|Pays, régions, bassins fluviaux|
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|ODD Cible 6.4|
|Year: 2012||Revision date: --||Revision type: --|
|Regional report:||Water Report 39, 2013: English or Russian|
Tajikistan is a mountainous, landlocked country in southeastern Central Asia. It has a total area of about 142 550 km2 (Table 1). It is bordered in the west and northwest by Uzbekistan (910 km borderline), in the northeast by the Kyrgyzstan (630 km), in the east by China (430 km) and in the south by Afghanistan (1 030 km). The country became independent in September 1991. The mountainous landscape covers 93 percent of the country. Administratively, the country is divided into four provinces: Badakhshan (64 200 km2), Khatlon (24 800 km2), Sughd (25 400 km2) and Regions (Raions) of Republican Subordination (28 154 km2).
The north Sughd and east Badakhshan regions are separated by high mountain ranges and are often isolated from the centre and south during winter. The Fergana valley, which is a major agricultural area, covers part of the north. A few valleys in the centre are between several mountain chains; most of the country is over 3 000 m above sea level. In the east are the Pamir mountains, which form part of the Himalayan mountain chain and are among the highest and most inaccessible mountains in the world. The highest mountain in the country, as well as in the Former Soviet Union (FSU), is the Ismoili Somoni peak, which rises to 7 495 m. Tunnels are being constructed through two mountain ranges to connect the capital Dushanbe with north Sughd province and China to the east of the Pamir mountains. A bridge, built over the Panj (upstream Amu Darya) river in the south connects the country with Afghanistan.
In 2009, total cultivated area was an estimated 875 000 ha. About 742 000 ha under temporary crops and 133 000 ha permanent.
The climate is continental, but the country’s mountainous terrain gives rise to wide variations. In areas cultivation takes place, mainly on the river floodplains, the climate is hot and dry in summer and mild and warm in winter. Average annual precipitation is 691 mm, ranging from less than 100 mm in the southeast and up to 2 400 mm on the Fedchenko glacier in the centre. Precipitation occurs during the winter, between September and April. Average temperature is 16–17 °C and absolute maximum temperature recorded is 48 °C in July; absolute minimum is minus 49 °C in January. The daily temperature is about 7 °C in winter and 18 °C in summer. Evapotranspiration varies from 300 mm/year to 1 200 mm/year, for stony soils and can be as much as 1 500 mm/year.
Total population in 2011 was an estimated 7 million inhabitants, of which 74 percent rural (Table 1). During the period 2001–2011, the annual population growth rate was an estimated 1.1 percent, while during the 1980s it was 3.3 percent. The main reasons for the decline were emigration and lower birth rates as a result of deteriorating socio-economic conditions. The population density is about 49 inhabitants/km2, ranging from three inhabitants/km2 in the southeast to 186–243 inhabitants/km2 in the districts around Dushanbe; 221–359 inhabitants/km2 in the districts around Qurghonteppa and 223–377 inhabitants/km2 in the districts around Khujand.
In 2010, 64 percent of the population had access to improved water sources (92 and 54 percent in urban and rural areas respectively). Sanitation coverage accounted for 94 percent (95 and 94 percent in urban and rural areas respectively).
In 2010, Tajikistan’s gross domestic product (GDP) was US$5 640 million of which the agriculture sector accounted for 21 percent.
In 2011, the total economically active population was 2.9 million, or 42 percent of the total population. The economically active population in agriculture was an estimated 0.8 million (27 percent of total active population), of which 53 percent is female.
According to the World Bank poverty assessment, the poverty rate decreased from 82 percent in 1999 to 64 percent in 2003. Over the past two decades, unemployment has become a problem, aggravated by the world financial crisis. More than 600 000 Tajiks work in other countries, mainly in the Russian Federation.
Tajikistan cities import about 50 percent of wheat, meat, milk, eggs, fruit including melons and watermelons. The main reason is lack of irrigated land, and another is under-developed agricultural production. The main export goods are aluminum and cotton. In 2008, the export of cotton fibre fell by 30 percent as compared to 2007.
About 95 percent of crop production is from irrigated land. Rainfed agriculture in arid Tajikistan is not guaranteed because of low precipitation. Rainfed land is used to grow cereals and for pastures. Cereal yields on irrigated areas are 2–3 times higher than on rainfed land.
Climate conditions allow for cultivation of a wide variety of crops, such as cereals, legumes, vegetables, orchards (apricots, grapes, apples, pears, pomegranates, figs, walnuts, pistachio, peaches, cherries, plums, cucurbitaceous, citrus), watermelons, melons, pumpkins, non-food crops (cotton, including fine fibre, tobacco, geranium), medicinal herbs.
Tajikistan can be divided into four major river basin groups (Table 2):
Total internal renewable surface water resources (IRSWR) are an estimated 60.46 km3/year (Table 2). During the Soviet period, water resources were shared among the five Central Asia republics based on master plans for water resources development in the Amu Darya and Syr Darya river basins. With the establishment of the Interstate Commission for Water Coordination (ICWC) in 1992, the newly independent states prepared a regional water strategy (Agreement of 18 February 1992), but continued to respect existing principles until the adoption of a new water-sharing agreement. Surface water resources allocated to Tajikistan are thus calculated every year, depending on existing flows. On average, however, incoming surface water resources that are available to Tajikistan are thought to be 13.31 km3/year (1.51 Amu Darya and 11.8 Syr Darya). Considering an outflow of 54.86 km3/year, secured by agreements, this means that the total renewable surface water resources (TRSWR) for Tajikistan are18.91 km3/year (60.46+13.31-54.86) (Table 2).
Internally generated renewable groundwater resources are an estimated 6 km3/year, of which 3 km3/year overlap with surface water resources. In 1999, the portion of groundwater resources for which abstraction equipment exists was an estimated 2.2 km3/year.
Tajikistan’s total actual renewable water resources (TARWR) may thus be estimated at 21.91 km3/year (Table 2 and Table 3).
In 1994, the return flow within Tajikistan amounted to 4.36 km3/year, including 3.78 km3/year of collector-drainage flow from irrigation and about 0.58 km3/year of municipal and industrial wastewater. The main portion of the return flow, about 3.94 km3/year, flowed back to rivers, of which 2.85 km3 into the Amu Darya river and 1.09 km3 into the Syr Darya river. Around 0.35 km3/year (8 percent of total return water) were directly used for irrigation. The remaining 0.06 km3/year of return flow were directed to natural depressions. Since 2000, the average return flow has decreased to 3.5 km3/year, because water intake from rivers for irrigation and other water sector needs has been reduced. The main portion of the return flow, about 3 km3/year, flows back to the Amu Darya and Syr Darya rivers. Around 0.3 km3/year is directly reused for irrigation. In 2008, wastewater produced accounted for 92 million m3 of which 89 million m3 were treated.
There are 1 300 natural lakes in Tajikistan with a total water surface area of 705 km2 and a total capacity of about 50 km3. About 78 percent of the lakes are in the mountain area over 3 500 m above sea level. The largest lake in the country, lake Karakul, is in the northeast at 3 914 m, with a surface area of 380 km2 and a volume of 26.5 km3. Sarez lake with 86.5 km2 surface area and a volume of 17.5 km3 is the second largest lake.
Water regulation is implemented by hundreds of hydraulic headworks, canals, pump stations and reservoirs. Reservoirs play the main role in water regulation for Tajikistan and downstream countries.
In 2010, there were 17 dams: 4 in the Syr Darya river basin and 13 in the Amu Darya river basin, of which 8 on the Vakhsh river, 2 on the Panj river and 3 on the Kofarnihon river. Their total reservoir capacity is about 29.5 km3.
Ten reservoirs have a capacity of more than 10 million m3 each and their total capacity is 29 km3. The largest reservoirs are: Nurek on the Vakhsh river (10.5 km3), Kayrakkum on the Syr Darya river (4.16 km3), Farhod on the Syr Darya river (350 million m3), Boygozi on the Vakhsh river (125 million m3), Kattasoy on the Kattasoy river (55 million m3), Muminabad on the Obi Surkh river (31 million m3), Dahanasoy on the Dahanasoy river (28 million m3) and Sangtuda 1 on the Vakhsh river (25 million m3). Sangtuda 2 reservoir (5 million m3) on the Vakhsh river was inaugurated in 2011. The Nurek headwork incorporates a unique rock-filled dam with a central core, 310 m high a power plant with a capacity of 3 000 MW. Nurek and Kayrakkum reservoirs hold water for irrigation in Uzbekistan, Turkmenistan and Kazakstan. Rogun reservoir on the Vakhsh river (13.3 km3) is under construction the first phase of construction was finished in 2012.
The gross theoretical hydropower potential is an estimated 527 000 Gwh/ year, about half of which would be economically feasible. In 1994, the total installed capacity was about 4 GWh, generating about 98 percent of the country’s electricity. In 1999, Tajikistan ranked third in the world for hydropower development, after the United States and the Russian Federation.
The main rivers in Tajikistan are classified as transboundary, because they cross the boundaries of two countries (Vakhsh, Panj, Kofarnihon and Zeravshan rivers) or four countries (Amu Darya, Syr Darya). The supply of water for irrigation suffers difficulties only in drought years.
During the Soviet era, sharing of water resources among the five Central Asia republics was based on the master plans for the development of water resources in the Amu Darya (1987) and Syr Darya (1984) river basins. A regional water strategy was prepared with the establishment of the ICWC in 1992, by the newly independent states (Agreement of 18 February 1992). Existing principles continue to be respected until the implementation of a new water-sharing agreement. The agreement included the construction of Kambarata 1 reservoir in Kyrgyzstan and Rogun reservoir in Tajikistan. The new agreement ‘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 main achievement of the ICWC has been the conflict-free supply of water to all water users, despite the complexities and variations of dry and wet years. The ICWC meets twice annually to set surface water withdrawal quotes, taking into account the main rivers water flow prognosis for the October–March and April–September seasons. For Tajikistan the Ministry of Land Reclamation and Water Resources (MLRWR) participates in the ICWC meetings and takes decisions at the interstate level concerning management of the Amu Darya and Syr Darya rivers water resources.
Uzbekistan is not in agreement regarding construction of reservoirs in the mountain areas of Tajikistan and Kyrgyzstan. Disputes between Tajikistan and Uzbekistan regard the management of the Kayrakkum reservoir in Tajikistan (UNDP, 2004). Tajikistan and Kyrgyzstan state that the reduction of the Aral Sea is caused mainly by inefficient water use for irrigation (<30 percent). Afghanistan has notified that it plans to develop irrigation and hydropower in the Amu Darya river basin.
In 1993, with the development of the Aral Sea basin programme, two new organizations emerged: 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).
The partnership between the European Union Water Initiative (EUWI) and its Eastern Europe, Caucasus and Central Asia (EECCA) programme seeks to improve the management of water resources in the EECCA region. The partnership was established between the European Union and the 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 and the private sector and NGOs cooperate to establish a common understanding of the critical issues threatening water security in the region (SIWI, 2010).
In 2004, experts from Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan produced a regional water and energy strategy within the framework of the United Nations Special Programme for the Economies of Central Asia (UN-SPECA). In collaboration with the EUWI and the UNECE is developing integrated water resources management in the Central Asian States. In cooperation with Germany and other EU countries, UNECE may play a role in the implementation of the EU Strategy for Central Asia in the water and energy sectors (SIWI, 2010).
On average, annual water withdrawal for the monitoring period 1985–2008 was 10.0–14.5 km3/year. In 2006, total water withdrawal was an estimated 11.5 km3, of which 91 percent for agricultural, 6 percent for municipal use and 3 percent for industry (Table 4 and Figure 1). The volume of water used to fill fishponds (aquaculture) 2005–2009 was approximately 55 million m3/year (State Unitary Department ‘Mohiyi Tojikiston’, 2009). For hydropower about 32–34 km3/year of water flows through turbines.
In 1994, total water withdrawal was an estimated 11.9 km3 (92 percent for agricultural purposes), of which 9.26 km3 (78 percent) was surface water, 2.26 km3 (19 percent) groundwater and an estimated 0.35 km3 (3 percent) direct use of collector-drainage water and wastewater for irrigation (Figure 2). Groundwater is mostly withdrawn by industry.
Irrigation in Tajikistan is important for the development of agriculture and the national economy. Large-scale irrigation development in southern Tajikistan started in 1931 with the construction of the Vakhsh main canal in the Vakhsh valley. This canal is 11.7 km long with a capacity of 150 m3/s, diverting water from the Vakhsh river for the irrigation of 120 000 ha. The Vakhsh main canal was later reconstructed, its capacity increased to 200 m3/s and the canal extended to irrigate the Akgazy plateau.
During the Soviet era, significant irrigation development took place in the Kofarnihon river basin, in southern Tajikistan. Together with Uzbekistan, Tajikistan built the Large Gissar canal in 1940, which carries water from the Kofarnihon river to the Surkhandarya river basin in Uzbekistan. In 1994, the irrigated area in the Kofarnihon river basin in Tajikistan was about 29 000 ha.
Further irrigation development in southern Tajikistan took place with the construction of the Nurek and Baipaza dams on the Vakhsh river. Water is provided through a 13.7 km irrigation tunnel to irrigate 76 000 ha in the Dangara valley. In the Vakhsh basin, a large irrigation system (40 000 ha), located in the Yavan and Obikiik valleys, which is extremely short of water, is supplied with water from the Baipaza reservoir through a 7.3 km long tunnel.
Recently, the irrigation potential area has been estimated as 1.58 million ha, which is about 11 percent of the total area of the country. In 1960, the total area equipped for irrigation was an estimated 408 000 ha. In 1994 it was 719 200 ha, which was 74 percent of the total cultivated area. About 33 percent of the total irrigated area (240 200 ha) is in the Syr Darya river basin and 67 percent (479 000 ha) in the Amu Darya river basin, of which 20 000 ha in the Zeravshan basin, 49 000 ha in the Kofarnihon basin, 18 000 ha in the Panj basin and 392 000 ha in the Vakhsh basin. In 2009, total area equipped for irrigation was 742 051 ha (Table 5). The area equipped for irrigation is mainly in north Sughd (Syr Darya basin), 282 374 ha, and south Khatlon (Amu Darya basin), 336 158 ha. Because of the lack of investment the country annually develops only 700–1 200 ha, which is around ten times less than necessary according to the ‘Water sector development strategy for 2010–2025’ (MLRWR and OSCE, 2009). In 2008, the area actually irrigated was an estimated 674 416 ha, or approximately 91 percent of the equipped area.
In northern Tajikistan, where irrigation is mainly based on the water resources of the Syr Darya river, water is (80 percent) delivered by pumping stations. The Tajik part of the Hunger steppe is bordered in the northwest by Uzbekistan. This region belongs to a semi-arid zone and the irrigated area is about 39 000 ha and mainly used for cotton. Water is taken from the Farkhad power plant diversion canal in two stages by remote-controlled pumping stations, which lift the water to 170 m. In 1994, the total power irrigated area was an estimated 318 000 ha.
Surface irrigation is the only irrigation technique used in Tajikistan. Drip, sprinkler and micro-sprinkler irrigation technologies have been used in a small area only at the experimental level. It is expected, however, that increased power tariffs will accelerate the spread of modern and water-saving technologies in pump-fed irrigation areas. In 1994, furrow irrigation was practised on over 96.3 percent of the equipped area and borderstrip irrigation on about 1.7 percent. On hill slopes the irrigation delivery network for gardens and grapes was comprised of pipes (2 percent). The irrigation technique used on fields is also surface irrigation. Cascade irrigation is practised on around 14 000 ha for rice cultivation.
All irrigation is full control irrigation. In 1994, out of a total area equipped for irrigation 719 200 ha, about 68 000 ha (or 9.4 percent) were irrigated with groundwater and about 25 000 ha (3.5 percent) agricultural drainage water and wastewater was used. Water pumped from rivers provided some 250 000 ha (34.8 percent); elsewhere water was gravity fed from river diversions (24.5 percent) or reservoirs (27.8).
In 2009, surface water irrigated about 696 476 ha (or 93.9 percent of total full control irrigation area), groundwater about 32 500 ha (4.4 percent) and about 13 075 ha (1.8 percent) mixed surface water and groundwater (Figure 3) was used. Monitoring of direct use of agricultural drainage water and treated wastewater is difficult. Water pumped from rivers irrigates 298 500 ha.
In 1994, the total length of the irrigation canal network was about 33 250 km. The length of the main canals and the inter-farm network was 27 991 km, of which 38 percent were concrete canals. On-farm canal networks totalled 5 259 km, with 13.3 percent concrete canals, 21.9 percent pipes and the remaining 64.8 percent unlined earthen canals. Water losses between the source and the fields depend on canal conditions and vary from 50 to 65 percent; field water use efficiency varies from 55 to 70 percent. Total water use efficiency ranges from 27 to 46 percent.
In Tajikistan, as with other Central Asia countries, large-scale irrigation schemes prevail. Large-scale schemes (>3 000 ha) cover 652 000 ha (88 percent), medium-scale irrigation schemes (500–3 000 ha) cover 50 000 ha (7 percent) and small-scale schemes (<500 ha) in mountainous areas, cover the remaining 40 000 ha (5 percent) (Figure 4). In 2009, approximately 62 percent of farms were privatized, 16 percent were family farms and 22 percent public.
In 2009, total harvested irrigated cropped area was an estimated 729 283 ha. The main irrigated crop in Tajikistan is cotton, accounting for 237 130 ha or 33 percent of total irrigated harvested area. Around one million rural people are involved in cotton production and processing. The area has decreased since 1990, when it accounted for 300 000 ha. During the Soviet era, Tajikistan had the highest cotton yield in Central Asia, with a national average yield of 3 tonnes/ha. During the last 5 years, however, the yield barely achieves 1.6–1.7 tonnes/ha. The second largest area is irrigated wheat with 179 742 ha (25 percent). After harvesting of wheat in June–July, farmers sow maize for forage, vegetables and legumes as a second crop. In the mountainous Badakhshan region, and other districts over 1 500 m, wheat harvesting months are July and August. Temporary and permanent fodder and permanent meadows and pastures account for 83 234 ha or 11 percent of the harvested irrigated cropped area, vegetables represent 37 162 ha (5 percent) and other perennial crops 98 957 ha (14 percent) (Figure 5 and Table 5). Cotton, fruits and grapes were the most important export crops during the 1990s.
Around 95 percent of agriculture production comes from irrigated areas. Rainfed land is mainly located upland where wheat is grown and there are pastures. The wheat yield in rainfed areas is very low, 1.2–1.8 tonnes/ha.
If water is available in winter, farmers irrigate to improve soil conditions. In pump irrigation areas winter irrigation is not practiced.
Annual expenditure for operation and maintenance (O&M) of irrigation and drainage systems is an estimated US$68.8 million. The costs of irrigation development and rehabilitation are higher in Tajikistan than in downstream countries, mainly because of the need for pumping and erosion control. In 1999, the average cost of irrigation development was an estimated US$10 000–18 000/ha for large-scale surface irrigation schemes using standard modern technologies, including agricultural development. Estimated cost of implementation would be US$2 500–5 000/ha if localized irrigation were to be developed on existing irrigated land.
Total area equipped for irrigation, also equipped with a drainage system, amounts to 345 200 ha, including 69 200 ha of subsurface drainage (20 percent) (Table 5). Because O&M is inadequate, a substantial portion of subsurface drainage is currently not used. In 2008, 19 364 ha of medium salinization and 3 871 ha of high salinization (toxic ions exceeding 0.5 percent of total soil weight) were monitored. Unsatisfactory land conditions for agricultural use were estimated on 43 474 ha, of which 54 percent is the result of waterlogging.
According to MLRWR data new drainage systems need to be constructed on 7 000 ha, existing drainage systems rehabilitated on 23 400 ha and soils leached on 14 200 ha. The water table has risen because of water losses from the irrigation network. Modernization and rehabilitation of the on-farm irrigation network on 449 600 ha can lower the water table considerably and increase agriculture production efficiency.
Because of increased fuel prices over the last 5 years, the cost of excavation work has increased and, accordingly, there has been a three-fold increase in the cost of drainage construction and rehabilitation. The average cost of surface drainage development is an estimated US$1 500–1 800/ha and that of subsurface drainage development US$1 500–2 000/ha.
Interdepartmental coordination of water resources management is carried out by the government. Water management involves many government organizations: Ministry of Land Reclamation and Water Resources (MLRWR), Ministry of Energy and Industry, Ministry of Foreign Affairs, Ministry of Agriculture, Ministry of Economical Development and Trade, Ministry of Health, Ministry of Justice, State Unitary Organization on Water Supply, State Inspectorate on Mining and Technical Supervision, State Committee on Environmental Protection, State Committee on Land Management and Geodesy, National Geological Agency, Committee on Emergency Situation and Civil Protection.
Institutionally, water management follows a hierarchy: state, province, district, farm or water user association (WUA). The first three levels fall under the MLRWR, which is responsible for the planning and management of water resources for agriculture, water distribution and delivery to the farm inlet, assistance to the water users for implementation of advanced technology and control of water use and water quality. The special reclamation services at provincial level are the responsibility of the MLRWR, which monitors irrigated land (groundwater level, drainage discharge, soil salinity) and plans maintenance and improvement of soil conditions, including leaching, repair and cleaning of collectors and drainage network and rehabilitation. O&M, rehabilitation and modernization and construction of new irrigation schemes, inter-farm level irrigation and drainage networks have been implemented by the Ministry and its subdivisions in viloyats (provinces).
MLRWR is a member of the ICWC of Central Asia countries.
The Ministry of Agriculture is in charge of agricultural research and extension, as well as farm-level agricultural and land reclamation development, and operation and maintenance of the irrigation network.
The State Unitary Enterprise Khojagii Manziliu Kommunali is responsible for domestic water supply and the treatment of wastewater. The Committee on Nature Protection is responsible for the protection of water resources.
WUAs in Tajikistan are a new initiative to manage water structures on irrigated areas belonging to the former kolkhoz (collective farms) and sovkhoz (state [Soviet] farms). In 1994, there were 297 000 households on 262 kolkhoz, occupying 48.4 percent of the cultivated area, and 199 700 households on 393 sovkhoz, occupying 44.3 percent of the cultivated area. Private plots and land leased to state-farm employees (about 33 000 households) totaled about 7.3 percent of the cultivated area. During land reform (1996–2000) kolkhoz and sovkhoz were privatized and divided into a number of small, private (dehkan) farms. There are WUAs on irrigation schemes of 1–500 ha each. Currently, WUAs cover almost 35 percent of the irrigated area, but they remain weak. District-level state water management organizations supply water to WUAs gates on a contract basis and these implement on-farm water management. In some areas, several WUAs have established a federation of WUAs. Because agriculture is inefficient and low incomes, often farmers are unable to pay water fees to the state water management organizations.
The MLRWR established the Support Unit to assist WUAs. A number of international and local NGOs conduct training and provide technical assistance to increase the capacity of the WUAs.
A water fee system has been in place since 1996 for the supply of irrigation water services from state water management organizations. The current financial mechanism has shortcomings and will be settled during upcoming irrigation reform.
MLRWR accords actual expenditures of O&M, including electricity price, and estimates the water fee, which is provided to the Ministry of Economy Development and Trade for its approval. The water fee is rated 2–6 times less than required to ensure adequate O&M of the irrigation and drainage systems, especially for pump irrigation. Some of these lift irrigation systems are not economically viable under current energy costs and economic conditions. These systems, built in the Soviet period without any economic considerations, pump in what is called a cascade system consisting of 4, 5 and up to 6 stages of pumping. The current water fee for gravity irrigation is US$4.13/1 000 m3 and US$6.58/1 000 m3 for pump irrigation (including 20 percent VAT). The recent increase in the price of electricity will influence changes to the water fee for irrigation services.
The government annually subsidises construction of irrigation infrastructure on 700–1 000 ha.
Since 2000, rehabilitation of irrigation and drainage facilities, pump stations and pressure pipes has cost more than US$200 million, funded mainly by the Asian Development Bank (ADB) and World Bank investments and grants.
The current legal basis for water management is the ‘Water Code of Tajikistan’, adopted in 2000. The main target of water legislation is to ensure water supply to users. A previous ‘Water Code of Tajikistan’ was signed in 1993.
The WUAs Law was adopted in 2007, which provided a legal basis for the establishment and development of WUAs to improve on-farm water management within the bounds of privatized former kolkhoz and sovkhoz.
There are almost 50 laws linked to water management.
The environmental problems in Tajikistan are the result of its climate, natural conditions (steep slopes), land-use change and the structure of the national economy. Erosion affects 97 percent of agricultural land and is a major threat to sustainable agriculture, particularly in hilly areas. In the löss zone, steep slope grazing land has been converted to cultivated agriculture over the last 15 years resulting in significant loss of sediments, which has caused damage downstream.
The irrigated area is subject to substantial erosion, landslides, sagging and deformation. The area affected is an estimated 45 000 ha. Irrigation development in the foothill zone, especially in the more stony areas, induces increasing groundwater recharge, intensifying waterlogging and salinization of the lower areas and increasing sediment-loaded drainage water runoff. Collector-drainage water is the principal water polluter (common salinization, pesticides and other waste). Environmental pollution is increasing as a consequence of industrial production.
The two major land quality problems are the interrelated issues of salinity and waterlogging, caused by high groundwater levels. Salinization of irrigated land in lowland areas has increased because of inadequate drainage systems, low irrigation efficiency resulting in high water losses. The total area salinized by irrigation is 23 235 ha. The area waterlogged in irrigation areas is 25 742 ha.
Except for some lakes and groundwater sources, the water quality is considered drinkable. General salinity level of water at source is 0.05–0.40 g/litres.
According to research during the Soviet era, around 10–12 percent of irrigation water supplied to fields leaches to aquifers, and around 40 percent returns to rivers. In the Amu Darya river basin Tajikistan withdraws only 10–12 percent of the annual river flow, thus changes to water quality are insignificant.
Mud torrents occur mostly in the Zeravshan river basin on average 150 times/year and in the Vakhsh and Panj river basins on an average of 70 times/year, mostly in April (35 percent) and in May (28 percent). There are 102 mud torrents, hazardous rivers and annual mud torrents and floods result in great damage to the country. Flood damage alone in 2005 amounted to US$50 million (MLRWR and UNDP, 2006).
The Committee on Emergency and Civil Protection and MLRWR manage floods and mudflows. Lack of equipment, materials and capacity, however, has led to inefficient hazard mitigation measures.
Around 2 012 km of bank protection dykes and mud torrent discharge channels have been constructed to protect social and economic infrastructure. Reservoirs play an important role in protection of property and infrastructure from floods and mud torrents.
The objective of water sector reforms is to create an efficiently planned, developed and managed water sector based on sound policies, joint analysis and management of groundwater and surface water. The different water using sectors are balanced, using the basin as the management area, to secure economic benefit to Tajikistan, without compromising ecological integrity. This water sector reform has adopted the guiding principle of integrated water resources management (IWRM).
District-level state water management units will be included in Basin Water Management Organizations (BWMO). The BWMOs will transfer all water management responsibility in stages to WUAs for secondary and tertiary canals . In some cases WUAs will manage water at the primary canal level. Establishing the new tandem management structure BWMO+WUA is fundamental to the introduction of IWRM in Tajikistan. The government expects to create 11 BWMOs: Syr Darya, Istarafshan, Zeravshan, Gissar (Hisor), Rasht, Yavan, Dangara, Kulob, Lower Kofarnihon, Vakhsh and Badakhshan.
Establishment of WUAs has started at the secondary and tertiary canal level, the government aims to cover all irrigated areas with WUAs. The relationship between state BWMOs and non-government WUAs will be based on water supply contracts. The main goal of government irrigation reform is to reduce state budget expenditures for O&M for irrigation and drainage systems. Although the government subsidizes only 10–15 percent of requested expenditures for O&M, efforts are directed to the establishment of self-funding water resources management systems. It seems difficult, however, to cover the highest cost systems (highest lifts) of water supply services. The drought mitigation strategy includes introducing water-saving measures in the summer and limitation of water intake from sources for all economy sectors during drought years. The aim of the ICWC is to reduce the regions water intake quotes by 10–25 percent.
The deteriorating condition of irrigation and drainage, water supply and sanitation infrastructure has forced the government to pursue investment from all accessible sources. State investment and water fees are insufficient to rehabilitate infrastructure.
Several key issues must be addressed for the effective implementation of water sector reforms. These include the formulation of an investment and realistic finance plan for the implementation of water sector reform; application of water related reform laws; inventory of irrigation systems and prioritization of the most viable for modernization/rehabilitation; support to WUAs for the successful O&M of irrigation and drainage systems with the application of a fair and realistic tariff system; and support to alternative high cost systems (high lift systems) to sustain livelihoods in upland areas.
With the participation of international organizations and experts, the government aims to reform the water sector and transfer the centrally planned economy to a real market economy. This will change cropping patterns in irrigated areas. As a result, farmers will become interested in adopting water-saving irrigation technologies for economic reasons and, therefore, contribute to the preservation of the environment.
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Dukhovny V.A. & Sorokin G.A. 2007. Assessment of impact of the Rogun reservoir to water regime of Amudarya River. Tashkent, Sepang International Circuit – Interstate Commission for Water Coordination.
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.
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