摘要
本文探讨了用测得的主要阴离子总量(C∑A来计算土壤盐分总量的方法,并举例试算。经验证表明,这一计算方法不仅精度高,适应范围也广,凡土壤盐分在0.05%~50.0%范围内,不受地域抑制,也不受盐渍土类别的化学组成差异影响,其计算结果与离子总量比较,相对误差均小于±10%,其中小于5%者可达90%以上,由于获取C∑A数值简便,可在基层化验室试用。
Test and calculation confirmed that this method was highly accurate and well adapted when the total saltin soil ranged from 0. 05% to 50. 0%. Comparing the result calculated with the actual total ion content, therelative error was less than ±10%, and less than ±5% for more than 90% of samples, being free from in-fluence by regions and chemical composition of the saline soil. As it is easy to test the total content of mainanions, this method can be used in any laboratory.
出处
《山东农业科学》
1996年第5期46-49,共4页
Shandong Agricultural Sciences
关键词
土壤盐分总量
计算方法
离子总量
土壤浸出液
Total salt in soil, calculating method, total ion content, main anions