public static void siteSuccession(Landis.Library.DensityCohorts.SiteCohorts siteCohorts)
{
int RDflag;
float siteRD = SiteVars.SiteRD[siteCohorts.Site];
double GSO1 = EcoregionData.GSO1[siteCohorts.Ecoregion];
double GSO2 = EcoregionData.GSO2[siteCohorts.Ecoregion];
double GSO3 = EcoregionData.GSO3[siteCohorts.Ecoregion];
double GSO4 = EcoregionData.GSO4[siteCohorts.Ecoregion];
if (siteRD < GSO1)
{
RDflag = 0;
}
else if (siteRD >= GSO1 && siteRD < GSO2)
{
RDflag = 1;
}
else if (siteRD >= GSO2 && siteRD <= GSO3)
{
RDflag = 2;
}
else if (siteRD > GSO3 && siteRD <= GSO4)
{
RDflag = 3;
}
else
{
Debug.Assert(siteRD > GSO4);
RDflag = 4;
}
if (0 == RDflag || 1 == RDflag || 2 == RDflag)
{
//GetSeedNumberOnSite(Row, Col);
//SeedGermination(siteptr, l, RDflag);
NaturalMortality(siteCohorts, 1);//kill the youngest of trees
}
else if (3 == RDflag)
{
NaturalMortality(siteCohorts, 0);//kill all ages of trees
}
else
{
NaturalMortality(siteCohorts, 0);//kill all ages of trees
if (SiteVars.SiteRD[siteCohorts.Site] > GSO4)
{
SelfthinningTest(siteCohorts);
SiteVars.TotalSiteRD(siteCohorts);
}
}
}
//====NaturalMortality()====================================================================================================
public static void Selfthinning(Landis.Library.DensityCohorts.SiteCohorts siteCohorts)
{
double targetRD = SiteVars.SiteRD[siteCohorts.Site] - EcoregionData.GSO4[siteCohorts.Ecoregion];
double qmd = siteCohorts.siteQMD;
float[] shadeArray = new float[] { 0.0f, 0.1f, 0.3f, 0.5f, 0.7f, 0.9f };
//SortedList<double, Landis.Library.DensityCohorts.ICohort> cohortMortality = new SortedList<double, Library.DensityCohorts.ICohort>();
SortedDictionary <int, double> cohortMortality = new SortedDictionary <int, double>();
for (int i = 0; i < siteCohorts.AllCohorts.Count; i++)
{
double reldia = siteCohorts.AllCohorts[i].Diameter / qmd;
double mort = (0.84525 - (0.01074 * reldia) + (0.0000002 * Math.Pow(reldia, 3))) * (1 - shadeArray[siteCohorts.AllCohorts[i].Species.ShadeTolerance]);
cohortMortality.Add(i, mort);
}
var sortedDict = from entry in cohortMortality orderby entry.Value descending select entry;
var sortedMortality = sortedDict.ToDictionary(pair => pair.Key, pair => pair.Value);
double countRD = targetRD;
foreach (KeyValuePair <int, double> item in sortedMortality)
{
int deadTrees = (int)Math.Round(item.Value * siteCohorts.AllCohorts[item.Key].Treenumber);
float deadRD = computeMortalityRD(siteCohorts.AllCohorts[item.Key], deadTrees);
if (deadTrees > 0)
{
SiteVars.summaryLogMortality.Clear();
SummaryLogMortality slm = new SummaryLogMortality();
slm.Time = EcoregionData.ModelCore.CurrentTime;
slm.SiteIndex = siteCohorts.Site.DataIndex;
slm.EcoName = siteCohorts.Ecoregion.Name;
slm.Species = siteCohorts.AllCohorts[item.Key].Species.Name;
slm.Age = siteCohorts.AllCohorts[item.Key].Age;
slm.TreeNumber = deadTrees;
slm.Diameter = Math.Round(siteCohorts.AllCohorts[item.Key].Diameter, 1);
slm.MortalityCause = "Competition";
SiteVars.summaryLogMortality.AddObject(slm);
SiteVars.summaryLogMortality.WriteToFile();
}
siteCohorts.AllCohorts[item.Key].ChangeTreenumber(-deadTrees);
countRD -= deadRD;
if (countRD < 0)
{
break;
}
}
}
// Self thinning test
public static void SelfthinningTest(Landis.Library.DensityCohorts.SiteCohorts siteCohorts)
{
double targetRD = SiteVars.SiteRD[siteCohorts.Site] - EcoregionData.GSO4[siteCohorts.Ecoregion];
double qmd = siteCohorts.siteQMD;
float[] shadeArray = new float[] { 0.0f, 0.1f, 0.3f, 0.5f, 0.7f, 0.9f };
//SortedList<double, Landis.Library.DensityCohorts.ICohort> cohortMortality = new SortedList<double, Library.DensityCohorts.ICohort>();
SortedDictionary <int, double> cohortMortality = new SortedDictionary <int, double>();
for (int i = 0; i < siteCohorts.AllCohorts.Count; i++)
{
double reldia = siteCohorts.AllCohorts[i].Diameter / qmd;
double mort = (0.84525 - (0.01074 * reldia) + (0.0000002 * Math.Pow(reldia, 3))) * (1 - shadeArray[siteCohorts.AllCohorts[i].Species.ShadeTolerance]);
cohortMortality.Add(i, mort);
}
var sortedDict = from entry in cohortMortality orderby entry.Value descending select entry;
var sortedMortality = sortedDict.ToDictionary(pair => pair.Key, pair => pair.Value);
double countRD = targetRD;
Random randomNumber = new Random();
while (countRD > 0)
{
foreach (KeyValuePair <int, double> item in sortedMortality)
{
if (siteCohorts.AllCohorts[item.Key].Treenumber <= 0 || countRD <= 0)
{
continue;
}
if (randomNumber.NextDouble() < item.Value)
{
int deadTrees = 1;
float deadRD = computeMortalityRD(siteCohorts.AllCohorts[item.Key], deadTrees);
siteCohorts.AllCohorts[item.Key].ChangeTreenumber(-deadTrees);
countRD -= deadRD;
}
}
}
}
public static void TotalSiteRD(Landis.Library.DensityCohorts.SiteCohorts cohorts)
{
float siteRD = 0;
Landis.Library.DensityCohorts.Cohort.SetSiteAccessFunctions(cohorts);
if (cohorts == null)
{
SiteVars.SiteRD[cohorts.Site] = siteRD;
}
else
{
foreach (Landis.Library.DensityCohorts.ICohort cohort in cohorts.AllCohorts)
{
double tmp_term1 = Math.Pow((cohort.Diameter / 25.4), 1.605);
float tmp_term2 = 10000 / SpeciesParameters.SpeciesDensity.AllSpecies[cohort.Species.Index].MaxSDI;
int tmp_term3 = cohort.Treenumber;
double tmp = tmp_term1 * tmp_term2 * tmp_term3 / Math.Pow(EcoregionData.ModelCore.CellLength, 2);
siteRD += (float)tmp;
}
SiteVars.SiteRD[cohorts.Site] = siteRD;
}
//return siteRD;
}
public static void NaturalMortality(Landis.Library.DensityCohorts.SiteCohorts siteCohorts, int StartAge)
{
double DQ_const = 3.1415926 / (4 * 0.0002471 * Math.Pow(EcoregionData.ModelCore.CellLength, 2) * Math.Pow(30.48, 2));
Random rand = new Random();
//kill all tree, else kill youngest tree
if (StartAge == 0)
{
double tmpDQ = 0;
foreach (Landis.Library.DensityCohorts.ICohort cohort in siteCohorts.AllCohorts)
{
if (SpeciesParameters.SpeciesDensity.AllSpecies[cohort.Species.Index].SpType >= 0)
{
tmpDQ += Math.Pow(cohort.Diameter, 2) * DQ_const * cohort.Treenumber;
}
}
//====================================================================================================
foreach (Landis.Library.DensityCohorts.ICohort cohort in siteCohorts.AllCohorts)
{
if (SpeciesParameters.SpeciesDensity.AllSpecies[cohort.Species.Index].SpType >= 0)
{
double TmpMortality = Landis.Library.DensityCohorts.Cohorts.SuccessionTimeStep / 10 / (1.0 + Math.Exp(3.25309 - 0.00072647 * tmpDQ + 0.01668809 * cohort.Diameter / 2.54));
TmpMortality = (1.0f < TmpMortality ? 1.0f : TmpMortality);
double DeadTree = cohort.Treenumber * TmpMortality;
Debug.Assert(DeadTree <= UINT_MAX && DeadTree >= 0);
int DeadTreeInt = (int)DeadTree;
//if (DeadTree - DeadTreeInt >= 0.0001)
if (DeadTree > DeadTreeInt)
{
if (rand.NextDouble() < 0.1)
{
DeadTreeInt++;
}
}
if (DeadTreeInt >= cohort.Treenumber)
{
siteCohorts.RemoveCohort((Cohort)cohort, null);
}
else if (DeadTreeInt > 0)
{
cohort.ChangeTreenumber(-DeadTreeInt);
}
tmpDQ -= Math.Pow(cohort.Diameter, 2) * DQ_const * DeadTree;
}
else
{
cohort.ChangeTreenumber((int)Math.Pow(EcoregionData.ModelCore.CellLength, 2));
}
}
//====================================================================================================
}
else //kill youngest tree
{
double tmpDQ = 0;
foreach (Landis.Library.DensityCohorts.ICohort cohort in siteCohorts.AllCohorts)
{
if (SpeciesParameters.SpeciesDensity.AllSpecies[cohort.Species.Index].SpType >= 0)
{
tmpDQ += Math.Pow(cohort.Diameter, 2) * DQ_const * cohort.Treenumber;
}
}
foreach (Landis.Library.DensityCohorts.ICohort cohort in siteCohorts.AllCohorts)
{
if (SpeciesParameters.SpeciesDensity.AllSpecies[cohort.Species.Index].SpType >= 0)
{
if (cohort.Age <= (Landis.Library.DensityCohorts.Cohorts.SuccessionTimeStep * StartAge))
{
double TmpMortality = Landis.Library.DensityCohorts.Cohorts.SuccessionTimeStep / 10 / (1.0 + Math.Exp(3.25309 - 0.00072647 * tmpDQ + 0.01668809 * cohort.Diameter / 2.54));
TmpMortality = (1.0f < TmpMortality ? 1.0f : TmpMortality);
double DeadTree = cohort.Treenumber * TmpMortality;
Debug.Assert(DeadTree <= UINT_MAX && DeadTree >= 0);
int DeadTreeInt = (int)DeadTree;
//if (DeadTree - DeadTreeInt >= 0.0001)
if (DeadTree > DeadTreeInt)
{
if (rand.NextDouble() < 0.1)
{
DeadTreeInt++;
}
}
if (DeadTreeInt >= cohort.Treenumber)
{
siteCohorts.RemoveCohort((Cohort)cohort, null);
}
else if (DeadTreeInt > 0)
{
cohort.ChangeTreenumber(-DeadTreeInt);
}
tmpDQ -= Math.Pow(cohort.Diameter, 2) * DQ_const * DeadTree;
}
}
else
{
cohort.ChangeTreenumber((int)Math.Pow(EcoregionData.ModelCore.CellLength, 2));
}
}
}
}
//---------------------------------------------------------------------
public static void SetSiteAccessFunctions(SiteCohorts sitecohorts)
{
Cohort.ecoregion = sitecohorts.Ecoregion;
Cohort.site = sitecohorts.Site;
}
