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Identification Code |
PP00166 |
Project title |
Development
of effective vertical drainage schemes on Atbash area by
methods of geofiltration modeling. |
Project location |
The
Kyrgyz Republic, Chu oblast, Moscow, Sokuluk, and Atabash rayons (irrigation systems of canals Sovkhozny,
Atabash and ZBChK). |
Rubric |
70.23.39; 28.17.23 |
Rubric (SIC ICWC) |
01.45.01.10 |
Project duration |
1986-1992 |
Project manager |
Litvak
R.G., KyrgNIIGiM The Kyrgyz Republic, 720055, Bishkek, Toktonaliyev's str., 4. |
Summary |
Studies
on pilot plots are dedicated to mathematical modeling approaches
of different vertical drainage schemes on the background
of new irrigated lands and option of the most effective
variants of Atabash area draining. Climate is continental.
Relief is plain. Ground water table is from 1-2 m in seepage
zone to 3 m in ground water transit zone. Salinity degree
is within 0.2-10 g/1, chemical composition - soda, soda-sulfate,
sulfate, rarely chloride type. Soils - northern gray desert,
meadow, meadow-wetland, salts, solonetz, loess-like loam,
semi-loam and heavy loam with sulfate salinity. Gross area
of investigated district is 232 th.ha, from them irrigated
- 112.6 th. ha, new introduced - 46.9 th.ha., irrigated
under reconstruction - 91 th.ha, land use efficiency 0.85.
There are 3 irrigation canals on area - Sovkhozny, Atbash
and ZBChK. Specific length of irrigation network is 17.5-25.4
m/ha. Area drainability is insufficient. 3 pilot plots are
considered: "Manas", "Jangy-Pakhta",
"Lesnoye". Salinity of pumped from vertical drainage
wells water is less than 1 g/1 on these plots. Carried out
studies allowed to emphasize the most effective schemes
of drainage measures to protect new introduced and old
irrigated lands under several variants of irrigation development,
filtration parameters of aquifer were defined, and assessment
of reclamation effect under pumping. |
Key words |
Modeling; vertical
drainage |
Bibliography |
1.
Authors - Nemaltzeva E.I., Kaplinsky M.I. Title - "Use
of permanently working geofiltration models in information-advising
systems of water-economic objects' design" "Perfection
of irrigation systems automation", thesis of report
on all-union STC in Kherson, M., 1987. Basic provisions
are given on use of permanently working geofiltration models
in information-advising systems of water-economic objects'
design. Results of forecasting ground water table fluctuations
and ground water balance components under modeling different
variants of irrigation and draining development of irrigation
systems of ZBChK, Sovkhozny and Atbash canals in Chu valley
are described. Several options of new irrigated lands introduction
as well as reconstruction of old lands and 3 options of
vertical drainage wells' location and operation are considered.
2. Authors - Litvak R.K. Title - "Geofiltaration
modeling implementation for development of effective ground
water withdrawals schemes of reclamation-irrigation function". Collection "Geological services of Kyrgyzstan",
Frunze, "Ylym" 1990. |
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