What does the term 'sapwood' refer to?

The term 'sapwood' refers to the newly formed, living wood within a tree that is responsible for the transport of water and nutrients from the roots to the leaves and other parts of the tree. Unlike heartwood, which is the older, non-living central part of the tree, sapwood plays a crucial role in the tree's physiology. Its cellular structure contains living cells that are still functioning in transporting vital fluids, making it essential for the tree’s growth and overall health.

Sapwood typically appears lighter in color than heartwood due to its younger age and activity level, and it plays a key role in the tree's ability to sustain life. Understanding this distinction is important for both ecological studies and practical applications, such as woodworking and forestry management.