@inproceedings{fdi:010011233,
  title = {{D}{\'e}termination de la relation r{\'e}sistivit{\'e} {\'e}lectrique - teneur en eau au laboratoire : application aux sols de {T}unisie centrale},
  author = {{M}ontoroi, {J}ean-{P}ierre and {B}ellier, {G}{\'e}rard and {L}arvy {D}elarivi{\`e}re, {J}ean},
  editor = {},
  language = {{FRE}},
  abstract = {{A} laboratory experiment is carried out in order to determine the relationship electrical conductivity ({R}) versus water content ({H}p) for 13 soils sampled in a central {T}unisia watershed. {A}s water content increases, electrical resistivity decreases following an exponential law {R} = a(e(exp b/{H}p)). {T}he a regression parameter is correlated with the particle size distribution allowing to classify the soil samples. {T}his parameter decreases with clay and silt content and increases with sand content. {D}uring a field survey, soils are at different water contents and this variability must be taking in account. {W}hen the relationship {R} versus {H}p is known, we calculate the {R}0,2 value which is the electrical resistivity at a reference water content proposed as 0,20 g/g. {I}f the relationship is unknown, we can measure at two given periods two couples ({R}, {H}p), determine a, b parameters considering an arbitrary exponential law and then obtain the {R}0,2 value. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{SOL} ; {SALINITE} ; {MESURE} {AU} {LABORATOIRE} ; {RESISTIVITE} ; {HUMIDITE} {DU} {SOL} ; {TUNISIE} {CENTRE}},
  numero = {},
  pages = {153--159 multigr.},
  booktitle = {{G}{\'e}ophysique des sols et des formations superficielles : abstracts et r{\'e}sum{\'e}s {\'e}tendus},
  year = {1997},
  URL = {https://www.documentation.ird.fr/hor/fdi:010011233},
}