Table 1. Litterfall, carbon and nitrogen inputs of litterfall components in Cryptomeria japonica and Chamaecyparis obtusa plantations.
| Components | Plantation | Litterfall | C input | N input |
| (kg ha−1 yr−1) |
| Needle | C. japonica | 4,087 (1,168) | 2,016 (573) | 14.96 (5.08) |
| C. obtusa | 5,024 (809) | 2,557 (417) | 14.17 (2.24) |
| Branches | C. japonica | 15 (15) | 0 (0) | 0 (0) |
| C. obtusa | 77 (42) | 18 (32) | 0.35 (0.06) |
| Flowers | C. japonica | 593 (83)* | 261 (29)* | 8.39 (1.24)* |
| C. obtusa | 158 (44) | 82 (22) | 2.49 (0.62) |
| Seeds | C. japonica | 372 (21)* | 183 (12) | 5.58 (0.65) |
| C. obtusa | 247 (43) | 132 (22) | 3.46 (0.65) |
| Cone | C. japonica | 1,038 (300) | 503 (161) | 14.97 (5.18)* |
| C. obtusa | 667 (170) | 331 (86) | 4.52 (1.28) |
| Miscellaneous | C. japonica | 203 (109)* | 97 (54)* | 3.03 (1.49)* |
| C. obtusa | 19 (8) | 8 (3) | 0.19 (0.10) |
| Total | C. japonica | 6,358 (1,487) | 3,054 (736) | 46.93 (10.50) |
| C. obtusa | 6,194 (959) | 3,129 (492) | 25.17 (4.22) |