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《water conservancy project - influence of water resources in the yellow river on water diversion in estuaries and countermeasures（水利工程-黄河水资源现状对河口地区引水影响及对策）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Waterconservancyproject-influenceofwaterresourcesintheYellowRiveronwaterdiversioninestuariesandCountermeasures（水利工程-黄河水资源现状对河口地区引水影响及对策）[Keywords]:waterdiversion,influence,estuaryarea,countermeasure[Abstract]:theYellowRiverisanimportantwaterresourcesintheestuary,andShenglioilfielddevelopmentandcons
2、tructionofthe"lifeline",atthesametime,theYellowRiveristhesecondlargestriverinChina,becauseofthegeographicalrelations,andwaterresourcesisrelativelytightRiver,itswaterresourcesutilizationrateisthehighestriver.In1990s,theYellowRiverstoppedrunningforseveralyears,causingseriousimpactsontheestuaryofthelo
3、werreachesoftheYellowRiverandattractedwidespreadattention.Inrecentyears,thewaterresourcesintheYellowRiverhavebeenoperatedbythewholeriverinaunifiedway.Althoughtheproblemofwatercuthasbeeneffectivelysolved,thediversionofwaterintheestuaryisstilldifficulttoguarantee,andthisshouldbepaidfullattentionto.I.
4、GeneralSituationofwaterresourcesintheYellowRiverTheYellowRiverQinghaiplateauoriginatedinthenorthernfootofBayankalamountainelevation4500Midiyuegouzoncolumnbasin,flowsthroughQinghai,Sichuan,Gansu,Ningxia,InnerMongolia,Shaanxi,Shanxi,Henan,Shandongnineprovinces(regions),intotheBohaiRiver,5464kilometer
5、sinlength,watershedareaof752thousandand400squarekilometers.TheYellowRiverisanimportantwatersourceinthenorthwestandNorthChina,withanaturalannualrunoffof58billioncubicmeters,ofwhich55billion900millioncubicmetersareinthemouthofthegardenand32billion300millioncubicmetersintheLanzhousection.MorethanLanzh
6、ouandLongmentoSanmenxiarange,runoffaccountedfor75%oftheriver.TheYellowRiverbasinislocatedinaridandsemiaridregions,relativelyscarcerainfall,theaverageannualprecipitationis478mm,duetotheimpactofclimate,annualprecipitationchangedgreatlyinthetimeallocatedto80%,65%fromsixtoOctoberprecipitationaccountedf
7、orannualprecipitation,precipitationintheheydayofsevenoreight.60%oftherunoffintheYellowRiverisconcentratedinthefloodseasonforsevenoreightor93months.Inordertoslowdownsedimentdepositioninthelowerreachesoftheth
