Package net.simplace.sim.components.models.lintul5

Class Phenology

java.lang.Object

net.simplace.sim.model.FWSimComponent

net.simplace.sim.components.models.lintul5.Phenology

All Implemented Interfaces:

net.simplace.sim.util.FWSimFieldContainer

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

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

Introduction

The sim components in the package lintul5 implement the Lintul5 algorithms from (L5). They are designed to reproduce same results (up to rounding errors) as the original FST program.

The original model is subdivided into multiple sim components (which should be used in the following order to be as close as possible to the original algorithm).

1. Irradiation
2. PotentialEvapoTranspiration
3. WaterBalance
4. Phenology
5. RadiationUseEfficiency
6. Lintul5

Daylength calculation is performed by the transformer component AstronomicParametersTransformer

Phenology component calculates the phenology part

Description

The component calculates phenology according to original model's CROPP() routine.

It takes inputs from the AstronomicParametersTransformer.

It's outputs are used by WaterBalance, RadiationUseEfficiency and Lintul5.

For documentation of the algorithms please consult the orginal documentation (L5)

Changes to original

Control / Program flow

Has additional inputs iDoSow and iDoHarvest. The main routine starts running when iDoSow is true and runs every day until iDoHarvest is true.

• On iDoSow the model is (re)initialized and then the calculation is performed.
• On iDoHarvest all the outputs/states/rates are reset to their defaults (mostly 0). No further calculation is performed.

Within the calculation, the component checks - as in original Lintul5 - whether it should start at planting or at emergence and begins phenology development when CURRENT.DOY equals cIDPL or cIDEM. Therefore you have to make sure that iDoSow occurs before or at cIDPL resp. cIDEM, otherwise development won't start.

Additional Outputs

For the different phenology events, the day of year and date are output. There are as well booleans that become true only on the day when the event occurs and booleans that stay true when the event occurs until resetting/re-initialisation.

CropCycleCount is incremented at every DoHarvest.

Vernalisation

The phenology model has included vernalisation as in (L4V). By default vernalisation is switched off, so the model calculates as original Lintul5. To switch on vernalisation, the user has to provide the adequate parameters for vernalisation and to set cIDSL to 2.

Changes to vernalisation

Introduced a lower limit for the vernalisation factor (see (O))

References

• (L5) Joost Wolf, User guide for LINTUL5, Wageningen UR, Wageningen, 2012
• (L4V) Joost Wolf, User guide for LINTUL4(V), Wageningen UR, Wageningen, 2012
• (O) Ottman, M.J., Anthony Hunt, L., White, J.W., 2013. Photoperiod and vernalization effect on anthesis date in winter-sown spring wheat regions. Agronomy Journal 105, 1017-1025.

Author:

G. Krauss

See Also:

• Irradiation
• PotentialEvapoTranspiration
• WaterBalance
• RadiationUseEfficiency
• Lintul5
• AstronomicParametersTransformer

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cDTSMTB	increase in temperature sum as dependent on mean daily temperature	DOUBLEARRAY	°C d	-	-	-
constant	cDVSI	initial development stage of crop (from 0 to 2)	DOUBLE	1	-	-	0.0
constant	cIDEM	Day of emergence	INT	1	0	366	0
constant	cIDPL	Day of planting	INT	1	0	366	0
constant	cIDSL	development from emergence to flowering depends on temperature (=0), temperature + day length (=1), temperature + day length + vernalisation (=2)	INT	1	-	-	0
constant	cMinimalVernalisationFactor	lower threshold for the vernalisation factor	DOUBLE	1	0.0	1.0	0.0
constant	cPHOTTB	table of development rate reduction until flowering by daylength	DOUBLEARRAY	1	-	-	-
constant	cPL	start at planting	BOOLEAN	1	-	-	true
constant	cPhotoperiodTableFactor	Correction factor of development rate in dependence of day length (c.f. PHOTTB)	DOUBLEARRAY	1	-	-	0.0 1.0 1.0 1.0
constant	cPhotoperiodTableHour	Day length for correction factor of development (c.f. PHOTTB)	DOUBLEARRAY	h	-	-	0.0 8.0 12.0 18.0
constant	cTBASEM	lower threshold temp. for temperature sum increase before emergence	DOUBLE	°C	-30.0	50.0	0.0
constant	cTEFFMX	max. eff. temp. for temperature sum increase before emergence	DOUBLE	°C	-30.0	50.0	30.0
constant	cTSUM1	temperature sum required for vegetative period (from emergence to flowering)	DOUBLE	°C d	0.0	7000.0	1050.0
constant	cTSUM2	temperature sum required for generative period	DOUBLE	°C d	0.0	7000.0	1000.0
constant	cTSUMBranching	temperature sum from emergence to branching (optional)	DOUBLE	°C d	0.0	7000.0	700.0
constant	cTSUMEM	required temperature sum for crop emergence	DOUBLE	°C d	0.0	7000.0	60.0
constant	cTSUMMilkripeness	temperature sum from anthesis to milkripeness (optional)	DOUBLE	°C d	0.0	7000.0	700.0
constant	cTsumIncrementTableMeanTemp	Average temperature for daily increase in temperature (c.f. DTSMTB)	DOUBLEARRAY	°C	-	-	-5.0 0.0 30.0 45.0
constant	cTsumIncrementTableRate	Daily increase in temperature sum as function of av. temp. (c.f. DTSMTB)	DOUBLEARRAY	°C	-	-	0.0 0.0 30.0 30.0
constant	cVBASE	Vernalisation base thermal day	DOUBLE	d	-	-	0.0
constant	cVERNRT	Vernalisation factor dependend by average temperature	DOUBLEARRAY	1	-	-	-
constant	cVERSAT	Vernalisation max thermal day	DOUBLE	d	-	-	0.0
constant	cVernalisationDevStage	maximal devstage up to which vernalisation is applied	DOUBLE	1	-	-	0.3
constant	cVernalisationTableMeanTemp	Mean Temperature for vernal day rate (c.f. VERNRT)	DOUBLEARRAY	°C	-	-	0.0 1.0
constant	cVernalisationTableRate	Vernal day rate as function of mean temperature (c.f. VERNRT)	DOUBLEARRAY	1	-	-	1.0 1.0
input	iDDLP	Photoperiodic daylength	DOUBLE	h	-	-	0.0
input	iDoHarvest	harvesting	BOOLEAN	1	-	-	false
input	iDoInitialize	reinit	BOOLEAN	1	-	-	false
input	iDoSow	sowing	BOOLEAN	1	-	-	false
input	iTMAX	maximal air temperature during day (output of routine WEATHR)	DOUBLE	°C	-	-	0.0
input	iTMIN	minimal air temperature during day (output of routine WEATHR)	DOUBLE	°C	-	-	0.0
state	sDVS	development stage of crop (from 0 to 2)	DOUBLE	1	0.0	-	0.0
state	sTSULP	temperature sum from sowing/planting	DOUBLE	°C d	0.0	-	0.0
state	sTSUM	temperature sum from emergence	DOUBLE	°C d	0.0	-	0.0
state	sTSUML	temperature sum from emergence inclusive day length effect	DOUBLE	°C d	0.0	-	0.0
state	sVERN	vernalisation days	DOUBLE	d	-	-	0.0
rate	rDTSULP	increase in temperature sum from planting or sowing	DOUBLE	°C	-	-	0.0
rate	rDTSUM	actual increase in temperature sum from emergence without reduction (RDAYL)	DOUBLE	°C	-	-	0.0
rate	rDTSUML	actual increase in temperature sum from emergence with reduction for day length (RDAYL)	DOUBLE	°C	-	-	0.0
rate	rDVR	rate of phenological development	DOUBLE	d-1	-	-	0.0
rate	rRVERNR	vernal day increase rate	DOUBLE	1	-	-	0.0
out	AnthesisDOY	DOY of Anthesis	INT	1	1	366	-
out	AnthesisDate	Date of Anthesis	DATE	1	-	-	-
out	BranchingDOY	DOY of Branching	INT	1	1	366	-
out	BranchingDate	Date of Branching	DATE	1	-	-	-
out	CropCycleCount	Period of Sowing	INT	1	0	1000	0
out	EMERG	has emerged	BOOLEAN	1	-	-	false
out	EmergenceDOY	DOY of Emergence	INT	1	1	366	-
out	EmergenceDate	Date of Emergence	DATE	1	-	-	-
out	FLOW	has flowered	BOOLEAN	1	-	-	false
out	HasBranched	has branched	BOOLEAN	1	-	-	false
out	IDEMERG	Day of emergence	INT	1	-	-	0
out	IsAnthesis	true if Anthesis date	BOOLEAN	1	-	-	false
out	IsBranching	true if Anthesis date	BOOLEAN	1	-	-	false
out	IsEmergence	true if Emergence date	BOOLEAN	1	-	-	false
out	IsMaturity	true if maturity date	BOOLEAN	1	-	-	false
out	IsMilkripeness	true if milkripeness date	BOOLEAN	1	-	-	false
out	IsPhenologyEvent	true if sowing/emergence/anthesis/maturity date	BOOLEAN	1	-	-	false
out	IsSowing	true if Sowing date	BOOLEAN	1	-	-	false
out	MATURITY	is mature	BOOLEAN	1	-	-	false
out	MILKRIPENESS	milkripeness has occured	BOOLEAN	1	-	-	false
out	MaturityDOY	DOY of Maturity	INT	1	1	366	-
out	MaturityDate	Date of Maturity	DATE	1	-	-	-
out	MilkripenessDOY	DOY of Maturity	INT	1	1	366	-
out	MilkripenessDate	Date of Maturity	DATE	1	-	-	-
out	SOW	is sown	BOOLEAN	1	-	-	false
out	SowingDOY	DOY of Sowing	INT	1	1	366	-
out	SowingDate	Date of Sowing	DATE	1	-	-	-
out	VernalisationFactor	vernalisation factor	DOUBLE	1	0.0	1.0	0.0
out	WithCrop	crop is present	BOOLEAN	1	-	-	false

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
Phenology()	Empty constructor used by class.forName()
Phenology(String aName, HashMap<String,net.simplace.sim.util.FWSimVariable<?>> aFieldMap, HashMap<String,String> aInputMap, org.jdom2.Element aSimComponentElement, net.simplace.sim.util.FWSimVarMap aVarMap, int aOrderNumber)

Method Summary

Modifier and Type	Method	Description
protected void	CalculatePhenology()
protected net.simplace.sim.model.FWSimComponent	clone(net.simplace.sim.util.FWSimVarMap aVarMap)	creates a clone from this SimComponent for use in other threads
HashMap<String,net.simplace.sim.util.FWSimVariable<?>>	createVariables()
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()
protected void	initOnFirstCalculationDay()
protected void	initOnSowing()
protected void	initValues()
protected void	process()
protected void	resetOnHarvest()

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

Phenology

public Phenology(String aName,
 HashMap<String,net.simplace.sim.util.FWSimVariable<?>> aFieldMap,
 HashMap<String,String> aInputMap,
 org.jdom2.Element aSimComponentElement,
 net.simplace.sim.util.FWSimVarMap aVarMap,
 int aOrderNumber)

Parameters:

aName -

aFieldMap -

aInputMap -

aSimComponentElement -

aVarMap -

aOrderNumber -

Phenology

public Phenology()

Empty constructor used by class.forName()

Method Details

createVariables

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

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()

Specified by:

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

See Also:

• FWSimComponent.init()

initValues

protected void initValues()

initOnSowing

protected void initOnSowing()

initOnFirstCalculationDay

protected void initOnFirstCalculationDay()

resetOnHarvest

protected void resetOnHarvest()

process

protected void process()

Specified by:

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

See Also:

• FWSimComponent.process()

CalculatePhenology

protected void CalculatePhenology()

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)

creates a clone from this SimComponent for use in other threads

Specified by:

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

See Also:

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