Package net.simplace.sim.components.models.lintul

Klasse LintulPartitioning

java.lang.Object
net.simplace.sim.model.FWSimComponent
net.simplace.sim.components.models.lintul.LintulPartitioning
Alle implementierten Schnittstellen:
net.simplace.sim.util.FWSimFieldContainer
public class LintulPartitioning extends net.simplace.sim.model.FWSimComponent

LintulPartitioning.java calculates the fractions of the daily total biomass to be distributed into the plant organs leaves (FractionLeaves), roots (FractionRoot), stem (FractionStems) and storage organs (FractionStorageOrgans) in the SimComponent LintulBiomass. The crop and development stage specific fractions for each organ provided by the user in the partitioning tables in the crop properties file (FRTTB, FLVTB, FSTTB, FSOTB) are modified daily according to the dominance of either drought or nitrogen stress.

Effect of drought

If, at a given day, drought stress is dominant, the fraction of biomass transfered to the root is increased by multiplication with the root fraction modification factor (FRTMOD) which is calculated according to the equation

\[ \begin{eqnarray} FRTMOD Ungültige Eingabe: "&" =Ungültige Eingabe: "&" Max(1.0, 1.0 / (TRANRF + 0.5) \end{eqnarray} \]

where TRANRF is the transpiration reduction factor calculated in the SimComponent LintulWaterStress. Both factors are dimensionless, FTR ranging between 0 and 1 and FRTMOD is equal or greater than 1. The root partition fraction provided in the partitioning table (FRTTB) is then multiplied with FRTMOD thereby increasing the amount of assimilates transfered to the roots in the event of moderate to severe drought stress (TRANRF <span class="invalid-tag">Ungültige Eingabe: "<"</span> 0.5). The other fractions (FLVTB, FSTTB, FSOTB) are then reduced equally to ensure that the sum of all fractions remains equal to 1.

Effect of nitrogen stress

If, at a given day, nitrogen stress is dominant, the fraction of biomass transfered to the leaves is reduced with the leaf fraction modification factor (FLVMOD):

\[ \begin{eqnarray} FLVMOD Ungültige Eingabe: "&" =Ungültige Eingabe: "&" e^{-PartitionNStressReduction \cdot (1-NitrogenNutritionIndex)} \end{eqnarray} \]

where FLVMOD is the leaf fraction partitioning factor (0,1) and NitrogenNutritionIndex is the Nitrogen Nutrition Index calculated in the SimComponent NDemand. The PartitionNStressReduction factor is user specified in the crop properties file. All factors are dimensionless ranging between 0 and 1. The excess biomass is then transfered to the stem.

References

van Oijen, M. and P. Lefelaar. 2008. Lintul-2: water limited crop growth: A simple general crop growth model for water-limited growing conditions. Waageningen University, The Netherlands.

Autor:
Gunther Krauss, Andreas Enders, Thomas Gaiser Component for the Lintul crop model

Component Variables

Content TypeNameDescriptionData TypeUnitMin ValueMax ValueDefault Value
constantcFLVTBDeprecated: please use cLeavesPartitioningTableFraction/DVS. Fractions Table LeavesDOUBLEARRAY1---
constantcFRTTBDeprecated: please use cRootsPartitioningTableFraction/DVS. Fractions Table RootDOUBLEARRAY1---
constantcFSOTBDeprecated: please use cStorageOrganssPartitioningTableFraction/DVS. Fractions Table Storage OrgansDOUBLEARRAY1---
constantcFSTTBDeprecated: please use cStemsPartitioningTableFraction/DVS. Fractions Table StemsDOUBLEARRAY1---
constantcLeavesPartitioningTableDVSDVS for fraction of total dry matter to leaves (c.f. FLVTB)DOUBLEARRAY1---
constantcLeavesPartitioningTableFractionFraction of total dry matter to leaves as function of DVS (c.f. FLVTB)DOUBLEARRAY10.01.0-
constantcPartitionNStressReductionN Stress on PartitioningDOUBLE10.01.01.0
constantcRootsPartitioningTableDVSDVS for fraction of total dry matter to roots (c.f. FRTTB)DOUBLEARRAY1---
constantcRootsPartitioningTableFractionFraction of total dry matter to roots as function of DVS (c.f. FRTTB)DOUBLEARRAY10.01.0-
constantcStemsPartitioningTableDVSDVS for fraction of total dry matter to stems (c.f. FSTTB)DOUBLEARRAY1---
constantcStemsPartitioningTableFractionFraction of total dry matter to stems as function of DVS (c.f. FSTTB)DOUBLEARRAY10.01.0-
constantcStorageOrgansPartitioningTableDVSDVS for fraction of total dry matter to storage organs (c.f. FSOTB)DOUBLEARRAY1---
constantcStorageOrgansPartitioningTableFractionFraction of total dry matter to storage organs as function of DVS (c.f. FSOTB)DOUBLEARRAY10.01.0-
inputiDevStageDevelopment stage of the plantDOUBLE10.03.00.0
inputiDoSowif Sowingdate reached fraction tables are initializedBOOLEAN1--false
inputiNitrogenNutritionIndexNitrogen Nutrition IndexDOUBLE10.01.01.0
inputiTRANRFTranspiration reduction factorDOUBLE10.01.01.0
outFractionLeavesFraction part going to Leaves compartmentDOUBLE10.01.00.0
outFractionRootFraction part going to Root compartmentDOUBLE10.01.00.0
outFractionStemsFraction part going to Stems compartmentDOUBLE10.01.00.0
outFractionStorageOrgansFraction part going to Storage Organs compartmentDOUBLE10.01.00.0

  • Verschachtelte Klassen - Übersicht

    Von Klasse geerbte verschachtelte Klassen/Schnittstellen net.simplace.sim.model.FWSimComponent

    net.simplace.sim.model.FWSimComponent.TEST_STATE

  • Feldübersicht

    Von Klasse geerbte Felder net.simplace.sim.model.FWSimComponent

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

  • Konstruktorübersicht

    Konstruktoren
    Konstruktor
    Beschreibung
    LintulPartitioning()
    Empty constructor used by class.forName()

  • Methodenübersicht

    Modifizierer und Typ
    Methode
    Beschreibung
    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

    Von Klasse geerbte Methoden 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

    Von Klasse geerbte Methoden java.lang.Object

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

  • Konstruktordetails

    • LintulPartitioning

      public LintulPartitioning()
      Empty constructor used by class.forName()

  • Methodendetails

    • createVariables

      public HashMap<String,net.simplace.sim.util.FWSimVariable<?>> createVariables()
      create the FWSimVariables as interface for this SimComponent
      Angegeben von:
      createVariables in Schnittstelle net.simplace.sim.util.FWSimFieldContainer
      Angegeben von:
      createVariables in Klasse net.simplace.sim.model.FWSimComponent
      Siehe auch:
      • FWSimComponent.createVariables()

    • init

      protected void init()
      initializes the fields by getting input and output FWSimVariables from VarMap
      Angegeben von:
      init in Klasse net.simplace.sim.model.FWSimComponent
      Siehe auch:
      • FWSimComponent.init()

    • process

      protected void process()
      process the algorithm and write the results back to VarMap
      Angegeben von:
      process in Klasse net.simplace.sim.model.FWSimComponent
      Siehe auch:
      • 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.
      Angegeben von:
      fillTestVariables in Klasse net.simplace.sim.model.FWSimComponent
      Siehe auch:
      • Ungültige Referenz 
        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)
      Angegeben von:
      clone in Klasse net.simplace.sim.model.FWSimComponent
      Siehe auch:
      • FWSimComponent.clone(net.simplace.sim.util.FWSimVarMap)