Changes in Water Quality of Amu-Darya River and Ground Water in Karakalpakstan, Uzbekistan

Yoshiko KAWABATA; Vyacheslav APARIN; Masahiro NAGAI; Yoshikazu FUJII; Masaaki YAMADA; Tomoyasu HIRANO; Siaw ONWONA-AGYEMAN; Yokio KATAYAMA

doi:10.14976/jals.25.3_125

Session V: Water resources management in arid and semiarid areas

Changes in Water Quality of Amu-Darya River and Ground Water in Karakalpakstan, Uzbekistan

Yoshiko KAWABATA, Vyacheslav APARIN, Masahiro NAGAI, Yoshikazu FUJII, Masaaki YAMADA, Tomoyasu HIRANO, Siaw ONWONA-AGYEMAN, Yokio KATAYAMA

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Keywords: Amudarya River, Ecology, Ground water, Uzbekistan, Water quality

JOURNAL FREE ACCESS

2015 Volume 25 Issue 3 Pages 125-128

DOI https://doi.org/10.14976/jals.25.3_125

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Abstract

The Aral Sea Problem is now regarded as one of the serious environmental problems in the world. The decrease in Aral Sea area was caused by irrigated agriculture on a large scale which started in the 1950’s, especially in the Aral Sea basin. As the result, many villages were built in the area and people started production activities such as cotton growing, wheat and vegetables. The gradual climate change over the centuries was accelerated by the ecological disaster of the Aral Sea which took place in the late 20th century in Aral Sea basin, especially in Karakalpakstan. Ground water or river water is the main source of drinking water in this basin. We researched changes in water quality over the period from 2008. In these studies, we compared the trends in EC values of Amu-Darya water and ground water until 2011.

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