Table 2 Values of pHH2O, electrical conductivity (EC), sum of exchangeable cations (SEC), cation-exchange capacity (CEC), total carbon (C), total nitrogen (N), total phosphorus (P), total microbial activity (FDA), and AMF spores density of non-sterile sandy soils exposed to four NaCl concentrations (0, 86, 171, and 257 mM)
Salinity (mM NaCl) | pHH2O | EC (mS cm−1) | SEC (meq%) | CEC (meq%) | C (mg kg−1) | N (mg kg−1) | P (mg kg−1) | FDA (μg fluorescein g soil−1 h−1) | AMF spores density (spores 100 g soil−1) |
|---|---|---|---|---|---|---|---|---|---|
0 | 6.5 ± 0.3b | 0.65 ± 0.14a | 3.32 ± 0.84a | 3.10 ± 0.33a | 100.5 ± 15.6b | 7.3 ± 2.1a | 73.6 ± 10.8a | 5.26 ± 1.82b | 74 ± 10b |
86 | 6.1 ± 0.1a | 1.19 ± 0.44a | 5.33 ± 0.8b | 3.04 ± 0.33a | 97.4 ± 14.9b | 7.0 ± 2.5a | 72.8 ± 17.8a | 4.18 ± 1.25b | 60 ± 7b |
171 | 6.1 ± 0.2a | 3.20 ± 1.00b | 9.21 ± 1.09c | 3.06 ± 0.20a | 93.6 ± 13.4b | 7.0 ± 2.0a | 71.6 ± 11.8a | 3.59 ± 1.12ab | 61 ± 9b |
257 | 6.0 ± 0.2a | 4.49 ± 1.38b | 10.88 ± 1.62c | 3.02 ± 0.38a | 76.3 ± 8.2a | 6.2 ± 2.1a | 60.8 ± 16.1a | 2.79 ± 1.05a | 36 ± 4a |