控制性增溫和施氮肥對荒漠草原土壤的影響.pdf

1、內(nèi)蒙古農(nóng)業(yè)大學碩士學位論文控制性增溫和施氮肥對荒漠草原土壤的影響姓名：包秀榮申請學位級別：碩士專業(yè)：土壤學指導教師：紅梅20090501TheEffectsofExperimentalWarmingandNitrogenAdditiononSoilinDesertSteppe^bstractTostudytheeffectofwarming，nitrogenfertilizerandthecompoundefleetofthewanni

2、ngandthenitrogenfertilizeronthecommunitiesoftheBrevifloraArtemisiafrigidaCleistogenessongoricadesertsteppeinInnerMongoliaandtheproductionabilityoftheplain，thesampleplotwasheatbytheMSR2420in6鼉redradiatorswhilebeingprocess

3、edbythenitrogenfertilizerInasimulatedglobalwarmingcondition，weresearchtheeffectofwarmingandNadditiononsoilandexplorethedesertgrasslandecosystemstoglobalclimatechangeresponsemechanismforourGlobalChangeandTerrestrialEcosys

4、temsprovidelongtermresearchplatformTheresultofPapershowed：1)Duringtheexperiment(formonJune24，2006toonOctober11，2008)，comparisonwithCK(0cm，75cm，15em，30eraand50cm)，thetemperatureofsoilincreased142(2，098“C，094“C，O81℃and071℃

5、inwarmingplot，respectivelyThevariabilityofsoiltemperaturewaslargerinupperthaninlower，especiallyin2008，thesignature(，005)3)Warmingimprovedthecontentofsoilorganicmatter，totalnitrogen，totalphosphorus，nitrogenspeed，speedP，Sp

6、eedK，ammoniumnitrogenAmongofthem，warmingoftheorganicmatter，fertilizer，rateofphosphorus，ammoniumnitrogenfertilizerwashighelthanwarmingplusNsupplyIn2007，soilorganicmatter，phosphorus—speedin2007with10—20cmissignificantly(尸O

7、05)inwarmingplotshigherthaninwarmingplusNadditionplots，NadditionplotsandCKplotsThecontentoftotalphosphorus，totalnitrogen，speednitrogen，speedpotassiumwashighel“inwarmingplusNadditionplotsthanwarmingplotsComparedwithwarmin

8、g，NadditionandCK，thecontentoftotalnitrogenwith1020erawashigller(尸005)inwarmingplusNadditionplotsBothtWOyears(in2007and2008)，thecontentofspeednitrogenandspeedpotassiumwith030crnWashighel“(PO05)inwarmingplusNadditionthanot