Table S1. The root collar diameter (RCD), height, diameter at breast height (DBH), basal area, stem volume and biomass, and total carbon stock of Larix kaempferi trees planted in harvested L. kaempferi and Pinus rigida plantations.
| Year | Pre-stand | Site | RCD (mm) | Height (m) | DBH (em) | Basal area (m2 ha−1) | Stem volume (cm3 tree−1) | Stem biomass (kg tree−1) | Stem biomass (kg ha−1) | Total C in tree (t C ha−1) |
| 2015(7-year-old) | Larix kaempferi | CC | 76.0 (3.3)ab | 5.25 (0.16)b | - | - | 17,813 (l,681)a | 8.1 (0.8)a | - | - |
| GC | 69.8 (1.9)b | 4.45 (0.09)c | - | - | 12,305 (822)a | 5.6 (0.4)a | - | - |
| Pinus rigida | WJ | 77.4 (2.3)a | 4.89 (0.13)b | - | - | 17,165 (l,310)a | 7.8 (0.6)a | - | - |
| GP | 79.2 (1.5)a | 6.09 (0.10)a | - | - | 20,929 (l,038)a | 9.5 (0.5)a | - | - |
| 2021(13-year-old) | Larix kaempferi | CC | 147.0 (3.3)a | 11.70 (0.17)a | 12.7 (2.6)a | 17.9(0.6)ab | - | 27.4 (1.7)a | 35.8 (1.6)a | 71.9 (1.0)a |
| GC | 122.0 (2.7)b | 9.97 (0.15)b | 9.6 (0.2)b | 14.1(0.8)bc | - | 12.4 (0.6)b | 22.1 (2.1)b | 45.4 (3.2)c |
| Pinus rigida | WJ | 156.0 (3.5)a | 11.98 (0.20)a | 12.2 (0.2)a | 13.8(1.4)c | - | 24.0 (3.9)a | 24.2 (1.0)b | 46.0 (1.7)c |
| GP | 116.5 (2.1)b | 10.28 (0.1 l)b | 9.2 (0.2)b | 19.6(0.4)a | - | 11.4 (0.6)b | 31.1 (0.7)a | 60.9 (1.2)b |