论文部分内容阅读
土壤水分蒸发是土壤水分平衡的重要因素,是土壤物理实验分析的重要测试项目之一。铝盒法和蒸发器法测定土壤蒸发是两种常见的测定方法,二者分别是室内实验和室外试验。为了使学生了解土壤蒸发的过程及特点,训练学生的科研数据获取能力,对实验项目进行了改进与发展。改进后的室内实验可以使学生了解土壤蒸发的过程,室外实验可以使学生掌握实际土壤蒸发的测定方法。实验现象比较明显,方法利于学生掌握。
Soil water evaporation is an important factor of soil moisture balance and is one of the important test items of soil physics experiment analysis. Aluminum box method and evaporator method to determine soil evaporation are two common methods of determination, the two are indoor experiments and outdoor experiments. In order to make students understand the process and characteristics of soil evaporation, training students to acquire scientific research data, the experimental project has been improved and developed. The improved indoor experiments enable students to understand the process of soil evaporation. Outdoor experiments allow students to master the method of determining actual soil evaporation. The experimental phenomenon is obvious, the method is conducive to students to master.