Appendix 5. Mean and standard deviation of species richness of understory vegetation (herbaceous layer) by variable-retention harvesting types
| Year | 2010 | 2011 | 2012 | 2013 | 2014 | 2016 | 2017 | 2018 |
| Treatments |
| AR15H | 7.9±2.9 | 11.6±3.4 | 16.5±3.7 | 16.2±3.6 | 9.8±5.2 | 13.5±3.8 | 10.1±2.8 | 9.6±3.4 |
| AR15R | 8.6±2.8 | 10.9±3.1 | 12.4±3.7 | 15.9±4.9 | 13.3±5 | 18.9±5.4 | 14.1±4 | 14.9±4.1 |
| AR50H | 5.2±2.1 | 8.6±2.0 | 10.9±3.4 | 11.7±3.2 | 6.5±2.7 | 11.9±2.6 | 9.3±2.2 | 9.1±2.6 |
| AR50R | 5.4±1.7 | 6.5±2.1 | 7.9±2.2 | 8.8±2.9 | 7.4±2.3 | 8.0±2.5 | 7.7±2.5 | 6.9±2.4 |
| C | 7.0±3.3 | 7.4±3.5 | 7.7±3.2 | 8.4±3.5 | 7.4±3.2 | 7.8±3.5 | 6.8±3.1 | 5.8±3.0 |
| DR15 | 6.1±2.5 | 10.1±4.6 | 14.3±5.3 | 15.2±4.4 | 13.8±4.1 | 13.5±5.3 | 9.9±4.3 | 10.4±4.0 |
| DR50 | 6.6±2.8 | 9.5±3.8 | 13.5±5.3 | 13.9±5.2 | 13±4.4 | 11.2±4.3 | 8.8±3.8 | 8.9±3.3 |