name is RUSSIA.
Let's end our meeting with a poem by Vsevolod Rozhdestvensky and listen to his "Birch" ( Annex 1 . Slides 16-19)

Reader.

A little sun warmed the slopes
And it became warmer in the forest.
birch green braids
Hung from thin branches,
All in White dress dressed
In earrings, in lace foliage,
Meet the hot summer
She is at the edge of the forest.
Her light outfit is wonderful
There is no tree dearer to the heart,
And so many thoughtful songs
People sing about her!
He shares with her joy and tears,
And she's so good
What seems - in the noise of a birch
There is our Russian soul.

V. Rozhdestvensky

The phonogram performed by the LUBE group and Sergey Bezrukov "Birch" is turned on.

Literature:

1. Barinova I. I. Geography of Russia. Priroda, 8kl: Textbook for general educational institutions. - M: Bustard, 1997, p. 110.
2. Sitdikova F. Birch is a symbol of Russia. Scenario spring - summer holiday. G. Education of schoolchildren. No. 4, 2004.

Russia has long been called the birch land. They loved the birch, passed on beliefs about it, composed poems and songs, performed rituals and danced round dances in the spring.

Recall the song "There was a birch in the field." There are the words " white birch break it, ”which, it turns out, does not mean at all that they will break it now. They wringed a birch - bending its trunk to the ground and lovingly intertwining it with grass, the birch trunk is flexible, does not break. There used to be such a ritual.

Birch is still very much loved in Russia and is called the Russian beauty. Although it is fragile in appearance, but with great internal strength, the tree grows in North America, and in Japan, and in China, and in many other countries.

Only birch could get along in the tundra, withstanding any winds and frosts. Scientists conducted an experiment and placed birch branches in a chamber with a temperature of minus 273 degrees. After that they were taken out, and after a while the frozen branches came to life.

By the way, birches are not only white. There are about 65 more different types. For example, Dahurian birch grows in Transbaikalia, which has dark birch bark. On the Kuril Islands and in Japan, you can find "red birch", in which the wood is orange-red.

The Schmidt birch, which is also called iron birch, is amazing, with very durable wood, which is in some ways not inferior to iron and even stronger than cast iron!

There is also a birch, which is called paper for its bright white bark, which is easy to divide into thin strips. The white bark of the usual for us hanging, or as it is also called, "weeping" birch.

Birch is a favorite tree of our people, personifying the Russian soul, a tree of extraordinary kindness. It is also called the tree of life. With a birch, the esoteric teaching of trees connects two runes of the Elder Futhark - Berkan and Uruz. The birch itself has been associated with fertility and healing magic since time immemorial, birch branches have been used to endow fertility not only on the land, but also on livestock and newlyweds. Cradles for newborns were made from birch wood (practically in all European countries!)

Symbolically and magically, the birch appears as a protection against all misfortunes, both physical and spiritual. Birch is extremely useful and very favorable in healing spells, spells aimed at strengthening the crop. Birch branches (especially spring ones that have just blossomed) are rightly considered an excellent talisman that drives away sorrows and illnesses, protects children from illnesses and many other troubles). Birch is gentle and compassionate, with a very soft, affectionate and at the same time strong influence. In contrast to the oak, the birch should be addressed to sick, weakened, convalescing people. It will ease suffering, help restore lost strength, make it easier to endure illness, and speed up the healing process.

Communication with a birch is useful for people with upset nerves who are in a state of depression. This tree relieves fatigue, neutralizes Negative consequences everyday stress, helps to restore spiritual harmony. A birch growing near the house drives away nightmares. The impact of this tree is long lasting. It is better not to come to him, but to live nearby, then it will be able to heal you. Birch has always been attributed the ability to drive away evil spirits.

Why is birch bark white?

In the woody layer, which is only birch. It's called birch.

Birch bark is white, with long black stripes. Scientists have found in it a substance that is only found in birch, it is what colors birch bark in White color. It was named betulin, using the Latin name for birch. It is believed that it is he who gives the birch such resistance to frost.

In addition, betulin has an antimicrobial effect, because it contains silver ions that have this property. Therefore, walking in a birch grove is very useful, and various medicines are made from birch.

To do this, carefully, so as not to harm the tree, take the leaves, bark, sap and buds with which the birch is strewn in the spring.

“We have a birch tree in every song, a birch tree under every window,” is sung in a beautiful song by the composer A. Ponomarenko to the verses of M. Agashina. And it's hard to argue with that - this tree has really become a kind of symbol of our country. The attitude to the birch has always been special - for example, it was an important " actor” in the Semik rites, which in the Christian era coincided in time with the feast of the Holy Trinity, and even in Orthodox Church the custom has been preserved on this holiday to bring birch branches to the temple ...

The unusualness of this tree lies primarily in the color of the bark - it is not easy to find another tree with white bark! True, not all types of birch have such a feature - for example, Dahurian birch with dark bark grows in Transbaikalia, on the Kuril Islands and in Japan - red birch, which received such a name because of the red-orange color ... But in our area birches are white with black spots.

Why birches are white, explained the outstanding Russian chemist T.E. Lovits (1754-1804). He isolated a crystalline organic substance from birch bark, which was named so - betulin (from Latin name birches - betula).

Betulin is a white resinous substance that fills the cavities of birch cork tissue cells - this is what gives the birch bark a white color. After all, the content of betulin in it is huge: in different types of birches, it ranges from 14% to 44%. What gives a tree such an evolutionary acquisition?

First of all, betulin is rich in silver ions. And silver, as you know, has bactericidal properties, so betulin is a wonderful natural antiseptic that protects the tree from infections. No wonder the birch has long been known as medicinal plant- its juice was used to treat skin diseases, as well as colds. However, the matter is not limited to this: tea from birch buds is a wonderful diuretic, a tonic drink rich in vitamins was prepared from its leaves, and people living near a birch grove get sick an order of magnitude less thanks to the volatile bactericidal substances of this tree. For the same reason, people with weak lungs are advised to walk more in birch groves.

But back to betulin. It not only protects against bacteria, it is also directly related to such a property of birch as frost resistance - it was this that helped this tree take root in cold Russia right up to the tundra. The frost resistance of birch is truly amazing: in the course of laboratory experiments, birch branches restored their vitality after being in a chamber with a temperature of minus 273 degrees!

So, we figured out the white color - but what about the black spots?

They are called lentils. The point is that through upper layer birch bark - birch bark - neither water nor gases pass. This is also a protective property, but such protection could "suffocate" the tree if it did not have an "entrance gate" through which the tree could breathe. These "entrance gates" are lentils with their loose fabric.

As you can see, the fact that it was the birch that became the “Russian beauty” is quite natural: this tree is perfectly adapted to life in our harsh climate.

Birch is one of the main images folk art. In songs, fairy tales, legends, birch is a symbol of spring and the Motherland. The favorite tree was endowed with the most affectionate epithets. She was called slender, curly, thin, white, fragrant, cheerful. There are countless sayings, proverbs, riddles associated with birch:The birch is not a threat - where it stands, it makes noise there. Bela birch bark - yes black tar. Green, not a meadow, white, not snow, curly, not a head. IN folk omens birch is closely related to agriculture: A lot of juice flows from a birch - by a rainy summer. If the birch leaves before the alder, the summer will be dry, if the alder is wet in advance.

Folk wisdom has long been able to appreciate the wonderful healing properties birch. Already in the herbalists of the XVII-VII centuries. you can find an indication of how to use birch leaves and buds, birch bark, called birch bark, and Birch juice. Modern medicine has also recognized the wide healing possibilities of birch.

Of the 120 birch species found on Earth, about 40 species grow in Russia. The most common is the warty birch (drooping birch), reaching a height of 20 meters, whose age does not exceed 120 years.

Outside, the bark covers the birch with a continuous cover. Birch bark consists of many thin elastic, smooth, durable layers that are easily separated from each other, impervious to moisture and air and practically resistant to decay. Every year these layers grow, and the bark becomes thicker. By the number of thin layers, as well as by the growth rings of wood, one can determine the age of the tree. The outer layers of the warty birch are usually white in color and differ only in shades of color. The inner layers facing the bast come in various shades, from yellow to dark brown. It is these inner layers of birch bark, as the most durable, beautiful, used by craftsmen in the manufacture of products such as front side. The outer, scaly layers are called wrong side, and they have no practical value.

In addition to color, birch bark is given special attractiveness. lentils - small narrow stripes of black or brown. In the summer they are open and gas exchange is carried out through them, sometimes they are called vents. For the winter, the lentils are closed, filled with a special substance.

The best birch bark for all types of products is wide-layered, layered, even, thin with small lenticels, warm and velvety to the touch, stretchable, yellow, golden yellow or yellow-green.

Thin birch bark occurs in birches aged 20 to 40 years with a smooth, even trunk (diameter more than 150 - 200 mm), without painful thickenings, sagging, knots, cuts, pronounced crusts and mushrooms. Such a birch is more common on upland slopes, in mixed forests with moderate shade. An exception is the case when birch bark is needed for slotted thread. Then they look for young trees no older than 15-16 years old. Sometimes birch bark with a thickness of up to 2 mm or more is required for the manufacture of large products - tuesas, large boxes, etc.

On the outskirts of the fields, the edges of the forest often grow birches with thick bark. Their birch bark is with long, wide lenticels, smooth, strong, low stretch, yellow, sometimes reddish or even multi-colored: yellow on the north side, reddish on the south. This is a second-rate birch bark. It takes a lot of effort and time to process. Birch bark from birch trees growing in peat, marshy places or separately in open spaces is fragile, slightly extensible, with many small and large blackened lentils, thick, spotted, scabbed, with holes from insect passages, one-sided, with thickenings. It's better not to take it.

Birch bark harvesting times may vary depending on geographical area, places of birch growth, time of onset and nature of spring. Birch bark is usually firmly connected to the bast. In late spring, when the snow melts during the juicing period, birch bark can be removed in small quantities using a specially made wooden tool that resembles a chisel. At this time, a coating of a dark brown bast layer is observed on the inner layer of birch bark. Such birch bark is often used in products with decoration elements by scraping the bast layer.

In the Republic of Komi in the area of ​​Syktyvkar, the most favorable terms for harvesting birch bark are observed from June 20 to July 10. During this period, birch sap is no longer available. The leaf of the tree is gaining strength, becoming dark green. In stable hot weather, after a cut of birch bark on a tree trunk, it comes off without effort.

During this period, it is necessary to visit the forest more often to determine the descent of birch bark. At the end of the descent period, the birch bark dries to the trunk and the harvesting becomes practically impossible.

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Why is the beautiful white canvas of the birch trunk pierced with black stripes? Everything is very simple. The fact is that the birch bark is very dense, the cells of the bark are so close to each other that they form a dense, almost impenetrable layer, with such a structure of the bark, air simply could not flow to the living cells of the trunk. This is where the black stripes on the birch trunk come to the rescue - this lentils. Below them is a looser structure, the intercellular distance in which is much greater. Air freely penetrates to the living cells of the trunk, providing the birch with the process of respiration.

The white bark of birch trees is the result of the content in the tree of a rare white pigment called betulin. The more of this pigment is contained in the bark, the lighter it looks. It is not yet completely clear why birches need betulin. It has many interesting functions, including fungicidal. So, most likely, betulin is formed in the bark of birches to protect the bark from fungi, and these trees get the white color as a free supplement.

Only a small number of plants have betulin besides birches, but this does not mean that other plants have not invented other ways to take care of themselves. Indeed, in addition to betulin, plants form a huge range of protective substances that act on fungi, protozoa, and bacteria, for example, the famous phytoncides, which are rich in onions and garlic. Poisons that protect plants from herbivores are also common, such as castor bean ricin and atropine belenes. In general, plants have invented many different ways fend for themselves, and birch betulin is only one of them.

To others interesting features betulin is its ability to trigger cell apoptosis in some types of tumors, reduce the size of atherosclerotic plaques, and promote weight loss in people with obesity. Hundreds scientific works. So the white color of birches is not the only interesting consequence of the attempts of these trees to protect themselves from fungal infections.

By the way, not all birches have a white trunk. For example, the Schmidt birch and the Dahurian birch, which grow in our Far East, have a dark trunk. And the cherry birch, which comes from North America, - cherry red.

But for a tree, such a “shell” is not only beneficial, but can also harm, simply strangling living plant. The core of the birch trunk needs to breathe. This is where the black bars come to the rescue. These are the so-called lentils"- areas of the bark with a looser air- and moisture-permeable structure. The older the tree gets, the more noticeable the "lentils" become.

Through them, the tree breathes, as through the pores. In old birches, the bark is often dotted with deep black furrows, like wrinkles on a human face, and in young trees, the bark is almost all white, soft and silky, like the skin of a baby. In nature, there is nothing “just like that”, even the color of the birch bark is important for the plant.

1. On our planet there are about a hundred species of birches. In Russia, this tree species is one of the most common (see. Interesting Facts about forests).
2. Birch buds and leaves are actively used in medicine as an antipyretic, bactericidal, diuretic and wound healing agent.
3. The image of a birch is widespread in the culture of the Slavs, Finno-Ugric peoples, Scandinavians and some other peoples.
4. The word "birch" in the Proto-Slavic language is derived from the verb "whiten, brighten."
5. Most birches grow up to 30-45 meters with a girth of the trunk up to 150 centimeters. There are also shrubs in this genus, barely rising from the ground.
6. Birch seeds are extremely light - 5000 seeds weigh about 1 gram, so the wind can carry them a great distance from the mother tree.
7. Most birches tolerate permafrost well and grow far beyond the Arctic Circle.
8. Birches can grow in almost any soil - wet, swampy, dry and rocky.
9. The average life expectancy of birch trees is about 100 years, although some trees live up to 400 years or more.
10. The stag beetle lives in birch wood - the largest beetle in Europe (see interesting facts about insects).
11. Some types of mushrooms grow exclusively under birches - these are boletus, birch White mushroom, black breast and pink wave, as well as some varieties of russula.
12. Orthodox Christians often decorate churches and houses with birch branches on Holy Trinity Day.
13. Birch leaves and alum make yellow wool dye.
14. In the past, birch torches were often used to light peasant huts, because this wood burns brightly, and at the same time almost does not smoke.
15. Birch firewood is considered the best.
16. Birch brooms are not only an obligatory attribute of Russian baths, but also feed for livestock, which is harvested for the winter.
17. It is not recommended to build any buildings from birch logs, because the wood quickly begins to rot.
18. Birch wood is used to make skis, toys, plywood and butts for firearms. Caps (growths that form on different parts birches) thanks to beautiful drawing wood is used to cut snuff boxes, cigarette cases, caskets and decorative pieces of furniture.
19. Birch bark (birch bark) is an excellent material for weaving baskets, bast shoes, baskets and boxes.
20. In ancient times, birch bark was used as paper - it is not afraid of moisture, thanks to which many records of the 11th-15th centuries have survived to this day.
21. The peoples inhabiting Far East and the North, make boats out of birch bark and build their own dwellings (plagues).
22. Birch sap, the collection of which begins after the first spring thaw, is used to prepare a variety of drinks. One large tree can produce more than a bucket of juice per day without harm to itself.
23. According to ancient folk beliefs, the smell of birch helps to protect oneself from the evil eye and saves from melancholy. It was also believed that birch sap, collected on certain days of March and April, was able to purify the blood.
24. When birch leaves decompose, substances are formed that stimulate the growth of other plants.