Which term describes the loss of topsoil?

Soil erosion is the correct term that describes the loss of topsoil. This process occurs when wind, water, or human activity removes the upper layer of soil, which is crucial for agricultural productivity due to its high nutrient content. The topsoil layer contains organic matter, moisture, and essential nutrients that support plant growth. When this layer is lost, it can lead to decreased agricultural yields, desertification, and increased sedimentation in water bodies.

In contrast, soil enrichment refers to the process of adding nutrients to the soil, improving its fertility and structure. Soil salinity involves the accumulation of soluble salts in soil, which can adversely affect plant growth and crop yields by making it difficult for plants to absorb water. Soil compaction refers to the compression of soil particles, which can reduce porosity and permeability, making it harder for roots to grow and for water to infiltrate. Thus, the term that accurately captures the loss of topsoil is indeed soil erosion.