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net.simplace.client.simulation.lap.slim.SlimNitrogen

Calculates the amount of Nitrate and Ammonium in the soil per layer. Routines taken from SLIM. Leaching of solutes slightly different than in SLIM, because water movement between layers is performed at once and not in aliquotes.

Component Variables

Content Type	Name	Description	Data Type	Unit	Min Value	Max Value	Default Value
constant	cAMEQ	proportion of ammonium on clay unavailable to nitrifiers	DOUBLE	1	0.0	20.0	0.0
constant	cAMR1	1st nitrification constant	DOUBLE	m	0.0	20.0	0.32
constant	cAMR2	2nd nitrification constant	DOUBLE	m	0.0	20.0	0.1363
constant	cAREA	-	DOUBLE	m2	0.0	20.0	1.0
constant	cAX	proportion of ammonium unavailable to crop	DOUBLE	m	0.0	20.0	0.2
constant	cBGEN	-	DOUBLE	kg/m2	0.0	20.0	1.0
constant	cBulkDensity	-	DOUBLEARRAY	g/cm3	-	-	-
constant	cCNH4	initial amount of ammonium in the soil profile	DOUBLEARRAY	mg/kg	0.0	20.0	-
constant	cCNO3	initial amount of nitrate in the soil profile	DOUBLEARRAY	mg/kg	0.0	20.0	-
constant	cDP	-	DOUBLE	1	0.0	20.0	0.0
constant	cFLOWNR	maximum uptake rate of nitrogen per day	DOUBLE	m	0.0	1000.0	40.0
constant	cIFWGEN	-	BOOLEAN	mm	-	-	false
constant	cMT	-	INT	1	0	1000	5
constant	cSCMIN	Minimum unextractable fraction of soil nitrate	DOUBLE	m	0.0	20.0	0.95
constant	cSCONC	nitrate concentration in rain	DOUBLE	g/m3	0.0	100.0	5.0
constant	cSMD	-	DOUBLE	mm	0.0	20.0	0.0
constant	cSoilLayerDepth	-	DOUBLEARRAY	m	-	-	-
constant	cSoilWaterFieldCapacity	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterInitial	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterReducedThreshold	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterResidual	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterSaturation	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cSoilWaterWiltingPoint	-	DOUBLEARRAY	m3/m3	-	-	-
constant	cTEMCO1	temperature coefficient for ammonification	DOUBLE	1	0.0	20.0	0.0
constant	cTEMCO2	temperature coefficient for nitrification	DOUBLE	1	0.0	20.0	0.0
constant	cWALIQ	-	DOUBLE	mm	0.0	20.0	3.0
constant	cWMGENS	-	DOUBLE	mm	0.0	20.0	0.0
constant	cWMGENT	-	DOUBLE	mm	0.0	20.0	0.0
constant	cWRGENS	-	DOUBLE	mm	0.0	20.0	0.0
constant	cWRGENT	-	DOUBLE	mm	0.0	20.0	0.0
constant	cWRSS	-	DOUBLE	mm	0.0	20.0	0.0
constant	cWRST	-	DOUBLE	mm	0.0	20.0	0.0
input	iActualTranspiration	-	DOUBLE	mm	0.0	20.0	0.0
input	iAmmoniumFertilisation	-	DOUBLE	g/m2	0.0	2000.0	0.0
input	iDrynessFactor	Dryness factor in layer i	DOUBLEARRAY	1	-	-	-
input	iLessMobileWater	Less mobile water (0.33	DOUBLEARRAY	mm	-	-	-
input	iMD95	-	INT	1	0	10000	0
input	iMobileWater	Mobile water (after leaching)	DOUBLEARRAY	mm	-	-	-
input	iNDemand	-	DOUBLE	g/m2	0.0	2000.0	0.0
input	iNMineralisationRate	Rate of ammonium produced from organic matter	DOUBLEARRAY	g/m2	-	-	-
input	iNinorg	Amount of inorganic N	DOUBLEARRAY	g/m2	-	-	-
input	iNitrateFertilisation	-	DOUBLE	g/m2	0.0	2000.0	0.0
input	iPercolatingWater	Water percolating out from layer i	DOUBLEARRAY	mm	-	-	-
input	iRAIN	-	DOUBLE	mm	0.0	20.0	0.0
input	iRetainedWater	-	DOUBLEARRAY	mm	-	-	-
input	iRootLength	Total root length in layer i (sum of lateral and and seminal roots)	DOUBLEARRAY	m	-	-	-
input	iSoilTemperature	Soil temperature in layer i	DOUBLEARRAY	°C	-	-	-
input	iTotalWater	-	DOUBLEARRAY	mm	-	-	-
input	iWFAST	-	DOUBLE	mm	0.0	20.0	0.0
input	iWHT15R	Retained water below 0.5*wilting point in layer i	DOUBLEARRAY	mm	-	-	-
input	iWithCrop	-	BOOLEAN	1	-	-	false
state	sWaterBefore	water before leaching	DOUBLEARRAY	mm	-	-	-
out	Ammonium	Ammonium in layer i mg*m-2	DOUBLEARRAY	g/m2	-	-	-
out	CropAvailNitrate	Nitrate (mobile+retained) in layer i	DOUBLEARRAY	g/m2	-	-	-
out	CropAvailableNinProfile	Crop Available Mineral N in the soil profile	DOUBLE	g/m2	0.0	2000.0	0.0
out	CummulatedDrainN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedFertilizerAmmonium	Cummulated amount of ammonium added as fertilizer	DOUBLE	g/m2	-	-	0.0
out	CummulatedFertilizerN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedFertilizerNitrate	Cummulated amount of nitrate added as fertilizer	DOUBLE	g/m2	-	-	0.0
out	CummulatedMineralizedN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedRainN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedRunoffN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedSeepN	-	DOUBLE	g/m2	-	-	0.0
out	CummulatedUptakeN	-	DOUBLE	g/m2	-	-	0.0
out	MineralNinProfile	Mineral N in the soil profile	DOUBLE	g/m2	-	-	0.0
out	MobileNitrate	Amount of solutes (nitrate) in the mobile water fraction in layer i	DOUBLEARRAY	g/m2	-	-	-
out	NH4inProfile	Daily Total amount of ammonium in the soil profile	DOUBLE	g/m2	-	-	0.0
out	NO3inProfile	Daily Total amount of nitrate in the soil profile	DOUBLE	g/m2	-	-	0.0
out	NUptake	Nitrogen uptake by the roots	DOUBLE	g/m2	-	-	0.0
out	Ninorg	Amount of inorganic N	DOUBLEARRAY	g/m2	-	-	-
out	Nitrate	total Nitrate in layer i	DOUBLEARRAY	g/m2	-	-	-
out	NitrateLossFastSeepage	Nitrate loss through runoff	DOUBLE	g/m2	-	-	0.0
out	NitrateLossSeepage	Nitrate loss through percolation	DOUBLE	g/m2	-	-	0.0
out	NitrificationRate	Change in Nitrate due to nitrification	DOUBLEARRAY	g/m2	-	-	-
out	PercolatingNitrogen	-	DOUBLEARRAY	g/m2	-	-	-
out	RetainedNitrate	Amount of solutes (nitrate) in the retainded water fraction in layer i	DOUBLEARRAY	g/m2	-	-	-
out	THICKL	-	DOUBLE	m	0.001	20.0	0.0

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

// Public Instance Methods

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

public final void init(); // Defines
net.simplace.simulation.model.FWSimComponent

Set the soil water and nitrogen content for all layers.

// Protected Instance Methods

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

Calculates one step (i.e. one day)

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

}

Hierarchy: java.lang.Object - net.simplace.simulation.model.FWSimComponent (net.simplace.simulation.util.FWSimFieldContainer) - SlimNitrogen