京郊種植業(yè)水資源持續(xù)高效利用優(yōu)化研究——以北京市順義區(qū)為例.pdf

1、中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文京郊種植業(yè)水資源持續(xù)高效利用優(yōu)化研究——以北京市順義區(qū)為例姓名：徐杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：作物栽培學(xué)與耕作學(xué)指導(dǎo)教師：陳阜20030601AbstractTheconflictofwaterconsumptionbetweenindustryagricultureandlivingisbecomingsharpinsuburbsofBellingBasedoncasestudyinShunyiCoun啦wate

2、rrequirementandwaterUSeefficiencyofcrops軸theregionwerestudiedthroughonsiteexperimentandtypicalhouseholdsurveyon攮egroundofanalysesofthesustalnabilityofregionalwaterresourcebalance，thetrendofwateruseinthefutureWasprojected

3、inthispaperWatersavingcroppingstructureandtheoptimizationofcroppingpatternwerealsodiscussed，Mainresultsaregeneralizedasfollows：Indryyearcouplingfitnessofwaterrequirementtorainfallreaches90％forsorghumandspringmilletduring

4、crop’SgrowthandreproductiveseasoninShunyicountywhile85％forpeanutandsoybean70％forsprlngcornandcotton。65％foralfal氟and55％forcroppingpatternofricefollowedbywheatComlⅪredwithcouplingfitnessofwaterrequirementtainfall，crop’Swat

5、errequirementandirrigationrequirementshOWthecontrary枉燃證，s。autumncropsshouldnotplantedexcessivelybecauseoftheseafcewaterreSOUreesWateruseefficiencyinShonyiiscomparatively12∞％lowerthannationallevel戢presentforcropsexceptric

6、eandsoybean，whichmedlnsagreatwatersavingpotentialintheregionaccordingtocomparisonbetweenexperimentalobServationandestimation，F(xiàn)ormostcropsyieldpotentiale囊nhardlybeincreased。ThereforeitisnecessarytoenhancewatersavingeffMen

7、cyofcroppingintheregion，Basedonthetrendsofpresentcroppingdevelopmentandirrigationefficiencyincrea∞intheregion，watersupplycarlmeetirrigationby89％in201075％in2020and70％in2030tocropswaterrequirementundernormalcondition。Water

8、supplyearlmeetirrigationby100％in20t088％in2020and83％in2030to85％ofcropsWaterrequirementundernormalcondition。Thesituationofwatershortageintheregionismoreauste％indryyearIntheviewofregionalwaterbalanceandcroppingklJ蹦Onefficie

9、ncyincreaseoptimizedmodelforthemidlongterracroppingWaSproposed。Practicingthesepatterncanguaranteewaterresourcesbalance。satisfytherequirementofproduction，economicincreaseandecologicalefficiencyforagriculture，KeyWords：subu