Search results
Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils.
Soil is loose stuff which lies on top of the land. It has many things in it, like tiny bits of rock, minerals, water and air. Soil also has living things and dead things, called organic matter. Soil is important for life on Earth because soil holds water and nutrients. It is a very good place for plants to grow.
Soil biology is the study of microbial and faunal activity and ecology in soil. Soil life, soil biota, soil fauna, or edaphon is a collective term that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil-litter interface.
In soil survey, as practiced in the United States, soil classification usually means criteria based on soil morphology in addition to characteristics developed during soil formation. Criteria are designed to guide choices in land use and soil management .
A cross section of a soil, revealing horizons. A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture.
A soil type is a taxonomic unit in soil science. All soils that share a certain set of well-defined properties form a distinctive soil type. [1] Soil type is a technical term of soil classification, the science that deals with the systematic categorization of soils.
Soil science - Simple English Wikipedia, the free encyclopedia. Contents. hide. Beginning. Fields of application in soil science. References. Related disciplines. Other websites. Soil science. Map of global soil regions from the USDA. Soil science deals with soil as a natural resource on the surface of the earth .
