Timber and Parts of Timber

TIMBER:

It is defined as:

      “TIMBER IS THE MATERIAL OR PRODUCT OBTAINED WHEN CUT AND MACHINED FROM THE TREES”

PARTS OF Timber:

 Generally there are three parts of a tree i.e.;

1.      Roots

2.      Stem

3.      Branches

PARTS OF TRUNK:

Trunk is said to be the main woody stem of a Tree.

Trunk parts are:

1. Bark:

      The protected outside cover of the trunk located outside is called bark.

2. Annual Rings:

                         These are also called the growth rings of the tree. These are actually the marks or positions show the yearly growth of the trunk.

3. Pith:

            The central or inner part of the trunk.

4. Hearth Wood:

              The wood which is responsible for surrounding the pore of the trunk.  Usually dark in color and have little or no sap.

5. Sap Wood:

                Most recent annual rings formed in this portion of the trunk. It is about 20-50% of the total radius of trunk.

6. Cambium Layer:

                         Development or growth area of the trunk is called cambium layer.

7. Xylem:

            Transportation of water is done through this part of wood/trunk.

8. Phyleum:

                   The inner part of the bark responsible for the transports organic nutrients to the wood, in case of trees it is Sucrose.

Timber and Parts of Timber