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HORIZONS SUPERFICIELS [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-06-19

English

Subject field(s)
  • Soil Science
  • Soil Mechanics (Engineering)
  • Geology
DEF

The upper part of a natural soil that is generally dark coloured and has a higher content of organic matter and nutrients when compared to the (mineral) horizons below excluding the humus layer.

OBS

For arable land, "topsoil" refers to the ploughed soil depth; for grassland, it is the soil layer with high root content.

OBS

topsoil: term and definition standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Science du sol
  • Mécanique des sols
  • Géologie
DEF

horizon(s) superficiel(s) : Partie supérieure d'un sol naturel, généralement de couleur foncée et contenant plus de matières organiques et de nutriments que les horizons sous-jacents, en excluant les couches d'humus.

OBS

Pour les sols cultivés, l'horizon superficiel correspond à la profondeur de sol labouré; pour les prairies, il s'agit de la couche de sol contenant une quantité importante de racines.

OBS

horizon superficiel : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).

Key term(s)
  • horizons superficiels

Spanish

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