CONTENTS:   (see about background photo here)
1) Background
How to Read and Understand Tree Cores
Previous Literature: 1936 study of tree growth in New England
2) Materials and Methods
Cores Sampling
What are good and bad years?
Data Analysis
3) CORE EXAMPLES: What do tree cores look like?
Sugar Maple core showing all the outstanding "bad years"
4) Results -- RESULTS MENU (below)
WORST years for growth at Hubbard Brook since beginning the Hubbard Brook Ecosytem Study in 1956
            -- species comparisons
            -- elevation comparisons

Long-term Growth: A look at bad and good years for tree growth at Hubbard Brook before and including the HBES

Summary of Results

4) Acknowledgements and References
5) RAW DATA SETS MENU
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About this Project


 

 RESULTS 

 
"Bad" and "Good" Years for Tree Growth at Hubbard Brook Experimental Forest 
(1956 -1999)
Species overall results:
Sugar Maple
American Beech
Yellow Birch
Balsam Fir
Red Spruce
White Birch (only one data set)
Species results by individual data sets:
Sugar Maple
American Beech
Yellow Birch
Balsam Fir
Red Spruce
Results by Elevation
"Bad" and  "Good" Growth Summary
Data Sets
"Bad" Years Long-Term:
1900-1999 Period