论文部分内容阅读
随着原子能工业的发展,放射性同位素示踪法已广泛应用于很多学科领域。五十年代后期,国内外研究者也开始将这种方法应用于盐碱土研究中来,首先对土壤水盐运动进行了室内模拟试验,但多数都是用直径较小的玻璃管装搅动土壤作土柱进行的。用玻璃管作土柱进行试验有其优点,但如玻璃管的直径太小,其管壁对土壤毛管水上升有一定影响,直径愈细,
With the development of atomic energy industry, radioisotope tracer method has been widely used in many disciplines. In the late 1950s, researchers at home and abroad also started to apply this method to saline-alkali soil research. First, indoor soil-salt movement experiments were carried out in-house. However, most of the experiments were carried out by agitating the soil with smaller diameter glass tubes Soil column carried out. The use of glass tube for soil column test has its advantages, but if the diameter of the glass tube is too small, the tube wall of the soil capillary water up to a certain extent, the smaller the diameter,