@article{fdi:010060577,
  title = {{E}xport of {C}-13-depleted dissolved inorganic carbon from a tidal forest bordering the {A}mazon estuary},
  author = {{A}bril, {G}. and {D}eborde, {J}. and {S}avoye, {N}. and {M}athieu, {F}. and {M}oreira {T}urcq, {P}atricia and {A}rtigas, {F}. and {M}eziane, {T}. and {T}akiyama, {L}. {R}. and de {S}ouza, {M}. {S}. and {S}eyler, {P}atrick},
  editor = {},
  language = {{ENG}},
  abstract = {{T}idal wetlands play a significant role in the coastal carbon cycle and exchange material with the atmosphere and coastal ocean. {H}ere, we report on changes in dissolved inorganic carbon speciation and isotopic composition throughout a 24 h cycle (2 tidal cycles) in {F}eb. 2007 in a channel connecting the {A}mazon estuary to the basin of a tidal forest. {A}t this site, tropical forest soils are inundated at high tide by estuarine freshwater, and temporal concentration changes in the channel reflect exchanges between the forest and estuary. {O}ur data show an export of dissolved inorganic carbon ({DIC}) in the form of excess {CO}2 and, to a much lesser extent, {CH}4. {H}owever, the tidal forest traps suspended sediments. {M}ixing plots of {DIC} versus conductivity showed that the {DIC} originated from the tidal forest soil, with a negligible contribution from the local watershed. {E}volution of the isotopic signature of {DIC} reveals a {C}-13-depleted source (-56.9 +/- 3.3 parts per thousand), presumably originating from a dominant methanogenic pathway of carbon mineralization followed by almost complete {CH}4 oxidation in the organic clay-rich freshwater soil.},
  keywords = {carbon ; tidal wetland ; {A}mazon ; {AMAZONIE} ; {AMAZONE} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{E}stuarine {C}oastal and {S}helf {S}cience},
  volume = {129},
  numero = {},
  pages = {23--27},
  ISSN = {0272-7714},
  year = {2013},
  DOI = {10.1016/j.ecss.2013.06.020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060577},
}