论文部分内容阅读
此项试验的目的是为了探讨在磁化水冲洗条件下土壤盐分运动的规律,以有助于了解磁化水改良盐碱土的效果和作用。一、试验材料与方法供试土样为砂壤土,机械组成和基本条件如表1,供试水样化学分析结果如表2。试验方法简述如下:1.按土壤含盐量0.5%计算,称取定量的碘化钠溶于放射性~(131)I 溶液中,以该溶液徐徐倾入称重土样内,拌均匀焙干后,制成放射性~(131)I 的土样。2.把含有放射性碘的土样装入直径为1厘米的玻璃管内(玻璃管下端有纱网防止漏土),制成一米高的土柱。为避免由于重力加速度作用,不同颗粒产生自然筛分现象,影响试验精
The purpose of this experiment is to explore the law of soil salinity movement under the condition of magnetized water washing to help understand the effect and effect of magnetized water to improve saline-alkali soil. First, the test materials and methods for the test soil samples for sandy loam, mechanical composition and basic conditions in Table 1, the test water chemical analysis results in Table 2. The test method is summarized as follows: 1. According to the soil salt content of 0.5%, weighed amount of sodium iodide dissolved in radioactive ~ (131) I solution, the solution slowly poured into a weighed soil sample, mix evenly baked Dry, made radioactive ~ (131) I soil samples. 2. The radioactive iodine-containing soil sample into the diameter of 1 cm glass tube (glass tube bottom gauze to prevent leakage), made of one-meter-high soil column. In order to avoid due to the role of gravity acceleration, different particles produce a natural screening phenomenon, the impact of test precision