net.simplace.sim.components.models.lintul5.modular.WaterStress

Lintul5 - Simple generic model for simulation of crop growth - WaterStress part

Introduction

This SimComponent calculates the transpiration reduction factor TRANRF.

If cIOPT is 0 or 1, TRANRF will always be 1.

Else it computes the ratio of the inputs ActualTranspiration and PotentialTranspiration during the growing period, triggered by the inputs DoSow and ended by DoHarvest. If PotentialTranspiration is 0, then the TRANRF is set to 0.

Outside the growing period, TRANRF is set to 1.

References

(L5) Joost Wolf, [http://models.pps.wur.nl/sites/models.pps.wur.nl/files/LINTUL5-report-vs1_0.zip User guide for LINTUL5], Wageningen UR, Wageningen, 2012

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cIOPT	indicates optimal (=1), water limited (=2), water and N limited (=3) and NPK limited (=4)	INT	1	1	4	4
input	iActualTranspiration	actual transpiration rate	DOUBLE	mm/d	-	-	0.0
input	iDoHarvest	harvesting	BOOLEAN	1	-	-	false
input	iDoSow	sowing	BOOLEAN	1	-	-	false
input	iPotentialTranspiration	Potential transpiration	DOUBLE	mm/d	-	-	0.0
out	TRANRF	reduction factor for crop growth due to drought/wetness	DOUBLE	1	0.0	1.0	1.0

See also: Irradiation, PotentialEvapoTranspiration, Phenology, RadiationUseEfficiency, Lintul5

public class WaterStress extends net.simplace.sim.model.FWSimComponent {
// Public Constructors
public WaterStress(String aName, HashMap aFieldMap, HashMap aInputMap,
Element aSimComponentElement, FWSimVarMap aVarMap, int aOrderNumber);
public WaterStress();

// Public Instance Methods

public HashMap createVariables(); // Defines
net.simplace.sim.model.FWSimComponent

Create the FWSimVariables as interface for this SimComponent

// Protected Instance Methods

protected void init(); // Defines net.simplace.sim.model.FWSimComponent

initializes the fields by getting input and output FWSimVariables from VarMap

protected void initValues();

protected void resetValues();

protected void process(); // Defines net.simplace.sim.model.FWSimComponent

process the algorithm and write the results back to VarMap

protected FWSimComponent clone(FWSimVarMap aVarMap);
// Defines net.simplace.sim.model.FWSimComponent

creates a clone from this SimComponent for use in other threads

}

Hierarchy: java.lang.Object - net.simplace.sim.model.FWSimComponent (net.simplace.sim.util.FWSimFieldContainer) - WaterStress