humic horizon

См. также в других словарях:

• B-horizon — noun immediately below the A horizon; contains deposits of organic matter leached from surface soils • Syn: ↑B horizon • Instance Hypernyms: ↑soil horizon * * * ˈbē ̷ ̷| ̷ ̷ ̷ ̷ noun Usage: usually capitalized B : the soil layer immediately… …   Useful english dictionary

• podzolic soil — ▪ pedology podzolic also spelled  Podsolic,  also called  Lessivé Soil,         soil usually forming in a broadleaf forest and characterized by moderate leaching, which produces an accumulation of clay and, to some degree, iron that have been… …   Universalium

• soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …   Universalium

• 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

• Podzol — Podsol, Spodosol a stagnopodzol in upland Wales Used in: WRB, USDA soil taxonomy, others …   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

• Mazatlán — For the dredger laid down as SS Mazatlan, see SS Tuxpam. Mazatlán …   Wikipedia

• Podsol — In soil science, Podsol (also spelled Podzol, or known as Spodosol) are the typical soils of coniferous, or Boreal forests. They are also the typical soils of eucalypt forests and heathlands in southern Australia. The name is Russian for under… …   Wikipedia

• Fuel cell — For other uses, see Fuel cell (disambiguation). Demonstration model of a direct methanol fuel cell. The actual fuel cell stack is the layered cube shape in the center of the image A fuel cell is a device that converts the chemical energy from a… …   Wikipedia

• Humus — (Origin: 1790–1800; < Latin : earth, ground [ humus. Dictionary.com Unabridged (v 1.1). Random House, Inc. 23 Sep. 2008. .] ) is the organic material in soil lending it a dark brown or black colouration. In soil science, humus refers to any… …   Wikipedia

• Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …   Universalium