Comparisons were made between the two forest
types using t-tests with each plot considered an independent
replicate. For tree heights, a Mann–Whitney
test was carried out,
pooling the heights from all the
plots in each forest type.
Forest size class structure was
compared using a w2-test, again pooling the data for
each forest type. An analysis of co-variance was used
to compare the differences between tree growth rates
in the two forest types using the dbh in 1993 as a covariate.
All statistics were carried out using Minitab
12.2.