The main signs to identify tree species is the width of the sapwood, the presence of the kernel, different degrees of visibility of the annual layers, the sharpness of the transition from the core to the sapwood, size and the presence of medullary rays, the presence of resin ducts, the number and the size and diameter of vessels of the wood. Additional characteristics include luster, color, odor, texture, shape, and number of knots.
Such speakeasy species of trees like fir, spruce, beech, and aspen, Central part of the trunk is markedly different from peripheral minimal moisture content, but by color is almost impossible to distinguish
The width of annual rings depend on its mechanical properties, not just appearance. The best wood among coniferous trees is considered to be one in which the layers is most narrow. Pine tree with reddish wood and narrow annual rings is called among the masters of employment and very much appreciated. Pine tree with wide rings is called Mandovi, but its strength is much lower than the previous.
If you look closely to the end section of deciduous trees, you will be able to distinguish between dark or bright spots, this so-called vessels of the tree. In ash, oak and elm, large vessels are located in three rows in the area of early wood, forming a dark ring in each annual layer. That is why these types of trees are called ring-vascular. They have a durable and heavy wood.
The aspen, birch and lime vessels are hardly visible, very shallow. These types of trees are called absently-vascular. The Apple, maple and birch wood solids. And aspen, Linden and alder – soft structure.
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?"
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.
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.
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.
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.
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.
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.
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.
These are some of the most common us trees. To determine the exact type of wood, you may need specific determinants.