S. Ferrarisfand & C.G. allot
The mathematical modeling of plant root uptake in soils is an open issue
due, on the one hand, to the complexity of representing roots as mathemat-
ical entities, and, on the other hand, to the degree of uncertainty connected
to their distribution.
Furthermore, a pointwise spatial and temporal knowl-
edge of root uptake is not available, thus a modelization of root flow as a
separate system is not expected to furnish reliable results.
Roots' effects are
accounted for in unsaturated flow models as source/sink terms for which a
spatial multivariate distribution is here assumed.
Within this context, we present the results obtained by three-dimensional
simulations of root uptake in a heterogeneous sandy soil.
The results are
compared with three-dimensional field measurements in order t...
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Paper DOI: 10.2495/CMWR980411
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