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Table 2 The summary of mean separation analysis for soil organic matter (OC) and mineral nitrogen (MN) content distributions at 0.10 m depth increments and for their pools (totals) in soil profiles along the four transects to determine whether these were impacted by different land-use practices and/or the physical location of the transects in the farm. During the experimental design stage, two out of the four transects were considered as replicates for the 3-year-old reforested riparian (RR) and the corresponding cropland (CP) and bare riparian (BR) land-uses and the other two transects as replicates for the 6-year-old RR, CP and BR land-uses

From: Characterizing selected soil attributes of different land-use management to assess reforestation benefits of deforested riparian buffers

Land-use

Mean organic carbon (OC) content in the profile sections

g C/kg soil

OC-pool

Depth increments (m)

0–0.10

0.10–0.20

0.20–0.30

0.30–0.40

0–0.40

Replicate 1 for the 6-year-old reforest

6 yr-cropland-1

35.6A,d

21.4B,d

18.3 C,a

15.7 C,d

91.0e

6 yr-bare riparian-1

24.3A,b

16.9B,b

13.3 C,b

10.3 D,b

64.8b

6 yr-reforested riparian-1

34.4A,d

18.2B,c

15.1 C,d

12.8 D,a

80.5f

Replicate 2 for the 6-year-old reforest

6 yr-cropland-2

44.0A,a

36.9B,e

25.0 C,e

25.5 C,e

131.4i

6 yr-bare riparian-2

28.4A,e

18.2B,c

12.8 C,b

11.0 D,b

70.4d

6 yr-reforested riparian-2

34.2A,d

21.7B,d

18.1 C,a

14.9 D,d

88.9e

Replicate 3 for the 3-year-old reforest

3 yr-cropland-1

43.1A,a

25.3B,a

17.7 C,a

13.4 D,a

99.5a

3 yr-reforested riparian-1

23.3A,b

15.3B,b

12.2 C,b

11.0 D,b

61.8b

Replicate 4 for the 3-year-old reforest

3 yr-cropland-2

40.4A,a

26.1B,a

22.8 C,c

20.2 D,c

109.5c

3 yr-bare riparian-2

26.7A,c

18.2B,c

15.9 C,d

12.9 D,a

73.7d

3 yr-reforested riparian-2

34.8A,d

22.6B,d

16.0 C,d

16.1C,d

88.7e

 

Mean nitrogen (MN) content in the profile sections

g N/kg soil

MN-pool

0–0.10

0.10–0.20

0.20–0.30

0.30–0.40

0–0.40

Replicate 1 for the 6-year-old reforest

6 yr-cropland-1

3.22 A,e

2.12 B,c

1.69 C,e

1.40 D,f

8.44 c

6 yr-bare riparian-1

2.24 A,b

1.42 B,d

1.21 C,d

0.89 D,b

5.76 b

6 yr-reforested riparian-1

3.02 A,e

1.81 B,e

1.24 C,d

0.88 D,b

6.95f

Replicate 2 for the 6-year-old reforest

6 yr-cropland-2

3.61 A,c

3.03 B,f

2.17 C,f

1.81 D,g

10.62 g

6 yr-bare riparian-2

2.50 A,e

1.67 B,g

1.14 C,g

0.87 D,b

6.20d

6 yr-reforested riparian-2

2.84 A,d

2.04 B,c

1.42 C,c

1.12 D,c

7.42f

Replicate 3 for the 3-year-old reforest

3 yr-cropland-1

3.96 A,a

2.32 B,a

1.57 C,a

1.61C,a

9.46a

3 yr-reforested riparian-1

2.08 A,b

1.23 B,b

0.94 C,b

0.87 C,b

5.12b

Replicate 4 for the 3-year-old reforest

3 yr-cropland-2

3.57 A,c

2.07 B,c

1.44 C,c

1.07 D,c

8.15c

3 yr-bare riparian-2

2.40 A,d

1.50 B,d

1.32 C,d

1.28 C,d

6.50d

3 yr-reforested riparian-2

3.08 A,e

2.23 B,a

1.75 C,e

1.51 D,e

8.57c

  1. Same block letter(s) in a given row or small letter(s) in a given column indicate the means are not significantly different at P < 0.05. The 3-year-old RR along one out of the four transects is abbreviated as 3 yr-reforested riparian-1, and the corresponding CP as 3 yr-cropland-1 and the BR as 3 yr-bare riparian-1. Similar abbreviations; 3 yr-reforested riparian-2, 3 yr-cropland-2, 3 yr-bare riparian-2 are used for the second 3-year-old RR, the corresponding CP and BR land-uses along the second transect. The abbreviations for the two 6-year-old RR and the corresponding CP and BR land-use practices along the other two transects are similar to what has been used for the 3-year-old RR transects land-uses