@article{fdi:010092058,
  title = {{S}alt marsh litter decomposition varies more by litter type than by extent of sea-level inundation},
  author = {{A}rnaud, {M}. and {B}akhos, {M}. and {R}umpel, {C}. and {D}ignac, {M}. {F}. and {B}ottinelli, {N}icolas and {N}orby, {R}. {J}. and {G}eairon, {P}. and {D}eborde, {J}. and {K}ostyrka, {P}. and {G}ernigon, {J}. and {L}emesle, {J}. {C}. and {P}olsenaere, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}alt marshes are among the most efficient blue carbon sinks worldwide. {T}he fate of this carbon is uncertain due to limited knowledge about organic matter ({OM}) decomposition processes under sea-level rise. {I}n an in-situ manipulative experiment, we compared salt marsh {OM} decomposition and quality across simulated sea-level scenarios (by modifying the inundation) and litter types (absorptive root, fine transportive root, leaves, and rhizomes of {H}alimione portulacoide) for 170 days. {T}he litter decomposition varied only between the inundation treatments with the longest and shortest durations, while the decomposition differed significantly across litter types, with absorptive roots releasing up to 40% less carbon than other litters. {C}hanges in lignin composition were minimal for absorptive roots and were unaffected by sea-level rise scenarios. {O}ur study suggests that (i) current projections of sea-level rise are unlikely to decrease litter decomposition; (ii) separating litter types might lead to better assessments of salt marshes' {OM} dynamics. {G}lobal estimates of salt marsh organic matter decomposition dynamics can be improved by taking into account the differences in decomposition rates among litter types, according to an in situ manipulative experiment in a {F}rench temperate salt marsh},
  keywords = {},
  booktitle = {},
  journal = {{C}ommunications {E}arth and {E}nvironment},
  volume = {5},
  numero = {1},
  pages = {686 [11 p.]},
  year = {2024},
  DOI = {10.1038/s43247-024-01855-0},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092058},
}