| Variables | Statistics | BACK |
| Group | Variable | Units | Description |
|---|---|---|---|
| Resource use | PNUE | μmol mol-1 s-1 | Photosynthetic nitrogen use efficiency; photosynthetic rate divided by leaf nitogen concent |
| Resorption_N | % | Nitrogen resorption efficiency of leaves | |
| MRT_leafN | year | Mean residence time of leaf nitrogen | |
| NUE | Nitrogen use efficiency calculated as inverse of leaf litter N content | ||
| N_leaf_lit | mg g-1 | N content of leaf litter fall | |
| δ15N_leaf | ‰ | Stable isotop 15N:14N ratio in leaves | |
| Longevity_leaf | year | Leaf longevity | |
| Longevity_froot | year | Fineroot (<2mm) longevity |