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Dujiangyanistheoldestandonlysurvingno-damirrigationsystemintheworld;
jectconsistsofthree
importantparts,namelyYuzui,FeishayanandBaopingkouscientificallydesigned
toautomaticallycontrolthewaterflowoftheriversfromthemountainstotheplains
throughouttheyear.
Yuzui,likeabigfishlyingintheMinjiangRiver,isawatersheddividingtheriver
intotwoparts:
Yanisaspillwaythatdivertsthesandand
gKou,likeaneckofabottle,is
ametime,BaopingKou
hree
partsinteractwitheachotherperfectlytoformaneffectivewater
thelow-waterason,60%oftheMinjiangwateris
broughtintotheinnerriverforirrigationwhile40%ofthewaterisdrawnintothe
uationisreverdinthefloodasonensuringthewatersupply
forirrigationandprotectionfromfloodingontheChengduPlain.更多信息请访问：
http:
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