👉 Trophesial, also known as a "trophic layer," is a type of soil structure that forms on top of organic matter in an ecosystem. It is composed of layers of minerals and organic materials, including plant roots, soil particles, and organic matter. The term "trophesial" comes from the Greek word "thrope" meaning "layer" or "layered," which indicates that the soil structure has been deposited over time by layers of soil particles and organic material