@article{fdi:010086897,
  title = {{D}ocumenting evapotranspiration and surface energy fluxes over rainfed annual crops within a {M}editerranean hilly agrosystem},
  author = {{Z}itouna-{C}hebbi, {R}. and {J}acob, {F}r{\'e}d{\'e}ric and {P}revot, {L}. and {V}oltz, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he current study aims to document evapotranspiration and associated surface energy fluxes for rainfed annual crops within a {M}editerranean hilly agrosystem, in order to provide information on crop water use under such little-studied conditions. {F}or this, an experimental study is conducted within the {T}unisian study site of the {OMERE} observatory ({F}rench acronym for the {M}editerranean {O}bservatory of {W}ater and the {R}ural {E}nvironment), located in the north-eastern {C}ap {B}on peninsula. {I}t relies on eddy covariance ({EC}) measurements at the plot scale. {W}e report that (1) observations are consistent with previous studies under {M}editerranean or semi-arid contexts, with time series of energy fluxes that depict classical seasonal dynamics, (2) common flux ratios (i.e., {B}owen {R}atio, ratio of actual to reference evapotranspiration) may change according to upwinds and downwinds, which requires further investigations about possible changes in aerodynamic conditions, and (3) a reference evapo-transpiration value of 4 mm day(-1) seems to be a threshold beyond which actual evapotranspiration decreases systematically and rapidly. {I}n terms of agricultural water management, the current study suggests to look for early sowing species/varieties, in order to reduce the evaporation-based water loss in autumn. {O}verall, {EC} measurements seem promising over rainfed annual crops within semiarid hilly agrosystems, for long term ob-servations, environmental modelling and operational purposes. {S}ince the current study is conducted over few small fields within a specific hilly topography, the original results we report here need to be strengthened with complementary studies.},
  keywords = {{R}ainfed annual crops ; {M}editerranean hilly agrosystems ; {E}vapotranspiration ; {E}ddy covariance times series ; {U}pwinds/downwinds ; {S}easonal dynamics ; {TUNISIE} ; {ZONE} {MEDITERRANEENNE} ; {CAP} {BON}},
  booktitle = {},
  journal = {{A}gricultural {W}ater {M}anagement},
  volume = {277},
  numero = {},
  pages = {108117 [14 p.]},
  ISSN = {0378-3774},
  year = {2023},
  DOI = {10.1016/j.agwat.2022.108117},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086897},
}