Package net.simplace.sim.components.experimental.lintulcc

Class PlantSystemConductance

java.lang.Object

net.simplace.sim.model.FWSimComponent

net.simplace.sim.components.experimental.lintulcc.PlantSystemConductance

All Implemented Interfaces:

net.simplace.sim.util.FWSimFieldContainer

public class PlantSystemConductance
extends net.simplace.sim.model.FWSimComponent

Calculates root system and plant hydraulic conductances.

This SimComponet calculates the root system hydraulic conductance (Krs) and plant hydraulic conductance (Kplant) of a certain crop plant based on total root length per unit of soil area. The Kplant is used in the Couvreur RWU model and the coupled root-shoot model (see HillFlow1DLintulCCDiurnalPsiLeaf). In addition to Kplant, the Couvreur model also requires the compensatory hydraulic conductance (Kcomp) to estimate the compensatory root water uptake. The detailed calculation of root system hydraulic conductance and plant hydraulic conductance could be found in Chapter 3 of the LintulCC and Extensions documentation (pdf).

References

Cai, G., Vanderborght, J., Couvreur, V., Mboh, C. M., and Vereecken, H.: Parameterization of Root Water Uptake Models Considering Dynamic Root Distributions and Water Uptake Compensation, Vadose Zone J., 17, 1–21, https://doi.org/10.2136/vzj2016.12.0125, 2017.

Cai, G., Vanderborght, J., Langensiepen, M., Schnepf, A., Hüging, H., and Vereecken, H.: Root growth, water uptake, and sap flow of winter wheat in response to different soil water conditions, Hydrol. Earth Syst. Sci., 22, 2449–2470, https://doi.org/10.5194/hess-22-2449-2018, 2018. 

Nguyen, T. H., Langensiepen, M., Vanderborght, J., Hüging, H., Mboh, C. M., and Ewert, F.: Comparison of root water uptake models in simulating CO2 and H2O fluxes and growth of wheat, Hydrol. Earth Syst. Sci., 24, 4943–4969, https://doi.org/10.5194/hess-24-4943-2020, 2020.

Author:

Gunther Krauss, Thuy Nguyen

See Also:

• HillFlow1DLintulCCDiurnal

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cCompensatoryConductanceFactor	Scaling factor for compensatory root water uptake conductance from root system conductance	DOUBLE	1	-	-	0.25
constant	cLayerDepth	Depth of soil layer i th	DOUBLEARRAY	m	-	-	-
constant	cRootsystemConductanceInitial	Inital value of root system conductivity (K_rs inital) at emergency	DOUBLE	d-1	-	-	1.2E-5
constant	cTotalRLDInitial	Inital value of total root length density at emergency	DOUBLE	cm/cm3	-	-	0.01
input	iRootLengthDensityPerLayer	Root leng density per soil layer	DOUBLEARRAY	cm/cm3	-	-	-
out	CompensatoryConductance	Compensatory root water uptake conductivity (K_comp)	DOUBLE	d-1	-	-	-
out	RootsystemConductance	Root system conductivity (K_rs)	DOUBLE	d-1	-	-	-

Nested Class Summary

Nested classes/interfaces inherited from class net.simplace.sim.model.FWSimComponent

net.simplace.sim.model.FWSimComponent.TEST_STATE

Field Summary

Fields inherited from class net.simplace.sim.model.FWSimComponent

iFieldMap, iFrequence, iInputMap, iJexlRule, iMasterComponentGroup, iName, iOrderNumber, isComponentGroup, iSimComponentElement, iSimModel, iVarMap

Constructor Summary

Constructors

Constructor	Description
PlantSystemConductance()	Empty constructor used by class.forName()

Method Summary

Modifier and Type	Method	Description
protected net.simplace.sim.model.FWSimComponent	clone(net.simplace.sim.util.FWSimVarMap aVarMap)
HashMap<String,net.simplace.sim.util.FWSimVariable<?>>	createVariables()	Create the FWSimVariables as interface for this SimComponent
HashMap<String,net.simplace.sim.util.FWSimVariable<?>>	fillTestVariables(int aParamIndex, net.simplace.sim.model.FWSimComponent.TEST_STATE aDefineOrCheck)	called for single component test to check the components algorithm.
protected void	init()	Initializes the fields by getting input and output FWSimVariables from VarMap
protected void	process()	Process the algorithm and write the results back to VarMap

Methods inherited from class net.simplace.sim.model.FWSimComponent

addVariable, bind, checkCondition, createSimComponent, createSimComponent, createSimComponent, createSimComponent, doProcess, getConstantVariables, getContentType, getCreateFormXML, getDescription, getEditFormXML, getFieldMap, getFrequence, getFrequenceRuleScript, getInputs, getInputVariables, getMasterComponentGroup, getName, getOrderNumber, getOutputVariables, getVariable, getVariableField, getVarMap, initialize, isConditionCheck, isVariableAvailable, performLinks, performLinks, readInputs, removeVariable, reset, runComponentTest, setVariablesDefault, toComponentLinkingXML, toDocXML, toGroupXML, toOutputDefinitionXML, toResourcesDataXML, toResourcesDefinitionXML, toString, toXML, writeVarInfos

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

PlantSystemConductance

public PlantSystemConductance()

Empty constructor used by class.forName()

Method Details

createVariables

public HashMap<String,net.simplace.sim.util.FWSimVariable<?>> createVariables()

Create the FWSimVariables as interface for this SimComponent

Specified by:

createVariables in interface net.simplace.sim.util.FWSimFieldContainer

Specified by:

createVariables in class net.simplace.sim.model.FWSimComponent

See Also:

• FWSimComponent.createVariables()

init

protected void init()

Initializes the fields by getting input and output FWSimVariables from VarMap

Specified by:

init in class net.simplace.sim.model.FWSimComponent

See Also:

• FWSimComponent.init()

process

protected void process()

Process the algorithm and write the results back to VarMap

Specified by:

process in class net.simplace.sim.model.FWSimComponent

See Also:

• FWSimComponent.process()

fillTestVariables

public HashMap<String,net.simplace.sim.util.FWSimVariable<?>> fillTestVariables(int aParamIndex,
 net.simplace.sim.model.FWSimComponent.TEST_STATE aDefineOrCheck)

called for single component test to check the components algorithm.

Specified by:

fillTestVariables in class net.simplace.sim.model.FWSimComponent

See Also:

• net.simplace.sim.util.FWSimFieldContainer#fillTestVariables(int aParamIndex, TEST_STATE aDefineOrCheck)

clone

protected net.simplace.sim.model.FWSimComponent clone(net.simplace.sim.util.FWSimVarMap aVarMap)

Specified by:

clone in class net.simplace.sim.model.FWSimComponent

See Also:

• FWSimComponent.clone(net.simplace.sim.util.FWSimVarMap)