Claim · model-written summary
A discontinuous RWU function significantly improved simulation accuracy.
- Taxon
- soybean
Glycine maxe1 - Treatment
- discontinuous RWU functione0
- Outcome
- accuracy of the simulations in θ v and RWUe0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accuracy of the simulations in θ v and RWU increased significantly using the nonlinear parameter estimation method and a discontinuous RWU function.”
t0“Root Water Uptake Simulation”
e1“The model calibration and validation were carried out using the data for soybean [ Glycine max (L.) Merr.] grown in large soil columns.”
Title
Assessment of Functions and Parameter Estimation Methods in Root Water Uptake Simulation
V. Rasiah; G. C. Carlson; R. A. Kohl Soil Science Society of America Journal 1992. doi:10.2136/sssaj1992.03615995005600040043x
Other claims from this paper (7)
- Method / resource Root water uptake parameter estimates varied by estimation method and function type.
- Method / resource Simulated soil water content and root water uptake distribution varied with parameter estimates.
- Method / resource Nonlinear estimation gave soil-water simulations closer to measured values than linear estimation.
- Method / resource Discontinuous functions similarly improved agreement relative to continuous functions.
- Method / resource Residual sums of squares differed significantly between linear and nonlinear methods.
- Method / resource Residual sums of squares differed significantly between continuous and discontinuous functions.
- Method / resource Nonlinear parameter estimation significantly improved soil-water and RWU simulation accuracy.