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@hotmail.com-11992122247/193[1]200332003WorldWaterDevelopmentReport143020252/3[2]2140600[3]20301617507000800080009000[4,5]212001018301620020657(090cm)60803.1[5]JonesHG[6][7][8]RGB[9]3.211941KramerPJ1961Kramer[10][11,12]3.3GsCO2feed-forwardmannerfeedbackmanner1[13]earlywarningsystemSchulze[14]Negev111GsGs[15]3.4Pn[16]3.5ET99%CWSICropWaterStressIndexFAO[17][18]1GsPnET3.6[19][20]3.7NamkenLN[21](1969)cburneyT[22](1984)3.8Idso[23]1981CWSIIdsoTc-TaVPDLowerbaselineTc-TaTc-TaIdsoUpbaselineJackson[24]1982[25]1994WDIWaterDeficitIndex[26]1986JacksonCWSI[27](1997)[28]2002CWSICWSI3.9[29]19931995[30]4CWSI[31]1998Kurata,K.[32]1990Center,B.[33]1997Al-Faraj,A.[34]2000-CWSI-CWSICWSI[1][2][3][4][5][6]CohenS,CohenY.Fieldstudiesofleafconductanceresponsetoenvironmentalvariablesincitrus[J].JournalofAppliedEcology,1983,20:561-570.[7]JonesHG,LaksoAN,SyvertsenJP.Physiologicalcontrolofwaterstatusintemperateandsubtropicalfruittrees.HorticulturalReview,1985,7:301-344.[8],,.[J].,1999,17(4):58-65.[9],,.[J].,2002,29(4):343-347.[10]KramerPJ.AnEarlyDiscussionofCellWaterRelationinThermodynamicTerminology[J].NewsletterofAmerSocPlantPhysiol,1984,115.[11]GrimesDW,YamadaH,HughesSW.Climate-normalizedcottonleafwaterpotentialsforirrigationscheduling[J].AgriculturalWaterManagement,1987,12(3):293[12]GrimesDW,YamadaH.Relationofcottongrowthandyieldtominimumleafwaterpotential.CropSci.,1982,22(1):134[13],.[J].1993,11(4):61-64[14]SchlzeED,LangeOL,BuschbomU,etal.Stomatalresponsestochangesinhumidityinplantsgrowinginthedessert.Planta,1972,108:259-270.[15]LaksoAN.Seasonalchangesinstomatalresponsestoleafwaterpotentialinapple.J.Amer.Soc.Hort.Sci.,1979,104:58-60.[16].[J].,2000,15(3):92-96.[17].,,1979.[18]VauxJrHJ,Prultt,WO.Crop-WaterProductionFunctions[J].AdvanceinIrrigation,1987,2:61-97.[19],,..,1999,15(3):91-96.[20],,..,1996,27(4):45-48.[21]NamkenL.N.etal.Monitoringcottonplantstemradiusasanindicatorofcropwaterstress.Agro.J.1969,61(6):891-893.[22]McburneyT.etal.Therelationshipbetweenstemdiameterandwaterpotentialinstemsofyoungcabbageplant.J.Exp.Bot.1984,35(61):1787-1793[23]IdsoS.B,JacksonR.D,PinterPJJr,etal.Normalizingthestressdegreedayforenvironmentalvariability[J].AgriculturalMeteorology,1981,24:45-55.[24]JacksonR.D,IdsoS.B,ReginatoR.J.Canopytemperatureasacropwaterstressindicator[J].WaterResourceResearch,1981,17:1133-1138.[25]MoranMS,ClarkeTR,InoueY,etal.Estimatingcropwaterdeficitusingtherelationbetweensurfaceairtemperatureandspectralvegetationindex[J].RemoteSensingofEnvironment,1994,49:246-263.[26]ZhangRA.Newmodelforestimatingcropwaterstressbasedoninfraredradiationinformation[J].ScienceinChinaB,1986,7:776-784.[27],.[J].,1997,16(1):1-5.[28],,,.[J].,2002,18(6):13-17.[29],,,.[J]..2001,17(5):150-152.[30],,,,[J],1999,20(2):1-5.[31].[J]199814(3):197-201.[32]Kurata,K.,Eguchi,N.Machinelearningoffuzzyrulesforcropmanagementinprotectedcultivation[J].Trans.ASAE,1990,33(4):13601368.[33]Center,B.,Verma,B.P.Afuzzyphotosynthesismodelfortomato[J].Trans.ASAE,1997,40(3):815821.[34]Al-Faraj,A.,Meyer,G.E.,Schade,G.E.,Horst,G.L.Dynamicanalysisofmoisturestressintallfescueusingcanopytemperature,irradiationandvapordeficit[J].Trans.ASAE,2000.43(1):101109.PresentSituationandDevelopmentofTechnologyofAgriculturalWater-savingLiGuochen1,2,MaChenglin1,YuHaiye1,LiuDehui1,WangRui11.CollegeofBiologicalandAgriculturalEngineering,JilinUniversity,Changchun130025;2.CollegeofEngineering,ShenyangAgriculturalUniversity,Shenyang1101611.AbstractTechnologyofwater-savinghasbeenanimportantmethodofdecreasingcropproducingcostandimprovingbenefit.Thispaperpresentedthewaterresourcepressuringsituation,analyzedthreemainsectioninwater-saving,andparticularlydiscussedthemethodofdiagnosingcropwaterstress.Leafwaterpotential,stomatalconductionandleaftranspirationarethestandardofdiagnosingcropwaterstress,butcannotrealtimecontrollingirrigation.Furtheremore,thepaperdiscussedthatthetrendofthetechnologyfordetectingplantwaterstressandmeasurementofdecision-makingforirrigation.Keywords:water-saving;waterstress;presentsituation.1968CAD/CAM-ThisdocumentwascreatedwithWin2PDFavailableat