1. General Model Information

Name: HYdraulic PRoperties of European Soils.

Acronym: HYPRES

Main medium: terrestrial
Main subject: hydrology, soil science
Organization level: Landscape
Type of model: not specified, static-algebraic equations
Main application: database, simulation/optimisation tool
Keywords: soils database, water holding capacity, europe, estimation, hydraulic properties, pedo-transfer-functions


Henk Wösten, SC.DLO,
Allan Lilly, MLURI,

email: J.H.M.WOSTEN@sc.dlo.nl.


Allan Lilly and many others


HYPRES Database:

The EU have funded a project in which a number of European Institutions are collaborating to develop the HYPRES database (HYdraulic PRoperties of European Soils). The distribution of the participating institutions is shown in the accompanying map. The project is co-ordinated by Dr Henk Wösten of the Winand Staring Centre, Wageningen and the project researcher is Dr Allan Lilly of the Macaulay Land Use Research Institute, Aberdeen. The project began in January 1995 and will end in December 1997. During the first two years a database of soil hydraulic properties and relevant soil attributes was compiled (see database structure). This database (HYPRES) has geo-reference and horizon has the unique identifiers of approximately 4900 soil horizons.


Application and Methods:

The primary use of the data within the current project is to derive class pedotransfer functions for topsoils and subsoils based on the five soil texture classes (plus organic soils) currently used to describe the soil units depicted on the 1: 1 000 000 Soil Map of Europe. Initially, the measured soil hydraulic data from each individual soil horizon will be parameterised using the Mualem-van Genuchten equations and grouped according to soil texture class. These equations will then be used to derive mean hydraulic properties for each texture class along with standard deviations (see hydraulic properties). The overall result will be a map showing the soil physical composition of Europe and a set of non-scale-specific pedotransfer functions.

Beyond the lifetime of the project the database will comprise the basic dataset of the European Soil Bureau 'Soil Hydraulic Parameters' working group. The co-workers within this group envisage much wider applications for this dataset within both applied and strategic research.

Source of the Abstract: HYPRES - Homepage

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

V. Further information in the World-Wide-Web

  • HYPRES -Homepage

    VI. Additional remarks

    Last review of this document by: T. Gabele: Dec 17 1997
    Status of the document:
    last modified by Tobias Gabele Wed Aug 21 21:44:45 CEST 2002

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