Chapitre 10 : Preliminary grouping of soils
Résumé
Grouping soils appeared very early as a way to increase the reliability and applicability of PTFs. Indeed, as noticed by Hodnett and Tomasella (2002), it might be never possible to develop a very reliable “universal” PTF for all soils because the worldwide range of soil properties is so great. Grouping emerged as a strategy to stratify the resulting variability, thus enabling the development of closer PTFs between hydraulic properties and easily available basic soil properties.