@article{fdi:010073072,
  title = {{T}idal variability of {CO}2 and {CH}4 emissions from the water column within a {R}hizophora mangrove forest ({N}ew {C}aledonia)},
  author = {{J}acotot, {A}. and {M}archand, {C}yril and {A}llenbach, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e performed a preliminary study to quantify {CO}2 and {CH}4 emissions from the water column within a {R}hizophora spp. mangrove forest. {M}ean {CO}2 and {CH}4 emissions during the studied period were 3.35 +/- 3.62 mmol{C} m(-2) h(-1) and 18.30 +/- 27.72 mu mol{C} m(-2) h(-1) , respectively. {CO}2 and {CH}4 emissions were highly variable and mainly driven by tides (flow/ebb, water column thickness, neap/spring). {I}ndeed, an inverse relationship between the magnitude of the emissions and the thickness of the water column above the mangrove soil was observed. delta({CO}2)-{C}-13 values ranged from -26.88 parts per thousand to -8.6 parts per thousand, suggesting a mixing between {CO}2-enriched pore waters and lagoon incoming waters. {I}n addition, {CO}2 and {CH}4 emissions were significantly higher during ebb tides, mainly due to the progressive enrichment of the water column by diffusive fluxes as its residence time over the forest floor increased. {E}ventually, we observed higher {CO}2 and {CH}4 emissions during spring tides than during neap tides, combined to depleted delta({CO}2)-{C}-13 values, suggesting a higher contribution of soil-produced gases to the emissions. {T}hese higher emissions may result from higher renewable of the electron acceptor and enhanced exchange surface between the soil and the water column. {T}his study shows that {CO}2 and {CH}4 emissions from the water column were not negligible and must be considered in future carbon budgets in mangroves.},
  keywords = {{W}ater to atmosphere fluxes ; {G}reenhouse gas ; {B}lue carbon ; {C}arbon dioxide isotope ; {S}emi-arid mangrove forest ; {NOUVELLE} {CALEDONIE} ; {PACIFIQUE} {SUD}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {631-632},
  numero = {},
  pages = {334--340},
  ISSN = {0048-9697},
  year = {2018},
  DOI = {10.1016/j.scitotenv.2018.03.006},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073072},
}