Soil formation, also known as pedogenesis, is the process of soil genesis as regulated by the effects of place, environment, and history. Biogeochemical...

plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil. Soil consists...

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...

one or more of the following processes of soil formation: formation of soil aggregate structure formation of clay minerals and/or oxides accumulation...

(sphaîra) 'sphere') is the outermost layer of the Earth that is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere,...

(/ˈtʃɜːrnəzɛm/ CHUR-nə-zem), also called black soil, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus (4% to...

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. Soil type...

composition and amount, and affects the formation of the soil. It is directly related to human activity. Soil degradation may also be viewed as any change...

of soil are typically performed in the field on a soil profile containing multiple horizons. Along with soil formation and soil classification, soil morphology...

pedon, "soil"; and λόγος, logos, "study") is a discipline within soil science which focuses on understanding and characterizing soil formation, evolution...

since the initial pedogenesis (soil formation). Using these ideas as a starting point, he developed the very first soil classification. His ideas were...

older land surfaces where soil formation has occurred over a much longer period, in addition to some young soils. There are 12 soils in the U.S. Although the...

in Tierra del Fuego. Podzolization (or Podsolization) is a complex soil formation process by which dissolved organic matter and ions of iron and aluminium...

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...

Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture...

observations of soil into a systematic approach. He explained why soil formation was worthy of study and appealed for recognition of soil science as a discipline...

the erosion rate exceeds soil formation, erosion destroys the soil. Lower rates of erosion can prevent the formation of soil features that take time to...

from the field by its evaporation from the plant itself. Water affects soil formation, structure, stability and erosion but is of primary concern with respect...

understand the influence of soil hydrology on soil formation. Catenas are found to be a great location for the study of soil science, given that the catena...

growing season and are nonleached. They include nearly 12% of soils on Earth. Soil formation is slow, and accumulated organic matter is scarce. They may...

plains were the basis from which the present day soil formed from. The parent material which these soils formed from varies greatly from one area to another...

Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other...

unweathered parent material. Solum and soils are not synonymous. Some soils include layers that are not affected by soil formation. These layers are not part of...

have inhabited the area. Soil fauna, ranging from microscopic protists to larger invertebrates, have a role in soil formation and nutrient cycling. Bacteria...

finer material. This situation contrasts fundamentally to terrestrial soil formation, mediated by the presence of molecular oxygen (O2), humidity, atmospheric...

such information. Soil surveys apply the principles of soil science and draw heavily from geomorphology, theories of soil formation, physical geography...

Swiss-born soil scientist and expert on pedology (the study of soil in its natural environment), particularly the processes of soil formation. He served...

to characteristics developed during soil formation. Criteria are designed to guide choices in land use and soil management. As indicated, this is a hierarchical...

(from Greek: πέδον (pédon), "soil") involves mixing between soil horizons and is an important factor in soil formation. Pedoturbation includes churning...

formation and stabilization of the pore structure, the spread and vitality of pathogens, and the biodiversity of this rich biological community. Soil...