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Table 5 Summary statistics of plot-level covariates

From: Predisposing factors’ effects on mortality of oak (Quercus) and hickory (Carya) species in mature forests undergoing mesophication in Appalachian Ohio

Covariate

Mean

Median

Standard error

Transformed aspect

1.08

1.16

0.08

Proportion distance to ridge

0.53

0.56

0.03

Percent slope

31.62

33.00

1.95

Basal area plot (m2∙ha−1)

33.38

30.68

1.46

Age (years)

135.3

130.0

1.93

Solum depth (cm)

73.90

74.00

3.33

pH of B horizon

5.08

5.00

0.06