基于bp神经网络的宁夏水资源-需求量预测

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1、⑧万方数据硕士学位论文MASTER’STl{ESlSAbstractWateriSthesourceofallthings．Thedevelopmentandutilizationofwaterresourcesisrelatedtothedevelopmentoftheentirenationaleconomy．Inrecentyears，Reformandopeningarepenetratedeeply，China’Surbanizationandeconomicarerapidlydeveloping，SOdemandforwaterresourcesaremoreandmore

2、．thecontradictionbetweensupplyanddemandofwaterresourceshascausedconcerninthecommunity．Therefore，watersupplyanddemandbalanceofwaterdemandforecastingbasedonwaterresourcemanagementinscienceisparticularlyimportant．WaterresourceofNingxiaHuiAutonomousRegionisoneofwhichthepercapitawaterresourcesisleasti

3、nNorthwestChinaregion．WatershortageinNingxiapresentedasresource—shortage，water-shortage，engineering-shortageandwaste-shortage．NingxiaHuiAutonomousRegionisalsooneofChina’Spoverty-strickencountiesmoreprovinces．WitllthedevelopmentofWesternDevelopment，NingxiaHuiAutonomousRegion’Sthelevelofsocio-econo

4、micdevelopmentandPeople’Slivingstandardshasrapidlyincreased，NingxiaHuiAutonomousRegion’SIndustrialprocesswater,Residentialwaterisgrowing，problembetweenwatersupplyanddemandinNingxiaHuiAutonomousRegionisparticularlysevere．WatershortagehasbecomeamajorbottleneckoftheNingxiaHuiAutonomousRegion’Ssocio—

5、economicdevelopment．ThispaperstudiesthefuturewaterdemandinNingxiaHuiAutonomousRegiontoanalyzeandjudgetheamountoffuturewatershortages．Throughsolvingtheproblemofresource—shortage，water-shortage，engineering-shortageandwaste-shortage，watershortageproblemsinNingxiaHuiAutonomousRegionwillbealleviated．B

6、asedonsummaryandanalysisofdomesticwaterdemandforecastingstudyhistoryandresearchmethods，accordingtotheNingxiaHuiAutonomousRegion’Sdevelopmentandthestatusquoofthenatural，exploitationandusecharacteristicsofwaterresources，ThispaperanalyzesandsummarizestheNingxiaHuiAutonomousRegion’Shistoricaldataofth

7、ewateranditsinfluencingfactorsoverthepast13years，Theyhavefoundthatnon—linearcharacteristics，andthendecidedtousetheimprovedBPneuralnetworkmodelforthe2015and2020’SwaterdemandforecastingoftheNingxiaHuiAutonomousRegion，fol