1.3 KiB
2.21.4. Management modifiers on decomposition rate¶
Tillage of cropland soil is represented as an additional rate scalar that depends on tillage intensity (default off), soil pool, and time since planting (Graham et al., 2021). The tillage enhancement is strongest in the first 14 days after planting (idpp < 15), weaker in the next 30 days (15 ≤ idpp < 45), weaker still in the next 30 days (45 ≤ idpp < 75), and nonexistent after that (idpp ≥ 75).
Table 2.21.5 Tillage decomposition rate scalars. Values in each cell represent enhancement in different periods of days past planting: [0, 14], [15, 44], [45, 74].¶
| | low
| high
| Litter 2 (cel_lit) |
| 1.5, 1.5, 1.1
| 1.8, 1.5, 1.1
| | Litter 3 (lig_lit)
| 1.5, 1.5, 1.1
| 1.8, 1.5, 1.1
| | SOM 1 (act_som)
| 1.0, 1.0, 1.0
| 1.2, 1.0, 1.0
| | SOM 2 (slo_som)
| 3.0, 1.6, 1.3
| 4.8, 3.5, 2.5
| | SOM 3 (pas_som)
| 3.0, 1.6, 1.3
| 4.8, 3.5, 2.5
|