Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. V
Written by Recep ÇAKIR
Evaluations have been done on the basis of data the author obtained during his stage in Turkmenistan as an expert of Islamic Development Bank on Water Resources Development and Effective Water Use in the country. Drainage and tail water discharge data evaluated in the paper are collected from different drainage system structures constructed in different Willayets (Provinces) of Turkmenistan. As a result of the investigations the total volume of the drainage water was estimated as 5.6 – 6.0 km3 per year. About 1.2 km3 volume of the drainage water, as in the case of some collectors in Ahalskii and Dashoguzkii Region is with low salinity level and suitable for the purposes of irrigation. Relatively low salinity levels in the ranges of 2-2.6 g/l or 3.13- 4.06 dS/m were determined in waters of Gaurskii Main Collector, Ashgabatskii Collector, Geok-Tepinskii Drainage in Ahalskii Region of Turkmenistan. It was concluded that application of drainage waters with relatively law salinity level and ground waters for irrigation could increase the yearly irrigation water volume of the country from 26 km3 to approximately 30-32 km3. In addition, as a consequence these measures will promote enlargement of the irrigated lands in the country and will permit more agricultural food production.
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