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Learn what sapwood and heartwood are, how they form in woody stems, and how to distinguish them by color and other features. This article also explains the implications of sapwood and heartwood for woodworkers and the environment.
Heartwood is the dead, central wood of trees that is dark, strong, and resistant to decay. Learn how heartwood differs from sapwood and xylem, and see related topics and articles on public utilities and natural monopolies.
- The Editors of Encyclopaedia Britannica
Oct 16, 2023 · Learn the key characteristics and differences between heartwood and sapwood, the two components of a tree's trunk. Find out when to choose each type of wood for your woodworking projects and how to use them harmoniously.
- What Is Heartwood
- What Is Sapwood
- Similarities Between Heartwood and Sapwood
- Difference Between Heartwood and Sapwood
Heartwood or duramen is the inner portion of the woody stem, containing a plugged secondary xylem. The formation of the heartwood is genetically programmed. With the growth, the stem increases its diameter by forming new xylem and phloem. Therefore, the more centered, old xylem becomes useless. Then, this part of xylem converts into a part with an ...
Sapwood or laburnum is the starting form of wood of any tree. It occurs from a thin layer of cells beneath the bark called the vascular cambium, which produces wood cells to the inside and bark cells to the outside. Therefore, the sapwood always contains newly-forming cells that are alive. Also, since these cells do not contain any deposited chemic...
Heartwood and sapwood are the two types of wood that occur in a cross section of a woody tree.A considerable part of both types of wood contains the secondary xylem. Also, both form from the action of vascular cambium.Also, both types of wood are important for the maintenance of life of a tree. They provide structural support to the tree.Definition
Heartwood refers to the dense inner part of a tree trunk, yielding the hardest timber while sapwood refers to the soft outer layers of the recently formed wood between the heartwood and the bark, containing the functioning vascular tissue. Thus, this is the main difference between heartwood and sapwood.
Also Called as
Moreover, another name of heartwood is duramen and that of sapwood is alburnum.
Occurrence
Another difference between heartwood and sapwood is that the heartwood occurs in the center of the stem while sapwood occurs in the peripheral region.
Learn the anatomical and functional differences between heartwood and sapwood, two types of wood in trees. Heartwood is dark, dead and durable, while sapwood is light, living and susceptible to decay.
Next to it is the sapwood, and the innermost part is the heartwood. In this article, we are going to dissect the two essential parts of wood– sapwood, and heartwood. Knowing these two with their common differences and functions helps shed light on which tree part is best for your woodworking project.
