Post Bauxite Mining Land Soil Characteristics and Its Effects on the Growth of Falcataria moluccana (Miq.) Barneby & J. W. Grimes and Albizia saman (Jacq.) Merr.
Table 1
Chemical characteristics of the soils from the natural forests and post bauxite mining land.
Location
pH (H2O)
PH (KCl)
Total carbon (g/kg)
Total nitrogen (g/kg)
C/N ratio
Available P (mgP2O5/kg)
CEC (cmol/kg)
Ca (mg/kg)
Mg (mg/kg)
K (mg/kg)
Na (mg/kg)
Fe (mg/kg)
Ni (mg/kg)
Natural forest
5.06
a
3.99
b
2.88
a
1.6
a
19.0
b
13.4
a
12.75
a
11.24
a
1.82
38.04
a
1.35
a
4.49
a
7.82
a
SE
0.07
0.04
4.1
0.3
0.9
0.2
1.71
0.29
0.74
19.39
0.52
0.52
1.02
Postmining
4.96
a
4.52
a
7.0
b
0.4
b
39.4
a
11.3
b
8.90
a
0.92
b
81.54
b
0.65
b
3.72
a
5.72
a
SE
0.05
0.09
2.5
0.2
8.8
0.1
2.44
0.22
45.05
0.08
0.18
1.52
Different letters within column indicate a significant differences () by the t test. Mean ± standard error (SE) is shown (n = 15). : below the detection limit.
