Assessment of Irrigation Schemes with Comparative Indicators in the Southeastern Anatolia Project
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TurkJAgricFor 27(2003)293-303 ©TÜB‹TAK AssessmentofIrrigationSchemeswithComparativeIndicatorsin theSoutheasternAnatoliaProject HasanDE⁄‹RMENC‹* KahramanmaraflSütçüImamUniversity,FacultyofAgriculture,Dept.ofAgriculturalEngineering, 46100,Kahramanmarafl-TURKEY HakanBÜYÜKCANGAZ,HayrettinKUfiCU Uluda¤University,FacultyofAgriculture,DepartmentofAgriculturalEngineering,16059,Bursa-TURKEY Received:26.05.2003 Abstract: Inthisstudy,6comparativeindicatorsfortheassessmentofirrigationsystemperformancewereappliedto12irrigation schemes,whichwerecomponentsoftheSoutheasternAnatolianProject,fortheperiod1997-2001.Theoutputperunitcropped area,outputperunitcommand,outputperunitirrigationsupply,outputperunitwaterconsumed,relativewatersupplyand irrigationratiowerecalculatedas1223-9436$ha -1,308-5771$ha -1,0.12-2.16$m -3,0.45-2.92$m -3,1.00-5.90,and7- 100%,respectively.ANOVAtestresultsindicatedthatamongtheschemesthedifferencesintheoutputperunitcroppedarea,output perunitirrigationsupply,outputperunitwaterconsumedandrelativewatersupplywerenotstatisticallysignificantbuttha tthe differencesinoutputperunitcommandandirrigationratiowerestatisticallysignificant.Forefficientandrationalirrigati on management,aninformationsystemformonitoringandevaluationwhichencompassesallstakeholders,shouldbesetupand irrigationschedulingshouldbedesigned. KeyWords: Irrigationscheme,comparativeindicators,standardizedgrossvalueofproduction,relativewatersupply,irrigationratio Güneydo¤uAnadoluProjesindeKarfl›laflt›rmaGöstergeleriileSulamafiebekelerinin De¤erlendirilmesi Özet: Buçal›flmada;sulamaflebekelerininsistembaflar›lar›n›nde¤erlendirilmesindealt›karfl›laflt›rmagöstergesi,1997-2001y›llar› sulamasonuçlar›nagöre,Güneydo¤uAnadoluProjesi(GAP)içindeyeralan12sulamaflebekesineuygulanm›flvesulamasistem performans›de¤erlendirilmifltir.Çal›flmasonucunda,fiilensulananalaneflde¤erbrütüretimde¤eri1223-9436$ha -1,projealan› eflde¤erbrütüretimde¤eri308-5771$ha -1,sapt›r›lansuyakarfl›l›keflde¤erbrütüretimde¤eri0.12-2.16$m -3,bitkisu gereksiniminekarfl›l›keflde¤erbrütüretimde¤eri0.45-2.92$m -3,suteminoran›1.00-5.90vesulamaoran›%7-100olarak bulunmufltur.Yap›lanvaryansanalizlerisonucunda,fiilensulananalaneflde¤erbrütüretimde¤eri,sapt›r›lansuyakarfl›l›kefld e¤er brütüretimde¤eri,bitkisugereksiniminekarfl›l›keflde¤erbrütüretimde¤eri,suteminoran›bak›m›ndanprojeleraras›nda istatistikselaç›danfarkönemsiz,projealan›eflde¤erbrütüretimde¤erivesulamaoran›bak›m›ndanisefarkönemlibulunmufltu r. Etkinveverimlibirsulamayönetimiiçin,tümilgigruplar›n›içinealanbirizlemevede¤erlendirmebilgisistemininoluflturu lmas›ve sulamaplanlamas›n›nyap›lmas›gerekmektedir. AnahtarSözcükler: Sulamaflebekesi,karfl›laflt›rmagöstergeleri,eflde¤erbrütüretimde¤eri,suteminoran›,sulamaoran› Introduction performanceofmanyirrigationsystemsissignificantly Waterisavaluableresourceforagricultural belowtheirpotentialduetoanumberofshortcomings, production.Scarcityandmisuseofwaterposeaserious includingpoordesign,construction,operationand andgrowingthreattolifeandsustainabledevelopment.As maintenance.Morethan2/3ofthetotalareaunder wateristhelimitingfactorinmostoftheworld,increasing irrigationinTurkeyhasbeendevelopedbythepublic yieldsandsustainingfoodproductiondependmainlyon sector.However,theanticipateddevelopmentinirrigation irrigation.Therefore,protectionanddevelopmentof planning,operationandmaintenancehasnotbeen waterresourcesarecrucialforirrigationfacilities.The achievedtothesameextentasindevelopedcountries. *Correspondenceto:[email protected] 293 AssessmentofIrrigationSchemeswithComparativeIndicatorsintheSoutheasternAnatoliaProject Consideringthetotalbudgetinvestmentforthelast4 systemoperation,b)definetheexistingconditionsand years,agriculturalactivitiesshareofinvestment theimpactsofinterventionsonthesystem,andc)make decreasedfrom11.48%in1997to6.72%in2000 across-systemcomparison.Forthispurpose,the (fiengün,2002).Accordingtothesedata,theagricultural performancesof12transferredschemes;Derik-Dumluca, infrastructurehasnotbeenestablishedassufficientlyas Nusaybin,fi.Urfa-Harran,Akçakale,Ceylanpınar, expectedandexistingfacilitieshavenotbeenoperated HacıhıdırandHanca¤ızintheEuphratesBasinandthe appropriatelyduetothelackofallowablefunds. Garzan-Kozluk,Gözegöl,Devegeçidi,Çınar-Göksuand Intheframeworkoftheacceleratedtransferprogram BatmanirrigationschemesintheTigrisBasinwere startedin1993,theresponsibilityforthemanagement, assessedusingtheappropriateindicatorsdevelopedby operationandmaintenanceofirrigationsystemshas theIWMI. mainlybeentransferredtousers.Participatoryirrigation managementhasbeenestablishedfor3mainreasons: MaterialsandMethod userparticipation,self-controloftheirrigation managementanddecreasingoperationandmaintenance Inthisstudy,12transferredirrigationschemeswere costs.Thenumberandcorrespondingpercentage takenasmaterial.Datafortheirrigationschemeswere distributionofthetransferredarea(inparentheses)from compiledfromtheirrigationprojectevaluationreports theStateHydraulicWorks(DS‹)toWaterUser (Table1)(DS‹,1997-2001a).Thedataregardingcrop Associations(WUAs),WaterUserGroups(WUGs), patterns,unityieldsandpricesfor1997-2001were municipalities,cooperativesandothersare:336 obtainedfromtheproductcountresults.Table2shows (1,518,118ha),215(33,643ha),136(56,619ha),44 theevaluateddatafor2001asanexample(DS‹,1997- (54,318ha)and4(1000ha),respectively,withatotal 2001b). areaof1,663,698ha(Tekinel,2001). Asetofcomparativeperformanceindicatorsrelated Asufficientdatabaseandcomparativeindicatorsfor toeconomic,agricultural,andwateruseefficiency, theassessmentofirrigationsystemperformanceare developedbytheIWMI,wereusedfortheassessmentof needed.Therefore,manyresearchershaveofferedand irrigationsystemperformance(Moldenetal.,1998).The appliedagreatmanycomparativeindicatorsforsuchan first4basiccomparativeindicatorsrelateagricultural assessment. productiontounitlandandwater.Theseindicatorsallow acomparisonoftheperformanceoffundamentally Moldenetal.(1998)testedcomparativeperformance differentsystemsbystandardizingthegrossvalueof indicatorsusingthewaterinput-yieldrelationshipin18 agriculturalproduction.Inareaswherewaterisscarce, irrigationschemesin11differentcountries.TheCoello thestandardizedgrossvalueofproduction(SGVP)per andSaldanairrigationschemesinColombia(Vermillion unitofwaterconsumedisespeciallysignificant,whereas andGarces-Restrepo,1996),AltoRioLermaWUA inareasinwhichthelandisthelimitedsource,outputper (KloezenandGarces-Restrepo,1998),Bergama-Kestel unitofcommandorcroppedareaaremoreimportant. DamIrrigation(Geçgeletal.,1998),Alaflehirirrigation Theseexternalindicatorsareoutputperunitcropped scheme(Avcıetal.,1998),KonyaWUA(Çakmak,2001) area,outputperunitcommand,outputunitirrigation and158DS‹-transferredirrigationschemes(De¤irmenci, supplyandoutputperunitwaterconsumed.Inaddition 2001a)wereassessedbycomparativeindicators totheaforementionedindicators,2otherindicators, developedbytheInternationalWaterManagement relativewatersupplyandtheirrigationratio,were Institute(IWMI). consideredfortheassessmentstudy. Theobjectivesofthisstudywere:a)tomake AccordingtoMoldenetal.(1998)andPerry(1996), recommendationsfortheimprovementofirrigation theseindicatorscanbecalculatedas: $ SGVP Outputpercroppedarea = (1) ha Irrigatedcroppedarea Outputperunitcommand $ = SGVP (2) ha Commandarea 294 H.DE⁄‹RMENC‹,H.BÜYÜKCANGAZ,H.KUfiCU Table1.AssessedirrigationschemesanddatausedintheGAPregion(continued). NameofScheme NameofProject WaterResource Years Command Irrigated DivertedIrrigation VolumeofWater Area CroppedArea Supply ConsumedbyET (ha) (ha) (hm3)(m3/ha) GAPTigrisBasinIrrigationSchemes 1997 1998 3700 2590 20,720 6582 Garzan-Kozluk Garzan Garzan 1999 3700 1702 23,500 6581 2000 3700 1147 13,850 6482 2001 3700 1998 13,100 6276 1997 550 539 6001 5701 1998 1003 451 14,057 5516 Gözegöl Dicle-Kralk›z› Ça¤›tran 1999 1003 201 2177 4501 2000 1003 181 641 2629 2001 1003 221 4075 6146 1997 6900 6003 86,999 5741 1998 6900 6417 96,493 5590 Devegeçidi Devegeçidi DevegeçidiCreek 1999 6900 5658 87,132 5667 2000 6900 6072 66,724 5144 2001 6900 6348 82,930 4420 1997 3582 2651 33,049 5254 1998 3582 2901 34,714 4978 Ç›nar-Göksu Göksu-Ç›nar GöksuCreek 1999 3582 2579 20,600 4298 2000 3582 2472 16,933 3020 2001 3582 1361 17,729 5700 1997 7590 5844 62,032 4239 1998 7590 5617 43,780 5753 Batman Batman BatmanCreek 1999 7590 5313 78,230 5230 2000 7590 4934 67,100 5129 2001 7590 4934 70,000 5784 Outputperunitirrigationsupply $ = SGVP (3) m3 Divertedirrigationsupply Outputperunitwaterconsumed $ = SGVP (4) m3 VolumeofwaterconsumedbyET Totalwatersupply Relativewatersupply= (5) Crop-waterdemand(ET) Irrigatedcroppedarea IrrigationRatio= (6) Commandarea 295 AssessmentofIrrigationSchemeswithComparativeIndicatorsintheSoutheasternAnatoliaProject Table2.DataforcropsintheGAPregion. AverageYield UnitPrice NameofScheme NameofCrop Percentage (kg/ha) (TL/kg) (%) (m3/ha) (TL/m3) GAPEuphratesBasinIrrigationSchemes Grain 80.2 400 210,000 Derik-Dumluca Cotton 19.8 299 443,666 Grain 26.4 766 115,700 Cotton 72.4 292 513,669 Nusaybin Vegetables 0.8 2709 347,571 Poplar 0.4 3 45,000,000 Grain 9.7 380 200,000 Melon-Watermelon 0.1 3930 200,000 Cotton 88.7 375 700,000 Maize 0.2 780 180,000 fi.Urfa-Harran Grapevine 0.1 1600 260,000 Fruits 0.1 1500 225,000 Vegetables 0.7 2470 400,000 FodderCrops 0.2 650 110,000 II.ProductCotton 0.2 360 725,000 II.ProductMaize 0.3 750 190,000 Grain 29.6 390 190,000 Cotton 70.1 370 700,000 AkçakaleP Maize 0.1 750 175,000 Vegetables 0.2 2900 390,000 Grain 42.9 380 190,000 Melon-Watermelon 14.3 3500 210,000 Ceylanp›narP Cotton 42.9 300 700,000 II.ProductVegetables 7.1 2400 375,000 Hac›h›d›r Cotton 100 370 700,000 Grain 95.2 400 130,000