Table 1 Soil status of the research sites at Salambala. The samples were taken in the centre of the respective sites. SAR represents the sodium absorption ratio. EC stands for electric conductivity, a proxy for salinity (Soil analysis by the Soil Laboratory, Ministry of Agriculture, Water and Rural Development, Windhoek). Since the site ‘Shrubs’ was showing two distinct layers, both layers were sampled
Sample site (depth) | Chemical characterisation | Texture (Vol%) | ||||
|---|---|---|---|---|---|---|
pHh20 | ECh20 (mS∙cm−1) | SAR (meq∙L−1) | Sand (> 0.063 mm) | Silt (0.063–0.002 mm) | Clay (< 0.002 mm) | |
‘Forest’ (40–80 cm) | 5.75 | 2.89 | 6.09 | 51.6 | 29.4 | 19.0 |
‘Shrubs’ (0–60 cm) | 8.73 | 1.44 | 28.36 | 60.3 | 13.6 | 26.1 |
‘Shrubs’ (60–150 cm) | 7.63 | 0.12 | 0.21 | 96.9 | 1.4 | 1.7 |
‘Swamp’ (40–80 cm) | 7.74 | 0.61 | 1.76 | 53.6 | 17.2 | 29.2 |