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standard soil

См. также в других словарях:

  • Soil conservation — is set of management strategies for prevention of soil being eroded from the earth’s surface or becoming chemically altered by overuse, salinization, acidification, or other chemical soil contamination. The principal approaches these strategies… …   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 health — is an assessment of ability of a soil to meet its range of ecosystem functions as appropriate to its environment. Aspects of soil health The term soil health is used to assess the ability of a soil to: *Sustain plant and animal productivity and… …   Wikipedia

  • Soil solarization — is an environmentally friendly method of using solar power for controlling disease agents in the soil by mulching the soil, usually with a transparent polyethylene cover.It may also describe methods of decontaminating soil using sunlight or solar …   Wikipedia

  • Standard penetration test — The standard penetration test (SPT) is an in situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. The test procedure is described in the British Standard BS 1377 9:1990 and ASTM D1586.… …   Wikipedia

  • Soil thermal properties — The thermal properties of soil are a component of soil physics that has found important uses in engineering, climatology and agriculture. These properties influence how energy is partitioned in the soil profile. While related to soil temperature …   Wikipedia

  • Soil structure interaction — Most of the civil engineering structures involve some type of structural element with direct contact with ground. When the external forces, such as earthquakes, act on these systems, neither the structural displacements nor the ground… …   Wikipedia

  • Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …   Wikipedia

  • Standard of living in the People's Republic of China — Before 1949 the Chinese economy was characterized by widespread poverty, extreme income inequalities, and endemic insecurity of livelihood. Though it has been argued that in the Ming Qing Period the standards of living reached and stayed at a… …   Wikipedia

  • Universal Soil Loss Equation — Models of soil erosion play critical roles in soil and water resource conservation and nonpoint source pollution assessments, including: sediment load assessment and inventory, conservation planning and design for sediment control, and for the… …   Wikipedia

  • AASHTO Soil Classification System — The AASHTO Soil Classification System was developed by the American Association of State Highway and Transportation Officials, and is used as a guide for the classification of soils and soil aggregate mixtures for highway construction purposes.… …   Wikipedia

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