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A Single Year’s Tree Growth Season by Season
End of the
growth
year
No Growth
in Winter
One Growing Season
Fall
Summer Spring
Beginning of
the growth
year
Two Years of Tree Growth
Changes in cell size during the year reflects changes in plant volume and productivity
from one year to the next. When conditions are favorable, productivity is high, and
rings are wide. When conditions are poor, productivity is low and rings are narrow.
tree ring of year two:
This ring follows the one to the right
Fall:
year 2
Summer:
year 2
Spring:
year 2
tree ring of year one:
This ring precedes the one to the left
Fall:
year 1
Summer:
year 1
Spring:
year 1
This end is ----
Which end of this sequence is toward the center of the tree?