Page 220 - 《水资源与水工程学报》2023年第2期
P. 220
!34 ; ! 2 " > ? @ A > B C D E Vol.34No.2
2023 < 4 = JournalofWaterResources&WaterEngineering Apr.,2023
DOI:10.11705/j.issn.1672-643X.2023.02.28
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GHIJK:S513 LMNOP:A LQRK:1672643X(2023)02021609
Irrigationquotaofdripirrigatedspringmaizebasedonentropyweight-TOPSIS
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4
LIChi ,CHENGang,LIANGGuocheng,YANGJige,CAOWei ,ZHAOJinghua ,MAMingjie
(1.CollegeofHydraulicandCivilEngineering,XinjiangAgriculturalUniversity,Urumqi830052,China;2.Xinjiang
KeyLaboratoryofHydraulicEngineeringSafetyandWaterDisasterPrevention,Urumqi830052,China;3.Karamay
LüchengAgriculturalDevelopmentCo. ,Ltd.,Karamay834000,China;4.ConstructionBureauofUrumqi
EconomicandTechnologicalDevelopmentZone (ToutunheDistrict),Urumqi830026,China)
Abstract:Inordertoobtainanaccurateirrigationquotasuitablefordripirrigatedspringmaizeinthe
3
2
2
3
northernXinjiang,sixlevelsofirrigationquotasofW (225m /hm ),W (300m /hm ),W (375
2
1
3
2
3
2
3
2
2
3
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m /hm),W (450m /hm),W (525m /hm)andW (600m /hm)weresettostudytheeffectof
6
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irrigationquotasongrowthandyieldofspringmaize.Somegrowth ,yieldandwatersavingindiceswere
selectedasevaluationindicestoanalyzethelawofwaterconsumptionandsignificanceofdifferentindi
ces ,thentheentropyweight-TOPSIScomprehensiveevaluationmethodwasusedtooptimizetheirriga
tionquotasuitablefordripirrigatedspringmaizeinthenorthernXinjiang.Theresultsshowthatthekey
fertilityperiodfordripirrigatedspringmaizeisthetasselingpollenperiod ,andtheoptimalirrigationquo
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2
taforthisperiodis525m /hm;thegrowthrateofwaterconsumptionandintensityofwaterconsumption
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3
decreasessignificantlyaftertheirrigationquotareaches525m /hm.Accordingtothesignificanceanaly
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2
sisofeachindex ,theirrigationquotaof450-525m /hm ismoresuitableforthegrowthofspringmaize
inthenorthernXinjiang.Theresultsofthecomprehensiveentropyweighted-TOPSISevaluationshow
thatthehighestclosenessandthebestevaluationresultscanbeachievedwhentheirrigationquotais525
2
3
2
m /hm,atwhichtimethemaizeyieldisabout16,178.71kg/hm.Therefore,werecommend525
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2
m /hm astheoptimalirrigationquotafordripirrigatedspringmaizeinthenorthernXinjiang.
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