金融专业大学排名doc.docx

金融专业大学排名doc.docx

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金融专业大学排名doc

摘要.....................................................................................................................................1

1引言.................................................................................................................................3

1.1国内外研究现状..........................................................................................................3

1.2研究目的与意义..........................................................................................................5

2材料与方法.....................................................................................................................6

2.1试验地概况..................................................................................................................6

2.2试验方法......................................................................................................................7

2.2.1布设与水分控制.......................................................................................................7

2.2.2光合作用光响应的测定...........................................................................................7

2.2.3光合保护酶活性的测定...........................................................................................8

2.2.4数据处理与分析.......................................................................................................9

3结果与分析.....................................................................................................................9

3.1不同土壤水分下沙棘光合作用光响应过程..............................................................9

3.1.1光合速率光响应过程...............................................................................................9

3.1.2蒸腾速率光响应过程.............................................................................................10

3.1.3水分利用效率光响应过程.....................................................................................11

3.1.4光能利用效率光响应过程.....................................................................................13

3.1.5沙棘胞间CO2浓度的测定....................................................................................13

3.1.6沙棘气孔限值光响应过程.....................................................................................14

3.2不同土壤水分下对沙棘光保护酶活性的影响........................................................15

3.2.1不同水分条件下丙二醛的含量变化....................................................................15

3.2.2不同水分条件下对超氧化酶活性的影响.............................................................16

3.2.3不同水分条件下对过氧化酶活性的影响...........................................................16

4结论...............................................................................................................................17

参考文献...........................................................................................................................18

致谢...................................................................................................................................21

Contents

Abstract...............................................................................................................................1

1Foreword..........................................................................................................................3

1.1Domesticandforeigncurrentsituation.........................................................................3

1.2Thepurposesandsignificance......................................................................................5

2.1Bacicconditionsofresearcharea.................................................................................6

2.2Experimentalmethods..................................................................................................6

2.2.1Experimentalarrangmentandwaterstressdisposal..................................................7

2.2.2Thedeterminationoflightresponse...........................................................................7

2.2.3Thedeterminationaboutphotosyntheticactivityofprotectiveenzyme....................7

2.2.4.Dataprocessingandanalysis...................................................................................8

3Resultsandanalysis.........................................................................................................9

3.1Underdifferentsoilmoistureseabuckthornlightresponseprocesscooperation.........9

3.1.1Thelightresponseprocessofphotosyntheticrate.....................................................9

3.1.2Thelightresponseprocessoftranspirationrate.......................................................10

3.1.3Wateruseefficiencylightresponseprocess.............................................................11

3.1.4Lightenergyutilizationefficiencylightresponseprocess.......................................13

3.1.5ThedeterminationaboutintercellularCO2concentrationofseabuckthorn.............13

3.1.6Thelightresponseprocessofse