简介:Theareaofwellirrigationricebecamemoreandmore,sothecrisisofgroundwaterappeared.Makingthemostofrainfallisanavailabilitymethodinwatersavingirrigation,increasingwatertemperatureandraisingyield.Justbasedonthis,throughapplyingthetheoryofseasonrandomtimeseries,accordingtothedataofaveragemonthlyrainfall(1981-1999),theauthorsbuilduptheforecastingmodelintheareaofwellirrigationriceintheSanjiangPlain.Throughcontrastingwithpracticalvalue,themodelhasgoodeffect.So,itcanbeusedinwaterirrigationmanagement.