论文部分内容阅读
盐分是作物生长所必须的微量元素,但土壤含盐浓度超过作物正常的耐盐力,将会使作物产生生理干旱,扰乱作物正常的生理代谢,影响作物的生长,从而影响作物产量或绝产。通过分析引黄灌溉对灌区土壤含盐量的影响,探索土壤含盐量与引水灌溉的关系,研究水盐运动规律,寻求更好调控水盐的新方法,对山东省引黄灌区的节水改造与盐碱地改良、防治有一定的实用意义。
Salinity is a necessary trace element for crop growth. However, if soil salinity exceeds the normal salt tolerance of crops, it will cause physiological drought in crops, disrupt the normal physiological metabolism of crops, and affect crop growth, thus affecting crop yield or abortion . Through analyzing the influence of Yellow River irrigation on the soil salinity in irrigated area, exploring the relationship between soil salt content and water diversion irrigation, studying the law of water and salt movement and seeking new methods to better control water and salt, Improvement and improvement of saline-alkali, prevention and treatment have some practical significance.