科技创新与应用2024，Vol.14Issue(25)：80-83,4.DOI:10.19981/j.CN23-1581/G3.2024.25.020
农业冻土冰含量测量方法试验研究
摘要
Abstract
As one of the key variables in the freezing and thawing process of agricultural permafrost,the ice content in agricultural permafrost affects the dynamic change of soil moisture,the loss of soil nutrients and the stability of farmland ecological environment.According to the principle of mass conservation and volume transformation,a self-made experimental device for measuring ice content in agricultural frozen soil was made,and ice content measurements were carried out at-20,-25,and-30℃and soil moisture content of 15.7%,23.5%and 31.4%.The results show that the ice content in agricultural frozen soil samples increases with the decrease of freezing temperature.When the freezing temperature reaches-30℃,the mass content of ice reaches a constant peak.At the same freezing temperature and with different moisture content,the percentage of ice mass content tends to be an average,and the difference between the maximum value and the minimum value is about 2%.关键词
农业/冻土/冰含量/测量/冻结温度Key words
agriculture/frozen soil/ice content/measurement/freezing temperature分类
农业科技引用本文复制引用
李松,殷哲,焉莉,王鹏鹰,刘春慧,姜玲,郭洪宇,付辰琦..农业冻土冰含量测量方法试验研究[J].科技创新与应用,2024,14(25):80-83,4.基金项目
吉林省教育厅项目(JJKH20220338KJ) （JJKH20220338KJ）
