Сравнение практик

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

• Use of water resources
• Use of land resources

Страна: Туркменистан

Область: Ахалская

Другой населенный пункт: Yerbent

Страна: Казахстан

Область: Южно-Казахстанская

Район: Мактааральский

The site (nearly 842,000 hectares; population of 8,000 people) is located in the Central Kara Kum Desert. The relief is represented by the combination of “barkhans” (sand dunes) of various forms and “takyr” (dry-type playa) depressions. The majority of the area is covered by desert pastures.

• Upstream (Ferghana) and midstream (Syr Darya) of the Syr Darya River
• Ebb occurrence of highly mineralized ground water

Дата начала: 01.01.2009

Дата окончания: 31.12.2010

Дата начала: 01.01.1965

Дата окончания: 31.12.1975

As soon as people began to lead a settled life, they shifted away from the traditional way of livestock grazing. The land became subject to strenuous exploitation, especially near settlements and watering sites.  Saxaul thickets were cut down for heating and cooking purposes.  The thickets were unable to restore over time due to overgrazing. Frequent movement of sand dunes and severe sandstorms threaten not only dwellings and social infrastructure, but also degrade soil and destroy the limited number of available water wells. Degraded pastures fail to yield enough livestock forage. The shortage of watering sites leads to consolidation of large numbers of animals around existing wells.  Structural changes in livestock production (more goats and cattle instead of camels; more unprotected pastures around settlements instead of distant pastures) lead to vegetation cover degradation, in particular, around settlements and watering sites.

Deterioration of reclamation situation: rising of ground water, land salination

Technology for combatting desertification and droughts by proper management of wells and watering sites (construction and repair of wells, building mechanical protection from reed mats and Saxaul saplings)

Technique and technology of land reclamation via a system of vertical drainage wells (VDW)

Actions:

8 new wells built and 6 existing wells repaired, and mechanical protection (reed mats and Saxaul saplings) set up on the territory of 27 hectares.  Water wells also underwent small-scale repair and construction to expand the area of pasturable land and prevent localized degradation.

Results:

After the restoration of wells, desert pastures became subject to even and rational use; installation of mechanical protection allowed to stop the approaching sand dunes around settlements.

Actions:

A VDW system set up. Prior to its installation, the area was drained via a horizontal open-type drain-age network ineffective as to reducing the mass of salinized land.

Comprehensive VDW efforts significantly enhanced drainage.

However, currently due to the absence of a single organization responsible for VDW operation, maintenance and repair, the VDW systems recon-structed under World Bank and Asian Development Bank projects do not perform as effectively as ini-tially.

Results:

Financial and economic:
Increased cotton yields (from 10-15 up to 30-35 dt/ha).

Technical:
Successful response to land salination in 3 districts: ground water table steadily kept at 2-3 m depth leading to a sharp contraction of salinized land area.

Lessons learnt:

The capacity of watering sites was increased by way of improving the existing infrastructure and, where possible, building new wells infrastructure.  The newly drilled wells significantly aid local population in maintaining their livestock and households.

Recommendations:

It is necessary to test traditional drought-resistant grain crops.

Lessons learnt:

In due time, the model proved useful and timely, as the country urgently needed to increase its cotton yields. The practice demonstrated high efficiency of VDW in combatting land salination.

Recommendations:

1. Establish a special VDW System Maintenance and Operation Department;
2. Build personnel capacity:
• Continual training of personnel in the Department and Provincial Hydrogeological and Land Reclamation Expedition;
• Drafting and distribution of training materi-als.

• Traditional tools transferred from generation to generation that proved their efficiency in modern conditions;
• Domestic tools (outcomes of research by domestic R&D organizations)

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

1. Затраты на внедрение: Высокие

2. Примерная стоимость капиталовложений на 1 га:

3. Затраты на поддержание и эксплуатацию: Высокие

4. Экспертная поддержка: Не требуется

1. Затраты на внедрение: Умеренные

2. Примерная стоимость капиталовложений на 1 га:

3. Затраты на поддержание и эксплуатацию: Высокие

4. Экспертная поддержка: Не требуется

Project title: Local-level capacity building and investment for sustainable management of land resources.

Project duration: 2009-2010.

Project goal and objectives: combating desertification and droughts.

Project beneficiaries: farmers and representatives of local executive bodies in several settlements.

Project implementer: Ministry of Nature Protection of Turkmenistan and German Technical Cooperation Agency (GIZ).

http://www.turkmenistan.ru/?page_id=3&lang_id=ru&elem_id=17207&type=event&layout=print&sort=date_desc 

Reshetkina N.M. et al. “Vertical Drainage”, Moscow: Kolos, 1978. – 319 p.

SIC ICWC

SIC ICWC