低压管道输水小畦灌的优势与发展前景Ξ

20036JournalofIrrigationandDrainage223:1000646X(2003)03003704X1,2,3,1,1(1.,100101;2.,253000;3.,253000):,,,,,;:;;;:S275:A97%,,[1],,,,,,,90%[2],1%,,,,,,,,,,()12003000m3öhm2,,,,,,,,,11.1,,,,,,,,,,,,,,,100m30m,150204m3öhm2;30100m,2Lös5Lös,150225m3öhm273X:20030321:(1964),,,,.©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,[3],2cm1.2,,,,,,,,,,,,,,,,10%20%,28%[4],,,,19961998,,1040m,4060mm,75%80%,19971998,195mm,182.1mm[5],,,1,14065mm30mm75%80%80%85%3000öhm212000öhm220%30%,1%,,ö250300kWhöhm2,,,,34550833kWhöhm2,,,,,79,,,,,,10%28%,,,550mm,300mm,,[1],,,[6],,,,,,,,,(100mm),,,,70100mm,,,,,,,1.3,95%,,,198446.9%,,0.972.6108m,1.68108m,0.7[7]83©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,;,,,,,,,,,,,,WTO,,,,,,,,,,,,,,,,,,[8],2,,,675m3öhm2,;825990m3öhm2,150m3öhm2,0.001,40m,34m,615675m3öhm2,80%,[4],:2,611m,47m,600m3öhm2[9],3050m90%50m675m3öhm2,[10],,,,,,,,,,,,,,,,3,(),(),()[11],,3,,,,,,,,,--,,,,,,,,,,,,93©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,,,,,,,,,,,,,,,,,,,,:[1].21[J].,2000,(1):910.[2].[A]..[C].:,2001.[3].[J].,2002,18(1):5759.[4].[J].,2002,(3):2223.[5],,.[J].,2000,15():6972.[6].[J].,2000,(6):1112.[7]HubenerR.Futureprospectsofagriculturalirrigationtechnologies[J].ZeitschriftFurBewasserungs2wirttschaft,1999,34(2):193200.[8],,,.[J].,2002,21(1):5557.[9],,.[J].,2001,(3):1821.[10].[A]..[C].:,2001.[11],.[J].,2002,9(2):4850.AdvantagesandDevelopmentProspectofSmallBorderIrrigationwithLowPressurePipelinLIUEn2min1,LIUXiao2yun2,LIUChuan2shou3,LUOYi1,WUKai1(1.InstituteofGeographicSciencesandNaturalResourcesResearch,CAS,Beijing100101,China;2.DezhouWaterConservancyBureau,Dezhou253000,China;3.DezhouBureauofHydrologicandWaterResourcesReconnaissance,Dezhou253000,China)Abstract:TheimportanceofoptimizingsurfaceirrigationinChinawasdiscussedinthispaper.Accordingtore2searchresultsonsmallborderirrigationinYucheng,theadvantagesanddevelopmentprospectofsmallborderirrigationwereanalyzed,andthedirections,theexistingproblemsandthecountermeasuresfordevelopmentofsmallborderirrigationwereputforward.Therehasbeenlonghistoryandwideextentforapplicationofsmallborderirrigation,buttheoreticalresearch,productdevelopmentandtechniquepopularizationshouldbeen2hanced.Itshouldbepointedthatthedevelopmentofwater2savingagricultureshouldmainlydependedonopti2mizationofsurfaceirrigation,andthatthetheoreticalresearchandproductdevelopmentofwater2savingirriga2tionshouldbeinnovated,andthatsmallborderirrigationshouldbeaprecisionsystem,whichconsistsoflowpressurepipelinenetworkforwaterconveyance,mobileandsimplesystemforwaterdistribution,andmechani2calsystemforlandleveling.Keywords:water2savingirrigation;smallborderirrigation;sprinklerirrigation;lowpressurewatercon2veyancepipeline04©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.