@article{fdi:010083933,
  title = {{A}nthropogenic aquifer recharge effect on groundwater resources in an agricultural floodplain in {N}ortheastern {T}unisia : insights from geochemical tracers and geophysical methods},
  author = {{C}hekirbane, {A}. and {G}asmi, {O}. and {M}layah, {A}. and {G}abtni, {H}. and {K}hadhar, {S}. and {L}achaal, {F}. and {Z}ghibi, {A}. and {T}aupin, {J}ean-{D}enis},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this study, geochemical tracers and geophysical methods were combined to assess the anthropogenic aquifer recharge ({AAR}) processes within a small floodplain in {M}ornag plain, {NE} of {T}unisia. {F}rom a regional viewpoint, the aquifer is one of the most exploited because of the intensive agricultural and industrial activities in the region. {B}ased on geochemical data and hydrodynamic observations, stream-aquifer connection was evidently proven. {A}n {AAR} from the saline effluent rejected in the dry channel (the {W}adi) was detected in the downstream area of the {W}adi {E}l {H}ma plain. {I}sotopic tracers ({O}-18 and {H}-2) were effective tools to clarify the recharge processes in relation to the hill dam to detect the signature of the effluent near an installed check dam. {E}lectrical resistivity tomography ({ERT}) profiles were performed in the most salinized part of the plain in order to highlight the role of the {W}adi in {AAR}. {ERT} provided clear images of low resistivity horizons longitudinally and transversely to the {W}adi. {B}ecause groundwater is mainly used for irrigation in the {W}adi {E}l {H}ma plain, an assessment of its suitability for irrigation was performed based on a multi-criteria decision analysis, which revealed that, except the hill dam water and upstream groundwater, the remaining zones of the aquifer are providing water classified as doubtful to unsuitable for irrigation. {T}he results of this work highlight the water sustainability threat in the region and would warn decision-makers to control the {W}adi runoff and preserve it against any pollution source since it constitutes the principal inlet of any {AAR}.},
  keywords = {{A}nthropogenic aquifer recharge ; {G}eochemical tracers ; {ERT} ; {I}rrigation ; suitability index ; {TUNISIE} ; {MORNAG} {PLAINE} ; {EL} {HMA} {BASSIN}},
  booktitle = {},
  journal = {{N}atural {R}esources {R}esearch},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[20 p.]},
  ISSN = {1520-7439},
  year = {2022},
  DOI = {10.1007/s11053-021-09991-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083933},
}