| DataCode | | Nominal | Dataset code |
| RecType | | Physical quantity | Record type |
| Recyear | | Physical quantity | Year of sample |
| RecMonth | | Nominal | Month of sample collection |
| Plot | | Nominal | Field plot IDs |
| Burn | | Nominal | Burned (B) or unburned (UB) |
| Nutrient | | Code list | Fertilization treatment |
| BG | | Physical quantity | Betaglucosidase activity (nmol substrate / g dry soil / hr) |
| CBH | | Physical quantity | Cellobiohydrolase activity (nmol substrate / g dry soil / hr) |
| NAG | | Physical quantity | N-acetylglucosaminidase activity (nmol substrate / g dry soil / hr) |
| LAP | | Physical quantity | Leucyl aminopeptidase activity (nmol substrate / g dry soil / hr) |
| PHOS | | Physical quantity | Phosphatase activity (nmol substrate / g dry soil / hr) |
| PHX | | Physical quantity | Phenol oxidase activity (nmol substrate / g dry soil / hr) |
| GWC | | Physical quantity | Gravimetric water content (g water / g dry soil) |
| PercentC | | Physical quantity | Percent carbon in soil |
| PercentN | | Physical quantity | Percent nitrogen in soil |
