Table 5 Assigned weighing indices for various parameters used for assessment of soil quality (Kosmas et al. 1999)
Class | Description | Weight | ||
|---|---|---|---|---|
Texture | 1 | Good | L, SCL, SL, LS, CL | 1 |
2 | Moderate | SC, SiL SiCL | 1.2 | |
3 | Poor | Si, C, SiC | 1.6 | |
4 | Very poor | S | 2 | |
Slope | 1 | Very gentle to flat | < 6% | 1 |
2 | Gentle | 6–18% | 1.2 | |
3 | Steep | 18–35% | 1.5 | |
4 | Very steep | > 35% | 2 | |
Parent material | 1 | Good | Shale, schist, basic, ultra-basic, Conglomerates, unconsolidated | 1 |
2 | Moderate | Limestone, marble, granite, Rhyolite, Ignimbrite, gneiss, siltstone, sandstone | 1.7 | |
3 | Poor | Marl, Pyroclastics | 2 | |
Soil depth | 1 | Deep | > 75 | 1 |
2 | Moderate | 75–30 | 2 | |
3 | Shallow | 15–30 | 3 | |
4 | Very shallow | < 15 | 4 | |
Drainage | 1 | Well drained | 1 | |
2 | Imperfectly drained | 1.2 | ||
3 | Poorly drained | 2 | ||
Rock fragments | 1 | Very stony | > 60 | 1 |
2 | Stony | 20–60 | 1.3 | |
3 | Bare to slightly stony | < 20 | 2 |