TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
PRESSION SUCCION [2 records]
Record 1 - internal organization data 2003-04-30
Record 1, English
Record 1, Subject field(s)
- Soil Science
- Soil Mechanics (Engineering)
- Hydrology and Hydrography
Record 1, Main entry term, English
- soil suction
1, record 1, English, soil%20suction
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- soil water suction 2, record 1, English, soil%20water%20suction
- soil water tension 2, record 1, English, soil%20water%20tension
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Negative pore pressure created by capillary attraction in fine soils and in unsaturated soils. 3, record 1, English, - soil%20suction
Record number: 1, Textual support number: 1 CONT
Soil suction [means] water pressure within a soil which is less than atmospheric pressure. 4, record 1, English, - soil%20suction
Record number: 1, Textual support number: 1 OBS
Suction is directly related to pore size and, hence capillarity and may be measured by tensiometer, suction or pressure plate, pressure membrane apparatus or vapour absorption methods. 5, record 1, English, - soil%20suction
Record 1, Key term(s)
- soil succion
Record 1, French
Record 1, Domaine(s)
- Science du sol
- Mécanique des sols
- Hydrologie et hydrographie
Record 1, Main entry term, French
- tension
1, record 1, French, tension
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- succion 2, record 1, French, succion
correct, feminine noun
- succion du sol 3, record 1, French, succion%20du%20sol
correct, feminine noun
- succion capillaire 4, record 1, French, succion%20capillaire
correct, feminine noun
- succion capillaire du sol 5, record 1, French, succion%20capillaire%20du%20sol
correct, feminine noun
- tension d'humidité 1, record 1, French, tension%20d%27humidit%C3%A9
feminine noun
- pression capillaire 1, record 1, French, pression%20capillaire
see observation, feminine noun
- tension capillaire 1, record 1, French, tension%20capillaire
see observation, feminine noun
- pression de succion 1, record 1, French, pression%20de%20succion
see observation, feminine noun
- déficit de pression 1, record 1, French, d%C3%A9ficit%20de%20pression
see observation, masculine noun
- potentiel capillaire 1, record 1, French, potentiel%20capillaire
avoid, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Pression négative par rapport à la pression atmosphérique, à laquelle est soumise l'eau retenue dans un milieu poreux non saturé (et dans la frange capillaire) sous l'effet des forces capillaires. 1, record 1, French, - tension
Record number: 1, Textual support number: 1 CONT
Les racines extraient l'eau du sol par succion osmotique, causée par les sels dissous dans leurs tissus. Le sol, quant à lui, retient l'eau par succion capillaire. Cette succion est d'autant plus forte que le sol est plus sec. Il y a donc compétition entre le sol et les racines pour aspirer l'eau. [...] Les sols à texture fine (argiles, limons) ont des interstices plus petits et un rapport surface/volume des particules plus élevé que les sols à texture plus grossière (sables). Ils exercent donc sur l'eau une plus grande succion capillaire. 6, record 1, French, - tension
Record number: 1, Textual support number: 2 CONT
Succion. Le terme succion du sol est utilisé pour désigner un déficit de pression (inférieur à la pression atmosphérique), une pression négative de l'eau des pores (Silvai, 1966). Par opposition aux pressions positives des pores, la succion du sol peut varier dans un très large éventail : la pression de l'eau des pores oscille, généralement en mécanique des sols, entre 0 à 500 kPa, et la succion du sol varie de 0 et 100 MPa. 3, record 1, French, - tension
Record number: 1, Textual support number: 1 OBS
pression capillaire; tension capillaire; pression de succion; déficit de pression : Les auteurs du «Dictionnaire français d'hydrogéologie» ne recommandent pas l'usage de ces termes qui sont jugés inutiles, impropres ou ambigus (pluralité de sens). Leur emploi est particulièrement déconseillé. 7, record 1, French, - tension
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2002-11-07
Record 2, English
Record 2, Subject field(s)
- Biochemistry
- Plant Biology
Record 2, Main entry term, English
- suction pressure
1, record 2, English, suction%20pressure
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
A schematic diagram of the two vascular systems, xylem and phloem, in higher plants, showing the transport of water (red) and sucrose (green). Water and salts enter the xylem through the roots. Water is lost by evaporation, mainly through the leaves, creating a suction pressure that draws the water and dissolved salts upward through the xylem. The phloem is used to conduct dissolved sucrose, produced in the leaves, to other parts of the plant. 2, record 2, English, - suction%20pressure
Record number: 2, Textual support number: 2 CONT
suction pressure. Leaves suck water out of xylem vessels to replace water lost by transpiration. It is caused by osmosis. 3, record 2, English, - suction%20pressure
Record 2, French
Record 2, Domaine(s)
- Biochimie
- Biologie végétale
Record 2, Main entry term, French
- pression de succion
1, record 2, French, pression%20de%20succion
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Dans une cellule vivante, somme algébrique de la pression osmotique du suc cellulaire, qui, négative, tend à faire pénétrer l'eau des milieux extérieurs hypotoniques dans la cellule, et de la pression mécanique positive exercée en sens inverse par la membrane et qui tend à chasser l'eau de la cellule. 1, record 2, French, - pression%20de%20succion
Record number: 2, Textual support number: 1 CONT
La pression de succion devrait être nommée potentiel hydrique des tissus végétaux. Dans les tissus végétaux, la pression de succion varie généralement, du moins en climat tempéré, de zéro à environ moins deux mégapascals (-20 bars). Cette variation dépend des déséquilibres temporaires entre l'absorption des racines et la transpiration foliaire. Les fortes valeurs de cette pression entraînent la régulation stomatique. 1, record 2, French, - pression%20de%20succion
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Bioquímica
- Biología vegetal
Record 2, Main entry term, Spanish
- presión de succión
1, record 2, Spanish, presi%C3%B3n%20de%20succi%C3%B3n
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
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