就宁夏引黄灌区而言，气候变暖对水稻单产的贡献为2.51%。
In irrigation area of Ningxia, the contribution of climate warming to rice yield was 2.51%.
根据田间试验对宁夏引黄灌区水稻需水规律及节水灌溉条件下水稻田水分利用效率开展研究。
Study of water-demand regulations and water use efficiencies under condition of different irrigation systems of rice were carried out by serial field-scale experiments.
本文应用农田水量平衡原理，建立了宁夏引黄灌区麦田灌溉横型，并对模型中有关参变量的计算进行了讨论。
This paper, using the principle of field water balance, establishes the irrigation model of Ningxia Yin-huang irrigation area, and discusses the calculation of parameters in the model.
凌期平均封河日期推迟、平均开河日期提前、封冻天数缩短，冰情、冰害有所减轻且主要发生在库区；在一定程度上缓解了宁夏引黄灌区春灌缺水的局面。
The average number of river frozen days has been reduced and the problems associated with ice have been minimized and limited to the reservoir area.
凌期平均封河日期推迟、平均开河日期提前、封冻天数缩短，冰情、冰害有所减轻且主要发生在库区；在一定程度上缓解了宁夏引黄灌区春灌缺水的局面。
The average number of river frozen days has been reduced and the problems associated with ice have been minimized and limited to the reservoir area.
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