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Bibliographic entry 30

Author: Gïel'dyïeva G.V.

Title: Untitled (Karty antropogïennykh izmïenïeniï landshftov; Map of landscape changes resulting from human activity)

Publisher: Not published

Date: approx. 1980-93 Language: Russian
Available: Gïel'dyïeva G.V., Institute of Geography (Russian: Institut Gïeografii; Kazakh: Gïeographiïa Instituty) of the Academy of Sciences of Kazakhstan, Alma Ata.
Classification: 1C4 (cartography), 2A1-4, 2B2a-b
Region: Kazakhstan, drylands of Central Asia
Summary: A collection of maps at various scales (mostly 1:250,000 to 1:2,500,000) showing changes in the natural environment caused by human activities.
A map of the entire arid region of Central Asia (1:2,500,000); maps of the eastern shores of the Aral Sea and lands located on the shores of Lake Balkhash.
The maps, without indicating the degree of desertification or the degree of danger of desertification, show the regions where vegetation has deteriorated due to lack of water, lands where there has been excessive deforestation, degraded rangelands and zones with high salinity. On some of these maps the changes in lake shorelines are marked as well as various types of dried seabed. Other maps show sand dune formation. These maps were drawn up on the basis of the landscape map of Kazakhstan (1:2,500,000) and the research material which was used in preparing it (cf. bibl. entry 2). In 1993 work was carried out primarily in the region of Lake Balkhash.

Desertification: This term is used to designate those lands which undergo processes caused by natural factors or, more often, by human activity, which consist of a decrease in groundwater resources, vegetation degradation, the development of erosion, especially wind erosion (this information was obtained during an interview).

Bibliographic entry 31

Author: Gïerasimov I.P., Kuznïetsov I.T., Kïes' A.S., Gorodïetskaïa

Title: Problïema Aral'skogo morïa i antropogïennogo opustynivaniïa Priaral'ïa (The problem of the Aral Sea and desertification in the surrounding area)

Publisher: Problïemy osvoïeniïa pustyn', N° 6, pp. 22-23, Ashkhabad

Date: 1983 Language: Russian
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 2A1-4, 2B2f, 3C3, 4A1-4, 4B, 4C, 5A1-2, SD2b
Region: Aral Sea
Summary: Extensive and detailed information on the decline of the Aral Sea, the degradation of the natural environment and hydrological conditions in the surrounding area. The first sand and salt storms appeared on the seabed in the 1970's. They occur 6 to 9 times per year and their range reaches 400-450 km to the west and southwest.
The article examines the process of desertification affecting the shores of the Aral Sea and the Amu-Darya and Syr-Darya deltas. This is one of the first texts to discuss the economic and social losses resulting from the decrease in level of the Aral Sea. In 1980 losses were 92.6 million roubles which included: 39.1 million roubles in agriculture (cotton cultivation 30 million, livestock production 8.0 million, others 1.1 million), 28.9 million in fishing, 7.0 million in transport and 6.9 million roubles in hunting. Several detailed examples supplement this estimation; for example, in the Kyzyl-Orda oblast (district), milk production of cows has decreased two-fold, down to 998 kg/year in the kolkhozes and 724 kg/year in the sovkhoses.
There is a deterioration in the health of the local population due to the mineralization and poor quality of water from the Syr-Darya.
A brief review of methods of combating desertification due to human action is presented (pp. 29-32). There are projects in the following fields: scientific research and planning, socio-economic measures, water balance, and others.

Methods of combating desertification caused by human activities:

1. Scientific research and the preparation of technical projects;

2. Socio-economic action (very general information is given on the necessity of creating new branches of the economy to open future prospects, such as the construction materials industry, and on the necessity of providing the nomad population with good quality drinking water;

3. Water management programmes (diversion of drainage water to the Aral Sea instead of to the Sarykamysh depression);

4. Improvement projects (in particular, the revegetalization of the Aral seabed).

Bibliographic entry 32

Author: Glazovski N.F.

Title: The Aral Crisis. Source, Current Situation and Way Out

Publisher: Artobolevskiy S.S., Kuklin' ski A., "USSR in the Perspective of Global Change," pp. 167-199, Polish Association for the Club of Rome, Warsaw, Globality versus Locality, vol. 3.

Date: 1991 Language: English
Available: ex-Soviet Union - private collections, WGiSR UW Warsaw
Classification: 2B2f, 5D2a-b
Region: Aral Sea
Summary: A study of various proposals for saving the Aral Sea. General information.
The author analyzes:

- the change in the general strategy for developing productive forces; -
- changes in the structure of agriculture;
- the reconstruction of irrigation systems;
- scientific justification for lowering the standards for irrigation and modern irrigation technology;
- rational use of drainage;
- the change in the structure of agriculture and increase in agricultural plant diversity;
- transfers of water from the Caspian Sea to the Aral Sea; transfer of a portion of the water of Siberian rivers;
- increasing the stream flow by stimulating precipitation; intensification of glacier melting;
- regulating the course of rivers;
- diverting water from lakes and reservoirs to the Aral Sea;
- decreasing the flow of drainage water conducted to the Aral Sea;
- the demineralization of water by freezing;
- the large-scale use of groundwater;
- the creation of water reservoirs in the Aral Sea.

Bibliographic entry 33

Author: Glazovski N.F.

Title: Sovrïemïennoïe solïenakaplïeniïe v aridnykh oblastïakh (Current salinization conditions in drylands areas)

Publisher: Naouka (Akademiïa Naouk SSSR - Academy of Sciences of the USSR, Moscow, 192 pp.

Date: 1987 Language: Russian
Available: BiL Moscow, IG RAN Moscow, WGiSR UW Warsaw
Classification: 2A2, 2B2a, 2B2h, 2B2j
Region: Kazakhstan, Dagestan, Azerbaijan, Turkmenistan, Uzbekistan, Kyrgyzstan, Tajikistan
Summary: Detailed analysis of salt migration in the groundwater of arid and semi-arid regions in the ex-Soviet Union (without definitions or boundaries). Twenty-eight basins or groups of basins are identified. Characteristics of flow and salinization (quantity, composition of groundwater) are shown on several charts. The quantity of salt carried by groundwater to the Caspian Sea, Lake Balkhash and Issyk-Kul' is estimated. The effect on soil salinization of using deep groundwater is discussed; in certain regions it is the chief factor in the salinization of lands. Although the facts are not complete, a minimun of 7 million tonnes of salt are estimated to enter the soil each year through groundwater. On the Apsheron Peninsula, oil exploitation brings in 1 million tonnes of saline water per year, and in Dagestan the use of groundwater brings in yearly almost 2.7 million tonnes.
In this work there is also an interesting study of salt migration in the atmosphere: mechanisms by which salt enters the atmosphere (deflation), return of salt to the soil, an attempt to estimate the extent of this phenomenon.

Note: A very extensive bibliography, almost exclusively in Russian.

Bibliographic entry 34

Authors: Glïants M.K. (Glanz M.H.), Zonn I.S., Orlovskiï N.S.

Title: Ob oprïedielïenii protsïessa opustinivaniïa (Definitions of the Process of Desertification)

Publisher: Problïemy osvoieniïa pustyn', No 2, pp. 3-12, Ashkhabad

Date: 1984 Language: Russian
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 1A
Region: -
Summary: This publication presents different definitions of desertification, from A.M. Aubréville (1949) * to L.I. Kurakova (1983). Most of these definitions are presented in a chart where factors and symptoms of desertification are classified. The definition according to L.I. Kurakova (1983) is given below. The authors point out that in defining desertification the following factors are emphasized: long-term climate trends, climate fluctuations, droughts, methods of soil use, overgrazing, collecting fuelwood, "use of technology" (routes, mines, etc.)
* A, M. Aubréville, Climats, forêts et désertification de l'Afrique Tropical (Climates. Forests and Desertification in Tropical Africa), Paris, 1949

Definition: Factorial definition of desertification according to L.I. Kurakova: Factor irrational use of ecosystems by man in arid lands or lands subject to drought; symptoms deterioration of the condition of the natural environment in arid and semi-arid zones, manifested by the appearance and development of processes characteristic of deserts: the degradation of vegetation and soil, the disappearance of water resources and a rapid decrease in biological productivity.

Bibliographic entry 35

Author: Grigorrïev A.A.

Title: Krupnomashtabnyïe izmïenïeniïa prirody Priaral'ïa po nabliudïeniïam iz kosmosa (Large-scale environmental changes in the area surrounding the Aral Sea as seen in satellite imagery)

Publisher: Problïemy osvoïeniïa pustyn', N° 1, pp. 16-21, Ashkhabad

Date: 1987 Language: Russian (summary in English)
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 2A1-5, 2B2f, 4A
Region: Aral Sea
Summary: For over 25 years, changes in the Aral Sea region have been observed by means of satellite imagery. From 1961 to 1984 the level of the sea decreased by 10 m (an average of 0.45 m per year). Five zones were identified and studies were made of the primary natural and man-made processes in the regions in question:

1) The region of the mainland showing the formation of marshes and wetlands, and dry areas (25 to 50 km wide);
2) The formerly underwater zone, now dried up, 40 to 50 km wide with an area of 21,000 km2, covered with initial vegetation;
3) The Syr-Darya and Amu-Darya deltas, formerly marshy areas partially covered with riverside forest. Today, the water table has lowered from 3-5 m to a maximum of 8 m. The deterioration of vegetation, salinization of marshes and desertification are evident;
4) The 30-40 km zone of deserts in the seaside area. The drying up of the sea has caused the upper level of groundwater to lower by 5-9 m;
5) The zone which includes all the deserts and semi-deserts as well as irrigated regions which manifest acute changes resulting from human activity.

Bibliographic entry 36

Authors: Kharin N.G., Kiril'tsïeva A.A.

Title: Novyïe dannyïe o ploshtchadïakh opustynïennykh zïemïel' v aridnoï zonïe USRR (New data on the area of lands affected by desertification in the drylands of the USSR)

Publisher: Problïemy osvoïeniïa pustyn', N° 4, pp. 3-8, Ashkhabad

Date: 1988 Language: Russian (summary in English)
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 2A, 2B2a
Region: USSR drylands, particularly Kazakhstan, Turkmenistan, Uzbekistan
Summary: Data presented at the Nairobi Conference (1977), published in "World Desert and Desertification Map," UNESCO/CNRS, Paris, 1976. These data do not show the true extent of desertification. A chart is presented showing the regions threatened by desertification (Kazakhstan, Uzbekistan, Turkmenistan) and a classification of the areas where the following phenomena are evident:

- degradation due to overgrazing (37.3% of the area of these republics);
- degradation due to insufficient grazing;
- regions affected by wind erosion (3.3%);
- salinization caused by the decrease in level of the Aral Sea and by regulating the stream flow of rivers (5.3%);
-desertification caused by modernization (6.5%);
- water erosion.

All in all, the regions affected by desertification cover 60.2% of these regions (Uzbekistan 59.2 %, Kazakhstan 59.9%, Turkmenistan 66.5 %). The text also presents schematic maps of drylands in the USSR: degree of desertification, rate of desertification in the years 1965-1985, intrinsic danger of desertification. One map shows the resistance on the part of ecosystems and the influence of animals on the natural environment. On each map, four degrees of this phenomenon are identified: absence, light, moderate, strong.

Bibliographic entry 37

Authors: Kharin N.G., Orlovskiï N.S., Kogaï N.A., Makul'bïekova G.B.

Title: Sovrïemïennoïe sostoïaniïe i prognoz opustynivaniïa v aridnoï zonïe SSSR (Current conditions and forecast for desertification in drlylands of the Soviet Union)

Publisher: Problïemy osvoïeniïa pustyn', N° 5, pp. 58-66, Ashkhabad

Date: 1986 Language: Russian
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 1B, 1C4 (cartography), 2A, 2B2a, 3B
Region: Soviet Central Asia and Kazakhstan
Summary: Short description of the climate of drylands in the ex-USSR, notably droughts which (according to the article) are instrumental in the process of desertification because they contribute to an increase in the earth's albedo. Presentation of a formula for the danger of desertification (cf. Note). A desertification map of arid and semi-arid lands in the ex-USSR was drawn up to the scale of 1:2,500,000 (reproduction of a generalized form of the map - page 31). This map takes into account detailed analyses of vegetation changes, wind and water erosion, desertification caused by modernization and the salinity of irrigated lands. The article indicates which aspects were considered, e.g., vegetation changes, but their boundaries are not shown. The map was prepared using aerial photos and satellite imagery.
Towards the end of the article, regional examples are given which illustrate the size of desertification.

Bibliography: 34 titles.

Note: SOO danger of desertification:

SOO = SS + TO + VOO + VJP + SAV, where:

SS - current state of the natural environment; TO - rate of desertification; VOO - intrinsic vulnerability of ecosystems to desertification; VJP - influence of animals on the natural environment; SAV- degree of direct human influence on the natural environment.

Bibliographic entry 38

Authors: Kharin N.G., Petrov M.P.

Title: Glossary of Terms on Desert Environment and Land Reclamation

Publisher: Ylym, Ashkhabad, 144 pp.

Date: 1975 Language: English
Available: BiL Moscow, WGiSR UW Warsaw
Classification: 1A
Region: Global
Summary: This work was prepared for the International Geographical Congress which took place in Moscow in 1976. It is a dictionary containing more than 1,200 entries, mainly in the field of physical geography, relating to arid and semi-arid lands and humid savannahs in Africa and South America.
"Aridification" is defined as a natural process of decreasing precipitation and the intensification of evapotranspiration.

Definition: "Desertification = the process whereby a desert becomes a region devoid of life. During this process all signs of organic life are reduced and the desert environment slowly changes into a "dead desert." Desertification is habitually related to the improper use if arid lands. The desiccation which often accompanies desertification accelerates the process. "

Bibliographic entry 39

Author: Kharin N.S.

Title: Primïenïeniïe distantsionnykh mïetodov dlïa izucheniïa protsïessov opustynivaniïa v aridnoï zonïe (Use of satellite imagery to analyze the process of desertification in drylands)

Publisher: OON. Mïejdunarodnyï uchïebnyï sïeminar OON po praktichïeskomu primïenïeniïu zïemli v oblasti lïesnogo khozïaïstva, Moskva 21/5 - 916184. (UN. United Nations international scientific seminar on the application of remote sensing to forest management, Moscow, 21/5 -916184), 16 pp.

Date: 1984 Language: Russian
Available: BiL Moscow
Classification: 1C1
Region: Central Asia, Turkmenistan
Summary: The author presents different estimations made by researchers of the total area of moving sands in Turkmenistan. The figures vary from 13,200 km2 to 40,000 km2. Aerial photos and satellite imagery are necessary for analyzing wind erosion, using the same criteria and classification for both. Unfortunately, this is not always possible. The author presents the criteria for measuring wind erosion according to "Provisional Methodology for Assessment and Mapping of Desertification", FAO, 1983 (p. 5). He also gives the criteria used by the Institute of Deserts of Ashkhabad (pp. 8-9), which are only a simplification of those used by FAO (degree of desertification - 4 categories instead of 5, rate of desertification - 2 instead of 4, danger of desertification - 3 instead of 4). Unfortunately, the author has not explained the criteria for the simplification.

Bibliographic entry 40

Authors: Kiïevskaïa R.K., Mozhaïtsïeva N.F., Bogachïev V.P.

Title: Izmïenïeniïe prirodnykh uslovii sovrïemïennoï dïelty Syrdar'i v svïazi s zarïegulirovanïem ïeïe stoke (Environmental changes in the present-day Syr-Darya delta resulting from water use)

Publisher: Problïemy osvoïeniïa pustyn', N° 4, pp. 11-17, Ashkhabad

Date: 1979 Language: Russian
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 2A4, 2B2b, 3C3, 4A2
Region: Kazakhstan (Syr-Darya)
Summary: An alarming document on land degradation. The regulation of the flow and the use of water of the Syr-Darya have produced catastrophic effects. At Kazalinsk, the annual flow decreased from 9.8 km3 in 1960 to 0.61 km3 in 1975. During the last decade, the area of irrigated land in the lower part of the river has diminished. The depth of groundwater has lowered by 3.0-4.5 m. Lakes such as Kauk, Kokkol, Tabankol, and others have dried up. The vegetation has undergone important changes. On three experimental areas detailed analyses (1:25,000) of vegetation types and the* productivity (charts pp. 14-15) have been made. In each case, a significant decrease in the productivity of vegetation was observed:

- area located in the upper part of the delta (337 ha): from 5,181 tonnes to 1,947 tonnes;
- area located in the middle of the delta (337 ha): from 581 tonnes to 351 tonnes;
- area located in the lower part of the delta (280 ha): from 642 tonnes to 258 tonnes.

Bibliographic entry 41

Authors: Koksharova I.H., Isakov G.J.

Title: O lïesomïelioratsii osushïennogo dna Aral'skogo Morïa (Revegetalization of the dried up Aral seabed)

Publisher: Problïemy osvoïeniïa pustyn', N° 5, pp. 48-55, Ashkhabad

Date: 1985 Language: Russian
Available: BiL Moscow, IG RAN Moscow, KR FAK Alma Ata, WGiSR UW Warsaw, UAM Poznan
Classification: 2A3, 2B2f, 5C2, 5C4
Region: Central Asia, Kazakhstan, Aral Sea
Summary: During the last twenty years, the catastrophic decrease in the level of the Aral Sea has caused the drying up of 1.5 million ha of seabed. 300,000 ha of this are today sandy, non-saline areas with the ground covered by the spontaneous growth of psammophytes. These areas are perfectly suited to the planting of shrubs. Diverse species of plants were introduced experimentally in a variety of places and topographical situations. Results have been promising. During the subsequent two years the growth of these plants was recorded - from 80 to 150 cm, their capacity to survive, generally satisfactory, varies according to the topography.
The revegetalization of slightly saline lands has also begun. Strips of shrubs visibly limit wind processes.
The afforestation of sandy areas of the seabed is recommended on a larger scale.

Species planted in the Aral seabed: Haloxylon aphyllum (Minkw) Iljin, H. persicum Bunge, Calligonum caput-medusae Schrenk., Tamarix hispida Willd. and others.

Bibliographic entry 42

Author: Komarov B.

Title: Le rouge et le vert. La destruction de la nature en URSS (The Red and the Green: the destruction of nature in the USSR)

Publisher: Seuil, Paris, 218 pp.

Date: 1981 Language: French (see Note)
Available: Centre International des Recherches sur l'Environnement et le Développement, Maison des Sciences de l'Homme, Paris; in Moscow private collections
Classification: 2A2-4, 3D (communist system)
Region: Ex-Soviet Union
Summary: A dissident study of the degradation of the natural environment in the ex-Soviet Union, concerned especially with chemical pollution in the entire country and the deforestation of Siberia.
The term "desertification" is virtually absent and only appears in the analysis of the problem of the decline in the area of arable lands.
The author points to the significant losses in water during irrigation (40-70 % by evaporation and infiltration from the Karakumy and South Fergana Canals), the erosion and salinization of irrigated soil in Central Asia, wind erosion in the steppes of Kazakhstan and the Kalmyk republic.
The area of lands so degraded by human action as to be no longer cultivable is estimated to be 1.45 million km2 including 630,000 km2 which are degraded because of salinization and erosion (as of 1977).
The political system is blamed as the primary cause of this state of affairs (centralized planning, huge industries, lack of respect for nature, lack of respect for the law).

Note: This book is published in Russian: B. Komarov, Unichtozhïeniïe prirody, Posser Verlag, Frankfurt/Main, 1978; and in English: B. Komarov, The Destruction of Nature in the Soviet Union, Pluto Press, London. This book has sensitized the countries of Central Europe and Soviet dissidents in the, USSR to ecological problems. It is little known in the USSR.

Bibliographic entry 43

Authors: Kotlïav V.M., Glazovski N.F., Mukitanov N.K., et al.

Title: Osnovnyïe polozhïeniïa kontsïeptsii sokhranieniïia i vosstanovlïeniïa Aral'skogo rïegiona, normalizatsii ekologichïeskoï, sanitarno-gigiïenichïeskoï, mïediko-biologichïeskoï i sotsial'no-ekonomichïeskoï situatsii v Priaral'ïe (Main ideas for safeguarding and restoring the Aral Sea, and the ecological, sanitary, medico-biological and socio-economic normalization of the situation in the Aral Region)

Publisher: Izvïestiïa Akadïemii Naouk SSSR, serïa Gïeografishïeskaïa (Geography series), N° 4, pp. 8-22

Date: 1991 Language: Russian
Available: BiL Moscow, IG RAN Moscow
Classification: 2B2f, 5C5
Region: Aral Sea
Summary: Beginning in the 1970's, the level of the Aral Sea has decreased by 14 15 meters, the salinity of the water has tripled and 200 species of flora and fauna have disappeared. The absence of economic structures appropriate to the vulnerability of these ecosystems is the main reason for the Aral crisis. Four environmental scenarios are possible in the future: 1) natural: level of the sea above 50 m; 2) changed: level of the sea above 40 m; 3) two separate "sea-lakes"; 4) three separate "sea-lakes" with a level of less than 36 m and very high salinity. Main proposals for solving these problems: changes in the cotton industry; elimination of waste in agriculture (15-40% of production is wasted); substitution of synthetic fibres for cotton; reduction in the surface area of rice cultivation; restructure of irrigation systems; introduction of modern technology for irrigation and revegetalization. By these means it would be possible to achieve the second type of environmental condition. To implement this program, three stages are proposed: I. 1991-1995 (cost: 21 billion roubles); II. 1996-2000 (35 billion roubles); III. 2001-2010 (10 billion roubles). Total cost: 66 billion roubles at the 1991 value. Water taxes and state, foreign and private investment would be the main financial sources.

Bibliographic entry 44

Author: Kovda V.A.

Title: Problïemy bor'by s opustynivaniïem i zasolïeniïem oroshaïemykh pochv (Problems in Combating Desertification and Salinization of Irrigated Lands)

Publisher: Kolos, Moscow, 304 pp.

Date: 1984 Language: Russian
Available: BiL Moscow, WGiSR UW Warsaw
Classification: 2A2, 2B1, 2B2, 2B2a, 5C3, 5D1c
Region: Arid and semi-arid regions of the ex-USSR - Central Asia, the Caucusus - and the world
Summary: This document presents the principal saline regions of the world, illustrated with schematic maps showing the distinctive features of the salinization of groundwater and soil, and the geochemical classification of desert regions, illustrated with examples from the ex-Soviet Union and other regions of the world. Maps showing the mineralization of groundwater and soil in selected deserts and semi-deserts of the ex-Soviet Union are also presented, as are charts showing the chemical composition of groundwater and soil, a description of different methods of desalinization applied throughout the world and in the USSR in particular, and the possibilities of using saline water for irrigation. The efficiency of these desalinization methods depends on the chemical characteristics of the soil; where there is chloride or sulphate in the soil, one chemical treatment is sufficient, whereas the presence of sodium requires several treatments. Thanks to effective treatments, salinization has been reduced in several regions of the USSR (in Tajikistan, 35% of irrigated soil was formerly saline; in 1972 only 9% remained saline).

Geochemical classification of deserts:

1. Saline deserts and desert steppes (with chlorine and nitrate);
2. Calcareous and gypseous deserts;
3. Clay deserts with takyrs;
4. Sand deserts

Bibliographic entry 45

Authors: Lalymïenko K.K., Lalymïenko I.I., Bïerdyïev S.

Title: Osvoïeniïe takyrovykh pochv s ispol'zovaniïem mïestnogo povïerkhnostnogo stoke (Management of the soils of takyrs using local surface waters)

Publisher: Ylym - Academy of Sciences of Turkmenistan, Ashkhabad, 286 pp.

Date: 1983 Language: Russian
Available: IP Ashkhabad, WGiSR UW Warsaw
Classification: 5C4, 5C1, 5C5
Region: Turkmenistan
Summary: This is a technical report on the development of takyrs. In the ex-Soviet Union, deserts of takyrs cover more than 13 million hectares and the prospects for their economic use are considered as poor as for solonchaks. Takyrs are entirely, or almost entirely, devoid of vegetation. This document gives a very detailed description of the soil structure and the chemical composition of water in takyrs. Successes in developing takyrs using artificial irrigation near the Karakumy Canal are described. Attempts made in western Turkmenistan in the 1950's to plant black saxaoul without irrigation completely failed. There are new projects to construct a network of deep canals on takyrs connected to shallow furrows that collect water for the irrigation of selected areas. One cultivated hectare requires the collection of water from 15-25 hectares. The authors provide examples of the formation of furrows and the distances between them. The planting of black saxaoul was started at the same time as the cultivation of grasses, vines, almonds, and plants of the squash family. These efforts succeeded. In the authors' opinion, the results of these experiments can be used on similar soils in other regions of the world. The bibliography (437 titles) is exclusively in Russian.

Examples of methods of takyr development:

These experiments show that a significant loss of water occurs in furrows dug along the sides of takyrs. The most efficient furrows were those made in the bottom of takyrs following their contour lines, 10-33 m apart. In the strip of land along the upper side of the furrow, channels were made. To facilitate drainage into surrounding lands; a drainage network was created. This network was formed by ruts made by the wheels of LAZ 63 vehicles (Soviet landrovers) driving in the rain. Distance between these vehicles: 3-5 km; depth of the ruts: 2 cm.


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