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vol.7 número2CORRELACIÓN ENTRE WORLD REFERENCE BASE Y SOIL TAXONOMY PARA LOS SUELOS DE LA VII REGIÓN DEL MAULE DE CHILE índice de autoresíndice de materiabúsqueda de artículos
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Revista de la ciencia del suelo y nutrición vegetal

versión On-line ISSN 0718-2791

Resumen

DORNER, José  y  DEC, Dorota. Air permeability and saturated hydraulic conductivity as a tool for the functional characterization of soil pores. R.C. Suelo Nutr. Veg. [online]. 2007, vol.7, n.2, pp.1-13. ISSN 0718-2791.  http://dx.doi.org/10.4067/S0718-27912007000200001.

In order to describe the pore functions of ploughed soils, undisturbed soil samples were collected at two depths and orientations (vertical and horizontal) in structured soils in the Weichselian moraine region in Northern Germany. The water retention curve, air permeability (ka) and saturated hydraulic conductivity (kf) were measured. The pore-size distribution, air-filled porosities and pore continuity indices were calculated. The tillage affects the soil quantitatively and qualitatively. The tillage-induced ploughed pan not only implies a reduction of the pore volume but also causes a direction-dependent behaviour of hydraulic properties through the development of a platy structure. In order to assess these qualitative changes, measurements like ka and/or kf are a good tool to describe the physical quality of a soil

Palabras clave : Air permeability; soil porosity; pore continuity.

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