Knowledge Base
 

Identification Code

PP00187

Project title

Study of vertical drainage system reclamation performance efficiency with linear interceptive location of wells in Lenin's collec-tive farm of Jetysay rayon .

Project location

The Republic of Kazakhstan, Chymkent oblast, Jetysay rayon, Lenin's collective farm.

Rubric

70.23.39; 70.21.39

Rubric (SIC ICWC)

01.45.01.10; 01.45

Project duration

1968-1978

Project manager

ZaynutdinovaN.Kh.., SPA SANIIRI The Republic of Uzbekistan, 700187, Tashkent, Karasu-4, 11

Summary

Studies are dedicated to soil salinity control and irrigated lands productivity increase by intensifying area drainability and salt removal from soils by ground water pumping on optimal regimes of their selection providing optimal soil water-salt regimes management under leaching irrigation regime during year. Relief is slightly undulated. Climate is continental. Ground water depth is 1-3 m, salinity 3-10 g/1 on north-west of massif, to 40 g/1 and more in its south part, sulfate-chloride and chloride-sulfate type. Soils are sandy loam, light and semi-loam, strongly saline. Irrigated area is 5350 ha (net), in command zone of Kirov main canal. On this plot 18 vertical drainage wells were constructed on depth 55-75 m. Stationary balance plots were established on area 100-250 ha provided with measurement equipment. In result of studies it was established in EPP conditions active water exchange zone under vertical drainage systems impact is expanded to depth 100 m, and salt exchange - on al top melkozem thickness (to 35-40 m). Set of water-reclamation measures was developed on increasing irrigated lands productivity and irrigation water effficiency, water saving as well as farms profitability.

Key words

Soils; reclamation state; vertical drainage; water-salt balance; water-salt regime; leaching irrigation regime; productivity; cotton.

Bibliography

Authors - Reshetkina N.M., Yakubov Kh.I. Title - "Vertical drainage" M., Kolos, 1978 In monograph principles of irrigated areas classification according to reclamation complexity, option of perfect drainage types, main requirements to initial data reception for designing desalinizating measures and water-salt processes regularities on background of vertical drainage are given. System analysis of field study results of soil desalinization process and water use improvement under leaching and leaching irrigation regime achieved in experimental-pilot projects and large irrigated massifs were carried out. Basic principles of forming vertical drainage systems pumping regime including ground water use for irrigation allowing creation of optimal reclamation regimes on irrigated lands.