水平梯田是为保持水土、种植作物或树木而将缓坡地（一般小于15°）改成水平的台阶式田地。
同时，水平梯田的质量对其减水减沙效益影响很大。
Meanwhile the quality of level terrace effects its soil and water conservation benefit greatly.
各地可直接利用该曲线，查出水平梯田减水减沙效益值。
Each place can find out the benefit value of water and sediment reduction of terraces by using the curve.
陕北水平梯田埂坎常因设计不合理或施工质量较差而坍塌。
The earthbank of terraced field in North Shaanxi Province often collapsed due to irrational design and poor quality of construction.
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