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2 days ago · Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil. Soil measuring and surveying device
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2 days ago · Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In practice, this means that permafrost occurs at a mean annual temperature of −2 °C (28.4 °F) or below. In the coldest regions, the depth of continuous permafrost can exceed 1,400 m (4,600 ft). [22]
2 days ago · Irrigation helps to grow crops, maintain landscapes, and revegetate disturbed soils in dry areas and during times of below-average rainfall. In addition to these uses, irrigation is also employed to protect crops from frost, suppress weed growth in grain fields, and prevent soil consolidation.
May 25, 2024 · fertilizer, natural or artificial substance containing the chemical elements that improve growth and productiveness of plants. Fertilizers enhance the natural fertility of the soil or replace chemical elements taken from the soil by previous crops.
3 days ago · landslide, the movement downslope of a mass of rock, debris, earth, or soil (soil being a mixture of earth and debris). Landslides occur when gravitational and other types of shear stresses within a slope exceed the shear strength (resistance to shearing) of the materials that form the slope.
May 27, 2024 · 土塊 (soil clod) はペッドのように形成されたものではなく、耕起のような土壌への機械的な撹乱によってできたものである。 土壌構造は通気性、水移動、熱移動、植物の根の成長、土壌侵食への耐久性に影響を及ぼす [46] 。
May 10, 2024 · Soil testing for building construction is one part of the feasibility analysis, but it’s usually reported in its own document. The goal behind soil analysis is to determine whether or not the earth below the planned building can support the structure.
