| 摘要: |
| 本文提出了推算畦灌水流推进过程的一个数学模型。田间试验表明,该模型的平均误差小于4％,最大误差小于10％。根据这个模型,文中还提出了计算改水成数和畦长的公式。 |
| 关键词: 水量平衡,水流推进过程,改水成数,合理畦长 |
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| A MATHEMATICAL MODEL FOR THE FLOWING OF BORDER IRRIGATION WATER |
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Wang Zhi
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| Abstract: |
| A mathematical model was presented for predicting the advancing ghrase of the border irrigation water.Field experiments indicated that the average errors of the model were less than 4%,and that the maximum errors were less than 10%. Based on this model,the formulas for predicting water cutoff ratio and the length of border were proposed in this paper. |
| Key words: water balance,the advancing ghrase,water cutoff ratio,reasonable border length |
