a. What kind of growing season existed for the first four cores in 1967? How can you tell?
b. If poor tree growth is mainly caused by draught, which years were probably drought years? How can you tell?
c. Did this woodland have more years of drought or plentiful rainfall?
d. Why might a climatologist be interested in tree ring data from this woodland?
The following questions are OPTIONAL.
a) What does your graph show about the three cores (A,B, and C) and the climate?
4a) Global warming (caused by an increase of carbon dioxide in the atmosphere) is a current environmental topic that concerns scientists. The result of global warming is an increase in Earth's average temperature. Due to global warming, what differences would you expect to see between tree rings of today and tree rings in the future (100 years from now)?
4b) What factors can influence the growth of trees? List all the factors you can think of.
4c)Trees are like history books of the forest. But, what other objects in nature can we observe and measure to tell us something about certain environments? You may want to go to an outdoor location to brainstorm answers to this question.
4d) What is a dendrochronologist and what does one do?