Tree rings cannot only tell us the age of a tree like we learned when we were younger in a science class, but also provide as great environmental indicators. Scientists use the tree rings to reconstruct past climates, trees produce small rings during the years or drought and larger rings during years of good growing conditions. By counting the rings from the middle of the trunk and studying their width a scientists can reconstruct an approximate calendar of wet and dry years. Scientists can also see the frequency of fires by finding scars that appear in the growth rings.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC