| RecDate | | Date/time | Date gas exchange samples were collected (YYYY-MM-DD) |
| RecYear | | Physical quantity | Year of record |
| Watershed | | Nominal | Watershed |
| Shrub_id | | Physical quantity | Plot number at each site (1 to 20) |
| Treatment | | Nominal | Treatments of browsing (~50% removal of new meristematic growth), or control (no removal of plant material) |
| Sppcode | | Physical quantity | Species code |
| Genus | | Nominal | Taxa associated with plant composition and cover class |
| Species | | Nominal | Abbreviated species name |
| A_net | | Physical quantity | Net photosynthetic rate (µmole/m²/s) |
| Transpiration | | Physical quantity | Transpiration (mmol/m²/s) |
