Tag Archives: tree rings

What is Dendrochronology?

Decode a tree’s life with the help of dendrochronology.  What is dendrochronology?  It’s the dating and study of a tree’s annual rings.

An unusual tree in Confederation Park, Fergus Ontario

Dendrochronology:  The Life of a Tree

via Trees Are Good

There is so much to learn from a tree.  Dendrochronology, or the study of a tree’s rings, can provide useful data from years past.  A tree’s rings can help us understand environmental factors of the past, therefore assisting us with making better decisions for the future.  Scientists and historians alike find the study of a tree’s rings useful for giving historical artifacts a timeline.

Counting the Rings:  A Myth?

You may have head you can find the age of a tree by counting it’s rings.  This is not completely true.  Through numerous studies, dendrochronologists have discovered that counting a tree’s rings can lead to inaccurate conclusions.  When searching for an accurate date, various techniques are required to “cross-date” artifacts and wood samples.  Learn more about gathering information from tree rings with the UA Laboratory of Tree-Ring Research here.

What Trees Tell Us About Temperature

Trees are a great indicator of the Earth’s past climate and local environmental patterns.  Scientists can even gather information about climate and temperature pre-dating climate documentation with the help of a very mature tree’s rings.  Learn more about dendrochronology with this kid-friendly guide from NASA.

The color and width of tree rings can provide snapshots of past climate conditions; via climatekids.nasa.gov/tree-rings/

Did You Know:  Tree rings grow wider in warm, wet years and appear thin during cold, dry years.  If a tree has weathered stressful conditions like drought, a tree may have very limited growth during those years.

Fun Activity:  Listen to a Tree

Have you ever wondered what tree rings would sound like when played like a record?  You can listen on YouTube here.