Package net.simplace.sim.components.experimental.n2o

Class N2OPotentialFromOrganicMatter

java.lang.Object

net.simplace.sim.model.FWSimComponent

net.simplace.sim.components.experimental.n2o.N2OPotentialFromOrganicMatter

All Implemented Interfaces:

net.simplace.sim.util.FWSimFieldContainer

public class N2OPotentialFromOrganicMatter
extends net.simplace.sim.model.FWSimComponent

Calculates potential denitrification rate from soil organic carbon content

Calculation

Potential denitrification rate is calculated from interpolation table defined by cDenitrificationTableOrganicCarbon and cDenitrificationTablePotentialRate.

When using the default values , the potential rate increases linearly from 1 mg/(kg d) at 1% organic carbon to 20 mg/(kg d) at 6% organic carbon.

The potential nitrification rate is calculated for each layer up to the cDenitrificationSoilDepth, converted to g / (m^2 d) by multiplying with layer thickness and bulk density of layer and then summed up. The final output is the PotentialDenitrificationRate in g / (m^2 d).

Usage

The output PotentialDenitrificationRate can be linked to the SimCoponents NPKDemandSlimNP or NPKDemandSlimNitrogen parameter cPotentialDenitrificationRate.

Important notice

It's important to have accurate organic carbon values for the layers that are within the denitrification depth. If the initial thickness of layers is considerably bigger than the denitrification depth, then the organic carbon in the denitrification area might be higher than the value in the whole layer, as it might be distributed heterogeneously.

References

Joël Léonard. Nitrification, denitrification and N2O emissions in STICS. 2016. ￿hal-02305546 https://hal.science/hal-02305546/document

Author:

Gunther Krauss, guntherkrauss@uni-bonn.de

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cBulkDensity	Bulk density per layer	DOUBLEARRAY	g/cm3	-	-	-
constant	cDenitrificationSoilDepth	Maximum depth of denitrification	DOUBLE	m	0.0	3.0	0.2
constant	cDenitrificationTableOrganicCarbon	OrganicCarbon table to determine potential denitrification rate	DOUBLEARRAY	%	-	-	1.0 6.0
constant	cDenitrificationTablePotentialRate	Potential denitrification rates as function of OrganicCarbon [cDenitrificationTableOrganicCarbon]	DOUBLEARRAY	mg/kg	-	-	1.0 20.0
constant	cOrganicCarbon	Soil organic carbon percentage per layer	DOUBLEARRAY	%	-	-	-
constant	cSoilLayerDepth	Depth of lower layer boundary for each layer	DOUBLEARRAY	m	-	-	-
out	PotentialDenitrificationRate	Maximum denitrification rate at 20°C	DOUBLE	g m-2 day-1	0.0	100.0	0.0

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
N2OPotentialFromOrganicMatter()	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

N2OPotentialFromOrganicMatter

public N2OPotentialFromOrganicMatter()

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:

• net.simplace.simulation.model.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:

• net.simplace.simulation.model.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:

• net.simplace.simulation.model.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:

• net.simplace.simulation.model.FWSimComponent#clone(net.simplace.simulation.util.FWSimVarMap)