| RecYear | | Physical quantity | Year of sample |
| RecDate | | Date/time | Date that data was collected |
| CoreType | | Code list | Type of soil core (shallow vs. deep). |
| DeepCoreRep | | Physical quantity | Replicate for deep soil cores only |
| Shelter | | Physical quantity | Shelter number (1-14) |
| BurnTrt | | Code list | Burn treatment (1-yr burn vs. 4-yr burn). |
| DroughtTrt | | Code list | Drought treatment (control vs. drought) |
| Depth | | Physical quantity | Soil depth |
| dD | | Physical quantity | Hydrogen stable isotopic signature of soil water |
| d18O | | Physical quantity | Oxygen stable isotopic signature of soil water |
