興安落葉松林土壤微生物種群結(jié)構(gòu)與土壤酶活性初步研究.pdf

1、分類號(hào)S718學(xué)校代碼10129UDC630學(xué)號(hào)08203014興安落葉松林土壤微生物種群結(jié)構(gòu)與土壤酶活性初步研究PreliminaryStudyontheSpeciesConstitutionofSoilMicroganismActivitiesofSoilEnzymeinLarixgmeliniiFest申請(qǐng)人：李曉彤學(xué)科門類：農(nóng)學(xué)學(xué)科專業(yè)：森林培育研究方向：林木菌根生物技術(shù)指導(dǎo)教師：閆偉教授論文提交日期：二〇一一年五月Prelim

2、inaryStudyontheSpeciesConstitutionofSoilMicroganismActivitiesofSoilEnzymeinLarixgmeliniiFestAbstractInthisstudy，thepopulationstructurenumbersofsoilmicroganismssoilenzymesindifferentfesttypeswerestudiedinHerbageL.gmelinii

3、virginfestBetulaL.gmeliniivirginfestoftheprimaryfestclearcuttingL.gmeliniifestsuccessivecuttingL.gmeliniifestofthedisturbedfestinthenationalfestryecosystemsstationofInnerMongoliaGreatXinganMountainsbyivemedia.Theresultss

4、howedthatthequantityoftotalmicroganismswereJulyMaySeptemberthequantityofsoilmicroganismsweregraduallowerwiththeincreasinginverticaldepthfollowders:010cmlayer1020cmlayer2030cmlayer.Bacteriaisolatedfromplotsbelongedto18gen

5、eraBrevibacterium，BacillusCynebacteriumMicrococcusweremaingeneraactinomyceteswerecomposedof8generaStreptomycesNocardiawerethemaingenera:fungiwerecomposedof18generaPenicilliumCephalospiumwerethedominantgenerafromtheprimar

6、yfestdisturbedfest.SeasonalvariationofsoilenzymesintheprimaryfestareJulyMaySeptember.buttheneutralphosphataseisMayJulySeptemberactivitiesofsoilenzymesaregraduallowerwiththeincreasinginverticaldepthfollowders:010cmlayer10

7、20cmlayer2030cmlayer.Thedisturbedfestissametotheprimaryfest.Crelationanalysisofsoilenzymessoilmicroganismsshowthatintheprimaryfesttheinvertasehascrelationwithactinomycetestotalmicroganism(P0.05)theproteinasehascrelationw

8、ithbacteriafungitotalmicroganism(P0.05)theacidphosphatasehascrelationwithfungi(P0.05)theneutralphosphatasehascrelationwithfungiactinomycetes(P0.05)thealkalinityphosphatasehascrelationwithbacteriafungiactinomycetestotalmi

9、croganism(P0.05).Inthedisturbedfesttheinvertasehasverysignificantpositivecrelationwithactinomycetes(P0.05)theneutralphosphatasehascrelationwithbacteriafungiactinomycetestotalmicroganism(P0.05)thealkalinityphosphatasehasv

10、erysignificantpositivecrelationwithbacteriafungiactinomycetestotalmicroganism(P0.01).Keywds：Larixgmeliniifest；Soilmicroganismquantity；Constitutionofsoilmicroganism；SoilenzymesDirectedby:Prof.YANWei(Ph.D)ApplicantfMasterd