ELI5: Explain Like I'm 5

1938 USDA soil taxonomy

The 1938 USDA Soil Taxonomy is a system used by scientists to study and categorize different types of soil. It helps them understand how soils are formed and how they can be used for farming and other purposes.

Just like you might sort your toys into different groups based on their color, size, or shape, scientists use the 1938 USDA Soil Taxonomy to sort soils based on their properties. Some of the things they look at include the size and shape of the soil particles, the amount of water the soil holds, and the nutrients that are present in the soil.

The 1938 USDA Soil Taxonomy has different levels of classification, just like when we talk about different kinds of animals. The top level is called the order, and there are 12 different soil orders in the system. Some of these orders include Alfisols, which are soils that have a lot of aluminum and iron, and Ultisols, which are soils that have a lot of clay and are often found in subtropical regions.

Each order is further divided into suborders, great groups, subgroups, and families. These categories are like smaller and smaller groups that help scientists get a more detailed understanding of each type of soil.

Why is this system important? It helps farmers and other land managers understand how to use different types of soil best. Some soils are good for growing certain crops, while others might be better suited for different uses. Knowing the properties of different soils can also help scientists understand how to conserve and protect these soils for future generations.