The Aral Sea I
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United Nations Environment Programme The Aral Sea I. M-41 71 76 AVERAGE AVERAGE AVERAGE AVERAGE LEVEL AREA VOLUME SALINITY (grams/liter) YEAR , (meters) (sg.-km) (cu.-km) 00? 1960 3141 66.900 3090 10 1971 51.05 60,200 925 11 3976 4828 55.700 763 14 1991 33.800 290 large sea 37.31 31.000 270 —30 small sea 38.41 2.800 20 30 2000 21,421 140 large sea 31.90 19,701 131 65-70 small seat 3800 1.720 9 —36 tfl.atu,I . wkkk nowwwof1- foam di. 1'v D.,pa. va. Chronology of Aral Sea Changes Diagnostic Study for the Development of an Action Plan for the Conservation of the Aral Sea L INOSTIC STUDY FOR THE DEVELOPMENT OF AN ACTION PLAN FOR THE CONSERVATION OP THE ARAL SEA TABLE OF CONTENTS CRAPTER PAGE UNEP EXPERT WORKING GROUP FOR THE PROJECT, "DIAGNOSTIC STUDY FOR DEVELOPMENT OF AN ACTION PLAN FOR THE CONSERVATION OF THE ARAL SEA BASIN" ..... v INDIVIDUALS PROVIDING MATERIALS USED IN PREPARATION OF DIAGNOSTIC REPORT .......................vii LISTOF FIGURES ........................................ viii LISTOF TABLES ......................................... ix NOTE.......................................... ....... Xi INTRODUCTION ............................................1. THE NATURAL AND PHYSICAL HISTORY OF THE ARAL SEA DB.AINAGE BASIN ..........................................3 The Natural Environmert of the Aral Sea DrainageBasin .......................................3 Rydrogeology....................................... 6 Physical Features of the Aral Sea . ...... 7 Fluctuations in the Water Level of the Aral Sea ......7 History of the Economics of the Aral Region and its Effects on the Natural Environment ...........9 HUMAN RESOURCES, NATURAL RESOURCES AND ECONOMIC POTENTIALOF THE ARAL REGION ...........................13 Introduction.........................................13 Population and Labour Resources ......................13 NaturalResources ................................. 18 Water Resources . ................... 18 Surface Waters . * ..... .............. 18 Arnu Darya Basin . ............. 20 Syr Darya Basin .............. 2]. Natural Variations in River Runoff ..... 25 Ground Waters ......................... 26 Total Water Resources ................... 29 LandResources ..................................31 Mineral Resources and Raw Materials ... ..... 37 Fuel and Energy Reserves ........................ 37 Mineral Resources ...... 38 Hydropower Resources ........... 38 Resource Base for Ferrous Metallurgy ...... 38 Resource Base for Nonferrous Metallurgy .........38 RecreationalResources .............................. 40 - :ii - TABLE OF CONTENTS (Continued) CHAPTER PAGE THE NATURAL ENVIRONMENT OF THE ARAL SEA DRAINAGE BASIN MW PRINCIPAL CHANGES IN THE TERRESTRIAL ECOLOGY ....... 43 Human-Induced Climatic Changes .......... 43 Surface Runoff Water Losses Related to Human-Induced Climatic Changes ...................... 46 Changes in the Terrestrial Biota of the Ara]. Sea Region ............ ...................... 48 * Vegetation . * ...........................48 Animal Populations . ......................... *... 50 CHANGES IN THE WATER AND SALT BALANCE OF THE ARAL SEA .. 53 Water Balance ............................ - ...... 53 Salt Balance ........................ 53 Sources of Potential Errors in Calculating Water and Salt Balances ..... 55 Changes in the Salt Balance During the Last 30 Years . .............................. 57 Changes in the Salt Reserves of the Aral Sea ........60 Wind-Induced Movement of Salt From the Exposed Aral Sea Bottom ........ 60 NATURAL ENVIRONMENT OF THE ARAL SEA AND CHANGES IN ITS AQUATIC ECOLOGY ...................................62 Aquatic Ecology Prior to 1960 ........... 62 Changes in Aquatic Ecology Since 1960 ...... 63 Physical Factors Causing Changes in Aquatic Communities .......... 63 Introduction of Non-native Species ...............64 Effects of Increasing Salinity ............... 66 Summary of Impacts on Ecological Structure of Aral Sea . ............................. • . S•••• 67 POLLUTION OF THE ENVIRONMENT or THE ARAL SEA DRAINAGEBASIN .........................................69 Industrial Pollution ........................... 69 AgricultQral Pollution ........................... 70 Atmospheric Pollution ..............................72 soil Contamination ...................................72 WaterPollution ....................................75 - iii - TABLE OF CONTENTS (Continued) CHAPTER PAGE VIII. STATE OF HUMAN HEALTH IN ARAL SEA DRAINAGE BASIN. - . ........ 76 Human Health in the Aral Sea Drainage Basin ......... 76 Possible Environmental Factors Affecting Han Health ....................... ................ 80 Ix. BASIC CAUSES OF THE ARAL SEA CRISIS ....................87 Introduction........................................ 87 Regional Economic Development Strategy and Distribution of Production Forces .. ......... 87 Introduction of Cotton as the Major Regional Crop ..................................... 91 Development of Water-Consuming Rice Cultivation ..... 91 Irrigation of Unprepared Agricultural Lands ......... 93 Usage of Low-Productivity Lands and Related Difficulties in Land Reclamation .................... 94 Inappropriate Usage of Agricultural DrainageWaters ..................................... 97 Lack of Economic Incentives for Production, Imperfect Economic Mechanisms, and Management Shortcomings........................................ 98 Inadequate Monitoring of the Environment, Population and Economy .............................. 98 Inadequate Ecological Education ..................... 99 Inadequate Research Efforts ......................... 99 X. SUMMARY AND CONCLUSIONS ................................ 100 Degradation of the Natural and Social Environment in Aral Sea Drainage Basin ............. 100 Economic Losses Associated with the Demise of the Aral Sea .......................................104 APPENDICES. - . .................... ......... 105 Listing of Central Asia and Kazakhstan Activities Focusing on the Aral Sea and its Drainage Basin ..........................105 Terms of Reference for the Working Group Preparing the Action Plan for the Aral Sea and its Drainage Basin .......... ........ .... 109 -iv - UNEP EXPERT WORKING GROUP FOR THE PROJECT, "DIAGNOSTIC STUDY FOR THE DEVELOPMENT OF AN ACTION PLAN FOR THE CONSERVATION OP THE ARAL SEA" Richard ABBOU President, Association Interñationale de Medecine & Biologie de l'Environment 135 Rue de la Pompe 75116 Paris FRANCE Telex 614584 F ECOMEB FAX 45534175 ANDO International Lake Environment Committee 3-4-22 Kyomachi Otsu, Shiga 520 JAPAN Telex 5464850 ILEC J FAX (81)-775-23-1581 Jaroslav DALEK Environmental Engineering Consultancy ENEX Mutcje Kopeckeho 8, 169 00 Prague 6 CZECHOSLOVAKIA Tel/FAX (422) 352 202 Frank P. CONTE Oregon University Cordley Hall 3029 Corvallis, Oregon 97333-2914 U.S.A. Telex 510 596 0682 OSU COIlS FAX (503) 737-0501 Habib N. EL-HABR Programme Officer Water and Lithosphere Unit United Nations Environment Programme Nairobi KENYA Telex 22068, 22173 UNEP XE FAX (254-2) 226886/226890 Michael GLMJTZ National Center for Atmospheric Research P.O. Box 3000 Boulder, Colorado 80307-3000 U.S.A. Telex 989764 NCAR BRD, USA FAX (303) 497-1137 Dietmar KEYSER Universitat Hamburg Zoologisches Institut und Museum Martin-Luther-King Platz 3 D-200•0 Hamburg 13 DEUTSCHLAND Telex 214732 UNIHH D, FAX +49 40/4123 3937 J. KINDLER Director, Institute of Environ. Engineering Warsaw University of Technology Nowowiejska 20 00-653 Warsaw, POLAND FAX (48-22) 21-89-93 Telex 813307 A PW FL Poland -Il - UNEP EXPERT WORKING GROUP FOR THE PROJECT, "DIAGNOSTIC STUDY FOR TUE DEVELOPMENT OF AN ACTION PLAN FOR THE CONSERVATION OF THE ARAL SEA" (Continued) Monique MAINGUET Laboratoire de Geographie Physique Zonale 57, Rue Pierre Taittinger 51100 Reins Universite FRANCE Telex 250303 F PUBP BE, Poste 685 Philip P. MICKLIN Western Michigan University Kalamazoo, Michigan 49008 U.S.A. FAX (616) 387-0958 R. SLOOFF Division of Environmental Health World Health Organization (WHO) Geneva, SWITZERLAND Telex 415416 OHS FAX 7910746 William D. WILLIAMS The University of Adelaide GPO Box 498 Adelaide, South Australia 5001 AUSTRALIA FAX (61-8) 223 5817 Gilbert P. WHITE Distinguished Professor Emeritus of Geography University of Colorado Campus Box 482 Boulder, Colorado 80309 U.S.A. Telex 910 940 3441 LASP UNIV COLO -vi - INDIVIDUALS PROVIDING MATERIALS USED IN PREPARATION OF DIAGNOSTIC REPORT (IN ADDITION TO UNEP EXPERT WORKING GROUP.) U.B. Abdthekov Ch.A. Abdirov E. Adinbaev N.V. Aladin O.A. Ambartsumov N.A. Amergaliev D.V. Andrianov A.G. Babaev O.H. Baiserkeev A.M. Baramidze A. Datyrov A.B. Bakbiev V.P. Bochkarev S.M. Chapiro V.M. Delitsin L.M. Elpiner G.V. Geldyeva N.F. Glazovsky I.P. Gribov A.K. Imangaziev A.I. Imshenetsky K.S. Kaboolov E. Sb. Kachalova S.K. Kajenbaev S.K. Kamalov R.S. Kasenova A.S. Kes V.T. Rhachikyants A.K. Kiyatkin L.G. Konstantinova K.K. Koormanaliev L. Ya. Koorochkina L.A. Kooznetsov N.T. Kooznetsov G.V. Kopanev A.N. Krenke V.V. Ladygina G.B. Malkoolbekova I.M. Malkovskiy L.K. Melikhova I.K. Mookilanov N.M. Novikova I.M. Omarova V.S. Panfilov V.I. Poryadin D.P. Posdnysheva R.M. Razakov R.R. Reimov D.M. Ryskoolov B.S. Samoilenko S.I. Sagitov A.E. Semeonova G.A. Tikina G.A. Tinina A.A. Tokarenko T.A. Umarova -vii - LIST OF FIGURES Figure Page 1 Political sub-divisions of Aral Sea drainage basi.n . .. .. .. .. ... ...... 4 2 Surface water resources of Aral Sea drainage basin ........ .. .. .. .. .. 19 3 Runoff distribution of Au Darya and Syr Darya rivers, 1910-1990 .. 22 4 Major ground water deposits