Table 3.
Distribution index value (DI)
| Depth (cm) | Horizon | TOC | TN | TP | AP | ||||
|---|---|---|---|---|---|---|---|---|---|
| Spring | Autumn | Spring | Autumn | Spring | Autumn | Spring | Autumn | ||
| Control | |||||||||
| 0–20 | A | 19.38 | 44.10 | 14.5 | 35.8 | 1.16 | 1.522 | 2.621 | 1.735 |
| 20–50 | ABv | 6.67 | 11.08 | 5.2 | 9.8 | 1.02 | 1.146 | 1.563 | 1.691 |
| 50–100 | BvC | 1.21 | 1.38 | 1.2 | 1.3 | 0.988 | 1.917 | 1.312 | 1.271 |
| Profile I | |||||||||
| 0–15 | A | 27.50 | 24.00 | 24.5 | 37.8 | 0.831 | 1.691 | 2.120 | 2.000 |
| 15–72 | Bv | 2.50 | 4.50 | 22.8 | 3.3 | 1.143 | 1.642 | 2.559 | 2.232 |
| Profile II | |||||||||
| 0–15 | A | 45.53 | 58.15 | 46.0 | 37.8 | 0.977 | 1.674 | 1.585 | 1.614 |
| 15–39 | ABv | 25.07 | 15.54 | 3.8 | 12.8 | 1.674 | 1.406 | 1.828 | 1.835 |
| 39–87 | C1 | 2.60 | 1.35 | 3.0 | 1.3 | 1.096 | 1.297 | 1.425 | 1.474 |
| Profile III | |||||||||
| 0–4 | A | 9.00 | 53.42 | 6.5 | 30.2 | 1.127 | 1.131 | 4.750 | 4.758 |
| 4–18 | ABv | 3.04 | 16.83 | 2.3 | 13.4 | 1.505 | 1.257 | 5.737 | 4.565 |
| 18–60 | Bv | 3.02 | 5.89 | 2.5 | 4.6 | 1.391 | 0.990 | 2.208 | 2.393 |
TOC total organic carbon, TN total nitrogen, TP total phosphorus, AP available phosphorus