@article{fdi:010077442,
  title = {{I}mplications of groundwater development and seawater intrusion for sustainability of a {M}editerranean coastal aquifer in {T}unisia},
  author = {{Z}ghibi, {A}. and {M}irchi, {A}. and {Z}ouhri, {L}. and {T}aupin, {J}ean-{D}enis and {C}hekirbane, {A}. and {T}arhouni, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}unisia relies extensively on coastal groundwater resources that are pumped at unsustainable rates to support irrigated agriculture, causing groundwater drawdown and water quality problems due to seawater intrusion. {I}t is imperative for the country to regulate future groundwater allocations and implement conservation strategies based on robust hydrogeological assessments to alleviate the adverse impacts of groundwater depletion. {W}e developed a 3{D} transient density-dependent groundwater model by coupling {MODFLOW}-2000 and {MT}3{DMS} to improve understanding of seawater intrusion into the {K}orba aquifer in {T}unisia. {R}esults indicate that groundwater overexploitation since 1965 induced 5.15 {M}m(3)/year of seawater inflow while reducing submarine discharge into the sea by about 9.74 {M}m(3)/year as compared to the steady state water budget in 1965. {P}rojecting withdrawals from 2014 up to 2050 results in a slow but extensive groundwater table decline forming a cone of depression 15 m below sea level. {T}he seawater wedge under this business-as-usual scenario is expected to reach 1.8 km from the shoreline, causing significant mixing of the {TDS}-rich seawater in the aquifer system. {T}he cone of depression under a 25% increase in groundwater withdrawal drops to about 20 m below sea level while the saltwater front reaches 2.5 km inland. {C}ountering the seawater intrusion problem requires reducing groundwater pumping by 17 {M}m(3)/year to push back the saltwater front along the coastline by about 25% over a 43-year period. {A}pplication of the presented generic groundwater simulation framework guides developing management strategies to mitigate seawater intrusion in the {K}orba coastal aquifer and similar areas.},
  keywords = {{S}eawater intrusion ; {C}oastal aquifer ; {N}umerical simulation ; {G}roundwater management ; {T}unisia ; {TUNISIE} ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {},
  journal = {{E}nvironmental {M}onitoring and {A}ssessment},
  volume = {191},
  numero = {11},
  pages = {art. 696 [23 p.]},
  ISSN = {0167-6369},
  year = {2019},
  DOI = {10.1007/s10661-019-7866-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077442},
}