ISSN:
1365-2389
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Results from a previous study, in which two different forms of sulphur fertilizer were applied to a grazed pasture, were re-examined to show that the movement of sulphate to subsurface drains over three consecutive drainage seasons could be satisfactorily predicted using a simplified analytical form of the transfer function model (TFM). Two simple parametric forms: the exponential Burns and lognormal functions, were used for the probability density function for solute travel, and more realistic assumptions about the biologically mediated source-sink terms were incorporated. Sensitivity analysis showed that the model's prediction was very sensitive to the retardation coefficient for sulphate relative to the non-adsorbed solute chloride and the volume of soil water that is effective in solute transport. The procedures can be easily adapted for management purposes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2389.1996.tb01369.x
