Changes in Land Use System and Environmental Factors Affect Arbuscular Mycorrhizal Fungal Density and Diversity, and Enzyme Activities in Rhizospheric Soils of Acacia senegal (L.) Willd.
Table 1
Physicochemical characteristics of soils from Dahra and Goudiry (in Senegal).
Sites and soil origins
Dahra
Goudiry
PL
NP
BS
PL
NP
BS
Clay (%)
3.5b
5.53c
2.60a
6.86d
6.46d
6.76d
Silt (%)
10.3a
11.00a
10.25a
19.1c
18.23c
15.2b
Sand (%)
85.3cd
83.10c
85.97d
73.87a
75.46a
79.32b
Total carbon (%)
0.52b
0.83c
0.41a
0.77c
1.71d
0.74c
Total nitrogen (%)
0.05a
0.08c
0.05a
0.07c
0.16d
0.06b
C/N ratio
10
10
9
11
11
12
Total phosphorus (mg/kg)
49.33b
83.03c
33.12a
79.33c
166.00d
53.00b
Available phosphorus (mg/kg)
8.00a
29.68c
12.66b
8.29a
9.16a
7.47a
Ca (%)
0.92ab
1.11b
0.56a
1.33bc
6.44d
1.69c
Mg (%)
0.42a
0.56a
0.29a
0.42a
3.58b
0.53a
Na (%)
0.11ab
0.15b
0.09ab
0.15b
0.03a
0.14b
K (%)
0.20a
0.29b
0.19a
0.28b
0.90c
0.27b
pH (H2O)
6.05
6.11
5.71
6.13
6.53
6.23
PL: plantation of Acacia senegal; NP: natural population of Acacia senegal; BS: bulk soil. In the same row, values followed by the same letter are not significantly different according to the Student-Newman-Keuls test ().
