Specific surface of oxisols and its relationship with water retention

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The specific surface area of soil samples was estimated by the method of nitrogen adsorption at 78 K, and it was related to the water retention capacity, clay content, cation exchange capacity, and the amount of water retained on the exposed soil surface, in an approximation of superimposed layers....

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Autores principales: Ruiz, Hugo Alberto, Sarli, Guillermo Oliverio, Gonçalves Reynaud Schaefer, Carlos Ernesto, Filgueira, Roberto Raul, Silva de Souza, Fabiana
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2017
Materias:
adsorción de nitrógeno
potencial agua
BET-N2
espesor de capas de agua
nitrogen adsorption
water potential
water layer thickness
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3161
Aporte de:
Revista de la Facultad de Ciencias Agrarias UNCuyo de Universidad Nacional de Cuyo
id I11-R107article-3161
record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Español
format Artículo revista
topic adsorción de nitrógeno
potencial agua
BET-N2
espesor de capas de agua
nitrogen adsorption
water potential
BET-N2
water layer thickness
spellingShingle adsorción de nitrógeno
potencial agua
BET-N2
espesor de capas de agua
nitrogen adsorption
water potential
BET-N2
water layer thickness
Ruiz, Hugo Alberto
Sarli, Guillermo Oliverio
Gonçalves Reynaud Schaefer, Carlos Ernesto
Filgueira, Roberto Raul
Silva de Souza, Fabiana
Specific surface of oxisols and its relationship with water retention
topic_facet adsorción de nitrógeno
potencial agua
BET-N2
espesor de capas de agua
nitrogen adsorption
water potential
BET-N2
water layer thickness
author Ruiz, Hugo Alberto
Sarli, Guillermo Oliverio
Gonçalves Reynaud Schaefer, Carlos Ernesto
Filgueira, Roberto Raul
Silva de Souza, Fabiana
author_facet Ruiz, Hugo Alberto
Sarli, Guillermo Oliverio
Gonçalves Reynaud Schaefer, Carlos Ernesto
Filgueira, Roberto Raul
Silva de Souza, Fabiana
author_sort Ruiz, Hugo Alberto
title Specific surface of oxisols and its relationship with water retention
title_short Specific surface of oxisols and its relationship with water retention
title_full Specific surface of oxisols and its relationship with water retention
title_fullStr Specific surface of oxisols and its relationship with water retention
title_full_unstemmed Specific surface of oxisols and its relationship with water retention
title_sort specific surface of oxisols and its relationship with water retention
description The specific surface area of soil samples was estimated by the method of nitrogen adsorption at 78 K, and it was related to the water retention capacity, clay content, cation exchange capacity, and the amount of water retained on the exposed soil surface, in an approximation of superimposed layers. Twenty seven Oxisols were investigated. Soil moisture retention was studied at water potentials -33, -500, -1000 and -1500 kPa. The specific surface area was positively correlated to soil moisture and with clay content. No relationship was found between specific surface area and cation exchange capacity. Between specific surface area and soil organic content only a weak correlation was found. The specific surface area was related with soil moisture content by linear equations obtained by the regression method of data, for each water potential applied. The results showed that the specific surface area of these Oxisols can be reasonable estimated by water retention in a wide range of matrix potentials. Finally, from the obtained data on specific surface area and water retention it was possible to estimate the thickness of the water film covering the entire surface of the soil pores exposed to the air.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2017
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3161
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first_indexed 2022-06-20T13:52:49Z
last_indexed 2022-06-20T13:52:49Z
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