污灌區(qū)菜地土壤質(zhì)量評(píng)價(jià)及其污染預(yù)測(cè)模型研究——保定市郊為例.pdf_第1頁(yè)
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1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文污灌區(qū)菜地土壤質(zhì)量評(píng)價(jià)及其污染預(yù)測(cè)模型研究——保定市郊為例姓名：王樹(shù)濤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：土壤學(xué)指導(dǎo)教師：李博文20050618StudyonPredictingEffectsoftheSoilPollutedwithHeavyMetalsonVegetablesandMethodofAssessingQualityoftheSoilinVegetablePlotIrrigatedwithSewage——AC

2、aseStudyonBaodingSuburbAuthor：WangShu—taoMajor：SoilScienceTutor：ProfessorLiBowenAbstractAimingatthedifficultproblemofevaluationresearchofsoilqualityintheareasirrigatedwithsewageandhavingvegetablefieldsintheareasirrigated

3、withsewageinBaodingCityasaresearchobject，thispapermakesaihnherexplorationtotheevaluationmethodoftheeffectivecombinationofsoilqualityfertilizerfactorandheavymetalfactorandstudiestheforecastingmodelofheavymetalindifferentv

4、egetablefields，onthebasisofevaluatingthesoilqualityandforecastingtheheavymetalpollution，andadoptingthemethodoffieldinvestigationorcombiningthemodemmathsstatisticswithspecialityknowledge，whilehavingsoilfertilizerfactorand

5、heavymetalpollutionfactorastheindex，whichisusedastheevaluationindexofcommonfanningsoilandpollutedfarmingsoil，whichformstheindexevaluationsystemofsoilqualityintheareasirrigatedwithsewage(1)Usingfieldinvestigationandmultip

6、leregressionanalysis，andinordertOforecastsoilPb，Cd，CuandZnpollution，19retummodelsof22kindsofvegetablefrom5mainclassesasthegreenleafclass，thefruit&melonclass，therootvegetableclass，theonion&garlicclassandcabbageclassarepre

7、liminarilyworkedOUttoforecastthepossiblepollutioncontentinallkindsofvegetables，whichareplantedonthesoilcontainingcertainamountofheavymetalMeanwhile，withtheresultofsoilqualityappraisal，ascientificforecastingstudyoftheposs

8、iblepollutionofeverykindofheavymetaltodifferentvarietiesofvegetablescallbemadetoprovideascientificfoundationforthedevelopmentofsoilvegetablegrowingintheareasirrigatedwithsewage(2)Usingthemaincompositionanalysis，itreveals

9、thecauseoftheeffectivecombinationbetweenthefertilityfactorandpollutionfactorinthesoilqualityevaluationinareasirrigatedwithsewage，andexplorethemaincomprehensiveindexofsoilqualityinareasirrigatedwithsewage，andalsomakeitcle

10、arthatthecontributionofthenutrientfertilityfactorisgreaterthanthesoilpollutionfactorinthesoilirrigatedwithsewageTheappraisalofthefertilitylevelofthesoilnutrientoccupiesmainstatus，whiletheappraisalofthesoilpollutiondegree

11、isinthesecondaryposition(3)Itisputforwardtousedynamicclusteranalysetoappraisalsoilqualitylevelbylevel，Usingdynamicclusteranalyses，firstthesoilirrigatedwithsewageisclassifiedAsthemainpartaccordingtothefertilitylevel，thent

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