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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 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
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
Australian Soil Classification — The Australian Soil Classification is the system used to describe and group soils in Australia. The system comprises a number of related documents produced by the Australian Collaborative Land Evaluation Program, a division of the CSIRO, and is… … Wikipedia
Canadian system of soil classification — The Canadian system of soil classification is more closely related to the American system than any other. They differ in several ways. The Canadian system is designed to cover only Canadian soils. The Canadian system dispenses with a sub order… … Wikipedia
Cecil (soil) — with the [http://maps.google.com/maps?f=q hl=en geocode= q=http:%2F%2Fsoil science.info%2Fmaps%2FTypic Soil Pedons.kml ie=UTF8 t=h om=1 ll=36.045456, 78.490705 spn=0.029251,0.061669 z=15 typic Cecil pedon] actually located in Franklin County, NC … Wikipedia
Plainfield (soil) — Plainfield soil series is the name given to a sandy soil which has developed on coarse textured drift. It is an excessively drained entisol which typically has a brown profile with weak horizon development. This is an extensive soil, covering… … Wikipedia
U.S. Soil Taxonomy — ▪ Table U.S. Soil Taxonomy soil order defining characteristics name derivation percent of Earth s land area* Alfisol moderate leaching; B horizon enriched in clay; humid forest vegetation Pedalfer (C.F. Marbut) 9.77 Andisol… … Universalium
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
2005 levee failures in Greater New Orleans — Hurricane Katrina 2005 Atlantic hu … Wikipedia
IVANOV — RUSSIA (see also List of Individuals) 3.1.1926/RU 15.3.1991 Moscow/RU Petr Leontevich Ivanov graduated in 1948 from the Leningrad Polytechnic Institute LPI. In 1968 he founded the Department of Underground Structures of LPI, USSR s first research … Hydraulicians in Europe 1800-2000
