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[27] 高洁,吴普特,谢朋轩,等.灌区蓝绿水资源与作物生产水足迹多时空分布量化分析[J].农业工程学报,
2021,37(5):105 - 112.
[28] CAOX,SHUR,RENJ,etal.Variationanddrivingmechanismanalysisofwaterfootprintefficiencyincropcul
tivationinChina[J].ScienceoftheTotalEnvironment,2020,725:138537.
[29] ZHANGT,TANQ,WANGS,etal.Assessmentandmanagementofcompositeriskinirrigatedagricultureunder
water - food - energynexusanduncertainty[J].AgriculturalWaterManagement,2021,262:107322.
Optimizationofplantingstructureinpumpingirrigationsystem basedon
waterfootprintandwater - energy - grainnexus
1,3
1
2
1
CUISimeng,WUMengyang,WANGXiaojun,CAOXinchun
(1.CollegeofAgriculturalScienceandEngineering,HohaiUniversity,Nanjing 210098,China;
2.StateKeyLaboratoryofHydrology - WaterResourcesandHydraulicEngineering,
NanjingHydraulicResearchInstitute,Nanjing 210029,China;
3.JiangsuProvinceEngineeringResearchCenterforAgriculturalSoil - WaterEfficientUtilization,
CarbonSequestrationandEmissionReduction,Nanjing 210098,China)
Abstract:Irrigationsystemisthekeycarrierofagriculturalproductionandwateruse,andthecoordinationofwa
ter - energy - grainnexushasanimportantimpactonregionalsustainabledevelopment.Comparedwithtraditional
studiesonefficientallocationofirrigationwater,waterfootprinttheoryclarifiesthetotalwaterconsumptionanduti
lizationtypesofagriculturalproductionwaterresources.Inresponsetotheproblemofwater - energyresourcessup
plyanddemandincompatibleallocationandtheecologicalimpactincomprehensiveconsiderationinpumpingirriga
tionsystem,amulti - objectiveoptimizationevaluationmodelofplantingstructureinpumpingirrigationdistrictwas
constructedbycombiningthewaterfootprinttheoryandwater - energy - grainnexuswithintegratingthemulti - dimen
sionalsystemsofsocial ,resources,ecology,andeconomy,takingintoaccountthefullphasesofwaterresource
allocation,agriculturalproductionwaterandgrainproductiontransfer.ThemodelwasappliedtoLianshuiIrrigation
Districttoadjusttheplantingstructureofgraincrops(rice,wheat,maize,andsoybeans),andthentheTopsis
methodwasadoptedtocompareandevaluatetherelativeclosenessbetweenthestatusquoandoptimalconfigura
tions.Theoptimizationresultsshowthatunderthebasicpremiseofensuringfoodsecurity,thesowingareaof
maizeshouldbeincreased ,andthatofsoybeansshouldbereduced.Comparedwiththestatusquo,theannualu
nilateralwatereconomicnetbenefitofgrainincreasedby4.0% aftertheoptimization ,andcropcarbonfootprint
showedadownwardtrendwhencropplantingbaselinewaschangedwithdecreasingby79.5kgin2018aftertheopti
mization.Therelativeclosenessoftheoptimizationschemewasgreaterthanthestatusquo,whichplaysareliable
supportingroleinpromotingefficientresourcesutilizationandagriculturalsustainabilityinpumpingirrigationsystem.
Keywords:water - energy - grainnexus;cropwaterfootprint;multi - objectiveoptimization;pumpingirrigation
system ;Topsisevaluationmethod
(责任编辑:于福亮)
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