2 results

Pedotransfer functions to predict water retention for soils of the humid tropics: a review

Yves-Dady Botula, Eric Van Ranst, Wim M. Cornelis

01/Jun/2014

Over the past three decades, pedotransfer functions (PTFs) have been widely used by soil scientists to estimate soils properties in temperate regions in response to the lack of soil data for these regions. Several authors indicated that little effort has been dedicated to the prediction of soil properties in the humid tropics, where the need for soil property information is of even greater priority. The aim of this paper is to provide an up-to-date repository of past and recently published […]

Incorporation of the bulk density to two models adjusted to the soil water retention curve

C. A. Tormena, A. P. Silva

01/Jun/2002

The soil water retention curve plays a fundamental role in the development of studies on the dynamics of soil water, modeling of physical soil processes and plant growth. The retention curve is usually obtained by simultaneously measuring water content (θ) and soil water potential (ψ) in a single sample. An alternative procedure is to use several samples per ψ to describe the retention curve. The use of this procedure requires that the variation factors which exist among the samples are […]