Table 7 Basic information on the soil sampling sites.

From: Fractal features of soil particle size distributions and their potential as an indicator of Robinia pseudoacacia invasion1

Plantations

Slope(°)

Aspect

Altitude /m

Tree height/m

DBH/cm

Density/ha

pH

Soil thickness/cm

Robinia pseudoacacia

40

North

720

15.84

23.92

356

4.94

24.50

Pinus densiflora

26

North

703

12.48

22.62

470

4.67

35.33

Quercus acutissima

23

South

730

13.76

20.41

551

5.00

26.08

Larix kaempferi

29

North

718

15.30

18.25

640

4.98

32.00