air-dried soil的意思|示意

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Air-dried soil is a soil sample that has been dried in the air and not under the sun. It is a way to naturally reduce water content in the soil. It is commonly used in laboratory tests and experiments to observe the nature and properties of the soil.

When air-drying soil, the soil should be removed from the ground, sieved and laid onto a non-porous surface. Then the soil can be left to dry at room temperature, away from direct sunlight and heat sources. It is important to ensure that the soil is distributed in a thin layer, to ensure that all of the soil is dried evenly.

Air-dried soil can be used for a variety of applications. For example, it can be used to find out the particle size distribution of the soil. It can also be used to assess the composition of the soil, such as the proportion of sand, silt, and clay particles. Additionally, air-dried soil can be used for determining the mechanical strength of the soil, as well as its thermophysical properties.

In soil testing, air-dried soil is used as a benchmark for comparison with soil samples that were not air-dried. This comparison enables scientists and engineers to observe the differences between the two types of soil and how they behave in certain scenarios.

Overall, air-dried soil is an important tool for soil testing and experiments. By air-drying soil, scientists and engineers can observe its nature and properties more accurately and effectively.