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structure of the soil

См. также в других словарях:

  • Soil food web — The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Introduction Food webs describe the… …   Wikipedia

  • Operational Structure of the Italian Army — See also: Italian Army See also: List of active units of the Italian Army The following list gives an overview of the entire chain of command and organization of the Italian Army for the year 2009 and includes all units currently active.[1]… …   Wikipedia

  • soil organism — ▪ biology  any organism inhabiting the soil during part or all of its life. Soil organisms, which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms, play an… …   Universalium

  • soil conditioner — noun a chemical substance used to improve the structure of the soil and increase its porosity gypsum can be used as a soil conditioner • Hypernyms: ↑chemical, ↑chemical substance * * * noun : a chemical substance (as gypsum) used to improve the… …   Useful english dictionary

  • Soil structure — is determined by how individual soil granules clump or bind together and aggregate, and therefore, the arrangement of soil pores between them. Soil structure has a major influence on water and air movement, biological activity, root growth and… …   Wikipedia

  • Soil mechanics — is a discipline that applies principles of engineering mechanics, e.g. kinematics, dynamics, fluid mechanics, and mechanics of material, to predict the mechanical behavior of soils. Together with Rock mechanics, it is the basis for solving many… …   Wikipedia

  • Soil liquefaction — describes the behavior of loose saturated unconsolidated soils, i.e. loose sands, which go from a solid state to have the consistency of a heavy liquid, or reach a liquefied state as a consequence of increasing porewater pressures, and thus… …   Wikipedia

  • 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… …   Wikipedia

  • Soil horizon — Soil samples illustrating horizons (subsoil on right) A soil horizon is a specific layer in the land area that is parallel to the soil surface and possesses physical characteristics which differ from the layers above and beneath …   Wikipedia

  • Soil compaction — occurs when weight of livestock or heavy machinery compresses soil, causing it to lose pore space. Affected soils become less able to absorb rainfall, thus increasing runoff and erosion. Plants have difficulty in compacted soil because the… …   Wikipedia

  • Soil pH — is the pH of soil water. It is based on the measurement of pH, which depends on the activity of hydrogen ions (H+) in a solution.There are many different methods to collect soil water, all which influence the measured soil pH in one way or… …   Wikipedia

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