@inproceedings{fdi:010060188,
  title = {{E}valuation of the sap flow measurements determined with heat balance method for citrus orchards in semi-arid region},
  author = {{E}r-{R}aki, {S}. and {K}habba, {S}. and {E}rraji, {T}. and {E}zzahar, {J}. and {J}arlan, {L}ionel and {L}e {P}age, {M}. and {C}hehbouni, {A}bdelghani and {H}anich, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ap flow measurements based on heat balance method gives a direct measurement of the mass flow rate of sap in the stem. {H}owever, extrapolation of these measurements from the stem to the field scale is an important challenge. {I}n this study, 15 branches of citrus trees with different diameters were equipped with {D}ynamax sap flow gauge. {T}hese individual branch measurements have been after extrapolated to the canopy transpiration by using two up-scaling methods. {T}he first one uses the relationship between sap flow and branches diameter and the second one uses the distribution of the branch diameter in the orchards. {T}he results showed a good agreement between the two methods estimates ({R}2=0.95). {A} comparison between scaled-up transpiration from sap flow and measured evapotranspiration ({ET}ed) by eddy covariance showed an average daily difference of about 0.87 mm/day which represents 25% of {ET}ed. {T}his substantial amount of water was lost through soil evaporation and part of it could be saved by improving the drip irrigation management.},
  keywords = {{EVAPOTRANSPIRATION} ; {CULTURE} {IRRIGUEE} ; {IRRIGATION} ; {VERGER} ; {METHODE} {D}'{ANALYSE} ; {ETUDE} {COMPARATIVE} ; {FLUX} {DE} {SEVE} ; {CHALEUR} ; {BRANCHE} ; {MAROC} ; {ZONE} {SEMIARIDE}},
  numero = {951},
  pages = {259--267},
  booktitle = {{P}roceedings of the {VIII}th international workshop on sap flow},
  year = {2012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060188},
}