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气量法作为一种新的土壤水分测定方法,具有便捷、快速、准确的特性。准确及时测定土壤水分含量有利于研究和了解水土流失变化规律、土壤水分动态变化规律和空间立体分布；同时掌握不同植物在同一时期对土壤水含量的不同要求,同一植物在不同时期对土壤水分含量的不同要求以及土壤水分含量对其产量的影响。其测定方法可分为体积法、失重法。气量法是一种稳定、准确、快速的土壤含水量测定方法,气量失重法与气量体积法相比较,气量失重法所需仪器更为简单,操作更为简捷。可适用于农业、林业试验土壤含水量的测定,另外此装置还可以应用到其他农业科学研究。
Gas method as a new method for measuring soil moisture, with convenient, fast and accurate characteristics. Accurate and timely determination of soil moisture content is conducive to the study and understanding of the law of soil and water loss, dynamic changes of soil moisture and three-dimensional spatial distribution; at the same time master different plants in the same period of different requirements for soil water content, the same plant in different periods of soil moisture content The different requirements and the impact of soil moisture content on its yield. The determination method can be divided into volume method, weight loss method. Gas method is a stable, accurate and rapid method for determination of soil moisture. Compared with the gas volume method, the gas mass loss method is simpler and the operation is more simple. It can be applied to the determination of soil water content in agricultural and forestry experiments. In addition, this device can also be applied to other agricultural scientific research.