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Seasonal flooding and rice cultivation effects on the pore size distribution of a SiL soil
In this work we evaluated the effects of a) rice cultivation under flooding conditions and b) seasonal flooding (May-
October) without cultivation, on the pore size distribution of a SiL soil. Soil cores were collected from two different
depth intervals (0-15 cm and 15-30 cm). After two years under flooding conditions, textural porosity increased at the
expense of structural porosity. A percentage of drainage pores collapsed to storage pores; however, this time period
was inadequate to bring about changes in the microporosity of the SiL soil. In the depth interval 15-30 cm, the rice
root development reduced the effects of flooding on soil porosity.
Keywords: Flooding; porosity; rice
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