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1、中國(guó)農(nóng)業(yè)科學(xué)院碩士學(xué)位論文蘋(píng)果樹(shù)冠微氣候與果實(shí)品質(zhì)關(guān)系研究姓名：孫志鴻申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：果樹(shù)學(xué)指導(dǎo)教師：楊朝選孫忠富20050601AbstractToerelationshipbetweenthedynamicdistributionofthemicroclimate(includingradiation，temperatureandrelativehumidity)intreecanopyandthetypesofbranch

2、esandleavesaswellasthefruitqualitywasstudiedbyusing12yearRedFujiappleorchardtrainedasStandardopencentershapeTheresultswereasfollows(1)TheSLImofbranchesper6667mzwas65，000andtheproportionofthelongbranches，middlebranchandsp

3、urwas12：14：74Theaverageannuallighttransmittancethroughfleecanopywasabout045～055Thesectionswheretherelativesolarradiationintensityweremorethan30％accountfor80％ofthetreevolumeThedistributionofthefruitswasrelativelysymmetric

4、alandthepercentageofhighqualityfruitwasmorethan80％(2)ThetemperaturedifferencewasobviouswithindifferentS￡asOnSandindifferentpositionsofthecanopyThegeneraltrendwasthatthetemperatureincreasedgraduallyfromthebottomtothetopan

5、dfromtheinnertotheonteFofthecanopyInMayandJenethemaximumtemperaturedifferencewasabout03～08Wbetweenthetopandthebottomofthecanopy，andbetweentheouterandinneroftheeanopyThetemperaturedifferencewasabout0，5～25℃duringthemiddlep

6、eriodoffruitgrowingandwas05～15“Cduringthefruitmaturingperiod(3)TherelativehumiditywithinthecanopyvariedobviouslyItwashigherinthebottomandinnerthaninthetopandouterinthecanopyThedifferenceofrelativehumiditywithindifferentp

7、artofthecanopywashigherintheperiodoffruitexpansionthanintheperiodofcanopyformationandfruitharvest(4)Theregressionequatiormweredevelopedbetweenthemicroelimatefactot5ofthetreecanopyandthequantityoftheleafandbranchandthefru

8、itqualitythroughmultivariatestatisticalanalysisThemathematicmodelwasbuilttopredicttherelativesolarradiationintensitydistribution，temperatureandtherelativehumidityinsidethecanopythroughthequantityanddistributionoftheleave

9、sandbranchesinthecanopyalloptimalschemecouldbemadebetweenthemieroelimateofcanopyandfruitqualityandfurthermore，acomprehensivecombinationwasmadeamongthedistributionandthequantityofthebranchesandleafareawiththetreecanopymic

10、roclimateandfruitqualitythroughthisstudy(5)ThequalityoffruithadstrongandpositiveenrrelationwiththerelativeradiationintensitywithinthecanopyThebestiangeofrelativeradiationintensityforshlglefruitweightiswithin3090％，inwhich

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