Understanding Tree Rings

Front

What is the function of the cambium layer in a tree?

Back

The cambium layer is responsible for the growth of new xylem (wood) and phloem (inner bark) cells.

Front

What does phloem transport in a tree?

Back

Phloem transports nutrients and sugars produced in the leaves down to the roots.

Front

What is the outer bark of a tree?

Back

The outer bark is the protective layer that covers the tree, preventing water loss and protecting against pests.

Front

What is heartwood?

Back

Heartwood is the inner, dead part of the tree that provides structural support and is typically darker in color.

Front

What is sapwood?

Back

Sapwood is the outer, living part of the xylem that transports water and nutrients from the roots to the leaves.

Front

How do tree rings form?

Back

Tree rings form as a result of the growth of new xylem cells each year, with each ring representing one year of growth.

Front

What does a light-colored tree ring indicate?

Back

A light-colored tree ring typically indicates growth during the spring and early summer when conditions are favorable.

Front

What does a dark-colored tree ring indicate?

Back

A dark-colored tree ring usually indicates slower growth during late summer and fall, often due to less favorable conditions.

Front

How can tree rings be used to determine the age of a tree?

Back

The age of a tree can be determined by counting the number of rings from the center (pith) to the outer edge.

Front

What environmental factors can affect tree ring growth?

Back

Factors such as water availability, temperature, and soil nutrients can influence the width and color of tree rings.