Assessment of the Salinization Process at the Coastal Area with Hydrogeochemical Tools and Geographical Information Systems (GIS): Selcuk Plain, Izmir, Turkey

Somay M. A., GEMİCİ Ü.

WATER AIR AND SOIL POLLUTION, cilt.201, sa.1-4, ss.55-74, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 201 Sayı: 1-4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s11270-008-9927-1
  • Dergi Adı: WATER AIR AND SOIL POLLUTION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.55-74
  • Anahtar Kelimeler: Salinization, Hydrogeochemistry, Environmental Isotopes, GIS, Izmir, Turkey, SALINE GROUNDWATERS, MENDERES-MASSIF, AQUIFER, ISOTOPE, ORIGIN, GEOCHEMISTRY, EXCHANGE, VICTORIA, FRANCE, ISLAND
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The salinization process was investigated with hydrogeochemical tools to evaluate the origin of salinity in the Selcuk Plain. Na/Cl and Cl/Br molar ratios of coastal zone that covers an alluvial aquifer, karstic discharges, and a wetland are similar to the local seawater ratio. According to mixing ratios, seawater addition can reach 9-18% in both seasons at the coastal zone especially in karstic springs that are a kind of seawater-freshwater mixing points. A thematic map of the Salinization zone was constructed for the Selcuk Plain using geographical information system tools with different parameters such as major ion ratios, EC values, mixing ratios, and sodium adsorption ratio values. High correlation between Cl and Br, B, Li and Sr explains the salinization process that comes from marine intrusion. The delta O-18 and delta D composition of water samples varies between -6.7 parts per thousand and -2.9 parts per thousand; -37 parts per thousand and -20 parts per thousand, respectively. The coastal zone waters are plotted on the mixing line due to the effects of the salinization process in the plain.