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时间:2020-03-07
《东北黑土不同土壤利用方式下微生物群落的变化特征.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
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2、—.:--.V;,1中;;,—之叫..‘..;;;雙績女学位论太;豁\證妒;;;沁苗賴顏隣‘、.慕竭.處藏賓蘇篇巧梦葬.戸-如.韻i和感.;.巧霉於霉庸北黑止不同±壤利用方式下微生物讀馨壌麵群落的变化特征—?!讀繁;.心?.:..'::,;:i義.Vi;,.齡堯妒置—..vv吗據禱矜顯?.'-:?,.’.;餐兴Vv.f.,;,V柏.>子气可:片、^..^、.:片.山玉P夺扣.切;占'廓''-’^''?'.一——'.'"'?..占.v;-.沁r:;為如鑛歡謁f.:v:纖泣玲冀,..-作審师壬.
3、巧…宗_M醒ua轟瑟■.—,慰.苗議扛别所:学位类.._衣在学院资源与环巧学院莲题±__电巧麵I窠?’'‘*■’—’—---■。、,I-^.'y'夺_v;V<_r;一级二学科推:学科岛级环宽….丈满学_一式契咱,皆舞,'.‘'...?.、V::.瑞媒潘亩,巧據y皆霄讓墳苗;韻穀苗己..:'-冻V..:.V端知,V遊娩抑>安ClassifiedIndex:Code:10224Confidential(yes/no):noNO.:130210074DissertationfortheMasterDegreeT
4、heEffectsofDifferentLandUseonMicrobialCommunityinNortheastBlackSoilZoneCandidate:WangZiSupervisor:Prof.HanXiaozengDegreeCategory:MasterofAgronomyCollege:CollegeofResourcesandEnvironmentFirstleveldiscipline:AgriculturalResourcesandEnvironmentSecondleveldiscipline:SoilScienceHarbinChin
5、aJune2016目录目录摘要...............................................................................................................................................I英文摘要.........................................................................................................................
6、............III1前言...........................................................................................................................................11.1研究背景.......................................................................................................................
7、.....11.2研究目的与意义.................................................................................................................11.3国内外研究进展.................................................................................................................21.3.1土壤生态系统中微生物的作用............
8、............
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