|Pays, régions, bassins fluviaux|
|Ressources en eau|
|Usages de l'eau|
|Irrigation et drainage|
|Ensembles de données|
|Cartes et données spatiales|
Info pour les médias
|Visualisations et infographies|
|ODD Cible 6.4|
|Year: 2012||Revision date: 2014||Revision type: Minor: Water resources table|
|Regional report:||Water Report 39, 2013: English or Russian|
Turkmenistan is bordered in the west by the Caspian Sea, in the northwest by Kazakhstan, in the north and northeast by Uzbekistan, in the southeast by Afghanistan and in the south and southwest by the Islamic Republic of Iran. Total area is 488 100 km2 (Table 1). The country formally declared independence from the Union of Soviet Socialist Republics (USSR) in October 1991. For administrative purposes, the country is divided into five provinces (velayat) and one independent city, Ashgabat, which is the capital.
The Kara Kum desert covers 80 percent of the country. In the southwest, along the border with the Islamic Republic of Iran, lies the Kopetdag mountain chain where the Shakhshakh peak rises to 2 912 m above sea level. The highest point is the Airybaba peak, which is 3 137 m, in the Kougitantau mountain range in the east, on the border with Uzbekistan. About 12 percent of the country is covered by water and non-soil formations (talus, rocks, precipices) (AST and MOA, 1961).
The cultivable area is an estimated 7 million ha, or 14 percent of the total area. In 2009, total cultivated area was an estimated 1 910 000 ha, of which 1 850 000 ha was comprised of temporary crops, and 60 000 ha permanent, mostly vineyards, pistachio nuts, figs and olives. In 1994, the cultivated area 1 755 200 ha, was divided into kolkhoz (collective farms) and sovkhoz (state farms), which together covered 1 596 400 ha (91 percent of total cultivated area); the ‘citizens’ land’, corresponds to gardens and individual plots, on 109 900 ha (6 percent); and private farms, owned by 4 500 households, on 48 900 ha (3 percent). In May 1994, the government approved land reform, which should eventually result in the privatization of agricultural land. The sovkhoz and kolkhoz land are to be distributed to employees under a lease contract of 99 years. At the end of 1994, about 720 000 ha of this land (or 41 percent of total cultivated land) had been distributed to 260 000 farmers.
The climate in Turkmenistan is distinctly continental and arid, because of the nature of the underlying surface, and the presence of mountain ranges in the southeast and south. Average annual precipitation is about 191 mm, ranging from less that 80 mm in the northeast to 300 mm in the Kopetdag mountains in the southwest. Precipitation occurs during winter, between October and April. Sometimes there may be no precipitation during summer. Agriculture, therefore, depends entirely on irrigation.
Average annual temperature varies from 11-13 °C in the north to 15–18 °C in the southeast. Winters are mild, with little snow and moderate frost. The average temperature in January, the coldest month, is about minus 4 °C throughout most of the country, except in the southwest where the climate is milder with an average temperature of 4 °C in the coldest month. The summer is very hot and dry. In July, average temperatures exceed 30 °C throughout the country. Average annual evaporation from water surface varies from 2 000 to 2 300 mm (Berdiyev, 2006).
The total population was an estimated 5.1 million inhabitants in 2011, of which 50 percent rural, while in 2001 54 percent was rural. During the period 2001–2011, annual population growth rate was an estimated 1.1 percent. The population density is about 10 inhabitants/km2.
In 2006, 84 percent of the population had access to improved water sources (97 and 72 percent in urban and rural areas respectively). Sanitation coverage accounted for 98 percent (99 and 97 percent in urban and rural areas respectively) (Table 1).
In 2010, the gross domestic product (GDP) was US$20 001 million, of which the agriculture sector accounted for 12 percent, in 2000 it accounted for 24 percent.
In 2011, the total economically active population was 2.4 million, or 48 percent of the total population. The economically active population in agriculture is an estimated 0.7 million (29 percent of total active population), of which 53 percent is female.
Practically all the rural population possess irrigated land ranging from 0.01 to 0.25 ha for small-scale agricultural production, mainly fruit, vegetables, beans, berries and for raising cattle and poultry. A considerable proportion of the urban population possesses rural irrigated land of up to 0.01 ha, used to grow agricultural products for their own consumption. During the past years the urban population has tended towards accessing their rural plots to keep cattle and poultry (National Bureau, 2000).
In 2004, about 576 large-scale farm associations and 600 other legal entities, took part in large-scale agricultural production (Turkmenmillihasabat, 2005). About 6 100 individuals participated in medium-scale production and more than 620 000 families engaged in small-scale agricultural production.
The Government priority is to ensure food self-sufficiency by focussing on key food products. Wheat and rice are the main traditional crops cultivated to ensure food security. These crops are closely correlated to large-scale irrigation schemes. Individual rural entrepreneurs produce 99 percent of potatoes, 69 percent of watermelons, 24 percent of grape production, 82.5 percent of meat, 96 percent of milk and 93 percent of eggs. The population’s food demands are met by large-scale irrigation schemes, small-scale production and imported goods. In 2004, the importation of cattle breeding stock amounted to US$55.6 million, crops to US$28 million and animal and vegetable oils and fats to US$13.9 million (Turkmenmillihasabat, 2005).
River runoff originating within the country is an estimated 1.0 km3/year (Table 2). There are several rivers in Turkmenistan, but most flow into the country from neighbouring countries.
Turkmenistan’s main source of water is the Amu Darya river, which rises in the snow-covered mountains of Tajikistan, enters the country in the southeast along the Afghan–Uzbek border, flows in a northwestern direction, then becomes the border with Uzbekistan before entering Uzbekistan on its way to the rapidly dying Aral Sea. Most of the Amu Darya water is withdrawn by Turkmenistan and Uzbekistan along this section of their common border (Stanchin and Lerman, 2006).
The part of the Amu Darya flow that is allocated to Turkmenistan and Uzbekistan is 50 percent each of the actual river flow at the Kerki gauging station, based on an agreement between the two countries signed in January 1996, which supplemented the 1992 Five Central Asia Countries Agreement. The Turkmen allocation corresponds to 42.27 percent of the portion of Amu Darya surface water resources on which agreements have been concluded. These agreements are calculated based on about 67 percent of the total flow produced in the Amu Darya basin, which is on average 78.46 km3/year, calculated by adding the basin’ internal renewable surface water resources (IRSWR) in the different countries: Kyrgyzstan 1.93 km3/year, Tajikistan 59.45 km3/year, Uzbekistan 4.70 km3/year, Afghanistan 11.70 km3/year and Turkmenistan 0.68 km3/year. The surface water resources allocated to Turkmenistan are thus calculated every year, depending on the flows. On average, water resources allocated to Turkmenistan in the Amu Darya basin are about 22 km3/year, including 0.68 km3/year of IRSWR. Even though Afghanistan is not part of the five former Soviet states, and therefore not part of the agreement concerning allocations between the five states, the flow of 11.7 km3/year is included in the flow measured at Kerki station in Turkmenistan, based on which allocations to the five states are calculated.
As far as the Tedzhen and Atrek waters are concerned, the treaty signed in February 1926 between Iran and Turkmenistan remains in force. This treaty stipulates that each year Turkmenistan receives a quantity equal to 70 percent of the total Tedzhen average runoff, and 50 percent of the total Atrek average runoff. This corresponds to an average of 0.75 km3/year for the Tedzhen river and 0.06 km3/year for the Atrek river (including 0.02 km3/year IRSWR).
Renewable groundwater resources are an estimated 0.405 km3/year, while the overlap between surface water and groundwater is considered negligible. Total internal renewable water resources (IRWR) are thus estimated at 1.405 km3/year. Total actual renewable water resources (ARWR) are an estimated 24.765 km3/year, equal to the total actual renewable surface water resources (ARSWR) of 24.36 plus the groundwater resources of 0.405 km3/year (Table 2 and Table 3).
The largest and most important waterway in Turkmenistan is the Kara Kum canal. This canal was constructed in the 1950s and is at 1 400 km the longest canal in the world. The canal capacity is an estimated 630 m3/s. Its inlet on the Amu Darya river is located just after the river enters Turkmenistan from Uzbekistan. The Kara Kum canal pools the Amu Darya, Murghab and Tedzhen rivers into the integrated water management system and supplies water to the densely populated southern region and irrigates more than 1 200 000 ha. The canal brings water to the capital Ashgabat and to the oases in the south. Each year the canal takes 10–12 km3 from the Amu Darya river (Orlovsky and Orlovsky, after 2002).
Produced and treated desalinated water and wastewater do not play a significant role in Turkmenistan. Agricultural drainage water, however, is a substantial additional source for pasture irrigation (the Sarajin sheep breed can drink water with a salinity of up to 10 g/litre), growing salt-resistant trees and forage crops and for fisheries. Currently, a drainage water collector is being constructed, which will accumulate practically all drainage water from all regions of Turkmenistan into the artificial ‘Golden Age Lake’, located southwest of Sarykamish lake in the north.
In 2004, wastewater production was an estimated 1.275 km3,and treated wastewater 0.336 km3 all of which was directly reused. In 1994, the volume of treated industrial and municipal wastewater was an estimated 0.025 km3/year, all of which was directly reused. For the period 1990–1994, agricultural drainage water was on average an estimated 5.4 km3/year. After being collected in the collector-drainage canals, about 2.35 km3/year (44 percent) is returned to rivers, mainly the Amu Darya river, about 2.97 km3/year (55 percent) went to natural depressions, mainly the Sarykamish lake in the north on the border with Uzbekistan, and the remaining 0.08 km3/year (1 percent) was reused for irrigation.
In 2004, total dam capacity accounted for about 6.22 km3. All reservoirs were designed and constructed for irrigation and heavily affected by silt. There are five dams with a capacity of more than 0.5 km3: Zeid on the Kara Kum canal (2.20 km3), Dostluk on the Tedzhen river (1.25 km3), Oguzkhan on the Kara Kum canal (0.88 km3), Sary-Yazy on the Murghab river (0.66 km3) and Kopetdag on the Kara Kum canal (0.55 km3). The Dostluk dam is on the border between the Islamic Republic of Iran and Turkmenistan and has been designed for flood control, hydropower generation and flow regulation.
In 1993, gross hydropower potential was an estimated 5.8 GWh, while total installed capacity was about 0.7 GWh.
The outflow of agricultural drainage water has led to the creation of artificial lakes in natural depressions. The largest is Sarykamish lake, which stores about 8 km3. A major environmental issue in Turkmenistan is the permanent accumulation of pollutant salt in these lakes, which leads to the degradation of flora and fauna.
Water resources in Turkmenistan are almost fully formed from transboundary watercourses such as the Amu Darya, Murghab, Tedzhen, Atrek rivers and small rivers.
During the period Soviet era, water sharing among the five Central Asian republics was based on master plans for water resources development in the Amu Darya (1987) and Syr Darya (1984) basins.
After the country’s independence, Turkmenistan confirmed its obligations to agreements concerning transboundary rivers and water. These obligations are set out in the following (Berdiyev, 2005):
In 1992, with establishment of the Interstate Commission for Water Coordination (ICWC), the newly independent republics prepared a regional water strategy covered by the Agreement of 18 February 1992. It was decided,that existing principles be respected until a new water sharing strategy could be adopted. This new ‘Agreement on joint actions to address the problem of the Aral Sea and socio-economic development of the Aral Sea basin’, was signed by the Heads of the five states in 1996. Over the years, the ICWC has achieved the conflict-free supply of water to all water users, despite the complexities and variations of dry and wet years.
In 1993, with the development of the Aral Sea basin programme, two new organizations came into being: the Interstate Council for the Aral Sea (ICAS) to coordinate implementation of the programme and the International Fund for Saving the Aral Sea (IFAS) to raise and manage its funds. In 1997, the two organizations merged to create IFAS (UNDP, 2004).
Turkmenistan and Uzbekistan signed agreements on the principles of basic water allocation, which have proved viable. Both countries have gained experience in the joint management of the Amu Darya river. ICWC played and still plays a positive role in this respect. All the above led to the conclusion of a permanent agreement in 1996 between Turkmenistan and Uzbekistan on cooperation on water management issues. This agreement is based on the principles that the parties:
The above-mentioned agreement was signed in Turkmenabad on 15 January 1996 and established:
In a meeting in 2004, the presidents of Uzbekistan and Turkmenistan reiterated the importance of observing mutual understanding concerning all questions related to water allocation from the Amu Darya river.
The partnership between the European Union Water Initiative (EUWI) and its Eastern Europe, Caucasus and Central Asia (EECCA) programme seeks to improve management of water resources in the EECCA region. The partnership was established between EUWI and EECCA countries at the World Summit for Sustainable Development in 2002. A significant component is the ‘Integrated water resources management, including transboundary river basin management and regional seas issues’ (SIWI, 2010).
In 2002, Central Asian countries and the Caucasus, formed the CACENA Regional Water Partnership under the Global Water Partnership (GWP). Within this framework, state departments, local and regional organizations, professional organizations, scientific and research institutes as well as the private sector and NGOs cooperate to establish a common understanding of the critical issues threatening water security in the region (SIWI, 2010).
The Islamic Republic of Iran and Turkmenistan are planning to set up a joint water consortium (SIWI, 2010).
In 2004, total water withdrawal was an estimated 27.958 km3, of which 94.3 percent for agriculture (93.6 percent for irrigated farming, 0.3 percent for livestock breeding complexes and farms, 0.3 percent for pastures, 0.1 percent for fisheries), 2.7 percent for municipalities and 3.0 percent for industries (Table 4 and Figure 1). In 1994, total annual water withdrawal was an estimated 23.8 km³, of which 98 percent for agriculture, 1 percent for municipalities and 1 percent for industry.
Since 1970, water withdrawal from the Amu Darya and other rivers has nearly doubled. At the same time the loss rate has increased alarmingly, from 20 percent of the intake in the 1970s and the 1980s, to more than 30 percent since 2000. In 2004, the loss rate was around 31 percent. The main reasons for conveyance loss in the system are evaporation and filtration (Stanchin and Lerman, 2006).
Of total withdrawal of 27.958 km3, 97.4 percent or 27.237 km3 was primary and secondary surface water, 1.1 percent or 0.305 km3 was primary and secondary groundwater, 1.2 percent or 0.336 km3 was direct use of treated wastewater and 0.3 percent or 0.080 km3 was direct use of agricultural drainage water (Figure 2). In 1994, 0.401 km3 of groundwater was withdrawn, of which 0.214 km3 for municipal use, 0.151 km3 for agriculture and 0.036 km3 for industry.
Increasing production of desalinated water meets less than 1 percent of the demand for drinking water and industrial needs. Desalinated water and treated wastewater (direct use) are not used for irrigation.
Recent estimates consider irrigation potential to be 7 013 000 ha, which is equal to the cultivable area. Taking into consideration, however, water resources, are an estimated 2 353 000 ha. If techniques to desalinate the water of the Golden Age Lake become available, it is estimated that the irrigation area could be doubled. However there are varying opinions about the feasibility of this option.
Irrigation and drainage development in Turkmenistan can be divided into three stages: traditional irrigation up to the 1930s; irrigation development during the Soviet era between the 1930s and 1990s; and irrigation development since independence.
During the first stage, small and medium canals were hand dug and sporadically equipped with primitive wooden water management structures/regulators. Some main canals are 400–600 years old and are still operational. Water was taken from the rivers by means of canals and transported by gravity over 5–6 km to fields. The water intake facility was the wooden ‘water wheel’. Over 400 kyariz (underground water gathering galleries) were used in the foothill regions. The person responsible for water management was the mirab who was elected by community leaders.
During the Soviet era, state institutions were responsible for water management. Up to the 1950s little technical progress was made in water management, but upon initiation of construction of the Kara Kum canal, launched in 1954, there was a boom in irrigation development. This earth canal takes water from the Amu Darya river and transports it to the west over 1 400 km through the basins of Murghab and Tedzhen to the foothills of the Kopetdag mountain system. Construction of the 840 km main section, from the Amu Darya river in the east to Gok-Tepe just west of Ashgabat, was completed in 1967. Work continued through the 1970s and well into the 1980s, extending the canal west towards the Caspian Sea. Today it is the longest canal in the world.
The virgin territories along the course of the canal were intensively developed and agriculture introduced. The canal increased the irrigated area surrounding it from 141 500 ha in 1954 to 530 000 ha 30 years later. Since the 1970s irrigation from the canal has accounted for about 50 percent of the total irrigated area in Turkmenistan (the other 50 percent receives water through a system of smaller provincial-level canals). In addition, the canal permits irrigation of 5 million ha of desert pasture. The canal is colloquially known in Turkmenistan as the “river of life” because of its role in reclaiming desert for agriculture and providing livelihoods to hundreds of thousands of rural people. Yet benefits for some people have brought adversity to others: the diversion of water from the Amu Darya river into the Kara Kum canal and of river water for irrigation has contributed to the Aral Sea disaster, adversely affecting large parts of the population in Uzbekistan and Kazakhstan.
The third stage is characterized by development of the area close to the middle section of the Amu Darya river and western territories of Dashoguz region. A great water reservoir, equipped with modern equipment for water management, constructed in collaboration with the Islamic Republic of Iran on the Tedzhen river.
The emphasis on the expansion of cotton production in the Soviet era, and the strategy of ensuring food self-sufficiency, which has been aggressively implemented since 1992, has led to accelerated growth of irrigated areas, which have increased by nearly four-fold in the last 40 years (Stanchin and Lerman, 2006).
Given the climatic and soil conditions, the entire agricultural production is dependent on irrigation (AST and MOA, 1961). In 2006, the area equipped for irrigation was an estimated 1 990 800 ha (Table 5). The entire area is actually irrigated, which is larger than the cultivated area, since the irrigated area includes irrigated permanent pasture, while permanent pasture is not included as cultivated area. In 1994 and 1975 the area equipped for irrigation was 1 744 100 ha and 857 000 ha respectively.
Irrigation in Turkmenistan is mainly concentrated in oases, where water is diverted from the Murghab, Atrek and Tedzhen rivers and from the Kara Kum canal in the south, or from a system of canals that have been built along the Amu Darya river in the north.
In 2006 the only technique used was surface irrigation. Options for localized irrigation are being explored in a number of ongoing pilot projects. Israeli drip-irrigation technology has been installed on 600 ha near Ashgabat (Stanchin and Lerman, 2006).
Surface water is mainly used for irrigation. The share of groundwater is small and tends to decrease because of increased demand for drinking water. In 2006, surface water covered about 1 981 190 ha or 99.5 percent of total equipped area, groundwater 9 610 ha or 0.5 percent (Figure 3). In 1994, about 98 percent of the equipped area was irrigated with surface water: 54 percent from reservoirs, 28 percent from river diversions and 16 percent from pumping from rivers. Sometimes there is direct use of agricultural drainage water with salinity level of up to 3 g/litres, where there is a substantial lack of freshwater, but total volume of this water comprises less than 1 percent of total freshwater used for irrigation (MWE, 1998).
All large water pumps and many small water pumps are electric, while less than one-third of small pumps, are diesel with a production capacity of less than 0.5 m3/s and pressure of less than 10 m. There are no statistics regarding energy use for water pumps. The most common type of water pump is cascade. Systems with lengthy pipes (more than 1 km) comprise less than 10 percent of the total number of water pumping systems, and are used mainly in the foothills.
The total length of inter-farm irrigation canals is more than 8 000 km, out of which around 94 percent are earthen canals and about 6 percent concrete-lined canals (MWE, 1993 and 1998). The total length of on-farm canals is more than 34 000 km, of which around 83 percent are earthen canals, about 6 percent concrete-lined, 4 percent chute systems, 7 percent pipelines. The irrigation chute system is mainly in Mary and Ahal velayats, and irrigation is by pipeline in Ahal and Lebap velayats.
The Kara Kum and Turkmenderya canals are classified as large multi-purpose canals. Canals, that serve two or more farm associations, are classified as inter-farm canals. Canals, located within a territory of one farm association (around 500–3 000 ha), are classified as on-farm canals. Almost everywhere on-farm irrigation systems have been constructed in earthen canals and almost half of the diverted water is lost as a result of seepage (MWE, 1993 and 1998).
In 2006, total harvested irrigated cropping area was an estimated 2 013 800 ha. Wheat accounts for 917 000 ha or 45.5 percent, cotton 652 000 ha (32.4 percent), vegetables 29 400 ha (1.5 percent), sugar beet 12 000 ha (0.6 percent), rice 11 000 ha (0.5 percent), potatoes 8 800 ha (0.4 percent), temporary fodder 93 000 ha (4.6 percent), other temporary crops 100 100 ha (5 percent), perennial crops 65 000 ha (3.2 percent) and permanent pasture 125 500 ha (6.2 percent) (Table 5 and Figure 4). In 1994, total harvested irrigated crop area was an estimated 1 794 200 ha and cotton and vegetables were the most important export crops.
In 2004, irrigated crop yields were 1.2 tonnes/ha for raw cotton, 3.1 tonnes/ha for grains including maize, and 30.1, 26.8 and 21.0 tonnes/ha for vegetables, melons and potatoes respectively (Turkmenmillihasabat, 2005).
In 2004, the average cost of irrigation development on public schemes was an estimated US$8 654/ha. The average annual operation and maintenance cost is about US$47/ha, the average cost of drainage development US$2 256/ha and of irrigation rehabilitation US$6 943/ha.
Most work in the field (weeding, tipping, manual cotton harvesting, etc.) is carried out by women. Men are involved in ploughing, furrowing, sowing, fertilizing, crop harvesting with machinery, primary processing of crops, etc. (National Bureau, 2000). Manual watering is mainly done by men. Men and women participate equally in the decision-making process. However, appointments to management positions in agriculture and the water economy are made by prioritizing qualification and experience as selection criteria and not gender.
The construction of mostly open drainage systems started at the beginning of the 1950s. About 90 percent of the total length of drainage was constructed during the period 1965–1985. The intensive development of virgin land for agriculture, with little attention being paid to the installation of water regulators on the irrigation canals, resulted in the irrational use of water. Further construction of drainage structures continued to lag behind the development of virgin land and the construction of unlined irrigation canals. All these factors – unlined canals, insufficient length of the drainage system, irrational irrigation norms and poor quality of construction works – resulted in catastrophic soil salinity, that is a currently a major problem that needs to be resolved. The economic crisis at the beginning of the 1990s resulted in the shutting down of the construction of any new drainage structures.
Following a decision adopted in 2000 by the President of Turkmenistan, the country initiated the trans-Turkmen collector for drainage water, with the construction of a huge artificial lake in the middle of the Kara Kum desert, the Turkmen Golden Age Lake, on the site of a natural dry lake in the Karashor lowlands. The lake is on the border between Ahal and Dashoguz velayats, 350 km north of the capital Ashgabat. The lake is to be filled with drainage water through two new collectors, the Great Turkmen Collector from the south and the Dashoguz Collector from the north, with a combined length of over 1 000 km. The lake’s capacity is foreseen to be 150 km3, with a surface area of 3 500 km2 and a depth of 130 m. Starting in 2009, the collectors have been diverting up to 10 km3 of saline drainage water to the lake annually. This water currently discharges into the Amu Darya river, which is a unique source of drinking water for much of the region. Construction of the trans-Turkmen collector aims to improve water quality in the Amu Darya river by stopping the discharge of drainage water into the river.
The extension of the collector-drainage network has lagged far behind irrigation expansion. The collector-drainage network was increased by 7 percent between 2000–2004, while the irrigated area increased by 26 percent. This led to accelerated raising of the groundwater table, deterioration of soil quality and increased salinity (Stanchin and Lerman, 2006).
Local water experts argue that the Golden Age Lake will reclaim 450 000 ha of waterlogged land, dramatically reduce salinization in the Amu Darya river and provide a huge reservoir of water that will be recycled for irrigation after partial desalination treatment. The exact nature of desalination is not clear, but Turkmen scientists are working on bio-plateau techniques and harnessing of solar energy for desalination. If successful, these techniques will produce huge amounts of new water for irrigation and make it possible to double the irrigated area. Cotton and wheat production would increase by at least 30 percent, and the brackish lake would create new opportunities for the development of fisheries. There is a generally optimistic vision of a ‘huge oasis’ that will arise in the desert around the lake and along the new waterways (Stanchin and Lerman, 2006).
Foreign experts working on the Aral Sea crisis are less optimistic. They claim that the lake water will simply disappear through evaporation under the fierce desert sun, leaving salt sediments that will poison the entire area. The use of recycled lake water will only increase salinization of agricultural soils, as proved by the experience of other countries that use brackish water for irrigation. They fear that, by virtue of its sheer size, the lake may be a source of considerable environmental damage to the entire region (Stanchin and Lerman, 2006).
Drainage water should be collected at a great distance from oases, otherwise the water level in the collectors will rise and many areas become waterlogged. Moreover, because of drainage water, the pasture quality has degraded and the probability of ecological risks (desertification, wind and water erosion, decreased wild populations) has increased.
Soil productivity without drainage is 30–70 percent less than the productivity of soils with drainage (MWE, 1989). Without drainage, land accumulates many toxic salts in the root zone during irrigation, which leads to doubling the level of salinity. In 1998, drainage infrastructures were constructed on about 1 011 897 ha of irrigated area. In 1995, subsurface drainage accounted for approximately 32 percent of the total drainage area, mainly on newly reclaimed areas, horizontal surface drainage for 60 percent, and vertical surface drainage for 8 percent.
Most of the known drainage types are applied, including channels for safe removal of mudflows. Vertical drainage is mainly used in urban areas for protection from waterlogging. When the water quality is good it is used to water trees in the cities.
Water resources management in Turkmenistan is carried out by both national organizations and departments, and international organizations, such as the Amu Darya River Basin Authority (BVO), IFAS and the ICWC of Central Asia. The Cabinet Ministers of Turkmenistan have complete responsibility for water resources and maintenance of reliable water supply for both the agriculture, municipal and industrial sectors. The following state departments and organizations are engaged in management of water resources:
During the Soviet era, water management was the responsibility of state institutions.
All inter-farm canals are managed by authorized state agencies. MWR manages water resources related to water infrastructure through specialized organizations that administer territories within the state. Production associations of velayats are responsible for the operation, repair-restoration, construction and auxiliary subdivisions of etraps (districts).
Farm unions manage all on-farm canals, even when the irrigated land is rented or privately owned by individual farmers. Water resources management at on-farm level, i.e. distribution of water between final water users (farmers, tenants and brigades), repair-restoration and construction works on structures, clearing of channels, drains and collectors, etc. is the responsibility of the local authorities (hakimliks, archyns). The mirap (irrigator) position was introduced for decisions on these matters at the level of the municipal authorities.
Training of personnel for agriculture and water management is carried out by the Turkmen State Agricultural University, named after S.A. Niyazov, including its hydro-improvement faculty. Since 2001, the Central Asian region has been working with the Training Centre at Sepang International Circuit (SIC) of the ICWC to improve the professional skills of those working in water management.
The state is responsible for all expenses related to capital investment in irrigated agriculture, such as the development of land, construction of main structures and water infrastructure. Except for the on-farm irrigation system, the costs of operating water infrastructure are met by the state budget. Water for irrigation is supplied without charge. The so-called ‘private charges’ for the O&M of irrigation systems is an accepted practice, and comprises a deduction of 3 percent from the total of crops produced by the tenants. A calculation shows that over the past years these charges have amounted to US$10–18 million.
Article 58 of the Water Code states: “Water management agencies provide technical assistance to farmers’ unions and other legal entities at the expense of the latter in operation of on-farm irrigation and drainage systems and hydro-technical structures...”. The following principles of water consumption and use regulation in Turkmenistan are legally bound (GoT, 2004b):
In 2006, total investment in irrigation and drainage was US$140 million, including US$87 million state investment (MWE, 2007). About US$53 million were classified as indirect investments because they were given as credits by banks. The long-term (up to 2030) irrigation and drainage development programme, adopted in 2007, states that investment of US$730 million is planned for irrigation and US$537 million for drainage up to 2010. Planned investment for 2010–2015 is US$4 720 million, out of which US$3 643 million is investment by the state. It is expected that the investments will be increased 2016–2020 up to US$8 770 million, including US$6 875 million state investments. The amount is estimated based on average world prices during the period 2001–2006. It should be clarified, however, that fuel prices for most local construction materials are several times lower than the world average. For example, the price of petrol in Turkmenistan is less than US$0.02 per litre.
Annual investment in land-reclamation is around US$11–12 million (MWE, 2007). Annual expenditures of the state budget for operation of irrigation systems varies between US$37–49 million.
The constitution of Turkmenistan states that the Cabinet of Ministers undertake state management of economic and social development and ensure the rational use and protection of natural resources. The Water Code, issued on 27 December 1972, details the competences of the Cabinet of Ministers, the authorized state body for water use and protection, local executive power, civil societies and individuals. In particular, the Cabinet of Ministers defines water consumption limits for each velayat and etrap, including distribution of main water sources to the economic sectors. According to the Water Code, water is owned solely by the state, whereas both legal entities and individuals can own water structures.
In February 2007 a national development programme for the water economy of Turkmenistan up to 2030 was approved by all ministries and agencies involved (MWE, 2007). Main development priorities are to:
The programme takes into account population growth, increase of industrial and agricultural production as well as environmental issues and international commitments of Turkmenistan.
The national programme for economic, political and cultural development of Turkmenistan up to 2020 foresees an increase in the number of private agricultural producers and their support through the implementation of infrastructure projects for development of territories paid for our of the state budget (GoT, 2002). Currently state producers use about 90 percent of irrigated land, up to 2020 it is planned that this irrigated land will be transferred to the private sector based on new legislation. Joint-stock enterprises, farm unions and cooperatives will become the organizational forms for private land use.
Legislation reforms in the water sector have overlapped with the adoption of the Land Code, which for the first time legally sets out the right for private ownership of land. In 2007 drafts of laws on ‘farm’ and ‘farm unions’ were published in the newspaper, whereby the role of farmers in decision-making process is further increased, with the objective of decentralization of land resources management (GoT, 2007a and 2007b).
Environmental issues are particularly acute in Turkmenistan. Water in the rivers and the drainage networks is of very poor quality, containing high concentrations of salts and pesticides from both the country itself and from upstream countries. This affects the Aral Sea area, where some of the main collector-drainage canals discharge. A trans-desert collector running about 720 km from the northeast to the Caspian Sea in the far west is under construction as explained in the section: Status and evolution of drainage system.
The irrational use of water resources by the countries of the Central Asian region during the last 50 years is one of the most critical reasons for lack of water. This has resulted in an environmental crisis in the Aral Sea basin, salinization of irrigated lands and decreased fertility. Currently, around 90–95 percent of irrigated land in the Turkmen Aral Sea zone is saline (Berdiyev, 2006). In 2001, the total area salinized by irrigation was and estimated 1 353 744, including land with medium and high salinity.
In 2001, the direct economic loss of land with different degrees of salinization was US$142 million. By yield classes, about 32 percent are highly fertile soils. About 36 percent of the land are affected by medium and severe salinity and are exposed to secondary salinization and waterlogging because of close bedding (up to 2 m) of groundwater. Waterlogging also appears in desert pastures because of drainage water discharges. In 2002, irrigation caused waterlogging on about 756 500 ha.
During the past decades water quality in the Amu Darya river has deteriorated considerably as a result of discharge of drainage and industrial water from neighbouring countries. Average annual salinity level was 0.3 g/litre before 1962, increased to 0.8 g/litre in 1967. In the 1990s, it stabilized within the range of 1.5–1.6 g/litre reaching 2 g/litre during certain periods (Berdiyev, 2006).
The human pressure on surface water is high; although pollution with biogenic elements or organic substances has not yet reached dangerous levels, special attention must be paid to monitoring concentration (especially phenols and nitrates). About 4 km3 of drainage water with salinity level of 6.5–8.5 g/litre is discharged annually into the Amu Darya river from neighbouring Uzbekistan. Because of this, salinity level in the Amu Darya can be up to 2.2 g/litre in certain periods, which negatively affects the health of the population in Dashoguz province, as well as the productivity of irrigated land (Berdiyev, 2006).
Over the past years, application of pesticides, herbicides, defoliants and other chemicals has decreased 2.9 times. The area of their use has been reduced four-fold, as a result of government policy to ensure food security through introduction of Integrated Pest Management (IPM). This has resulted in reduced pollution in the water catchment areas.
In 2004, people affected by water-related diseases amounted to 12 295, of which 7 955 by intestinal infections, 22 by typhoid and 4 318 by virus hepatitis.
In 1998, there was an outbreak of malaria, 137 cases were recorded. Since then, cases of malaria have fallen and Turkmenistan has made significant progress with malaria control; the disease is reported as having been eliminated.
Surface water resources are almost all entirely used. The government states that the irrigation area can be increased and that water supply to irrigated areas be ensured by (MWE, 2007):
AST & MOA. 1961. Agricultural system of Turkmenistan. Academy of Sciences of Turkmenistan & Ministry of Agriculture. Published in Russian.
Berdiyev, A. 2005. National water law of Turkmenistan and international agreements on transboundary water, Lectures on international and national water law and policy. ICWC Training Centre. Published in Russian and English.
Berdiyev, A. 2006. Progress in domestic water supply in view of the achievement of UN Millennium Development Goals, issues of the implementation of integrated water resourse management in view of the achievement of UN Millennium Development Goals (national seminar materials). (Turkmen)
EBRD. 2006. Turkmenistan - EBRD country factsheet. European Bank for Reconstruction and Development.
FAO. 1997. Irrigation in the countries of the former Soviet Union in figures. FAO Water Report No. 15. Rome, Food and Agriculture Organization of the United Nations.
GoT. Official site of Turkmen government (including legislation). Government of Turkmenistan.
GoT. 1992. Constitution of Turkmenistan. Government of Turkmenistan.
GoT. 2002. National Programme Strategy of economical, political and cultural development of Turkmenistan up to 2020. Government of Turkmenistan. (Turkmen and Russian)
GoT. 2004a. Land Code of Turkmenistan. Government of Turkmenistan. (Turkmen and Russian)
GoT. 2004b. Water Code of Turkmenistan. Government of Turkmenistan. (Turkmen and Russian)
GoT. 2007a. Draft of the Law of Turkmenistan About farmer unions. Government of Turkmenistan.(Turkmen and Russian)
GoT. 2007b. Draft of the Law of Turkmenistan. About individual farmer enterprise. Government of Turkmenistan (Turkmen and Russian)
Hydro Meteo Center. 1976. Surface water resources of USSR, Vol.14, Central Asia. Gidrometeoizdat USSR Gidrometcentr. (Russian)
ICWC. Web site: www.sic.icwc-aral.uz. Interstate Commission for Water Coordination.
Ministry of Health & Medical Industry. 2007. Presentation of sanitary-epidemiologic service of the Ministry of Health and Medical Industry of Turkmenistan at WHO organized Conference devoted to launch of malaria elimination campaign. Ashgabat, Turkmenistan, 31 May 2007.
MWE. 1989. Watering regimes on agricultural crops. Ministry of the Water Economy. (Russian)
MWE. 1993. Annual report on irrigation schemes maintenance. Ministry of the Water Economy. (Russian)
MWE. 1998. Report on water & soil survey of the irrigated land of Turkmenistan. Water & soil monitoring service under the Ministry of the Water Economy. (Russian)
MWE. 2007. Programme for development of agriculture for the period up to year 2030 – water sector. Ministry of the Water Economy. (Turkmen)
MWE, MNP, MOF, MOA, National Agency ‘Turkmengeology’, National Agency ‘Turkmenstandardlary’. 2002. National environmental action plan of Turkmenistan. Ministry of the Water Economy, Ministry of the Natural Protection, Ministry of Finance, Ministry of Agriculture. (Turkmen, Russian and English)
National Bureau. 2000. Women in development. National report on the status of women in Turkmenistan (Russian)
Orlovsky N. & Orlovsky L. After 2002. Water resources of Turkmenistan: use and conservation. Israel, The Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev.
SIWI. 2010. Regional Water Intelligence Report Central Asia. Stockholm International Water Institute.
Stanchin I. & Lerman Z. 2006. Water in Turkmenistan. In: (Eds.) M. Spoor and M. Arsel. 2008. The Last Drop. Water, security, and sustainable development in Central Eurasia. London, Routledge, 2008.
Turkmenmillihasabat. 2005. Statistical yearbook of Turkmenistan. National Institute of State Statistics and Information of Turkmenistan. (Turkmen)
Turkmengeology. 2004. The fresh groundwater resources of Turkmenistan register. (Russian)
UNDP. 2004. Water resources of Kazakhstan in the new millennium. New York, United Nations Development. Programme
World Bank. 2006. Structure of output. Table 4.2 – Structure of output. Washington, DC.
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