采取合理井灌比例对银川平原盐渍化防治与改良对策

Soil salinization prevention and improvement countermeasures study with take reasonable well irrigation ratio on Yinchuan plain

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 the largest one of the major issues that affect the agricultural production of the Yinchuan Plain, has been restricting the Yinchuan Plain in social and economic development. This paper uses the canal irrigation and well irrigation combination irrigation way, through the comparison of various options, to prevent and improve the soil salinization. Final, determine a reasonable proportion of well irrigation, reasonably use part of diving, to change the current single quoted the Yellow River water for irrigation mode. This can prevent and improve the soil salinization, improve soil quality, and reduce the diving invalid evaporation, improve water use efficiency, reduce the burden of the plains drainage, ease the contradiction between supply and demand of the plain water resources.