Which of the following best describes the term 'psamment'?

The term 'psamment' refers specifically to a soil that is predominantly composed of sand. Psamments are typically found in environments where sandy deposits are prevalent, which can result in well-drained soils that are generally low in nutrients and organic matter. This sandy texture means that psamments often have high porosity and permeability, affecting water retention and nutrient availability.

In soil classification systems, particularly in the USDA Soil Taxonomy, psamments are recognized for their distinct physical characteristics, primarily their coarse texture. This classification highlights the importance of texture in soil taxonomy and its implications for land use, agriculture, and ecology.

Understanding the nature of psamments, as sandy soils, helps in recognizing their limitations, such as lower water retention capabilities compared to finer-textured soils. This knowledge is particularly important for agricultural practices and managing soil health.