Knowledge Base

Identification Code


Project title

Study of vertical drainage operation regime in Pahtaaral rayon for ecological-reclamation processes stabilization on irrigated lands

Project location

Kazakhstan, Chimkent oblast


70.03.21; 70.21.39

Rubric (SIC ICWC)


Project duration


Project manager

N.Gaipnazarov, SANIIRI, Uzbekistan, 700187, Tashkent, Karasu-4,11


Study is directed to assessment of vertical drainage operation regime, crop irrigation ragime, irrigation water quality on large irrigation massif (Pahtaaral rayon) Climate is sharply continental. Relief is flat. Ground water table is 2.2-2.5 m (growing period), 3.0-3.5m (fall), water salinity is 1.0-5.0 g/l. Soil-sandy loam, loam (light, medium and heavy), saline. Water supply is executed from Kirov canal; inter-farm canal efficiency is 0.9-0.95, in-farm canal 0.75-0.8. 280 vertical wells have been constructed. Open horizontal drains (depth 2.5m) disposes pumped water. Recommendations    are    developed    for    reclamation    regime improvement.

Key words

Vertical drainage, irrigated lands, salination, disposal, cotton


3. Authors: Kh.Yakubov, I.Ikramov Title: "Principles of vertical drainage operation correction for reclamation strengthening", SANIIRI, 1985 Common principles of vertical drainage operation correction on large systems have been developed.