负压灌溉法是一种新近提出的节水灌溉技术,灌溉时供水水头为“负值”,即灌溉水源高程低于灌水器高程。
Negatively pressurized irrigation (NPI) method, a newly irrigation technology, in which the elevation of the emitters is higher than that of the water source, runs under negative hydraulic head.
该法可供节水灌溉供水系统设计和运行时参考,类似的供水系统设计和运用时也可借鉴。
All of these can supply references for designing and running of the water-saving irrigating and supplying system as well as the similar water-supplying system.
通过逐步回归法、概率测算法、二次平均先进法和简单几何平均法得到北京市宾馆不同节水水平下综合用水定额值;
The total quota of water use in different level of water saving was put forward based on regression analysis, probability estimation analysis, advanced quadratic mean method and geometric mean method.
最后,通过隶属函数法综合评价被试品种的抗旱节水性。
Finally, a comprehensive evaluation on drought resistance of different cultivars was given according to subordinate function values analysis.
最后,通过隶属函数法综合评价被试品种的抗旱节水性。
Finally, a comprehensive evaluation on drought resistance of different cultivars was given according to subordinate function values analysis.
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