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RESISTANCE WATER TRANSFER [1 record]
Record 1 - internal organization data 2003-02-24
Record 1, English
Record 1, Subject field(s)
- Plant Biology
- Soil Science
- Drainage and Irrigation (Agric.)
Record 1, Main entry term, English
- resistance to water transfer
1, record 1, English, resistance%20to%20water%20transfer
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- résistance to liquid water transfer 2, record 1, English, r%C3%A9sistance%20to%20liquid%20water%20transfer
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The driving force for root uptake is the water potential difference between soil and plant. Water is transported from high potential to low. There are two principally different resistances to water transfer from the soil to the exchangeable pool in the plant. In the soil, the resistance depends on soil characteristics and soil water potential, while in the plant, biological factors regulate the resistance. The first resistance is called the soil-root resistance (rr) and the second is called the plant resistance (rp) and they are coupled in series, i.e. a water molecule has to path both resistances. 3, record 1, English, - resistance%20to%20water%20transfer
Record number: 1, Textual support number: 2 CONT
Access to water can be more difficult because the soil close to the roots tend to dry more quickly. The resistance to water transfer towards the roots gets stronger. But water uptake is essentially limited by the heterogeneous distribution of the roots in the soil. 4, record 1, English, - resistance%20to%20water%20transfer
Record 1, Key term(s)
- water transfer resistance
- liquid water transfer resistance
Record 1, French
Record 1, Domaine(s)
- Biologie végétale
- Science du sol
- Drainage et irrigation (Agriculture)
Record 1, Main entry term, French
- résistance au transfert d'eau liquide
1, record 1, French, r%C3%A9sistance%20au%20transfert%20d%27eau%20liquide
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
[...] la résistance au transfert d'eau liquide dans le sol ou le continuum sol-plante est le quotient de la différence de potentiel hydrique total [delta psi]T entre deux niveaux par le flux liquide [phi] : R = [delta psi]T/[phi]. 1, record 1, French, - r%C3%A9sistance%20au%20transfert%20d%27eau%20liquide
Record number: 1, Textual support number: 1 OBS
résistance : Paramètre qui figure dans les équations de transfert de gaz, de liquide ou de chaleur exprimant le flux en fonction d'une différence de concentration, de potentiel hydrique ou de température. 1, record 1, French, - r%C3%A9sistance%20au%20transfert%20d%27eau%20liquide
Record 1, Spanish
Record 1, Textual support, Spanish
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