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中国东北地区低温冷害研究进展与展望(英文).docx

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中国东北地区低温冷害研究进展与展望(英文) ResearchprogressandprospectoflowtemperaturedamageinNortheastChina NortheastChinaisoneofthecoldestareasinChina,withlowtemperaturesandlongwinters.Theextremecoldweatherinwintercancausesignificantdamagetoagriculturalproduction,transportation,construction,andotheraspects.Inrecentyears,withtheincreasingoccurrenceoflow-temperaturedamage,manyresearchershavecarriedoutin-depthresearchonlow-temperaturedamageinNortheastChina.Theresearchfocusesonthemechanismoflow-temperaturedamage,themonitoringandforecastingoflow-temperatureweather,aswellasthescientificandreasonablepreventionandcontrolmeasures.Thispaperwillintroducetheprogressandprospectoflow-temperaturedamageresearchinNortheastChinafromthreeaspects:themechanismoflow-temperaturedamage,themonitoringandforecastingoflow-temperatureweather,andthepreventionandcontrolmeasuresoflow-temperaturedamage. 1.Themechanismoflow-temperaturedamage Thelow-temperaturedamagemechanismmainlyinvolvesthedamageofcrops,trees,andinfrastructureinNortheastChina.Theformationoflow-temperaturedamageisusuallyrelatedtotheintensityofthecoldwave,thedurationofthecoldwave,andthepreviousweatherconditions.Inrecentyears,manystudieshaveshownthatthemainfactorsaffectingthedamagecausedbylowtemperaturesarethestageofcropgrowth,thedurationoflowtemperatures,andthefreezingpointofplanttissues. Firstly,thestageofcropgrowth.Differentcropshavedifferentsensitivitytolowtemperaturesatdifferentgrowthstages.Forexample,wheatismoresensitivetolowtemperaturesduringthejointingandbootingstages,whilecornismoresensitivetolowtemperaturesduringthejointingandtasselingstages.Therefore,itisnecessarytounderstandthegrowthstagesofcropsandgraspthesensitivityofdifferentcropstolowtemperaturestodevelopreasonablemeasurestoprotectthecrops. Secondly,thedurationoflowtemperatures.Thelongerthedurationoflowtemperatures,themoreseriousthedamagecausedbylow-temperaturestress.Short-termlowtemperatureshavelittleimpactoncrops,butifthelow-temperatureweatherlastsforseveraldaysorevenlonger,itwillcause