Steady Infiltration from a Surface Point Source into a Two-Layered Cylindrically Confined and Unconfined Soil Region with Root Water Extraction

2012 ◽  
Vol 11 (3) ◽  
pp. vzj2011.0189
Author(s):  
Gregory Communar ◽  
Shmulik P. Friedman
Keyword(s):  
Point Source ◽  
Water Extraction ◽  
Surface Point ◽  
Root Water Extraction

Bare soil evaporation near a surface point-source emitter

1986 ◽  
Vol 11 (3-4) ◽  
pp. 257-277 ◽  
Author(s):  
A.D. Matthias ◽  
R. Salehi ◽  
A.W. Warrick
Keyword(s):  
Point Source ◽  
Bare Soil ◽  
Soil Evaporation ◽  
Surface Point ◽  
Bare Soil Evaporation

Quantifying root water extraction by rangeland plants through soil water modeling

2010 ◽  
Vol 335 (1-2) ◽  
pp. 181-198 ◽  
Author(s):  
Xuejun Dong ◽  
Bob D. Patton ◽  
Anne C. Nyren ◽  
Paul E. Nyren ◽  
Lyle D. Prunty
Keyword(s):  
Soil Water ◽  
Water Extraction ◽  
Water Modeling ◽  
Root Water Extraction ◽  
Rangeland Plants

scholarly journals Sensor placement for soil water monitoring in lemon irrigated by micro sprinkler

2007 ◽  
Vol 11 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Eugênio F. Coelho ◽  
Delfran B. dos Santos ◽  
Carlos A. V. de Azevedo
Keyword(s):  
Water Potential ◽  
Water Content ◽  
Soil Water ◽  
Root Length ◽  
Sensor Placement ◽  
Soil Water Potential ◽  
Water Extraction ◽  
Soil Profiles ◽  
Water Sensor ◽  
Root Water Extraction

This research had as its objective the investigation of an alternative strategy for soil sensor placement to be used in citrus orchards irrigated by micro sprinkler. An experiment was carried out in a Tahiti lemon orchard under three irrigation intervals of 1, 2 and 3 days. Soil water potential, soil water content distribution and root water extraction were monitored by a time-domain-reflectometry (TDR) in several positions in soil profiles radial to the trees. Root length and root length density were determined from digital root images at the same positions in the soil profiles where water content was monitored. Results showed the importance of considering root water extraction in the definition of soil water sensor placement. The profile regions for soil water sensor placement should correspond to the intersection of the region containing at least 80% of total root length and the region of at least 80% of total water extraction. In case of tensiometers, the region of soil water potential above -80 kPa should be included in the intersection.

ON THE SIMULATION OF ROOT WATER EXTRACTION: EXAMINATION OF A MINIMUM ENERGY HYPOTHESIS

Soil Science ◽  
2000 ◽  
Vol 165 (3) ◽  
pp. 226-236 ◽  
Author(s):  
S. G. K. Adiku ◽  
C. W. Rose ◽  
R. D. Braddock ◽  
H. Ozier-Lafontaine
Keyword(s):  
Minimum Energy ◽  
Water Extraction ◽  
Root Water Extraction
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