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| Registros recuperados: 84 | |
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| Albouy, Yves; Bellier, Gérard; Job, Jean-Olivier; Montoroi, Jean-Pierre; Arfaoui, M.; Gaaloul, N.; Gasmi, M.; Guiguen, Noël; Khalifa, F.; Lamy, V.; Larvy Delarivière, Jean (collab.); Millot, Ginette (collab.). |
| Tipo: Text |
Palavras-chave: BASSIN VERSANT; FORMATION SUPERFICIELLE; METHODE D'ANALYSE; CONDUCTIVITE; RESISTIVITE; DONNEES DE TERRAIN; MESURE AU LABORATOIRE; MINERALOGIE. |
| Ano: 1995 |
URL: http://www.documentation.ird.fr/hor/fdi:43504 |
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| Job, Jean-Olivier; Gonzalez Barrios, J.L.; Rivera Gonzalez, M.. |
| The electromagnetic conductivimeter (EM) is a tool to estimate soil salinity. It has been first used for reconnaissance surveys and is now widespreading. In our study, the EM38 (made by GEONICS) has an intercoil spacing of 1 m, allowing the measurement of soil salinity down to a depth of 2 meters. Calibration 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. However, these calibrations are convenient for large surveys as long as soil porosity and soil water content are reasonnably constant, so that the calibration holds. This is not the case in irrigated lands, where soil salinity distribution may be... |
| Tipo: Text |
Palavras-chave: GEOPHYSIQUE; ELECTROMAGNETISME; CONDUCTIVITE; SOL; SALINITE. |
| Ano: 1997 |
URL: http://www.documentation.ird.fr/hor/fdi:010011231 |
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| Registros recuperados: 84 | |
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