Journal of Geography and Geology; Vol. 9, No. 2; 2017 ISSN 1916-9779 E-ISSN 1916-9787 Published by Canadian Center of Science and Education The Future of Freshwater in Shatt Al- Arab River (Southern Iraq) Safaa A. R. Al-Asadi1 1 Department of Geography, Collage of Education, University of Basrah, Basrah- Iraq Correspondence: Safaa A. R. Al-Asadi, Department of Geography, Collage of Education, University of Basrah, Basrah- Iraq. E-mail:
[email protected] Received: May 6, 2017 Accepted: May 16, 2017 Online Published: May 27, 2017 doi:10.5539/jgg.v9n2p24 URL: https://doi.org/10.5539/jgg.v9n2p24 Abstract This study uses data from the current rate of population growth, agricultural development and effects of climate change to estimate the future of water demand and the amount of available water in the Shatt Al-Arab River basin. The Shatt Al-Arab River will be facing a freshwater deficit as a result of the decrease of water received from its tributaries. Currently, the river receives freshwater from the Tigris only, as a result to dam construction projects on the tributaries remaining. In 2040, it is expected that the freshwater from the Tigris will not be available to the Shatt Al-Arab; therefore the intrusion of seawater into the river will increase. This may cause a gradual change of water quality in the river from freshwater to seawater. When the Shatt Al-Arab River loses freshwater from all its tributaries the seawater will progress further from Persian Gulf towards the upstream. Keywords: Water deficit, water demand, water quality, seawater intrusion, Tigris and Euphrates, Shatt Al-Arab 1.