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Biomass accumulation ratio (BAR, biomass/ total NPP of tree) in different tree components of Tarai Shisham forests
| Age of forests (years) | |||
| Component | 5 | 10 | 15 |
| Bole wood | 2·96 | 4·17 | 4·11 |
| Bole bark | 0·60 | 0·79 | 0·74 |
| Branch | 0·43 | 0·60 | 0·62 |
| Twig | 0·20 | 0·29 | 0·31 |
| Leaf | 0·35 | 0·37 | 0·31 |
| Reproductive parts | 0·04 | 0·07 | 0·09 |
| Stump root | 0·62 | 0·75 | 0·69 |
| Lateral roots | 0·23 | 0·34 | 0·35 |
| Fine roots | 0·08 | 0·12 | 0·13 |
| Total | 5·51 | 7·50 | 7·35 |
