Location of Repository

Study of the water retention properties of a tropical soil

By Miriam Goncalves MIGUEL and Orencio Monje VILAR

Abstract

Some peculiarities of water retention in a tropical lateritic soil of clayey nature are presented and discussed. The typical soil microstructure is shown through thin-layer plates emphasizing soil microaggregation and pore distribution and their repercussion on the soil-water retention curve and on hysteresis. It is shown that the clayey soil has a behavior that to a large extent resembles sandy soil, which is characterized by the relatively high saturated hydraulic conductivity, low air-entry value, and small suction range at which water drainage takes place. The severe weathering processes that originated this soil have produced an altered soil that seems to be homogeneous in terms of physical indices, hydraulic conductivity, and soil-water retention characteristics, up to 4.5 m in depth

Topics: soil-water retention curve (SWRC), tropical soil, microstructure, UNSATURATED SOILS, SHEAR-STRENGTH, SUCTION, MODEL, Engineering, Geological, Geosciences, Multidisciplinary
Publisher: NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS
Year: 2013
OAI identifier: oai:agregador.ibict.br.RI_UNICAMP:oai:unicamp.sibi.usp.br:SBURI/396
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.rcaap.pt/detail.jsp... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.