THE Dujiangyan Irrigation System that has turned the 733,300-hectare Chengdu plain into farmland with constant good harvests, was constructed 2,200 years ago. As an exceptionally good example of...
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THE Dujiangyan Irrigation System that has turned the 733,300-hectare Chengdu plain into farmland with constant good harvests, was constructed 2,200 years ago. As an exceptionally good example of...