Impact of Soil and Water Conservation Measures and Slope Position on Selected Soil Attributes at a Watershed Scale

Table 2

Effects of slope gradient on selected soil physicochemical properties in the study watershed.

Slope classes

Parameters

Clay (%)

Silt (%)

Sand (%)

BD (g·cm^−3)

MC (%)

PD (g·cm^−3)

TP (%)

pH (H2O)

OC (%)

CEC (cmol (+)kg^−1)

TN (%)

Ava.P (ppm)

Ava.K (cmol(+)kg^−1)

Upper (30–60%)

35.50b

33.50

31.00a

1.40a

10.52a

1.94a

26.68a

6.10a

1.83a

35.17a

0.14a

2.80a

0.53

Middle (15–30%)

37.67b

35.67

26.67b

1.22b

16.73b

2.25b

44.44b

6.35b

1.86a

43.10b

0.15a

5.23b

0.52

Lower (10–15%)

41.67a

34.50

23.83c

1.14c

19.81c

2.54c

51.85c

6.65c

2.53b

48.90c

0.18b

8.01c

0.45

LSD (0.05)

3.22

Ns

2.49

0.03

2.27

0.13

3.98

0.05

0.26

0.95

0.02

1.04

Ns

CV (%)

9.95

10.75

10.82

12.97

17.10

16.71

11.46

8.60

14.61

12.64

12.00

22.92

19.59

BD = Bulk density, MC = moisture content, PD = particle density, TP = total porosity, CEC = cation exchange capacity, TN = total nitrogen, Ava.P = available phosphorus, Ava.K = available potassium, OC = organic carbon, LSD = least significant difference, and CV = coefficient of variation.