氣候變化對長江中下游地區(qū)水稻生產的影響及適應性研究.pdf_第1頁
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1、中國農業(yè)科學院碩士學位論文氣候變化對長江中下游地區(qū)水稻生產的影響及適應性研究姓名:趙海燕申請學位級別:碩士專業(yè):氣象學指導教師:許吟隆20060501AbstractTheaveragesurfketemperatureofeanhwasrecordedupby0602℃oVerthe20’“centuryandinChina05℃~08℃increasewasshowninthesameperiodGlobalclimatechang

2、ewiHa何色ctgreatlyenvironmental,ecolo酉calandsocialeconomicsystemssinceagricultureisoneofthemostsensitivesectorstoclimatechange,itisofsignificancetoevaluateimpactsofclimatechangeonrice(oneofmainthreefoodstufrcmp)Inordertore

3、ducetheha咖ofclimatechange,adaptabilitystudyisnecessary,whichsve叫importanttocropsupplysafetyinChinaRiceexperimentda七aandobservedmeteorologicaldataat48earlyricestationsand30middlericestationfrom19812003wereappliedt0analyze

4、therelationoftemper咖reandprecipitationandrjcecomponents,focusingonanalysisoft|1reestagesnowering,premiIkandlatemilkThepu耳loseofthestudywastoexploretheimpactsofhistoricalclimatechangeonriceelementsnwasgroundworkofimpactsa

5、ssessmentofclimatechangeinthefutureBasedonhistoricalanalysis,impacts0fclimatechangeon—cewereevaluatedFirstly’cropmodelwasValidatedusingriceexperimentdata;secondly,outputofPREcIs(ProVidingRegionaIclimatesforImpactsstydies

6、)drivenbyEcMwFreanalysisdata(ERA)wereemployedtocropmodeltovalidatethelinkageappmachofPRECISoutputswithcmpmodel;Thirdly,growthseasona11dyieldofriceatastationwereevaluatedunderA2andB2scenanosin2080s(2071—2100);Finally,some

7、adaptjvemeasures,suchasadjustingplantingdate,cultiVatinga11dint∞ducingnewricetype,werepresentedbytheresultsofsimulation,Theconclusionsareasfollowing:1_Hjstoricalanalysis:rainhadnegatjvee髓ctoneanyriceats【agesofnoweringand

8、milkthi曲ertemperaturewouldbene白tearlyriceBesidesran,duratiVehottemperaturewouIdaddpercentageofundeVelopedgrainandpaniallydeVelopedgminofmiddIericeSohistorjcal910balwanningwoulda虢ctmiddlericeoVerthemiddleandloweroftheYan百

9、zeriVerII、,alidationoflinkageapproachofcropmodeIandPRECISoutput:Comparisonbetweensimulationandobservatjonindicatedthatt11eapproachofPRECIScoupledCERESRicewasfeasibleandcouldevaluatechangeofriceyieldandgro、vthseasonunderA

10、2andB2scenarios111Climatechangeimpactsassessment:UnderA2andB2scenarios,growthseasonofricewouldbeshonened,themostshorteneddaysofearlyandmiddlericewouldbel8and25respectively:WiIhoutC02directe腩ct,earIyandmiddlericeyieldwoul

11、dbereduced17%~4l%(A2scenarjo)and9,0%~36O%(B2scenario)respectively;WilhC02directe艉ct,C02fenilizationefr音ctmayo仃etnegativeimpactsofclimatechangeon—ceandtheyieldofsomericestationwouldincreasethemostincreasewouldbe26O%(B2sce

12、na—o)IVAdaptabiIitystudy:AdvancingplantingdatewouIdbebene打cialtoearly—ceandpostponingthedatetomiddIe—ceYieldearlvandmiddlericewouldberosebvl66%a11d173%comDaredwithyieldunderthesamescena打os;increasjngthevalueofG4(temperat

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