1. General Model Information
Name: FLOw in CRacking soils
Main medium: terrestrial+
Main subject: hydrology, biogeochemistry
Organization level: ecosystem
Type of model: compartment model, partial differential equations (1D)
Keywords: soil, volume changes, vertical water transport, cracking clay soil, soil water content profiles, surface subsidence, crack volumes, preferential flow, drainage, 1D, richards equation, vertical cracks, bypass flow
Mr. K. Oostindie
DLO Winand Staring Centre (SC-DLO)
6700 AC Wageningen
Oostindie, K. and J.J.B. Bronswijk
6700 AC Wageningen
FLOCR simulates volume changes and vertical water transport in cracking clay soils. With the
water retention curve and the hydraulic conductivity curve of the soil matrix and appropriate boundary
conditions as input, soil water content profiles are computed, which are subsequently converted into surface
subsidence and crack volumes, using the shrinkage characteristics of the soil matrix and a shrinkage-geometry
factor. Preferential flow and rapid drainage via shrinkage cracks are computed as well.
Author of the abstract:
CAMASE Register of Agro-ecosystems Models
II. Technical Information
Operating System(s): VAX-VMS and PC/MS-DOS please contact Mr. K. Oostindie.
Programming Language(s): FORTRAN-77 please contact Mr. K. Oostindie.
III. Mathematical Information
Rate variables: Water content, hydraulic conductivity, pressure head, volume change of eachlayer, runoff bypass flow and evapotranspiration.
State variables: Shrinkage characteristics; tables for the water retention curves and hydraulicconductivity curves.
Profile description and boundary conditions, soil physical data and climatic data.
Profile description and boundary conditions, soil physical data and climatic data. Water balances for the profile subsidence, water content, pressure head for each soil layer.
Water balances for the profile subsidence, water content, pressure head for each soil layer.
Oostindie, K. & J.J.B. Bronswijk, 1992.
FLOCR - A simulation model for the calculation of water balance, cracking and surface subsidence of clay soils.
DLO-Winand Staring Centre Report no. 47. Wageningen, The Netherlands, 65 pp.
V. Further information in the World-Wide-Web
VI. Additional remarks
Last review of this document by: T. Gabele: 17. 9. 1997
Status of the document:
last modified by
Joachim Benz Mon Jul 2 18:31:37 CEST 2007