Partitioning of respired CO₂ in newly sprouted Moso bamboo culms.

ABSTRACT: Stem respiration (R _s) plays a vital role in ecosystem carbon cycling. However, the measured efflux on the stem surface (E _s) is not always in situ R _s but only part of it. A previously proposed mass balance framework (MBF) attempted to explore the multiple partitioning pathways of R _s, including sap-flow-transported and internal storage of R _s, in addition to E _s. This study proposed stem photosynthesis as an additional partitioning pathway to the MBF. Correspondingly, a double-chamber apparatus was designed and applied on newly sprouted Moso bamboo (Phyllostachys edulis) in leafless and leaved stages. R _s of newly sprouted bamboo were twice as high in the l

SUBMITTER: Ye C 

PROVIDER: S-EPMC10158728 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature