EnvThes
type: ConceptScheme

غرين
type: Concept
broader: soil
definition: [ ENM ][ ECSO ] Silt is granular material of a size somewhere between sand and clay whose mineral origin is quartz and feldspar. Wikipedia: In the Udden-Wentworth scale (due to Krumbein), silt particles range between 0.0039 to 0.0625 mm, larger than clay but smaller than sand particles. ISO 14688 grades silts between 0.002 mm and 0.063 mm. In actuality, silt is chemically distinct from clay, and unlike clay, grains of silt are approximately the same size in all dimensions; furthermore, their size ranges overlap. Clays are formed from thin plate-shaped particles held together by electrostatic forces, so present a cohesion. According to the U.S. Department of Agriculture Soil Texture Classification system, the sand-silt distinction is made at the 0.05 mm particle size. The USDA system has been adopted by the Food and Agriculture Organization (FAO). In the Unified Soil Classification System (USCS) and the AASHTO Soil Classification system, the sand-silt distinction is made at the 0.075 mm particle size (i.e., material passing the #200 sieve). Silts and clays are distinguished mechanically by their plasticity.
in scheme: EnvThes
preferred label: Тиня, утайка, нанос @bg
preferred label: tolm (pedol), möll (geol), aleuriit @et
preferred label: slib @nl
preferred label: siltti, muta, pohjalieju @fi
preferred label: silt
preferred label: sedimentos finos @pt
preferred label: (φυσική) ιλύς @el
preferred label: Schlick @de
preferred label: dumblas; sąnašos @lt
preferred label: iszaptalaj @hu
preferred label: limo @it
preferred label: limon @fr
preferred label: légamo @es
preferred label: mjäla @sv
preferred label: mulj @hr
preferred label: muł @pl
preferred label: naplavenina @cs
preferred label: nogulumi; sanesas @lv
preferred label: sedimente fine @ro

soil
type: Concept
narrower: غرين
preferred label: تربة @ar
preferred label: Почва @bg
preferred label: έδαφος @el
preferred label: tlo @hr
preferred label: tla, prst, zemlja @sl
preferred label: talaj @hu
preferred label: suolo @it
preferred label: suelos @es
preferred label: solos @pt
preferred label: sol @ro
preferred label: maaperä @fi
preferred label: Boden @de
preferred label: augsne @lv
preferred label: bodem @nl
preferred label: dirvožemis, gruntas @lt
preferred label: gleba @pl
preferred label: jord @da
preferred label: jordsmonn @no
preferred label: muld @et
preferred label: pôda @sk
preferred label: půda @cs