//---------------------------------------------------------------------
/// <summary>
/// Grows an individual cohort for a year, incrementing its age by 1
/// and updating its biomass for annual growth and mortality.
/// </summary>
/// <param name="index">
/// The index of the cohort to grow; it must be between 0 and Count - 1.
/// </param>
/// <param name="site">
/// The site where the species' cohorts are located.
/// </param>
/// <returns>
/// The index of the next younger cohort. Note this may be the same
/// as the index passed in if that cohort dies due to senescence.
/// </returns>
public int GrowCohort(int index,
ActiveSite site,
bool annualTimestep)
{
Debug.Assert(0 <= index && index <= cohortData.Count);
Debug.Assert(site != null);
Cohort cohort = new Cohort(species, cohortData[index]);
Debug.Assert(cohort.WoodBiomass <= cohort.WoodBiomass + cohort.LeafBiomass);
Debug.Assert(cohort.LeafBiomass <= cohort.WoodBiomass + cohort.LeafBiomass);
//if (isDebugEnabled)
// log.DebugFormat(" grow cohort: {0}, {1} yrs, {2} Mg/ha",
// cohort.Species.Name, cohort.Age, cohort.Biomass);
// Check for senescence
if (cohort.Age >= species.Longevity)
{
RemoveCohort(index, cohort, site, null);
return(index);
}
if (annualTimestep)
{
cohort.IncrementAge();
}
float[] biomassChange = Cohorts.BiomassCalculator.ComputeChange(cohort, site);
Debug.Assert(-(cohort.WoodBiomass + cohort.LeafBiomass) <= biomassChange[0] + biomassChange[1]); // Cohort can't loss more biomass than it has
//UI.WriteLine("B={0:0.00}, Age={1}, delta={2}", cohort.Biomass, cohort.Age, biomassChange);
cohort.ChangeWoodBiomass(biomassChange[0]);
cohort.ChangeLeafBiomass(biomassChange[1]);
//if (isDebugEnabled)
// log.DebugFormat(" biomass: change = {0}, cohort = {1}, site = {2}",
// biomassChange, cohort.Biomass, siteBiomass);
if (cohort.WoodBiomass + cohort.LeafBiomass > 0)
{
cohortData[index] = cohort.Data;
return(index + 1);
}
else
{
RemoveCohort(index, cohort, site, null);
return(index);
}
}
//---------------------------------------------------------------------
/// <summary>
/// Grows an individual cohort for a year, incrementing its age by 1
/// and updating its biomass for annual growth and mortality.
/// </summary>
/// <param name="index">
/// The index of the cohort to grow; it must be between 0 and Count - 1.
/// </param>
/// <param name="site">
/// The site where the species' cohorts are located.
/// </param>
/// <returns>
/// The index of the next younger cohort. Note this may be the same
/// as the index passed in if that cohort dies due to senescence.
/// </returns>
public int GrowCohort(int index,
ActiveSite site,
bool annualTimestep)
{
Debug.Assert(0 <= index && index <= cohortData.Count);
Debug.Assert(site != null);
Cohort cohort = new Cohort(species, cohortData[index]);
Debug.Assert(cohort.WoodBiomass <= cohort.WoodBiomass + cohort.LeafBiomass);
Debug.Assert(cohort.LeafBiomass <= cohort.WoodBiomass + cohort.LeafBiomass);
// Check for senescence
if (cohort.Age >= species.Longevity)
{
RemoveCohort(index, cohort, site, null);
return(index);
}
if (annualTimestep)
{
cohort.IncrementAge();
}
float[] biomassChange = Cohorts.BiomassCalculator.ComputeChange(cohort, site);
Debug.Assert(-(cohort.WoodBiomass + cohort.LeafBiomass) <= biomassChange[0] + biomassChange[1]); // Cohort can't loss more biomass than it has
cohort.ChangeWoodBiomass(biomassChange[0]);
cohort.ChangeLeafBiomass(biomassChange[1]);
if (cohort.WoodBiomass + cohort.LeafBiomass > 0)
{
cohortData[index] = cohort.Data;
return(index + 1);
}
else
{
RemoveCohort(index, cohort, site, null);
return(index);
}
}