Advice 1: How to determine the age of a tree

Sometimes it is necessary to determine the age of the tree. If this plant planted by you or someone from your family, to say how much it was years ago, you will be able quite accurately. It is more difficult to determine the years of "unfamiliar" wood longevity. There are several methods for Dating the age ofa tree. One of the most accurate ways to determine is a count of annual rings on the frame of the trunk.
How to determine the age of a tree
You will need
  • - a saw or a drill of Pressler;
  • - solutions for coloring the wood;
  • microscope or magnifying glass.
Instruction
1
Make cut, as close as possible to the ground. For more convenience, you will need a pair of circles. For broad-leaved saw cut can be done on the bias so will increase the width of the rings. Good grind place a saw cut. Consider using a magnifying glass or binocular microscope annual rings. If, however, to distinguish between them it's still difficult, put on the wood alcoholic solution of aniline or of iron dichloride, methylene blue or diluted ink.
2
If it is impossible to cut down a tree, use a forest of bushes for incremental borer Pressler. In the right place, take a drill sample. Pull out the cylinder of wood and count the annual rings, as well as on the frame of the trunk. With the help of this device you can also easily measure annual layers.
3
To determine the ageand coniferous (pine, spruce, fir, cedar) trees required in the above two methods do not. The age of the conifers can learn counting whorls on the trunk. A whorl is called the fan-shaped divergence of the branches on the trunk of the tree. Count the number of whorls. To the obtained value for pine add 3 years for fir – 4 fir – 5, Kedr – 10. Add these figures should, because the first whorl from different trees does not appear in the first year of life. The resulting number will be the ageof the om tree.
4
And you can roughly determine the age of the plant, knowing the life expectancy of certain types. So, aspen can't live more than 100 years, often dies at 80 from wood diseases. Oak is long – lived-the average rises to 400-500 years. Yew trees live up to 2000 years. Cypress can live and 4000-5000 years. Sequoia – up to 7000.
Note
It should be remembered that in countries with tropical climates, where seasonality is not clearly observed, the counting of annual rings in trees is impossible. For age determination it will require a microscope, which will allow a clear view of the cells of the wood.
Useful advice
Should not be relied upon in determining the age, the thickness of the tree trunk. Under adverse conditions, such as poor illumination, soggy soil, damaged by pests or diseases, fires) the diameter of the trunk of the oppressed tree will be much smaller than plants of the same age, which do not suffer from such effects.

Advice 2: How to identify a tree

Spring fills our life with green trees in parks, woods and gardens. But do we know the trees well enough to accurately determine what the tree in front of us: spruce, pine, poplar or maple? What will you answer to the question inquiring the child if he ask you: "what is this tree?"
How to identify a tree
Instruction
1
To accurately determine the species of trees by their leaves. This will of course need some basic knowledge of the science of trees – dendrology and minimal experience. The fact that the sheet of each type of tree has a unique shape and structure.
2
Maple leaf is very difficult to confuse with the leaves of other trees. It is quite large and consists of five acute kind of "blades". Take a look at the Canada flag and you will see what it looks like maple leaf. You'll remember it for life.
3
The ash leaves are more complex, they are more like a separate branch, which housed several smooth leaf with narrow ends. Sheet ash usually has a yellow-green tint.
4
Oval, with serrated, the leaves Rowan in a special way located on the branch, it is very difficult to confuse with something else. In autumn, when the mountain ash appear bright juicy berries hanging in clusters, there is no need to identify this tree by its leaves.
5
Aspen have small, whitish, rounded, with wavy contour of the aspen leaves, but they can also determine other features. They are able to tremble, emitting a noise, something resembling a whisper. No wonder they say: "Shaking like a leaf". The problem here is the flattened shape of the base of the petiole, making it reminiscent of a thin plate. Wrong side of the aspen leaf has a whitish silver coloring.
6
Birch leaves practically everyone knows, they are round and have sharp gear edges. However, to understand that before you birch, and the leaves do not look. Beautiful birch in her white dress visible from afar.
7
Willow leaves are pointed, long and narrow shape. The lower part is grayish-white. The upper part of the leaf of the willow is covered with a kind of "fuzz", bottom sheet smooth.
8
These are some of the most common us trees. To determine the exact type of wood, you may need specific determinants.

Advice 3: How many years can grow oak

The oak is a symbol of courage, fortitude, a kind of superpower. Since ancient times, this tree, covered with legends and myths, was worshipped by many peoples, including the Slavs. The tree is really a giant among others. It reaches 30 meters in height, there are instances of higher – up to 40-50 meters. No wonder when I hear about something durable and reliable, carry out a comparison with the oak.
How many years can grow oak
A mighty tree called Quercus belongs to the genus of deciduous trees belonging to the Fagaceae family. Sheets is simple, lobed, toothed, and sometimes single cut, shape and size of which depends on subspecies. The tree blooms in April-may, its flowers are quite small and inconspicuous. Fruits acorns. Moreover, before beginning to bear fruit trees growing on open area. The oak is quite unpretentious, although light, undemanding to the soil, drought-resistant and winter-hardy.

Shaping wood



The species composition of the oak is very wide. In temperate, subtropical and tropical zones of the Northern hemisphere, there are about 450 species of this beautiful representative of the plant world. Of which in Russia is slightly less than 20, the Caucasus and the far East – more than 40.

Propagated tree acorns. It is important to note that germination of the acorn is saved only until the next spring. Let sprout, young shoot is in no hurry to ubiratsya in force, and for the first year reaches a height of not more than 10 cm. Growth over the next few years is even slower. But in 10 years the annual growth of the tree becomes more visible – up to 35 centimeters. Such a small increase kompensiruet duration of growth of up to 120, or even 200 years. Moreover, the growth after 80 years is slowing slightly but not stopping. During this period, the most intensively growing crown and thickens the trunk. When growth in height ceases, crown and stem remains are absorbed into force.

Reproduction and regeneration



The first fruits of the oak begins to make quite late, already in the 40 – 60 years. And grew up in a dense forest the tree starts to bear fruit later.

Felled or cut down by the oak quite well resumed the young shoots, which grows from the stump. Most of the residents of the oaks of this origin. Such trees different from growing up from an acorn in their appearance. They are below, and the trunks at the base are curved.

If we talk about the longevity of oak, it is quite significant – as much as 500 years. This is not the limit. In Ukraine, not far from Zaparozhe grows giant, which has 800 years. Russian bogatyrs-centenarians in the grove in Kolomenskoye – peers of the capital. It's hard to imagine that they saw these giants in my lifetime, what stories have passed them by.
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