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Table 10.4
Soil properties (carbon, nitrogen, C/N ratio, bulk density, and carbon mass) by sampling depth in forest and in oil palm plantation sites in Tanjung
Puting, Indonesia
Ecosystem
Site
Sample depth (cm)
Carbon (%)
Nitrogen (%)
C/N ratio
Bulk density
(g/cm 3
)
Carbon mass
(Mg/ha)
Primary forest
Beguruh
0–15
43.92
± 1.04
1.60
± 0.07
28.48
± 1.59
0.30
± 0.03
200
± 19
15–30
48.36
± 1.30
1.22
± 0.05
40.77
± 1.95
0.26
± 0.06
186
± 18
30–50
51.36
± 0.56
1.13
± 0.04
46.28
± 1.79
0.16
± 0.04
167
± 24
50–100
51.01
± 0.61
1.10
± 0.02
46.66
± 1.27
0.18
± 0.04
459
± 79
100–290
49.66
± 1.10
1.05
± 0.04
48.87
± 1.33
0.13
± 0.03
1298
± 345
2310
± 485
Pesalat
0–15
48.50
± 1.18
1.62
± 0.08
31.52
± 2.27
0.20
± 0.05
139
± 22
15–30
52.37
± 1.19
1.27
± 0.04
39.81
± 3.09
0.15
± 0.04
110
± 22
30–50
52.25
± 0.03
1.09
± 0.05
49.04
± 0.05
0.13
± 0.03
114
± 30
50–100
50.03
± 1.19
1.04
± 0.04
48.92
± 1.64
0.09
± 0.02
217
± 42
100–155
46.75
± 1.59
1.15
± 0.09
43.51
± 2.50
0.08
± 0.02
162
± 31
742
± 147
Mean primary forest
222
± 12
49.42
± 0.83 a
1.23
± 0.07 a
42.29
± 2.29 a
0.17
± 0.02 a
1526
± 316
Secondary forest
Tanjung Harapan
0–15
33.85
± 1.05
1.31
± 0.10
28.47
± 2.38
0.27
± 0.03
144
± 19
15–30
32.63
± 1.28
0.97
± 0.11
37.84
± 3.09
0.29
± 0.03
119
± 17
30–39
30.00
± 2.12
0.85
± 0.16
38.07
± 7.93
0.34
± 0.04
73
± 21
336
± 57
(continued)