Thedujiangyanirrigationprojectislocatedinthechengduplaininsichuanminjiangriveronthewestsideofthewesterncityofdujiangyan,56kmawayfromchengdu.Wasbuiltin256BC,isthewarringstatesperiod,qinshusatrapbingleadsthepeopletobuildalargewaterconservancyprojects,uptonowstillinirrigatedfarmland,isthewell-beingofthepeopleofthegreatwaterconservancyproject.Itsischaracterizedbyslong,undammeddiversion,istheancestoroftheworldwaterculture.Theprojectismainlycomposedofyuzuiwater-dividingdike,flysanddamspillway,thethreemostBaoPingKouinletandbaizhangdike,herringbonedamandotheraccessoryworks,scientificallysolvetheautomaticdistributaryriver(theyuzuiwater-dividingdikeallocationwater),automaticandsand(secondfromtheyuzuiwater-dividingdikeeightsand),controlthewaterflow(BaoPingKouandflysanddam),eliminatesthefloods.Theirrigationareaof668700hectares,1998irrigationareahasreachedmorethan40counties.
Consistsoffeedinghub,dujiangyanirrigationareawaterdiversionchannelsatalllevels,allkindsofengineeringbuildingsandbigsmallandmedium-sizedreservoirsandriversofalargeengineeringsystem,carryingoutthesichuanbasininthecentralandwesternregions7cities(ground)36counties(city,area)morethan10.03millionacresoffarmlandirrigation,morethan50keyenterprisesofchengduandurbanwatersupply,andfloodcontrol,powergeneration,andfloatingwater,aquaticproducts,aquaculture,multipletargetintegratedservicessuchasfruit,tourism,environmentalprotection,isirreplaceableinsichuanprovince,thenationaleconomicdevelopmentandwaterconservancyinfrastructure,thesizeofitsirrigationareainthecountry.
Dujiangyanislocatedinminjiangriveralluvialplainofthevalleyintotheriver,itirrigationscullingcountyeastofchengduplain,whiteonthefarmland.Originalthroughthetopographyofsteephillsoftheupperreachesofminjiangriver,onceinthechengduplain,waterspeedslowdownsuddenly,thusplacingalotofsedimentandrocksdepositedthen,siltationoftheriver.
Everyrainyseason,theminjiangriverandothertributariesofthewatershedwatersoftenoverrun;Rainisinsufficient,willcausedrought.Longbeforedujiangyaninto2,threehundred,theancientshukingdomcuckookingforliberal,openaartificialriverinthemountainareaofminjiangriver,minjiangriverwaterintotheriver,inadditiontothedamage.,
Dujiangyanirrigationareaisthemosteconomicallydevelopedareasinsichuanprovince,istheheartofpolitics,economyandcultureinsichuan."Thejiepeoplespirit",historyisthe"landofabundance"reputation.Irrigationareawithinthenaturallandscape,culturallandscape,cityhuacaiandurbanscenery,colorful,beautiful.Irrigationandwaterconservancy,dotted,eachexhibitioncharm,eachhasitsowncharacteristics,pleasing,"people'scanal,DongFengQu,sanheweir,weir,floatwater";theblackdragonpool,sanchalake,reservoir,lakerippletwinkling;longquanscored,characterizedbyopen,waterrises".Fullirrigationareapresentsthe"longwalkontheground,theMilkyWaytheskyflow;rainbowvalley,happiness.tothepinghu"grandpicture.