Edaphology
Edaphology studies soil in relation to living things, especially how soil properties affect plant growth and land use.
Soil: Soil is a dynamic mixture of mineral particles, organic matter, water, air, and organisms at Earth's surface. Edaphology examines this material as a habitat and resource for plants and other life.
Soil fertility: Soil fertility is the capacity of soil to supply essential nutrients in forms and amounts that support plant growth. It translates soil properties into a central practical question: whether crops can obtain enough nutrients.
Pedology: Pedology studies soil as a natural body, including its formation, classification, and distribution. It emphasizes soil genesis and landscape patterns, while edaphology emphasizes soil in relation to living things.
Friedrich Albert Fallou: Friedrich Albert Fallou was a nineteenth-century German scholar of soil and one of the early figures in pedology. His work helped establish soil as a subject of systematic study alongside emerging applied approaches.
Soil degradation: Soil degradation is the decline of soil condition or function through physical, chemical, or biological deterioration. It shows how land use can diminish the soil properties that support life and production.
Soil texture: Soil texture is the proportion of sand, silt, and clay particles in a soil. Particle-size proportions shape drainage, aeration, and the ease with which roots penetrate soil.
Soil testing: Soil testing measures selected physical or chemical properties to guide management decisions. Tests help assess nutrient status, pH, and amendments needed for a crop or site.
Soil science: Soil science is the interdisciplinary study of soil formation, properties, classification, and management. Edaphology is one perspective within this broader study of soils.
Vasily Dokuchaev: Vasily Dokuchaev was a Russian geologist who established foundational principles of modern soil science. His account of soil formation provided a scientific basis for distinguishing soil study from geology.
Ecosystem services: Ecosystem services are benefits people obtain from ecosystems, including food production and water regulation. Soil-mediated growth and water processes contribute to services on which societies depend.