Both Moso bamboo (Phyllostachys pubescens) and tree forests have a large biomass; they are considered to play an important role in ecosystem carbon budgets. The scaling relationship between individual whole-shoot (i.e., aboveground parts) respiration and whole-shoot mass provides a clue for comparing the carbon budgets of Moso bamboo and tree forests. However, nobody has empirically demonstrated whether there is a difference between these forest types in the whole-shoot scaling relationship. We developed whole-shoot chambers and measured the shoot respiration of 58 individual mature bamboo shoots from the smallest to the largest in a Moso bamboo forest, and then compared them with that of 254 tree shoots previously measured. For 30 bamboo shoots, we measured the respiration rate of leaves, branches, and culms. We found that the scaling exponent of whole-shoot respiration of bamboo fitted by a simple power function on a log–log scale was 0.843 (95 % CI 0.797–0.885), which was consistent with that of trees, 0.826 (95 % CI 0.799–0.851), but higher than 3/4, the value typifying the Kleiber’s rule. The respiration rates of leaves, branches, and culms at the whole-shoot level were proportional to their mass, revealing a constant mean mass-specific respiration of 1.19, 0.224, and 0.0978 µmol CO₂ kg^− 1 s^− 1, respectively. These constant values suggest common traits of organs among physiologically integrated ramets within a genet. Additionally, the larger the shoots, the smaller the allocation of organ mass to the metabolically active leaves, and the larger the allocation to the metabolically inactive culms. Therefore, these shifts in shoot-mass partitioning to leaves and culms caused a negative metabolic scaling of Moso bamboo shoots. The observed convergent metabolic scaling of Moso bamboo and trees may facilitate comparisons of the ecosystem carbon budgets of Moso bamboo and tree forests.

毛竹（Phyllostachys pubescens ）) 和林木的生物量很大；它们被认为在生态系统碳预算中发挥重要作用。个体全枝（即地上部分）呼吸和全枝质量之间的比例关系为比较毛竹林和乔木林的碳收支提供了线索。然而，没有人凭经验证明这些森林类型在全枝尺度关系中是否存在差异。我们开发了全芽室，测量了毛梭竹林中从最小到最大的 58 根成熟竹笋的芽呼吸，然后将它们与之前测量的 254 根树芽进行了比较。对于 30 个竹笋，我们测量了叶子、树枝和秆的呼吸速率。我们发现，在 log-log 尺度上，通过简单幂函数拟合竹子全枝呼吸的尺度指数为 0.843（95 % CI 0.797-0.885），与树木的 0.826（95 % CI 0.799）一致–0.851)，但高于代表克莱伯规则的值 3/4。整个枝条水平的叶、枝和秆的呼吸速率与其质量成正比，显示出恒定的平均质量比呼吸，分别为 1.19、0.224 和 0.0978 µmol CO₂ kg ^{- 1}  s ^{- 1}，分别。这些常数值表明了基因内生理整合分株中器官的共同特征。此外，枝条越大，分配给代谢活跃的叶子的器官质量越小，分配给代谢不活跃的茎秆的比例就越大。因此，这些芽质量分配到叶子和秆的变化导致了毛竹笋的负代谢缩放。观察到的毛竹和树木的收敛代谢尺度可能有助于比较毛竹和林木的生态系统碳收支。