The irrigation system of the Dujiangyan area spans 46,640 km, covering 8 cities and 41 counties, with an irrigated area of 11.548 million acres. It provides one-quarter of Sichuan Province's ...
The irrigation system of the Dujiangyan area spans 46,640 km, covering 8 cities and 41 counties, with an irrigated area of 11.548 million acres. It provides one-quarter of Sichuan Province's ...
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