Ponds are defined as freshwater bodies between 25m2 and 5000m2. For newts the effective size is limited to 400m2. More...

#include <elements.h>

Inheritance diagram for Pond:

Public Member Functions
	Pond (void)

virtual void	DoDevelopment (void)

void	CalcPondPesticide ()
	Calculates the amount of pesticide per unit pond water. More...

void	CalcLarvalFood ()
	Calculates the amount of larval food present. More...

bool	SubtractLarvalFood (double a_food)
	Called by a larva when feeding, removes an age specific amount of larval food. More...

double	SupplyPondPesticide ()
	supply the current pesticide concentration per litre More...

virtual void	SetMaleNewtPresent (bool a_ispresent)
	Sets a male as present/absent. More...

bool	IsMaleNewtPresent ()
	Gets whether there is a male newt as present. More...

Public Member Functions inherited from Freshwater
	Freshwater (void)

Public Member Functions inherited from NonVegElement
	NonVegElement (void)

Public Member Functions inherited from LE
	LE (void)

virtual	~LE (void)

LE_Signal	GetSignal (void)

void	SetSignal (LE_Signal a_signal)

int	GetSubType (void)

void	SetSubType (int a_subtype)

int	GetALMaSSEleType (void)

void	SetALMaSSEleType (int a_type)

virtual TTypesOfLandscapeElement	GetElementType (void)

void	SetElementType (int a_type)

void	Trace (int a_value)

void	ResetTrace (void)

long	GetRunNum (void)

void	BumpRunNum (void)

long	GetMgtLoopDetectDate (void)

void	SetMgtLoopDetectDate (long a_num)

long	GetMgtLoopDetectCount (void)

void	SetMgtLoopDetectCount (long a_num)

void	Tick (void)

virtual TTypesOfVegetation	GetVegType (void)

int	GetVegStore (void)

void	SetVegStore (int a_veg)

void	ZeroVegAge ()

int	GetVegAge ()

virtual void	RecalculateBugsNStuff (void)

virtual int	GetVegPhase (void)

virtual double	GetVegCover (void)

virtual double	GetVegHeight (void)

virtual APoint	GetCentroid ()

virtual int	GetCentroidX ()

virtual int	GetCentroidY ()

virtual void	SetCentroid (int x, int y)

virtual double	GetDigestability (void)

virtual int	GetVegDensity (void)

virtual bool	GetSkScrapes (void)

virtual bool	IsMatureCereal ()

virtual bool	IsCereal ()

virtual bool	IsGrass ()

virtual bool	GetVegPatchy (void)

virtual void	SetVegPatchy (bool)

virtual double	GetDayDegrees (void)

virtual double	GetLAGreen (void)

virtual double	GetLATotal (void)

virtual double	GetGreenBiomass (void)

virtual double	GetDeadBiomass (void)

virtual double	GetVegBiomass (void)

virtual double	GetWeedBiomass (void)

virtual double	GetInsectPop (void)

virtual void	SetInsectPop (double)

virtual void	Insecticide (double)

virtual void	InsectMortality (double)

virtual void	ReduceWeedBiomass (double)

virtual void	ToggleCattleGrazing (void)

virtual void	TogglePigGrazing (void)

virtual void	SetVegBiomass (int)

virtual void	SetVegType (TTypesOfVegetation, TTypesOfVegetation)

virtual void	SetVegHeight (double)

virtual void	SetVegParameters (double, double, double, double)

virtual void	SetCropData (double, double, double, TTypesOfVegetation, double, int)

virtual void	SetCropDataAll (double, double, double, double, TTypesOfVegetation, double, double, int, double, bool, double)

virtual void	StoreLAItotal ()

virtual void	SetGrowthPhase (int)

virtual void	ForceGrowthInitialize (void)

virtual void	ForceGrowthTest (void)

virtual void	ForceGrowthDevelopment (void)

virtual void	ZeroVeg (void)

virtual void	ReduceVeg (double)

virtual void	ReduceVeg_Extended (double)

virtual void	GrazeVeg_Extended (double)

virtual double	GetTrafficLoad (void)

virtual TTypesOfVegetation	GetPreviousCrop (int)

bool	GetPoison (void)

void	SetPoison (bool a_poison)

bool	GetHigh (void)

int	GetCattleGrazing (void)

bool	GetPigGrazing (void)

bool	HasTramlines (void)

bool	IsRecentlyMown (void)

int	IsRecentlySprayed (void)

int	GetPoly (void)
	Returns the polyref number for this polygon. More...

int	GetMapIndex (void)

void	SetMapIndex (int a_map_index)

int	GetOwnerFile (void)

int	GetOwnerIndex (void)

int	GetLastTreatment (int *a_index)

Farm *	GetOwner (void)

double	GetArea (void)

double	GetGooseGrazingForage (GooseSpecies a_goose)

double	GetBirdSeed (void)

void	SetBirdSeed (double a_forage)

double	GetBirdMaize (void)

void	SetBirdMaize (double a_forage)

int	GetCountryDesignation (void)

void	SetCountryDesignation (int a_designation)

long	GetOldDays (void)

void	SetOwner (Farm *a_owner, int a_owner_num, int a_owner_index)

void	SetHigh (bool a_high)

void	SetPoly (int a_poly)

void	SetMapValid (bool a_valid)

bool	GetMapValid (void)

void	SetArea (double a_area)

virtual void	GrazeVegetation (double, bool)

virtual void	GrazeVegetationTotal (double)

int	GetSoilType ()

int	GetSoilTypeR ()

void	SetSoilType (int a_st)

void	SetLastSownVeg (TTypesOfVegetation a_tov)
	Records the last vegetation type to be sown. More...

TTypesOfVegetation	GetLastSownVeg ()
	Returns the last vegetation type to be sown. More...

void	SetLastTreatment (int a_treatment)

void	SetSprayedToday (bool a_didit)

bool	GetSprayedToday ()

void	SetCopyTreatment (int a_treatment)

void	SetOldDays (long a_days)

void	SetRotIndex (int a_index)

int	GetRotIndex (void)

void	SetTramlinesDecay (int a_decaytime_days)

void	SetHerbicideDelay (int a_decaytime_days)

void	SetMownDecay (int a_decaytime_days)

void	AddArea (double a_area_diff)

LE *	GetBorder (void)

int	GetUnsprayedMarginPolyRef (void)

void	SetBorder (LE *a_border)

void	SetUnsprayedMarginPolyRef (int a_unsprayedmargin)

void	SetPesticideCell (int a_cell)

int	GetPesticideCell ()

void	SetValidXY (int a_valid_x, int a_valid_y)

int	GetValidX (void)

int	GetValidY (void)

int	GetMaxX (void)

int	GetMaxY (void)

int	GetMinX (void)

int	GetMinY (void)

void	SetMaxX (int x)

void	SetMaxY (int y)

void	SetMinX (int x)

void	SetMinY (int y)

int	GetMDates (int a, int b)

void	SetMDates (int a, int b, int c)

int	GetMConstants (int a)

void	SetMConstants (int a, int c)

double	GetVegDDegs ()
	Get the total of day degrees for the crop/veg on this element. More...

int	GetOpenness (void)
	For goose model functionality, openness score for the polygon. More...

void	SetGooseNos (int a_number, int a_day)

void	SetGooseSpNos (int a_number, int a_day, GooseSpecies a_goose)

void	SetGooseNosTimed (int a_number, int a_day)

void	SetGooseSpNosTimed (int a_number, int a_day, GooseSpecies a_goose)

int	GetGooseNosToday ()
	For goose model functionality, returns the number of geese today. More...

int	GetGooseNosTodayTimed ()
	For goose model functionality, returns the number of geese today at a predefined time. More...

int	GetGooseNos ()
	For goose model functionality, returns the number of geese yesterday. More...

int	GetGooseSpNosToday (GooseSpecies a_goose)
	For goose model functionality, returns the number of geese per species yesterday. More...

int	GetGooseSpNosTodayTimed (GooseSpecies a_goose)
	For goose model functionality, returns the number of geese per species yesterday at a predefined time. More...

void	SetOpenness (int a_openness)
	Records the openness statistic for this polygon. More...

virtual void	ResetDigestability ()
	sets growth record to zero in descendent classes More...

void	DoCopy (const LE *a_Le)
	a copy function to be used because a copy constuctor won't work More...

Protected Attributes
double	m_LarvalFood
	The amount of larval food present. More...

double	m_LarvalFoodScaler
	The proportion of larval food per m2. More...

double	m_pondpesticide
	Holds the pesticide content per unit pond water. More...

bool	m_MaleNewtPresent
	Flag for presence of a male newt. More...

Protected Attributes inherited from LE
long	m_running

LE *	m_border

int	m_unsprayedmarginpolyref

int	m_valid_x

int	m_valid_y

int	m_centroidx

int	m_centroidy

int	m_vege_danger_store

int	m_PesticideGridCell

bool	m_is_in_map

int	m_subtype

int	m_maxx

int	m_minx

int	m_maxy

int	m_miny

long	m_olddays

long	m_management_loop_detect_date

long	m_management_loop_detect_count

Farm *	m_owner

int	m_countrydesignation

int	m_owner_file

int	m_owner_index

int	m_rot_index

bool	m_sprayedtoday
	flag to indicate an overspray situation More...

int	m_poly
	The polyref number for this polygon. More...

int	m_map_index

int	m_almass_le_type
	This holds the ALMaSS element type reference number. More...

int	m_farmfunc_tried_to_do

int	m_tramlinesdecay

int	m_mowndecay

int	m_herbicidedelay

TTypesOfLandscapeElement	m_type

double	m_area

int	m_gooseNos [366]
	The number of geese each day. More...

int	m_gooseSpNos [366][gs_foobar]
	The number of geese of each species each day. More...

int	m_gooseNosTimed [366]
	The number of geese at a predefined time per day. More...

int	m_gooseSpNosTimed [366][gs_foobar]
	The number of geese of each species at a predefined time per day. More...

double	m_birdseedforage
	The grain forage present in KJ/m2. More...

double	m_birdmaizeforage
	The maize forage present in KJ/m2. More...

double	m_goosegrazingforage [gs_foobar]
	The grazing forage present in KJ/min. More...

TTypesOfVegetation	m_lastsownvegtype
	Records the last vegegetation type that was sown on the element. More...

int	m_openness
	The openness metric for a field (if any) More...

int	m_vegage

int	m_soiltype

int	m_days_since_insecticide_spray

bool	m_high

bool	m_poison

int	m_cattle_grazing

int	m_default_grazing_level

bool	m_pig_grazing

double	m_vegddegs

double	m_yddegs

double	m_ddegs

vector< int >	m_lasttreat

unsigned int	m_lastindex

int	MDates [2][25]

int	MConsts [10]

LE_Signal	m_signal_mask

Additional Inherited Members
Public Attributes inherited from LE
int	m_tried_to_do

int	m_squares_in_map

bool	m_skylarkscrapes
	For management testing of skylark scrapes. More...

long	m_user [EL_MAX_USERSPACE]
	Variable used to record the current grazing pressure by e.g. voles. More...

bool	m_repeat_start

Static Protected Attributes inherited from LE
static double	m_monthly_traffic []
	Used for birds that feed on grain on cereal fields 3% spill is expected. More...

static double	m_largeroad_load []

static double	m_smallroad_load []

Detailed Description

Ponds are defined as freshwater bodies between 25m2 and 5000m2. For newts the effective size is limited to 400m2.

Currently the only pond 'behviour' is related to provision of food for newt larvae. This is determined daily and can be seasonally adjusted.

Definition at line 1082 of file elements.h.

Constructor & Destructor Documentation

Pond::Pond ( void )

Definition at line 2377 of file elements.cpp.

References LE_TypeClass::BackTranslateEleTypes(), m_LarvalFood, m_MaleNewtPresent, LE::m_type, LE::SetALMaSSEleType(), and tole_Pond.

                  : Freshwater() {
     m_type = tole_Pond;
     SetALMaSSEleType( g_letype->BackTranslateEleTypes( m_type ) );
     m_LarvalFood = 0.01;
     m_MaleNewtPresent = false;
 }

Member Function Documentation

void Pond::CalcLarvalFood ( )

Calculates the amount of larval food present.

The larval food is calculated assuming a logistic equation in the form of Nt+1 = Nt+(N*r * (1-N/K)) t = one day, N is a scaler which is multiplied by a constant and the area of the pond to get the total larval food, K & r are carrying capacity and instantaneous reproductive rate respectively. K can change with season and this is currently hard coded, but could be an input variable later. The values are held in LarvalFoodMonthlyK
The steps in the calculation are:

Enforce a assumed pond size for newts as maximum 400 m2
Ensure we never get zero larval food, so there is always something to grow the curve from.
Back calculate the current scaler value. This is needed because between time steps, food may be eaten by larvae. This is done based on the area and a fixed constant held in cfg_PondLarvalFoodBiomassConst
Calculate the new scaler based on the logistic equation as described above
Re-calculate the new total food biomass based on the area and a fixed constant held in cfg_PondLarvalFoodBiomassConst

Definition at line 2423 of file elements.cpp.

References cfg_PondLarvalFoodBiomassConst, cfg_PondLarvalFoodR, g_date, Calendar::GetMonth(), LE::m_area, m_LarvalFood, m_LarvalFoodScaler, and CfgFloat::value().

Referenced by DoDevelopment().

 {
     double area = m_area;
     if (m_area > 400) area = 400;
     const double LarvalFoodMonthlyK[12] = { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 };
     // Back calculate the scaler
     if (m_LarvalFood < 0.01) m_LarvalFood = 0.01;
     m_LarvalFoodScaler = m_LarvalFood / (cfg_PondLarvalFoodBiomassConst.value() * area);
     // Calculate the new scaler
     m_LarvalFoodScaler = m_LarvalFoodScaler + (m_LarvalFoodScaler*cfg_PondLarvalFoodR.value() * (1 - (m_LarvalFoodScaler / LarvalFoodMonthlyK[g_date->GetMonth() - 1])));
     // Calculate the new food biomass
     m_LarvalFood = m_LarvalFoodScaler * (cfg_PondLarvalFoodBiomassConst.value() * area);
 }

void Pond::CalcPondPesticide ( )

Calculates the amount of pesticide per unit pond water.

The pesticide is calculated based on the mean concentration per m2 which is then multiplied by a factor representing run-off from the surroundings or other movements of pesticides through soil into the pond. This method assumes a uniform depth of water, which is then ignored (so can be seen as being part of the run-off factor). The pesticide concentration is calculated each day. These calculations are heavy on CPU time because of the need to search the landscape map for pond 1m2 and sum pesticide. So this has to be set to run by flagging using cfg_calc_pond_pesticide

To create the sum of pesticide the map is searched from min x,y to max x,y coords, and pond cells are summed for their pesticide content. Then the mean found.

We assume a mean pond depth of 1 m, so pesticide per l = m_pondpesticide/1000 to get per litre then multiplied buy the run-off factor

Definition at line 2392 of file elements.cpp.

References cfg_calc_pond_pesticide, cfg_pondpesticiderunoff, g_landscape_p, LE::m_area, LE::m_maxx, LE::m_maxy, LE::m_minx, LE::m_miny, LE::m_poly, m_pondpesticide, Landscape::SupplyPesticide(), Landscape::SupplyPolyRef(), CfgFloat::value(), and CfgBool::value().

Referenced by DoDevelopment().

 {
     m_pondpesticide = 0.0;
     if (!cfg_calc_pond_pesticide.value())
     {
         return;
     }
     for (int x = m_minx; x <= m_maxx; x++)
     for (int y = m_miny; y <= m_maxy; y++)
     {
         if (g_landscape_p->SupplyPolyRef(x, y) == m_poly) m_pondpesticide += g_landscape_p->SupplyPesticide(x, y);
     }
     m_pondpesticide /= m_area;
     m_pondpesticide *= cfg_pondpesticiderunoff.value()/1000.0;
 }

void Pond::DoDevelopment ( void )

virtual

DoDevelopment is needed due to special development for this element type, i.e. larval food calculations for newts.

Reimplemented from LE.

Definition at line 2384 of file elements.cpp.

References CalcLarvalFood(), CalcPondPesticide(), LE::DoDevelopment(), and m_MaleNewtPresent.

 {
     LE::DoDevelopment();
     CalcPondPesticide();
     CalcLarvalFood();
     m_MaleNewtPresent = false;
 }

bool Pond::IsMaleNewtPresent ( )

inlinevirtual

Gets whether there is a male newt as present.

Reimplemented from LE.

Definition at line 1109 of file elements.h.

1109 { return m_MaleNewtPresent; };

Pond::m_MaleNewtPresent

bool m_MaleNewtPresent

Flag for presence of a male newt.

Definition: elements.h:1091

virtual void Pond::SetMaleNewtPresent ( bool a_ispresent )

inlinevirtual

Sets a male as present/absent.

Reimplemented from LE.

Definition at line 1107 of file elements.h.

1107 { m_MaleNewtPresent = a_ispresent; };

Pond::m_MaleNewtPresent

bool m_MaleNewtPresent

Flag for presence of a male newt.

Definition: elements.h:1091

bool Pond::SubtractLarvalFood ( double a_food )

Called by a larva when feeding, removes an age specific amount of larval food.

If the total amount of food is low then there is a probability test to determine if food can be found. If failed the return code false means no food was removed. If passed then this removes the amount of food passed in a_food and return true.

Definition at line 2449 of file elements.cpp.

References g_rand_uni, m_LarvalFood, and m_LarvalFoodScaler.

 {
     if (g_rand_uni() > m_LarvalFoodScaler * 2) return false;
     else 
     {
         m_LarvalFood -= a_food;
         return true;
     }
 }

double Pond::SupplyPondPesticide ( )

inline

supply the current pesticide concentration per litre

Definition at line 1105 of file elements.h.

1105 { return m_pondpesticide; }

Pond::m_pondpesticide

double m_pondpesticide

Holds the pesticide content per unit pond water.

Definition: elements.h:1089

Member Data Documentation

double Pond::m_LarvalFood

protected

The amount of larval food present.

Definition at line 1085 of file elements.h.

Referenced by CalcLarvalFood(), Pond(), and SubtractLarvalFood().

double Pond::m_LarvalFoodScaler

protected

The proportion of larval food per m2.

Definition at line 1087 of file elements.h.

Referenced by CalcLarvalFood(), and SubtractLarvalFood().

bool Pond::m_MaleNewtPresent

protected

Flag for presence of a male newt.

Definition at line 1091 of file elements.h.

Referenced by DoDevelopment(), and Pond().

double Pond::m_pondpesticide

protected

Holds the pesticide content per unit pond water.

Definition at line 1089 of file elements.h.

Referenced by CalcPondPesticide().

The documentation for this class was generated from the following files:

D:/CJT/Repos/ALMaSS_all/Landscape/elements.h
D:/CJT/Repos/ALMaSS_all/Landscape/elements.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation