2023年全國(guó)碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、西北農(nóng)林科技大學(xué)碩士學(xué)位論文基于供需平衡的石羊河流域水資源優(yōu)化配置姓名:周益申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):水利工程指導(dǎo)教師:李援農(nóng)20081001OptimalWaterAllocationofShiyangRiverBaisnBasedonAnalysisofWaterBalanceABSTRACTShiyangRiverBasinistheareawiththelongesthistoryofirrigation,biggestpopul

2、ationdensityhighestutilizationofwaterresources,sharpestcontradictionbetweenwaterd鋤andandwatersupplythemostseriousenvironmentalproblemsinthenorthwestinland打嘴rbasinswherethewaterresourceslimitedtheeconomicaldevelopmentlarg

3、elyHenceforth,underthescientifictechnologyandmethod,allocatingthelimitedwaterresourcestomailltheoptimalgoal,isofvitalimportancetosolvetheproblemsofshortageofwaterresourcesandunbalancebetweenwaterdemandandsupplyOnmewaterb

4、alanceanalysisof2010usingthemethodsoflinearprogrammingcombinationwithcomputersoftwareMATLAB,thewaterresourceswasallocatedaccordingtothelargestoutputvalue,andthefollowingresultsweregotten:(1)Taking2000asthepresentyear,the

5、calculationandanalysisofwaterdemandandsupplyin2010wasmadeaccordingtothepresentwatersupplyprojectsscale,croptypes,cropareas,domesticwater,industrialwaterandwaterresourcesplanningofShiyangRiverBasinTheresultsshowedthatin20

6、10,thetotaldemandwaterwag228108m3with1594lOSm3foragricultureirrigation,1Ox108m3forforestry374108m3forindustry060x10Sm3forcivildomesticuseand152x108m3forruralwaterdomesticuseItshowedthattllewaterforirrigationaccountedfor6

7、99%ofthetotalwaterwhichisstillthebiggestwaterUSer(2)In2010,thewatersupplyinDajinghesystemis014x108m3,watershortageis009108m’,withthewatershortageratioof6972%ThewatersupplyinXidahesystemis425x108m3,watershortageis167x108m

8、3,withthewatershortageratioof4192%The。waterCankeepbalanceinotherresearchunitsItshowedthatthewaterprojectsintheriverbasinCanlargelyimprovethewatershortageandrestraintheoverexploitationofundergroundwater(3)Onthebasisofwate

9、rbalance,takingintotheenvironmentalwaterusefirst,takingthelargestoutputvalueasthegoal,thewaterresourceWasallocatedaccordingtothedifferentwaterusersandthevalueofforestryThentheoptimalwaterallocationmodelWasestablishedands

10、olvedwiththeadoptionofMATLABItshowedthatin2010,thetotalwatersupplvis2106xl08m3,with965xl08m3forindustry855108m3foragricultureirrigation,196x108m3forforestryirrigation,042x108m3forcivildomesticuseand048lOSm3formraldomesti

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