@article{fdi:010085623,
  title = {{G}roundwater-driven nutrient inputs to coastal lagoons : the relevance of lagoon water recirculation as a conveyor of dissolved nutrients},
  author = {{R}odellas, {V}. and {S}tieglitz, {T}homas and {A}ndrisoa, {A}. and {C}ook, {P}.{G}. and {R}aimbault, {P}. and {T}amborski, {J}.{J}. and {V}an {B}eek, {P}. and {R}adakovitch, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}valuating the sources of nutrient inputs to coastal lagoons is required to understand the functioning of these ecosystems and their vulnerability to eutrophication. {W}hereas terrestrial groundwater processes are increasingly recognized as relevant sources of nutrients to coastal lagoons, there are still limited studies evaluating separately nutrient fluxes driven by terrestrial groundwater discharge and lagoon water recirculation through sediments. {I}n this study, we assess the relative significance of these sources in conveying dissolved inorganic nutrients ({NO}3-, {NH}4+ and {PO}43-) to a coastal lagoon ({L}a {P}alme lagoon; {F}rance, {M}editerranean {S}ea) using concurrent water and radon mass balances. {T}he recirculation of lagoon water through sediments represents a source of {NH}4+ (1900-5500 mol d(-1)) and {PO}43- (22-71 mol d(-1)), but acts as a sink of {NO}3-. {E}stimated karstic groundwater-driven inputs of {NO}3-, {NH}(4)(+)and {PO}43- to the lagoon are on the order of 200-1200, 1-12 and 1.5-8.7 mol d(-1), respectively. {A} comparison between the main nutrient sources to the lagoon (karstic groundwater, recirculation, diffusion from sediments, inputs from a sewage treatment plant and atmospheric deposition) reveals that the re-circulation of lagoon water through sediments is the main source of both dissolved inorganic nitrogen ({DIN}) and phosphorous ({DIP}) to {L}a {P}alme lagoon. {T}hese results are in contrast with several studies conducted in systems influenced by terrestrial groundwater inputs, where groundwater is often assumed to be the main pathway for dissolved inorganic nutrient loads.{T}his work highlights the important role of lagoon water recirculation through permeable sediments as a major conveyor of dissolved nutrients to coastal lagoons and, thus, the need fora sound understanding of the recirculation-driven nutrient fluxes and their ecological implications to sustainably manage lagoonal ecosystems.},
  keywords = {{FRANCE} ; {MEDITERRANEE} ; {LA} {PALME} {LAGUNE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {642},
  numero = {},
  pages = {764--780},
  ISSN = {0048-9697},
  year = {2018},
  DOI = {10.1016/j.scitotenv.2018.06.095},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085623},
}