What is the arrangement of soil particles into aggregates known as?

The arrangement of soil particles into aggregates is referred to as soil structure. This term describes how soil particles, such as sand, silt, and clay, are grouped together to form clusters called aggregates or peds. Soil structure plays a crucial role in influencing water infiltration, aeration, root penetration, and the movement of nutrients within the soil.

Good soil structure can enhance soil stability, improve drainage, and create favorable conditions for plant growth. In contrast, poor soil structure may lead to compacted soils, reduced aeration, and hindered root development. Understanding soil structure is essential for effective agricultural practices, as it directly impacts the soil's function and productivity in supporting plant life.

The other terms represent different aspects of soil science: soil texture refers to the relative proportions of sand, silt, and clay; soil layers pertain to the different horizons found within the soil profile; and soil composition involves the collection of substances that make up the soil, including organic matter, minerals, gases, liquids, and organisms. However, these concepts do not specifically relate to the aggregation of soil particles, which is why soil structure is the most accurate choice for this question.