@inproceedings{fdi:010011231,
  title = {{D}{\'e}termination pr{\'e}cise de la salinit{\'e} des sols par conductivim{\'e}trie {\'e}lectromagn{\'e}tique},
  author = {{J}ob, {J}ean-{O}livier and {G}onzalez {B}arrios, {J}.{L}. and {R}ivera {G}onzalez, {M}.},
  editor = {},
  language = {{FRE}},
  abstract = {{T}he electromagnetic conductivimeter ({EM}) is a tool to estimate soil salinity. {I}t has been first used for reconnaissance surveys and is now widespreading. {I}n our study, the {EM}38 (made by {GEONICS}) has an intercoil spacing of 1 m, allowing the measurement of soil salinity down to a depth of 2 meters. {C}alibration of instrument readings versus soil salinity has been done either by comparison with the four electrode probe response, or directly from the electric conductivity measurements of saturated paste extract. {H}owever, these calibrations are convenient for large surveys as long as soil porosity and soil water content are reasonnably constant, so that the calibration holds. {T}his is not the case in irrigated lands, where soil salinity distribution may be inverted or normal, without sharp boundary between soil horizons. {F}urthermore, soil moisture content is highly variable and its effect cannot be neglected in surveys. {I}n our paper we present the results of a simple calibration method which takes into account soil moisture and soil texture. {S}oil salinity is determinated with accuracy in the low range (1-5 d{S}/m) with one equation, and in the high range with another one (5-35 d{S}/m). {T}hese equations are applied for medium textured soils with an accuracy better than 20%. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{GEOPHYSIQUE} ; {ELECTROMAGNETISME} ; {CONDUCTIVITE} ; {SOL} ; {SALINITE}},
  numero = {},
  pages = {143--145 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:010011231},
}