| 韩文霆,吴普特,冯浩,杨青.方形喷洒域变量施水精确灌溉喷头实现理论研究[J].干旱地区农业研究,2003,(2):105~107 |
| 方形喷洒域变量施水精确灌溉喷头实现理论研究 |
| Varibale-rate sprinklers for precision irrigation on square area |
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| DOI：10.7606/j.issn.1000-7601.2003.02.24 |
| 中文关键词: 喷头 方形喷洒域 变量施水 精确灌溉 喷灌技术 |
| 英文关键词:sprinkler square-wetted area variable-rate application precision irrigation sprinkler irrigation |
| 基金项目:教育部重点基金(01166)； 陕西省科技攻关项目(2001K02-G3-01) |
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| 中文摘要: |
| 在总结国内外变量施水精确灌溉喷头实现方法的基础上,对方形喷洒域变量施水精确灌溉喷头的实现条件进行了研究。通过理论分析,给出方形喷洒域变量施水精确灌溉喷头的射程、流量和转速应服从的变化规律和计算公式。指出这种喷头在组合喷洒时,为保证组合喷灌均匀性达到喷灌的技术要求,需要首先提高单喷头喷灌均匀系数。通过比较分析,得出了这种喷头的最优水量分布曲线应为类矩形的结论。研究结果为方形喷洒域变量施水精确灌溉喷头实现方法的研究提供了理论依据。 |
| 英文摘要: |
| This paper gave a survey on the variable-rate sprinklers for precision irrigation. The variation principles of the throw distance, flow rate and rotation speed of variable-rate sprinklers for precision irrigation on square area were given. The irrigation uniformity for single sprinkler of this kind should be improved when multi-sprinklers are spaced for irrigation. And the ideal distribution pattern of sprinklers of this kind had been developed. The results provided theoritical supports for the design of variable-rate sprinklers for precision irrigation on square area. |
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