Сравнение практик

• Use of water resources
• Use of land resources
• Environmental protection

• Use of water resources
• Use of land resources
• Re-use of drainage water for irrigation

Страна: Туркменистан

Страна: Казахстан

Область: Южно-Казахстанская

Район: Мактааральский

Другой населенный пункт: Zhanaauyl Rural District

17,238 ha of barkhan (sand dune), takyr (dry-type playa) and solonchak (moist-type playa) sites of the Kara Kum Desert; deep ground water occurrence

The Maktaaral Irrigation Massif has 220 vertical drainage wells (VDW), but currently practically all of them are not operational.   The highest level of ground water occurrence in Maktaaral Irrigation Massif falls on December-February after completion of fall irrigation washings and water-charging.  The beginning of vegetation season (April-May) is characterized by receding ground water table.

The second ground water table rise occurs during mass vegetation watering of main crops, as a rule in July-August.

The vertical drainage system in Maktaaral Irrigation Massif does not operate on permanent basis, but mainly during fall and winter (irrigation washing, water charging) and during the vegetation season at the time of insufficient irrigation water supply.

Дата начала: 01.01.2012

Дата окончания: 31.12.2016

Дата начала: 01.01.2016

Дата окончания: 31.10.2017

Desertification and decreased productivity of desert pastures due to over-grazing around existing cattle watering sites

Deterioration of reclamation situation: raising ground water table and land salination.  Intensified water withdrawal, saving on pipes, reusing ground water for irrigation

Technology of building sardobas (stone-dome covered water collection and storage reservoirs) to enhance pasture water supply

Set of measures to enhance land reclamation condition (rehabilitation of vertical drainage well capacities, fitting them with equipment for pumping ground water via casing column)

• Using casing pipes in wells for water lifting requires application of a special (pipeless water-lifting) device.

Main actions:

• mudflow and flood risk assessment and surveying local population regarding sardobas’ locations.

Actions:

• selection of takyrs to construct sardobas jointly with local cattle-farmers;
• construction of sardobas jointly with local cattle-farmers;
• cleaning takyr surfaces.

Results:

• pastures that were not previously utilized due to absence of water sources returned to pasture rotation;
• pastures destroyed due to over-grazing started to restore;
• increased herd productivity due to reduced passage distances and higher fodder value of pastures.

The pipeless water-lifting device allows fixing the submersible pump at a set depth and dividing the well’s trunk into suction and injection zones.

Water lifting is done via the casing column and not the water-lifting pipe used in traditional well operation technology.

 At the same time:

• metal consumption and total weight of the pumping installation decreases by 60-90%;
• pollution of the water-bearing layer is excluded; assembly and dismantling costs decrease by 40-70%;
• power costs of water lifting decrease by 30%; water return of the water-bearing layer increases; possibility of polluting and/or infecting the water-bearing table is excluded making the suggested technology competitive.

 This technology of pumping underground water renders the possibility of intensifying water withdrawal due to creating vacuum in the pump’s suction zone.

Lessons learnt:

Construction of sardobas in takyr areas allows enhancing pasture water supply, thus, leading to the restoration of over-grazed pastures.

Recommendations:

The practice requires long-term planning and an integrated response with the early-on engagement of desertification experts (designing a set of measures to protect takyrs from sand drifts), state agencies (technical assistance) and pasture users (observance of pasture rotation schemes, prevention of takyrs from contamination and pollution).

There is a need to perform major repair of vertical drainage system with the aim of ensuring the timely diversion of drainage and waste water from the Maktaaral Irrigation Massif.

It is also necessary to identify the optimal environmental and reclamation conditions to prevent salination of irrigated massifs by way of re-using drainage water for irrigation.

The data on the chemical composition of drainage and waste water (as per reports by Southern Kazakhstan Hydro-Geological Reclamation Expedition) prove that in most cases such water can used for irrigation without the need to dilute it with clean irrigation water.

Required personnel capacity-building:

• continuous training of the staff of the Operational Section of Southern Kazakhstan branch of RSE “Kazvodkhoz” on assembly and dismantling of target equipment used for VDW re-fitting;
• drafting and disseminating training materials (operation recommendations, practical seminars and trainings).

Traditional tools transferred from generation to generation that proved their efficiency in modern conditions

Domestic tools (outcomes of research by domestic R&D organizations)

1. Затраты на внедрение: Низкие

2. Примерная стоимость капиталовложений на 1 га: $1,000-5,000

3. Затраты на поддержание и эксплуатацию: Низкие

4. Экспертная поддержка: Требуется на стадии внедрения

1. Затраты на внедрение: Высокие

2. Примерная стоимость капиталовложений на 1 га:

3. Затраты на поддержание и эксплуатацию: Высокие

4. Экспертная поддержка: Не требуется

Project title: Responding to climate change risks for dekhan farming system of Turkmenistan on national and local levels.

Project duration: 2012-2016. 

Project goal and objectives: build the adaptation capacity to respond to climate change impacts, including variability on local and national levels. 

Project beneficiaries: Bori Settlement (over 1,100 people) and Bo-Kurdak Settlement (about 4,500 people).

Project implementer: Ministry of Nature Conservation and UNDP

Within the framework of 5039GF/4 Project supported via the financial grant on behalf of the Ministry of Education and Science (MoES) of Kazakhstan, several demo-sites were established in Maktaaral District of Southern Kazakhstan Region to hold trainings and practical seminars for specialists and to promote the new technology of pumping underground water via vertical drainage wells re-fitted with pipeless water-lifting devices.

Observations of ground water level were performed in the irrigation massif; optimal reclamation regime for irrigated land via vertical drainage wells based on the new technology was developed.

tm.undp.org

Tumlert, V.A., Tumlert, E.V. “Outcomes of designing a device to pump underground water via well casing column” //Fair and rational use of natural resources – a way to the future (III Urkumbayev Readings): report abstract for scientific and technical conference, Taraz 2015, pp. 337-347;

Amangeldiyev, S.S. “Power-and-resource-saving technology of pumping underground water via well casing column with submersible pumps” // Khabar TV Channel, “Innovative Overdrive” Program (in the Kazakh and Russian languages), May 2015;

Tumlert, V. A., Yugai, I.A., Telgarayeva, G.E., Tumlert, E.V. “Introducing a new resource-saving technology of operating vertical drainage wells in irrigated massifs of Southern Kazakhstan Region” // ”Agrarian Science in Agriculture of Siberia, Kazakhstan, Belarus and Bulgaria”: report at the XIX International Scientific and Technical Conference, Minsk 2016, pp. 183-188;

Tumlert, V. A., Yugai, I.A., Ismailov, B.D. “Technology of  pumping drainage water within the vertical drainage system in the irrigation massif of Southern Kazakhstan Region” // “Transboundary cooperation in Central Asia – stability and wellbeing of the whole region”: materials of international scientific and technical conference, Almaty 2017, pp. 181-187;

Tumlert, V. A., Yugai, I.A., Ismailov, B.D. “Intensifying water supply of distant pastures based on GIS-technologies” // “Prospects of innovative and investment development of the water sector”: materials of international scientific and technical conference, Kherson, Ukraine, May 18-19, 2017, pp. 133-137.

SIC ICWC

SIC ICWC