@article{fdi:010040905,
  title = {{D}issolved organic matter fluorescence as a water-flow tracer in the tropical wetland of {P}antanal of {N}hecolandia, {B}razil},
  author = {{M}ariot, {M}. and {D}udal, {Y}. and {F}urian, {S}. and {S}akamoto, {A}. and {V}alles, {V}. and {F}ort, {M}. and {B}arbi{\'e}ro, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {N}hecolandia is a sub-region of the {B}razilian {P}antanal wetland, where saline and freshwater lakes coexist in close proximity. {M}easurements of dissolved organic carbon ({DOC}) content and analysis of fluorescence excitation-emission matrices ({EEM}) were conducted in an effort to characterize spatial variability in concentration and source of dissolved organic matter ({DOM}) and to further understand the hydrochemical functioning of this complex environment. {I}ncreasing p{H} under the influence of evaporation resulted in an increasing {DOC} solubility ranging from 50 to over 300 mg{C} {L}-1 in surface water. {S}pectrofluorescence characterisation indicates the presence of several families of dissolved organic matter (fulvic and humic-type and proteinaceous materials), which are related to the type of lake and its hydro-bio-geochemical functioning. {M}oreover, the fluorescence signatures from lake water {DOM} and from surrounding soil-water-extracted organic matter ({WEOM}) show strong similarities although some labile proteinaceous compounds disappeared during humification. {R}esults from the characterisation of {DOM} and {WEOM} not only suggest that spectrofluorescence is a reliable technique for the tracing of water flows, but also for the marking of the origin of organic horizons in this environment.},
  keywords = {spectrofluorecence ; organic matter ; tracing ; alkaline wetland ; pantanal ; {B}razil},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {388},
  numero = {1-3},
  pages = {184--193},
  ISSN = {0048-9697},
  year = {2007},
  DOI = {10.1016/j.scitotenv.2007.08.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040905},
}