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Table 2 Number of forest stands, substudies, and mean response ratios (with 95 % confidence interval) for Alltext, Clay, and Sand per depth class

From: Impact of mechanized harvesting on compaction of sandy and clayey forest soils: results of a meta-analysis

Depth class

Texture

Forest stands

Substudies

Mean response ratio

0–10 cm

Alltext

35

98

0.11 ± 0.01

Clay

2

4

0.16 ± 0.05

Sand

8

20

0.12 ± 0.02

10–20 cm

Alltext

37

102

0.06 ± 0.01

Clay

2

4

0.05 ± 0.04

Sand

10

24

0.07 ± 0.01

20–30 cm

Alltext

28

88

0.05 ± 0.01

Clay

1

3

0.04 ± 0.05

Sand

5

17

0.08 ± 0.01