金融专业大学排名docWord文档下载推荐.docx
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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
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