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土壤盐渍化是影响银川平原农业生产的最大重大问题之一,多年来一直制约着银川平原社会经济的发展。本文采用渠灌和井灌相结合的灌溉方式,通过对各种方案的对比,对土壤盐渍化防治与改良进行分析研究。最终确定合理的井灌比例,合理地开发利用部分潜水,以改变目前单一引用黄河水进行灌溉的灌溉模式。这样不仅能防治和改良土壤盐渍化,使土壤质量得到改善,而且还能减少潜水的无效蒸发,提高水资源的利用效率,减轻平原的排水负担,缓解平原水资源的供需矛盾。
Soil salinization is one of the largest and major problems affecting agricultural production in the Yinchuan Plain, which has been restricting the social and economic development of the Yinchuan Plain for many years. In this paper, a combination of canal irrigation and well irrigation with irrigation methods, through the comparison of various programs, the prevention and treatment of soil salinization and improvement analysis. Ultimately determine the proportion of well-well irrigation, rational development and utilization of some submersible, to change the current single reference to the Yellow River irrigation for irrigation mode. This will not only prevent and improve soil salinization, soil quality will be improved, but also reduce the ineffective evaporation of diving to improve the utilization efficiency of water resources, reduce the drainage load on the plain and ease the contradiction between supply and demand of plain water resources.