Adapting the CREAMS model for Finnish conditions

The CREAMS model, a management model for predicting field-scale runoff and erosion, has been modified and adapted for Finnish conditions: The most important changes are the implementation of a new snow accumulation and snow melt model, a simple soil frost model, the use of an adjustable albedo for evapotranspiration calculations, the implementation of a plant growth model for calculating leaf area index and soil loss ratio, and allowing for a variation in the rainfall erosivity parameters. The modified model has been compared to the original model and observed data from an experimental field in southwest ern Finland. In most cases the modified model predicted surface runoff and soil loss better than the original model. Although there remain discrepancies be tween model simulations and observations, the modified model seems to perform better and allows an easier comparison of management practices

[1]  L. Lane,et al.  Estimating sediment yield from rangeland with CREAMS a field-scale model for chemicals, runoff, and erosion from agricultural management systems , 1982 .

[2]  B. Wright.  The modeling approach. , 1984, International review of cytology.

[3]  W. G. Knisel,et al.  GLEAMS: Groundwater Loading Effects of Agricultural Management Systems , 1987 .

[4]  P. E. O'connell,et al.  River flow forecasting through conceptual models part III - The Ray catchment at Grendon Underwood , 1970 .

[5]  Francisco Lombardi Neto.  UNIVERSAL SOIL LOSS EQUATION (USLE), RUNOFF EROSIVITY FACTOR, SLOPE LENGTH EXPONENT, AND SLOPE STEEPNESS EXPONENT FOR INDIVIDUAL STORMS. , 1979 .

[6]  John R. Williams.  Sediment-yield prediction with Universal Equation using runoff energy factor , 1975 .

[7]  John R. Williams,et al.  A modeling approach to determining the relationship between erosion and soil productivity [EPIC, Erosion-Productivity Impact Calculator, mathematical models] , 1984 .

[8]  Maximilian Posch,et al.  Erosivity factor in the Universal Soil Loss Equation estimated from Finnish rainfall data , 1993 .

[9]  Joe T. Ritchie,et al.  Model for predicting evaporation from a row crop with incomplete cover , 1972 .

[10]  W. Knisel,et al.  European and United States Case Studies in Application of the CREAMS Model , 1982 .

[11]  W. H. Wischmeier,et al.  Rainfall energy and its relationship to soil loss , 1958 .

[12]  Modelling and forecasting snowmelt floods for operational forecasting in Finland , 1986 .

[13]  J. Nash,et al.  River flow forecasting through conceptual models part I — A discussion of principles☆ , 1970 .

[14]  Y. R. Ghebreiyessus,et al.  Crop Canopy Functions for Soil Erosion Prediction , 1987 .