Presentation on the topic of winter in the world of plants. “amazing things in the natural world in winter” “changes in plant life in winter” was carried out by a group of “researchers” - presentation
...Neither dead nor alive... Bewitched by the enchantress in winter, the forest stands - And under the snow fringe; Motionless, mute. He shines with a wonderful life. And he stands bewitched, - Neither dead nor alive, - Enchanted by a magical dream. All wrapped up, all bound in a light downy chain... F. I. TYUTCHEV
Deciduous plants Many plants have a rest period, mainly in winter. Deciduous trees, such as birch, maple, aspen, etc., shed their leaves in the fall, because at this time there is not enough sunlight for the formation of nutrients in the leaves.
Winter flowers Thus, it remains to come to the conclusion that our spring plants have a remarkable ability to develop under the snow in winter. Going under the snow in the fall with resting underground organs - rhizomes and tubers, they emerge from it with already developed stems, leaves and often even colored buds. In the forest, during a snowfall, young parts of spring plants break through the snow.
Winter preparations medicinal plants Some plants gain maximum healing power precisely in winter. That's what we'll talk about. Namely, we will talk about pine and birch buds and alder cones. about pine and birch buds and alder cones.
The most durable plants
In order to enjoy their beauty in subsequent seasons, the changes in the life of plants in winter, we must provide them with adequate protection from low temperatures and also - especially in the case of evergreens - from winter winds. Some species (eg chestnuts, magnolias), winter coverings will only be needed in the first few years after planting, like adults, to gain full frost resistance. However, other species, such as those common in our gardens, rhododendrons, hydrangeas, garden, BUDGET David, require winter security every year, regardless of age.
Changes in plant life in winter.
Let's remember that our plants are only good if it is given them the right path - at the appropriate time and with the appropriate materials, otherwise we may harm them.life of plants and animals in winter, how to protect
When is the time to cover plants in winter?
We should not rush to secure plants for the winter. Planting too early will mean that the plants do not have time to go into dormancy before the upcoming winter frost. Do not be afraid of night frosts - while the temperature during the day is not positive at night the temperature only drops the plants without damaging them. Coverage can only be assumed, the life of plants and animals in winter, when the first light frosts arrive (about -5 C) - when upper layer the soil freezes. Mostly this is necessary in early December, but sometimes when winter frosts come only after the new year, so we just have to keep an eye on the weather forecast. Vigilance should also be maintained when warming the plants - if extremely severe frosts are declared, their time should cover the plants, especially those more sensitive, with an additional layer of insulation.
what changes occurred in plant life in winter
How to pack plants for the winter?
The materials provided to the plant for the winter should first of all be airy, breathable, so that the plants do not rot. They should not absorb a lot of water and not be too heavy. Most often to protect the roots of plants used: bark, greenery (or branches of coniferous trees - preferably Douglas fir or Douglas fir, because their needles last a long time), what changes have occurred in the life of plants in winter, tree leaves (try to avoid using leaves infected with diseases, and also leaves with high tannin content - like. Walnut or oak), sawdust, as well as ordinary garden soil and peat. If you use lightweight material such as bark, peat or leaves, it should also cover the branches of coniferous trees so that snowless winters do not blow away. To cover the above-ground parts of the plant, straw mats, jute, white Agrowłóknina or corrugated paper. In order to fence the bushes, we could also use ordinary cardboard paper - we place it in the plant, and fill the space around with insulating material, even leaves. Isolation of plants in winter should be monitored with film, since it does not allow air to pass through, and heats up in the sun - for such screening the substance will fill.plant life in winter presentation
How to protect plants in winter?
Whether it is a cover crop for the winter depends on several factors - primarily on its genre, such as the degree of frost resistance, the plant's winter life presentation, and whether it is a type of evergreen for winter leaves. Otherwise we provided frost perennial plants and shrubs of various columnar habits. It is also clear that species more sensitive to frost will require more careful cover.plant life in winter at the dacha
The most widely used method of protecting plants from frost is piling, involving about a 30-40 inch mound of insulating material around the base of the plant. Such a layer will protect the roots from frost - even if there is some above-ground freezing, the plant will affect the roots or buds embedded low to the ground. This is sufficient protection for species of shrubs where above-ground growth is already severely limited. in early spring, caring for plants in winter, for example. Roses and big discounts, Buddleia Davida, plant life in winter in the country, tree hydrangea or bouquets. In the same way, we can protect most vineyards and more sensitive trees and perennials. In the case of discount perennials, simply put on their surface a few centimeters thick layer of insulating material, for example.caring for plants in winter,
Winter protection of evergreen plants not only to protect them from low temperatures, but also from the desiccant action of the sun and wind (under their influence, the leaves lose water, the plants are under snow in winter, but the plant cannot be obtained from frozen soil to replenish reserves). For evergreen species, it is quite enough to remove frost protection; a screen will protect the plants from wind and sun. - We can do this, for example, with mats, plants in winter under the snow, or use special shader fabrics (available on the market in white and green). More sensitive species (rhododendrons, holly, cherry laurel) should cover the aboveground part. This covering cannot be too hard, since insufficient ventilation of the plants under the cover often leads to the development of gray mold on the needles or leaves. Thermal insulation material should not touch the plants, so it is better to unfasten it on supports (usually stakes, as plants overwinter in winter, driven into the ground around the plants), creating a kind of tent around the plant. Such a shield costs pressure on the ground, for example. There are stones at the bottom and there is no wind inside the tent. For evergreens, an adequate supply of water is stored in the tissues, it is important to water deeply as plants overwinter in the winter before they are covered for the winter, remember to also water them during the winter thaw.
How do plants overwinter in winter?
Many varieties of columnar habit require protection from such deformations due to snow deposition, or the action of strong winter winds. To do this, simply tie a rope to the plant along its entire length. The tying you do is not too strong so that the ropes do not damage or deform the branches, but strong enough to withstand the pressure of wind and snow. For this purpose we can also use a shade of chain-link or white a.
covering material for plants for the winter.
Before the onset of cold weather, they must be protected as ornamental grasses, sensitive to frost, for example. Pampas grass, some types of sedge. Simply tie the leaves of the grass into a bundle, covering material for plants for the winter, and the ground around the plant cover with a layer of bark or twigs of coniferous trees - to protect the inside of both plants from frost, and as moisture, many types of grass cannot tolerate excess. In the case of species that are more sensitive to frost, further around the plant we stick out pegs on which cardigans contain insulating material, for example. Covering material for plants for the winter.To use presentation previews, create an account for yourself ( account) Google and log in: https://accounts.google.com
Slide captions:
THE WORLD AROUND UMK "HARMONY", 3rd GRADE MARCHENKO E.V. MBOU Secondary School No. 3 Krasny Sulin, Rostov region. PLANTS IN WINTER. HOW DO TREES GROW?
BEHAMIZED BY THE WINTER WINTER, THE FOREST STANDS AND UNDER THE SNOW FRINGED, MOTIONAL, Mute, WONDERFUL LIFE IT SHINES. F. TYUTCHEV
WHAT IS THE IMPORTANCE OF SNOW COVER FOR PLANTS? SNOW COVER HELPS PLANTS SURVIVE THE WINTER.
ROWAN BERRIES WILL BECOME SWEETER FROM FROST.
HOW DO TREES WINTER? BIRCH SPRUCE
THE TRUNK OF ANY TREE IS COVERED WITH BARK. THESE ARE DEAD PLANT CELLS, THEY NO LONGER FLOW WATER AND NUTRIENTS. THE BARK PROTECTS THE TRUNK FROM DAMAGE, FROM HEAT AND FROST. THE THICKNESS OF THE BARK CAN GO UP TO 30 CM.
HOW TO HELP TREES IN WINTER?
HOW DO TREES GROW? A PINE TRUNK GROWS BY 2-3 CM IN ONE DAY. THE TREE GROWS THE MOST IN THE MORNING AND EVENING. AT NIGHT THE TREE RESTS AND ALMOST DOESN'T GROW. TREES GROW FROM MAY TO JULY. FASTEST IN JUNE. THE WINTER PERIOD IN THE LIFE OF TREES IS CALLED THE STATE OF REST. THEY DO NOT GROW UNTIL SPRING.
HOW TO FIND OUT HOW OLD A TREE IS? THE TRUNK GROWS SLOWER IN THICKNESS THAN IN HEIGHT. THE TRUNK THICKENS BY ABOUT 2-3 CM PER YEAR. THROUGH RINGS CAN BE VIEWED ON THE CUTTING OF A TREE OR ON A STUMP. BY THE NUMBER OF RINGS YOU CAN DETERMINE HOW OLD A TREE IS.
OAK CAN LIVE UP TO 2000 YEARS. MAPLE CAN LIVE UP TO 5OO YEARS.
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Presentation for the OD summary on cognitive development “How plants prepare for winter” in the preparatory group.
Goal: 1. Expand and clarify children’s ideas about preparing trees, herbaceous plants for winter. 2. To provide knowledge that leaf fall is an adaptation of plants to harsh winter conditions.
Opening speech by the teacher The end of early autumn has come, and golden autumn has come into its own. This is the time for the brightest coloring of the leaves. Sunny days alternate with cold and rainy ones. There are fewer and fewer sunny days, and the air temperature is dropping every day. For almost all plants, autumn is a period of calm or, for example, the end of the life cycle. dill, finish growing and dry out.
Teacher's story “Leaf fall is the preparation of plants for harsh conditions. In autumn there is little sunlight and heat for plants, and the green color of the leaves gives way to yellow, orange, blue-violet. Of the trees, only rowan, aspen and maple autumn leaves
are red. winter» Rowan leaves Aspen leaves Maple leaves
winter” Alder and willow remain green until the leaves fall. Willow Olkh a “Leaf fall is the preparation of plants for harsh conditions Teacher’s story All other trees have leaves that turn yellow, but in different ways: bright yellow leaves on birch, darker yellow on elm, yellow-brown on oak, golden yellow on linden trees Oak Elm Birch and Linden
The story of a winter educator" "Leaf fall is the preparation of plants for harsh conditions. Most trees shed their colorful foliage. Why should trees shed such a beautiful outfit? The tree prudently removes all unnecessary substances into the foliage. Then, like a cork, the leaf petiole is plugged with dead cells. And with the first gust of wind, the leaves break off and fall. The leaves are starting to fall. It is an integral and significant part of plant life.
The cover formed by fallen leaves protects trees from winter frosts and saturates the roots with useful substances.
“Leaf fall is the preparation of plants for harsh conditions. A story from a winter educator” Spruce Pine Not all trees shed their leaves, for example, pine and spruce are evergreen species. Their leaves - needles - are not afraid of frost. Each needle, just like a fur coat, was covered with a waxy coating.
Remember, did the leaves begin to fall from the oak and birch trees at the same time? - Do you remember which tree had the first yellow leaves and when? Conversation “How trees prepare for winter” No, the birch tree is the first tree to begin leaf fall, the oak tree - later. On linden and birch in early autumn. Yellow, red, orange, blue-violet. Pine, spruce. In autumn there is little sunlight and warmth. For example, a birch leaf is always yellow, while a mountain ash leaf is red. - Is there a difference in the color of the leaves? appeared - Tell me, what are autumn leaves like?
- What trees do you know that do not shed their leaves in the fall?
Teacher’s story “Herbs are also waiting for winter and preparing for it” During our walks, we already paid attention to herbaceous plants, and noticed that their appearance had changed compared to summer. For herbaceous plants, autumn is also a period of calm or the end of the life cycle.
Due to the fact that there are fewer and fewer sunny days and the air temperature gradually drops, annual plants such as peas, dill and others finish their growth and dry out. Dill Peas The same thing happens with annual flowers - calendula, marigolds, asters and others. Calendula and Marigolds Astra Peas DillCalendulaMarigoldsAster
Slide 2
In order to find out how the plants in our experimental plot look in winter, what features of their structure help them survive frosts and snowfalls, we decided to tell you a little about the climate in our city, since it greatly affects the vegetation cover.
Slide 3
Features of the climate in Kamchatka
The climate in Kamchatka is marine monsoon. It has some special features.
The first feature is that we have a large amount of precipitation.
Slide 4
The second feature is strong winds, often changing their direction, hurricanes and even storms.
Slide 5
The third feature is the frequent variability of the weather in all seasons of the year, especially in winter.
Slide 6
The fourth feature is a long, snowy winter and a short cloudy summer. In this regard, the vegetation in Kamchatka is unusual and unique.
Slide 7
On December 1, the guys from our class and I went to the Lesok experimental site. Each was tasked with using observations and reflection to identify how plants adapted to winter.
Slide 8
Our observations Winter is not only a cold season, but also a dry season. In winter, plants face dry air and soil. Therefore, plants have various adaptations to reduce winter evaporation. One of these adaptations is leaf fall, due to which the evaporating surface of the plant is reduced many times. Leaves have long fallen from all the trees and shrubs growing in our experimental plot. Slide 9 Some plants in our flora overwinter with green leaves. Among the trees and shrubs we know spruce, pine, fir, dwarf cedar -
evergreens
(speedwell, cuff) form creeping shoots with buds located near the surface of the earth. These shoots and buds are well protected by a large cover of snow from severe frosts. On our site we found plants that go under the snow with green leaves and keep them until spring. Such plants are called winter green. Some winter green plants
Slide 11
Plants whose buds are high above the ground have additional adaptations. Already in mid-summer, wintering buds are formed on the tops of the shoots and in the axils of the leaves, protected by dense leathery scales. We cut several branches with such buds, brought them to school and placed them in water for further observation.
Slide 12
We noticed a browning of the initially green branches of some plants growing in our area. This indicates that a layer of cork has formed under the skin, which further protects the plants in winter.
