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1、2011年7月农业机械学报第42卷第7期*温室小型西瓜调亏灌溉综合效益评价模型1221郑摇健摇蔡焕杰摇王摇健摇王摇燕(1.兰州理工大学能源与动力工程学院,兰州730050;2.西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100)摇摇揖摘要铱摇应用多层次多目标模糊理论与方法,建立调亏灌溉综合效益多层次多目标模糊评价模型;利用信息熵理论求得各层评价指标客观熵权,结合专家法的主观权重获得模型各层评价指标综合权重,并运用该模型对2007年秋季温室小型西瓜不同亏水处理的综合效益进行评价,结果表明,在
2、西瓜果实膨大期进行水分亏缺处理可以一定程度上提高果实的品质,但重度和中度的水分亏缺会降低果实产量,在果实成熟期采用一定程度的水分亏缺对果实品质和产量影响不大,在苗期、开花坐果期、果实膨大期和果实成熟期分别采用0郾75E、0郾75E、1郾25E和ppp1郾00E的灌溉标准可以获得较为理想的调亏灌溉综合效益。p关键词:小型西瓜摇调亏灌溉摇综合效益摇评价模型摇信息熵中图分类号:S651;S274郾3文献标识码:A文章编号:1000鄄1298(2011)07鄄0124鄄06FuzzyEvaluationtoInteg
3、rationBenefitofRegulatedDeficitIrrigationofMini鄄watermelonBasedonInformationEntropy1221ZhengJian摇CaiHuanjie摇WangJian摇WangYan(1.CollegeofEnergyandPowerEngineering,LanzhouUniversityofTechnology,Lanzhou730050,China摇2.KeyLaboratoryofAgriculturalSoilandWaterEngi
4、neeringinAridArea,MinistryofEducation,NorthwestA&FUniversity,Yangling,Shaanxi712100,China)AbstractThemulti鄄hierarchyandmulti鄄objectivefuzzytheorywasappliedtoestablishamulti鄄hierarchyandmulti鄄objectivefuzzyevaluationmodelofregulateddeficitirrigationcomprehen
5、sivebenefits.Usingtheinformationentropytheory,theimpersonalityweightsofallhierarchyevaluationindexeswereobtained,andthesubjectiveweightsgivenbyexpertstoattainthecomprehensiveweightsforthemethodofmulti鄄hierarchyevaluationindexeswerecombined,thereliabilityoft
6、hemodelevaluationresultswasimproved.Atthesametime,themodelwasusedtoevaluateandorderthecomprehensivebenefitsofregulatedeficitirrigationintegrationbenefitsofmini鄄watermelonwithdifferentwaterdeficittreatmentsinautumnof2007.Theresultsindicatethatthewaterdeficit
7、canimprovefruitquality,buttheseriouswaterdeficitandmoderatewaterdeficitwoulddecreaseyieldinfruitspreadinggrowthstage.Thewaterdeficithaslittleinfluenceonyieldandqualityoffruitinfruitmaturingstage.Duringtheseedingstage,blossomingandbearingfruitsstage,fruitspr
8、eadinggrowthstageandfruitmaturingstage,theirrigationstandardof0郾75E,0郾75E,1郾25Eand1郾00Ewasadoptedrespectively,andcouldgettheperfectcomprehensiveppppbenefitsofregulatedeficitirrigationintegrationbenefit
