@article{PAR00013329,
  title = {{S}olute transport dynamics in small, shallow groundwater-dominated agricultural catchments : insights from a high-frequency, multisolute 10 yr-long monitoring study},
  author = {{A}ubert, {A}. {H}. and {G}ascuel-{O}doux, {C}. and {G}ruau, {G}. and {A}kkal, {N}. and {F}aucheux, {M}. and {F}auvel, {Y}. and {G}rimaldi, {C}. and {H}amon, {Y}. and {J}affrezic, {A}. and {L}ecoz-{B}outnik, {M}. and {M}ol{\'e}nat, {J}{\'e}r{\^o}me and {P}etitjean, {P}. and {R}uiz, {L}. and {M}erot, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}igh-frequency, long-term and multisolute measurements are required to assess the impact of human pressures on water quality due to (i) the high temporal and spatial variability of climate and human activity and (ii) the fact that chemical solutes combine short-and long-term dynamics. {S}uch data series are scarce. {T}his study, based on an original and unpublished time series from the {K}ervidy-{N}aizin headwater catchment ({B}rittany, {F}rance), aims to determine solute transfer processes and dynamics that characterise this strongly human-impacted catchment. {T}he {K}ervidy-{N}aizin catchment is a temperate, intensive agricultural catchment, hydrologically controlled by shallow groundwater. {O}ver 10 yr, five solutes (nitrate, sulphate, chloride, and dissolved organic and inorganic carbon) were monitored daily at the catchment outlet and roughly every four months in the shallow groundwater. {T}he concentrations of all five solutes showed seasonal variations but the patterns of the variations differed from one solute to another. {N}itrate and chloride exhibit rather smooth variations. {I}n contrast, sulphate as well as organic and inorganic carbon is dominated by flood flushes. {T}he observed nitrate and chloride patterns are typical of an intensive agricultural catchment hydrologically controlled by shallow groundwater. {N}itrate and chloride originating mainly from organic fertilisers accumulated over several years in the shallow groundwater. {T}hey are seasonally exported when upland groundwater connects with the stream during the wet season. {C}onversely, sulphate as well as organic and inorganic carbon patterns are not specific to agricultural catchments. {T}hese solutes do not come from fertilisers and do not accumulate in soil or shallow groundwater; instead, they are biogeochemically produced in the catchment. {T}he results allowed development of a generic classification system based on the specific temporal patterns and source locations of each solute. {I}t also considers the stocking period and the dominant process that limits transport to the stream, i. e. the connectivity of the stocking compartment. {T}his mechanistic classification can be applied to any chemical solute to help assess its origin, storage or production location and transfer mechanism in similar catchments.},
  keywords = {{FRANCE}},
  booktitle = {},
  journal = {{H}ydrology and {E}arth {S}ystem {S}ciences},
  volume = {17},
  numero = {4},
  pages = {1379--1391},
  ISSN = {1027-5606},
  year = {2013},
  DOI = {10.5194/hess-17-1379-2013},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00013329},
}