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rhizosphere [1 record]

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Alphabetical list of terms

Record 1 2011-09-14

English

Subject field(s)
  • Soil Science
  • Plant Biology
  • Silviculture
DEF

The soil immediately surrounding the root system of a plant.

CONT

The soil-plant system is one of the most important components in agricultural and natural ecosystems. Nutrient dynamics in soil-plant systems not only reflect the pattern of nutrient flow but also influence food production and quality, and the contaminant pathways in agricultural and natural ecosystems. In soil-plant systems, interaction between nutrients occur when the supply of one nutrient affects the movement, absorption, or utilization of an nutrient within the soil, soil-root interface (rhizosphere), or plant. There are several mechanisms of nutrient interaction in soil-plany systems.

OBS

The zone of rooting medium in which the environment for microbial activity in general is influenced by any root growing in it, distinguishing it from the "bulk" or "non-rhizosphere" soil, which is influenced by growing roots only by the withdrawal of water and nutrients.

Key term(s)
  • soil root interface

French

Domaine(s)
  • Science du sol
  • Biologie végétale
  • Sylviculture
DEF

Partie du sol pénétrée par les racines des plantes, très riche en micro-organismes et en substances biologiques.

CONT

L'horizon du sol dans lequel se développent les racines des plantes est la zone racinaire.

CONT

Étude structurale et fonctionnelle de la rhizosphère : description du système racinaire et de l'interface sol-racine, mécanismes physicochimiques et biophysiques impliqués, interactions microorganismes-racines.

OBS

La rhizosphère de chaque espèce végétale a une flore spécifique (bactéries, champignons).

Key term(s)
  • interface sol racine

Spanish

Campo(s) temático(s)
  • Ciencia del suelo
  • Biología vegetal
  • Silvicultura
DEF

Parte del suelo ocupada por raíces.

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