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

Class N2Ofunctions

java.lang.Object
net.simplace.sim.components.experimental.n2o.N2Ofunctions
public class N2Ofunctions extends Object
Author:
Andreas Enders, info@andreas-enders.de Henault, C, Germon, J.C. 2000: NEMIS, a predictive model of denitrification on the field scale, European Journal of Soil Science Linn, D.M., and J.W. Doran. 1984. Effect of water-filled pore space on carbon dioxide and nitrous oxide production in tilled and non-tilled soils. Soil Sci. Soc. Am. J. 48:1267-1272.

  • Constructor Details

    • N2Ofunctions

      public N2Ofunctions()

  • Method Details

    • calculateN2O

      public static void calculateN2O(net.simplace.sim.util.FWSimVariable<Double[]> cSoilDepth, net.simplace.sim.util.FWSimVariable<Double> cTopSoilDepth, net.simplace.sim.util.FWSimVariable<Double> cParticleDensity, net.simplace.sim.util.FWSimVariable<Double> cKm, net.simplace.sim.util.FWSimVariable<Double> cPotentialDenitrificationRate, net.simplace.sim.util.FWSimVariable<Double[]> iSoilTemperature, net.simplace.sim.util.FWSimVariable<Double[]> iNitrate, net.simplace.sim.util.FWSimVariable<Double[]> iWaterContent, net.simplace.sim.util.FWSimVariable<Double[]> iBulkDensity, net.simplace.sim.util.FWSimVariable<Double[]> TemperatureLimitFactor, net.simplace.sim.util.FWSimVariable<Double[]> NitrateLimitFactor, net.simplace.sim.util.FWSimVariable<Double[]> WaterLimitFactor, net.simplace.sim.util.FWSimVariable<Double[]> DenitrificationLayers, net.simplace.sim.util.FWSimVariable<Double> Denitrification)

    • calculateDenitrificationRate

      public static Double[] calculateDenitrificationRate(Double potentialdenitrificationrate, Double km, Double particledensity, Double[] nitrateamount, Double[] soildepth, Double denitrificationdepth, Double[] bulkdensity, Double[] watercontent, Double[] soiltemperature)
      Calculates Denitrification per Layer The potential denitrification rate is split proportionally to the layers in the topsoil. Then the actual rate per layer is determined by multiplying with the layer specific limiting factors regarding temperature, water content and nitrate content.
      Parameters:
      potentialdenitrificationrate - Maximum denitrification rate [g m-2 day-1]
      km - Nitrate limitation coefficient [mg/kg]
      particledensity - Soil particle density [g/cm^2]
      nitrateamount - Amount of nitrate per layer [g/m^2]
      soildepth - Bottom of soil layers [m]
      denitrificationdepth - Soildepth up to which denitrificatio occurs [m]
      bulkdensity - Bulkdensity per soil layer [g/m^2]
      watercontent - Soil water content per layer [mm]
      soiltemperature - Temperature of soil layers [°C]
      Returns:
      denitrification rate per layer [g m-2 d-1]

    • calculateN2O

      public static Double calculateN2O(Double cSoilDepth, Double cTopSoilDepth, Double cSoilLayerHeight, Double cParticleDensity, Double cKm, Double cPotentialDenitrificationRate, Double iSoilTemperature, Double iNitrate, Double iWaterContent, Double iBulkDensity)

    • calculateN2O

      public static Double calculateN2O(Double cParticleDensity, Double cKm, Double cPotentialDenitrificationRate, Double iSoilTemperature, Double iNitrate, Double iWaterContent, Double iBulkDensity)

    • calculateDenitrification

      public static double calculateDenitrification(Double cPotentialDenitrificationRate, Double TemperatureLimitFactor, Double NitrateLimitFactor, Double WaterLimitFactor)

    • calculateWaterLimitFactor

      public static Double calculateWaterLimitFactor(Double cParticleDensity, Double iWaterContent, Double iBulkDensity)

    • calculateNitrateLimitFactor

      public static Double calculateNitrateLimitFactor(Double cKm, Double iNitrate)

    • calculateTemperatureLimitFactor

      public static Double calculateTemperatureLimitFactor(Double iSoilTemperature)

    • calculatePotentialDenitrificationRate

      public static Double calculatePotentialDenitrificationRate(Double[] organiccarbon, Double[] bulkdensity, Double[] soildepth, double denitrificationdepth, Function<Double,Double> denitfunction)
      Calculates potential denitrification rate per day See Joël Léonard. Nitrification, denitrification and N2O emissions in STICS. 2016. ￿hal-02305546 https://hal.science/hal-02305546/document
      Parameters:
      organiccarbon - soil organic carbon per layer (%)
      bulkdensity - bulkdensity per layer (g/cm^3)
      soildepth - bottom depth of layers (m)
      denitrificationdepth - depth up to which denitrification occurs (m)
      denitfunction - function (possibly from interpolation table) that calculates denitrification from organic carbon
      Returns:
      potential denitrification rate per day (g /(m^2 d))