农业灌溉用水严重浪费，更加重了水资源的危机。
Much waste of water for inigaion has made the crisis of water meura more serious.
水分生产率是评价农业灌溉用水管理水平和节水效果的一个重要指标。
Agricultural water productivity is an important indicator to assess the effect of irrigation water management and water conservation.
地下水资源是水资源的重要组成部分，许多城市供水和农业灌溉用水都依靠地下水资源。
The ground water resources are the water resources important constituent, many cities water supplies and the agricultural irrigation water used all depends upon the ground water resources.
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