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Summary statistics of experiments (n = 105) included in the data synthesis
| Variable | Minimum | Mean | Maximum |
| Experiment length (no. of y) | 3 | 8 | 31 |
| No. of manipulations | 1 | 2 | 5 |
| Gamma diversity (no. of species) | 3 | 31 | 79 |
| Aboveground biomass (g m−2 y−1) | 1.5 | 349 | 1,415 |
| Mean annual precipitation (mm) | 183 | 714 | 1,526 |
| Mean annual temperature (°C) | −12 | 8 | 22 |
Methods discusses variable descriptions.
