Table 3 ANCOVA table for models testing the influence of transect A–C and beech-oak index (index) on (a) aboveground biomass carbon (AGC in Mg C ha⁻¹) and (b) soil organic carbon (SOC in Mg C ha⁻¹) in the mineral soil (0–100 cm) in the plots of the three transects. The model was of the form: AGC or SOC ~ transect + index

(a) Aboveground biomass carbon (square-root transformed)

(b) Soil organic carbon (log 10-transformed)

Df

Sum Sq

Mean Sq

F value

p value

Df

Sum Sq

Mean Sq

F value

p value

Transect

2

195.39

97.70

19.96

 < 0.001

2

0.11

0.05

4.72

 < 0.05

Index

1

110.32

110.32

22.54

 < 0.001

1

0.07

0.07

6.48

 < 0.05

Residuals

261

1277.31

4.89

37

0.43

0.01

Adjusted R²: 0.1838

Adjusted R²: 0.2443