@article{fdi:010068802,
  title = {{S}oil carbon stocks and burial rates along a mangrove forest chronosequence ({F}rench {G}uiana)},
  author = {{M}archand, {C}yril},
  editor = {},
  language = {{ENG}},
  abstract = {{M}angroves provide a range of important ecosystem services, notably being efficient blue carbon sinks. {I}n addition to their {CO}2 fixing ability, these coastal tropical forests can store large amount of carbon in their soils due to waterlogging inducing slow rates of organic matter ({OM}) decomposition. {T}he {F}rench {G}uiana coastline is a highly dynamic environment, characterized by a series of migrating mudbanks. {W}ithin this specific sedimentological context, only {A}. germinans propagules can develop at the highest elevation of mudbanks that are stabilized only for a few decades before being eroded. {A}s a result, a clear zonation pattern, with mangrove stands of different ages paralleling the shoreline, allows the study at the same time of {A}. germinans forests from pioneer to mature and senescent stands. {T}he unique characteristic of this system is the isolation of the older mangroves from the sea, being situated more than 2 km from the shoreline, which limits sedimentation and allochthonous inputs. {W}ithin the studied chronosequence, soil carbon stocks and carbon burial rates of each mangrove stand were determined. {T}he thickness of the pedogenetic layer, enriched in autochthonous {OM}, reached an asymptote (similar to 45 cm) for the mixed mature and senescent forests (>40 years old), probably as a result of the asymptote reached by the net primary productivity ({NPP}) and low sedimentation rates. {T}he organic carbon stock in the pedogenetic layers increased linearly with forest age, from 4 to 107 {M}g {OC} ha (-1) in pioneer and senescent stages, respectively. {C}onsequently, considering only the pedogenetic layers, enriched with the {OM} derived from the current forest, soil organic carbon ({SOC}) stocks are limited. {I}t is suggested that tidal export of the {NPP} may balance low mineralization rates induced by waterlogging, at least for the stand the closest to the sea. {T}he mean carbon burial rate for this system was 2.3 {M}g {OC} ha(-1) yr(-1), with values ranging from 0.72 to 4.86 {M}g {OC} ha (-1) yr(-1) depending on forest age and position of the stand in the tidal zone. {T}he latter, either promoting tidal flushing and tidal pumping on the seaward side of the mangrove, or the development of associated mangrove species on the landward side due to freshwater proximity and low sedimentation rates, influenced organic accumulation in soils.},
  keywords = {{M}angrove ; {C}hronosequence ; {O}rganic carbon stocks ; {C}arbon burial rates ; {B}iomarkers ; {F}rench {G}uiana ; {GUYANE} {FRANCAISE}},
  booktitle = {},
  journal = {{F}orest {E}cology and {M}anagement},
  volume = {384},
  numero = {},
  pages = {92--99},
  ISSN = {0378-1127},
  year = {2017},
  DOI = {10.1016/j.foreco.2016.10.030},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068802},
}