微润灌条件下微润管入渗特性试验研究

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1、AbstractMicroirrigationisanewtypeofhighefficientirrigationtechnology,itusesemiDe哪eablemembraneasirrigationwaterpipe，irrigationwaterslowlYreleaSed1mothecroprootzonesoilbytheburiedwayanduptakedbycrop·Duet0mlcr01mgatlonisonel(indofnewwatersavingirrigationtechnology，thecurrentdomestlcand±orel

2、gnresearchesonmicroembellishirrigationisrelativelyless·OnthebasisofsYstemlcconclusionandstudytheresearchachievementsindomesticandforelgnrelatedtomicroirrigation，thispaperhasconductedsomepreliminaryexperimentresearchaboutmicroembellishtube．ThemainresearchcontentisdividedintothefollowmgseVe

3、mlasDects：Toanalysiswaterpercolatingcapacitychangeofmicroembellishtubeunderdifferemwaterheadofunitlenl加throughtheindoortest，andanalYzethechangeotwaterpercolatingcapacitywithchangelengthofmicroembellishtube·’I’hroughtheindoortestanalysisthedevelopmentofthemoistsoilbodyandthesh印eofwettlngbo

4、dVintheconditionsofdifferentmicropipeburieddepthanddifierentsoil,锄danalysisthechangesofthesizeofthewettingfrontandsoilmoisturecontent1na儿directions．Basedonthele撇ingandfamiliarHYDRUS一2Dsoftware,usmgthesofh^，盯etonumericalsimulatethesoilwaterinfiltrationatconditionofmlcroembellishin'igation，

5、andcomparingthesimulatedvaluesandmeasuredValues·Wecangetthefollowingmainconclusionsthr。u曲a11alysis．，1、MicroembellishpipeunitlengthperunittimewaterpercolatingcapacityandcumulativewaterpercolatingcapacityhaveonelinearrelationshiPwithwaterhead,microembellishpipeunitlengthperunittimewaterperc

6、olatingcapacitYwill1nc∞asesWiththeincreaseofwaterhead．Underdifferentwaterhead，microembeltishtubepermeterwaterpercolatingcapacityhasinverselyproportionarelationshipwiththedistanceofwaterinlet，microembellishtubewaterpercolatingcapacitypermeterdecreaseswiththeincreaseofmicroembellishtube’sle

7、ngth·Unitlengthmlcroembellishtubec啪ulativeinfiltrationratedecreasedwiththeincreaseofburieddeptnatthesameirrigatetime．UnitlengthmicroembellishtubecumulatiVeinfiltratlonratewiththeincreaseoftimeisalinearequation．II西酊竺m；引‰khm诎蚵叫的盯=枷锄小e卿眦衙k椭㈨啦咿mn缸．。，似耻鲒h∞mm出劲。盯minfiltra