Definition

1. Noun:
   • Sapwood, Alburnum: The younger, softer, living outer layers of wood in a tree trunk or branch, just beneath the bark. It is typically lighter in color (often pale yellow or white) than the inner heartwood and is responsible for transporting water and nutrients from the roots to the leaves.

Usage Examples

• Noun:
  • Gỗ dác thường dễ bị mối mọt tấn công hơn gỗ lõi. (Sapwood is usually more susceptible to insect attack than heartwood.)
  • Khi đóng đồ gỗ, người thợ thường loại bỏ phần gỗ dác. (When making wooden furniture, the craftsman often removes the sapwood.)
  • Màu sắc của gỗ dác và gỗ lõi trên cùng một cây có thể khác biệt rõ rệt. (The color of the sapwood and the heartwood on the same tree can be distinctly different.)

Advanced Usage

• In woodworking and timber grading, the presence of sapwood can affect the value and durability of the lumber, as it is generally less resistant to decay.
• The term is used in botanical and forestry contexts to describe the physiological state and function of this part of the tree's anatomy.

Variants and Related Words

• Gỗ lõi (n): Heartwood, duramen. The older, harder, non-living central wood of a tree, which is usually darker and more durable.
  • Gỗ lõi thường có độ bền cao hơn gỗ dác. (Heartwood usually has higher durability than sapwood.)

Synonyms

• Sapwood: The more common technical term in English.
• Alburnum: A less common, more specialized botanical term.

Related Terms

• Vỏ cây (n): Bark. The protective outer covering of a tree.
• Tầng sinh mạch (n): Cambium. The thin layer of cells between the bark and the wood that produces new bark and wood.

1. Sap-wood, alburnum