Tumi Bjornsson Ph.D. Thesis - University of Adelaide · Regional Scale Modelling of the lower River Murray wetlands 216 9 References ... Bowles BA, Powling IJIJ, ... Johnston CA (1991)

Regional Scale Modelling of the lower River Murray wetlands

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Pilot Study for the Treatment of Agricultural Drainage Water from Dairy Farms at the

Lower River Murray, South Australia. PhD thesis, The University of Adelaide.

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Wen L, Recknagel F (2002) In situ removal of dissolved phosphorus in irrigation

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the Australian region. In 'Proc. Pacific Ocean Remote Sensing Conference'.

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flows decision support system. Environmental Modelling & Software 15, 257-265.


232

Glossary

Terminology

Wetland categories The division of wetlands into very simplified hydrological

connectivity classification, i.e. wetlands of similar type

“Exemplar” The monitored data of a wetland of a given category

Category wetlands wetland with no driving variable data within a give wetland

category for which “exemplar” data will be used as driving

variables, i.e. wetlands of a particular category

GIS Geographical Information System

DEM Digital Elevation Model

SME Spatial Modelling Environment – A GIS based modelling

environment

Simulation Running the model based on a management scenario

Scenario Hypothetical management situation which is modelled by

WETMOD 2 at a simulation run. One run of the model

Development Construction of the model including adapting WETMOD 1,

spatial data, wetland monitored data and river data followed by

calibration and validation of the model.

Calibration Fitting the model output to monitored data and adjusting

parameters such as thresholds

Validation Testing the model with data not used during the model

development to determine the degree of agreement between a

model and the real system.

State variables Model output (Phosphorus as PO4-P, nitrogen as NO3-N,

macrophytes, phytoplankton and zooplankton)

Driving variables Model time-series input (water temperature, turbidity, Secchi

depth and solar radiation)

Calibration Set parameters adjusted within the model to fit the model to

monitored data (e.g. turbidity sedimentation threshold,

zooplankton mortality rate, maximum phytoplankton growth

rate)

Retention Nutrient retain within a wetland

Uptake The reduction of nutrient load in a wetland through

phytoplankton and macrophyte growth ≈ Retention

Load Amount of suspended nutrient in the wetland, irrigation

drainage or river (resulting in inflow load to the wetland).

Directly related to the concentration simulated.

NTU Nephelometric Turbidity Units


233

Organisations

MDBC Murray Darling Basin Commission

BOM Bureau of Meteorology

DWLBC South Australian Department of Water, Land and Biodiversity

Conservation

DEH South Australian Department for Environment and Heritage

Equations

t

N R[mg/day] Nutrient Retention

τ [1/day] Turnover rate

D Average linear deviation from the measured values as a fraction

of the average observed values

ID Total Irrigation Drainage load

IC Concentration of irrigation drainage nutrient

I Irrigation Drainage flow in litres/day

∆ID Change in total Irrigation Drainage load after management

RF Total River Inflow load

%RO Percentage Reduction in Outflow

OF Total Outflow load

∆OF Change in total Outflow load post management.

CR and CW Concentrations of nutrients in the river

CR and CW Concentrations of nutrients in the wetland

R River flow rate

ƒ Represents a fraction of the river flow rate R.

%RO: Change in outflow due to management when compared to the

status quo (no management).

%RI: Effective change in wetland nutrient inflow due to nutrient

reduction scenario as compared with the status quo.

RL Initial river nutrient load

RN Change in wetland retention due to management

%RL Percentage River Load removed due to the wetland

management

Appendix

234

Appendix A: WETMOD differential equations

The initial concentrations for each wetland category are fixed as in Table 17.

Table 17: Initial values

Category Macrophyte

(MAC_BIOMASS),

Phytoplankton, Zooplankton, PO4-P, NO3-N

1 5 0.0001 1.2 0.00011 0.0003

2 15 0.0001 0.001, 0.00275 0.0004

3 5 0.0001 1.2 0.000133 0.00011

4 0.1 7.04 1.2 0.00026 0

5 0.1 2.51 1.2 0.000109

5

0.00026

6 15 Look at Data 1.2 Look at

Data

Look at

Data

The descriptions of the Macrophyte, Phytoplankton and Nutrient sectors were adapted

from (Cetin 2001).

Appendix

235

$Macrophytes

Equations Source

MAC_BIOMASS(t) = MAC_BIOMASS(t - dt) +

(Mac_Gross_PP - Mac_mortality - Mac_respiration) * dt

INFLOWS:

Mac_Gross_PP = if Turbidity<TurbGrowthLimiting then

Mac_GPP*mac_prod_cf*MAC_BIOMASS else 0.001

(Boumans 2001)

OUTFLOWS:

Mac_mortality = Mac_mort_rate*MAC_BIOMASS (Asaeda et al.

1997)

Mac_respiration = Mac_resp_rate*MAC_BIOMASS (Asaeda et al.

1997)

mac_net_prod = Mac_Gross_PP-Mac_respiration

mac_nut_cf =

(NO3N/(NO3N+mac_Ks_N))*(PO4P/(PO4P+mac_Ks_P))

Jorgensen 1986

mac_prod_cf = underwater_light_cf*mac_temp_cf*mac_nut_cf (Boumans 2001)

mac_temp_cf = EXP(0.2*(water_temp-mac_temp_opt))*((40-

water_temp)/(40-mac_temp_opt))^(0.2*(40-mac_temp_opt))

(Boumans 2001)

reflection = 0.9*(SolarRadiationInCalculation*100) (Recknagel et al.

1982)

surface_light = 0.5*reflection (Recknagel et al.

1982)

Turbidity2Secchi = IF (2.4355*(Turbidity)^-0.5675) =0 Then

0.000001 Else (2.4355*(Turbidity)^-0.5675)

underwater_light_cf = surface_light*EXP(-

(4.6/Zeu_Calculated)*1)

(Recknagel et al.

1982)

Zeu_Calculated = IF(Manual_Secchi_Overide=0)

THEN(1.7*(Manual_Secchi_Overide+0.001))

ELSE(1.7*Manual_Secchi_Overide)

(Recknagel et al.

1982)

Parameters Units Source

Mac_GPP = 0.005 kg/m3/d (Boumans 2001)

mac_Ks_N = 0.0001 kg/m3 Calibrated

mac_Ks_P = 0.00005 kg/m3 Calibrated

Mac_mort_rate = 0.01 kg/m3/d (Asaeda et al. 1997)

Mac_resp_rate = 0.018 cm3/m

3/d (Asaeda et al. 1997)

TurbGrowthLimiting = 70 NTU Calibrated

Appendix

236

Model terms Definition

MAC BIOMASS The biomass of the photosynthetic portion of the

macrophytes.

Mac GPP The gross primary production rate for the total plant

biomass.

Mac Gross PP The gross primary productivity of the photosynthetic

biomass.

Mac Ks N The half-saturation constant for the uptake of nitrates by

macrophytes.

Mac Ks P The half-saturation constant for the uptake of phosphate by

macrophytes.

Mac mort rate Mortality rate for the photosynthetic biomass

Mac mortality The mortality of the photosynthetic biomass.

Mac net prod The net primary productivity for total macrophyte biomass.

Mac nut cf The macrophyte nutrient coefficient.

Mac prod cf The macrophyte production coefficient.

Mac resp rate Respiration rate of photosynthetic biomass

Mac respiration The respiration of photosynthetic biomass.

Mac temp cf Macrophyte temperature coefficient

Mac temp opt The optimum temperature for macrophyte growth

Manual Secchi

override

Switch between sources of Secchi depth.

Manual vs Monitored

Secchi

Switch between sources of Secchi depth.

Reflection Determines the proportion incoming solar radiation reflected

from the water surface.

Secchi Selection of calculated or measured Secchi depth

Site assumed Secchi

Manual

Manual input of Secchi depth (fixed)

Surface Light Defines the proportion of light entering the surface water.

Turbidity2Secchi The calculation of the Secchi depth based on turbidity (see

Methodology)

Underwater light cf The underwater light coefficient.

Zeu Calculated Defines euphotic zone at 1 metre depth.

Appendix

237

$Phytoplankton

Equations Source

PHYTOPLANKTON(t) = PHYTOPLANKTON(t - dt) +

(pht_Gross_PP + Phytoplankton_In - Pht_grazing -

pht_respiration - pht_mortality - pht_sedimentation -

Phytoplankton_Out) * dt

INFLOWS:

pht_Gross_PP = if PHYTOPLANKTON>pht_max or

Turbidity>TurbGrowthLimiting then pht_max else

pht_prod_cf*pht_GPP*PHYTOPLANKTON

(Boumans 2001)

Phytoplankton_In = PhytoplanktonInflow_cm3m3

OUTFLOWS:

Pht_grazing = PHYTOPLANKTON*(zoo_growth_rate-

Zoo_resp_rate)

(Recknagel et al.

1982)

pht_respiration =

pht_resp_rate*pht_temp_cf*PHYTOPLANKTON

pht_mortality = pht_mort_rate*PHYTOPLANKTON (Asaeda et al.

1997)

pht_sedimentation = pht_sed*PHYTOPLANKTON (Recknagel et al.

1982)

Phytoplankton_Out = PhytoplanktonOutflow_cm3m3

pht_max = IF Cat_Cal_Used=6 THEN (pht_max_6) ELSE IF

Cat_Cal_Used = 5 THEN (pht_max_5) ELSE

((IF(Cat_Cal_Used = 1) THEN(pht_max_1) ELSE

((IF(Cat_Cal_Used = 2 ) THEN (pht_max_2) ELSE

((IF(Cat_Cal_Used =3) THEN (pht_max_3) ELSE

((IF(Cat_Cal_Used = 4) THEN (pht_max_4) ELSE 2))))))))

(Recknagel et al.

1982)

pht_net_prod = pht_Gross_PP-pht_respiration

pht_nut_cf =

(NO3N/(NO3N+pht_Ks_N))*(PO4P/(PO4P+pht_Ks_P))

Jorgensen 1986

pht_prod_cf = underwater_light_cf*pht_temp_cf*pht_nut_cf (Boumans 2001)

pht_sed = IF Cat_Cal_Used=6 THEN (pht_sed_6) ELSE IF

Cat_Cal_Used = 5 THEN (pht_sed_5) ELSE

((IF(Cat_Cal_Used = 1) THEN(pht_sed_1) ELSE

((IF(Cat_Cal_Used = 2 ) THEN (pht_sed_2) ELSE

((IF(Cat_Cal_Used =3) THEN (pht_sed_3) ELSE

((IF(Cat_Cal_Used = 4) THEN (pht_sed_4) ELSE 0.2))))))))

(Recknagel et al.

1982)

pht_temp_cf = 1.08^(water_temp-20) Hamilton and

Schladow 1997

Appendix

238

Equations Source

ZOOPLANKTON(t) = ZOOPLANKTON(t - dt) + (Pht_grazing

- Zoo_mortality) * dt

INFLOWS:

Pht_grazing = PHYTOPLANKTON*(zoo_growth_rate-

Zoo_resp_rate)

(Recknagel et al.

1982)

OUTFLOWS:

Zoo_mortality =

ZOOPLANKTON*zoo_mort_rate*(1.05^(water_temp-20))

(Recknagel et al.

1982)

dark_grazing = grazing_temp_cf*zoo_grazing_cf (Recknagel et al.

1982)

day_length = 12-7*COS(Time_period) (Recknagel et al.

1982)

grazing_temp_cf = IF(water_temp=0) THEN(1.05*EXP(-

2*ABS(LOGN((water_temp+0.001)/20))+0.26))

ELSE(1.05*EXP(-2*ABS(LOGN(water_temp/20))+0.26))

(Recknagel et al.

1982)

pht_grazing_rate = dark_grazing*(24-

day_length)/24+0.8*dark_grazing*day_length/24

(Recknagel et al.

1982)

pht_Ks_grazing = If PHYTOPLANKTON>0 THEN

4*0.4*PHYTOPLANKTON^1.5 Else

4*0.4*(PHYTOPLANKTON+0.00001)^1.5

(Recknagel et al.

1982)

zoo_grazing_cf = if ZOOPLANKTON>0 then

PHYTOPLANKTON

*pht_pref/ZOOPLANKTON/(5/pht_Ks_grazing

+PHYTOPLANKTON*pht_pref/pht_Ks_grazing

+5/ZOOPLANKTON+PHYTOPLANKTON

*pht_pref/ZOOPLANKTON) else 0.001

(Recknagel et al.

1982)

zoo_growth_rate = if MAC_BIOMASS>10 then ((0.8-

0.4/1.3)*pht_grazing_rate) else 0.05

(Recknagel et al.

1982)

zoo_mort_rate = IF Cat_Cal_Used=6 THEN (ZooMortRate_6)

ELSE IF Cat_Cal_Used = 5 THEN (ZooMortRate_5) ELSE

((IF(Cat_Cal_Used = 1) THEN(ZooMortRate_1) ELSE

((IF(Cat_Cal_Used = 2 ) THEN (ZooMortRate_2) ELSE

((IF(Cat_Cal_Used =3) THEN (ZooMortRate_3) ELSE

((IF(Cat_Cal_Used = 4) THEN (ZooMortRate_4) ELSE

0.3))))))))

(Recknagel et al.

1982)

Zoo_resp_rate = (((0.22-0.08/1.3)*pht_grazing_rate)*0.36)

*(0.17*(water_temp/20)^2+0.05)

(Recknagel et al.

1982)

Appendix

239


pht_GPP = 1.8 cm3/m

3/d (Boumans 2001)

pht_Ks_N = 0.00001 kg/m3 Hamilton and Schladow

1997

pht_Ks_P = 0.00001 kg/m3 Hamilton and Schladow

1997

pht_max_1 = 0.1

pht_max_2 = 0.1

pht_max_3 = 1

pht_max_4 = 1

pht_max_5 = 0.5

pht_max_6 = 2

Calibrated

pht_mort_rate = 0.019 cm3/m


pht_pref = 2.5 dimless (Recknagel et al. 1982)

pht_resp_rate = 0.047 cm3/m


pht_sed_1 = if Turbidity >TurbSed_pht

then 0.1 else 0.01


then 0.05 else 0.01


then 0.05 else 0.01


then 0.5 else 0.2


then 0.5 else 0.2


then 0.5 else 0.2

Fraction of

biomass

(Where 1 is

100%)

Calibrated

TurbSed_pht = 95 NTU Calibrated

ZooMortRate_1 = 0.2

ZooMortRate_2 = 0.2

ZooMortRate_3 = 0.5

ZooMortRate_4 = 0.2

ZooMortRate_5 = 0.6

ZooMortRate_6 = 0.3

cm3/m

3/d Calibrated

Appendix

240


PHYTOPLANKTON The biomass of phytoplankton (defines Chl-a concentration

in terms of biomass).

Dark grazing Defies the grazing rate of zooplankton during night-time

feeding on phytoplankton.

Day length Defines the length of the day.

Grazing temp cf Temperature coefficient for grazing.

Pht GPP The phytoplankton gross primary production rate.

Pht grazing The grazing of phytoplankton by zooplankton.

Pht grazing rate Determines the grazing rate dependent on the time of day.

Pht Gross PP The phytoplankton gross primary productivity.

Pht Ks grazing The half-saturation constant for zooplankton grazing on

phytoplankton.

Pht Ks N The half-saturation constant for the uptake of nitrates by

phytoplankton.

Pht Ks P The half-saturation constant for the uptake of phosphate by

phytoplankton.

Pht max The maximum possible biomass of phytoplankton, i.e. the

carrying capacity.

Pht mort rate The phytoplankton mortality rate.

Pht mortality The phytoplankton mortality.

Pht net prod The phytoplankton net primary productivity.

Pht nut cf The phytoplankton nutrient coefficient.

Pht pref The zooplankton preference factor for phytoplankton

grazing.

Pht prod cf The phytoplankton production coefficient.

Pht resp rate The phytoplankton respiration rate.

Pht respiration The phytoplankton respiration.

Pht sed The sedimentation rate of phytoplankton, which is

dependent on turbidity.

Pht sedimentation The sedimentation of phytoplankton.

Pht temp cf The phytoplankton temperature coefficient.

Phytoplankton in The inflow of phytoplankton into the wetland.

Phytoplankton out The inflow of phytoplankton into the river.

PhytoplanktonInflow

cm3m3

The phytoplankton inflow concentration in cm3/m3

PhytoplanktonOutflow

cm3m3

The phytoplankton outflow concentration in cm3/m3

Appendix

241

ZOOPLANKTON The biomass of zooplankton.

Zoo grazing cf The grazing coefficient of zooplankton, which changes with

the phytoplankton biomass.

Zoo growth rate The growth rate of zooplankton.

Zoo mort rate The mortality rate for zooplankton.

Zoo mortality The zooplankton mortality.

Zoo resp rate The respiration rate of zooplankton.

Appendix

242

$Nutrients

Equations Source

PO4P(t) = PO4P(t - dt) + (P_loading + P_sed_release +

P_IN_gL - P_uptake - P_soil_coprecip - P_OUT) * dt

INFLOWS:

P_loading =

(P_from_land+P_loading_rate)/Wetlandvolume_Liters

Jorgensen 1986

P_sed_release = Turbidity/900*P_from_land (Recknagel et al.

1982)

P_IN_gL = PInflowAmount_mgL/1000

OUTFLOWS:

P_uptake =

PO4P*((pht_net_prod*pht_PC)+(mac_net_prod*Mac_PC))

(Boumans 2001)

P_soil_coprecip = P_sed*PO4P (Recknagel et al.

1982)

P_OUT = POutflow_Amount_gL

P_sed = IF Cat_Cal_Used=6 THEN (P_sed_6) ELSE IF

Cat_Cal_Used = 5 THEN (P_sed_5) ELSE ((IF(Cat_Cal_Used

= 1) THEN(P_sed_1) ELSE ((IF(Cat_Cal_Used = 2 ) THEN

(P_sed_2) ELSE ((IF(Cat_Cal_Used =3) THEN (P_sed_3)

ELSE ((IF(Cat_Cal_Used = 4) THEN (P_sed_4) ELSE

0.05))))))))

(Recknagel et al.

1982)

pht_PC = IF Cat_Cal_Used=6 THEN (pht_PC_6) ELSE IF

Cat_Cal_Used = 5 THEN (pht_PC_5) ELSE

((IF(Cat_Cal_Used = 1) THEN(pht_PC_1) ELSE

((IF(Cat_Cal_Used = 2 ) THEN (pht_PC_2) ELSE

((IF(Cat_Cal_Used =3) THEN (pht_PC_3) ELSE

((IF(Cat_Cal_Used = 4) THEN (pht_PC_4) ELSE 0.05))))))))

(Boumans 2001)

Equations Source

NO3N(t) = NO3N(t - dt) + (N_loading + N_sed_release +

N_IN_gL - N_uptake - N_soil_coprecip - N_OUT -

Denitrification) * dt

INFLOWS:

N_loading =

(N_from_land+N_loading_rate)/Wetlandvolume_Liters

Jorgensen 1986

N_sed_release = Turbidity/2500*N_from_land (Recknagel et al.

1982)

N_IN_gL = NInflowAmount_mgL/1000

Appendix

243

OUTFLOWS:

N_uptake =

NO3N*((pht_net_prod*pht_NC)+(mac_net_prod*Mac_NC))

(Boumans 2001)

N_soil_coprecip = N_sed*NO3N (Recknagel et al.

1982)

N_OUT = NOutflow_Amount_gL

N_sed = IF Cat_Cal_Used=6 THEN (N_sed_6) ELSE IF

Cat_Cal_Used = 5 THEN (N_sed_5) ELSE ((IF(Cat_Cal_Used

= 1) THEN(N_sed_1) ELSE ((IF(Cat_Cal_Used = 2 ) THEN

(N_sed_2) ELSE ((IF(Cat_Cal_Used =3) THEN (N_sed_3)

ELSE ((IF(Cat_Cal_Used = 4) THEN (N_sed_4) ELSE

0.1))))))))

(Recknagel et al.

1982)

pht_NC = IF Cat_Cal_Used=6 THEN (pht_NC_6) ELSE IF

Cat_Cal_Used = 5 THEN (pht_NC_5) ELSE

((IF(Cat_Cal_Used = 1) THEN(pht_NC_1) ELSE

((IF(Cat_Cal_Used = 2 ) THEN (pht_NC_2) ELSE

((IF(Cat_Cal_Used =3) THEN (pht_NC_3) ELSE

((IF(Cat_Cal_Used = 4) THEN (pht_NC_4) ELSE 0.05))))))))

(Boumans 2001)


P_loading_rate = 0.0005 g/L Walker and Hillman

N_loading_rate = 0.005 g/L Walker and Hillman

Mac_NC = 0.5 Ratio (Boumans 2001)

Mac_PC = 0.1 Ratio (Boumans 2001)

N_from_land = 0.0005 g/m2 Young et al 1996

P_from_land = 0.00003 g/m2 Young et al 1996

N_sed_1 = if Turbidity>TurbSedN

then 0.32 else 0.22


then 0.15 else 0.12


then 0.5 else 0.1


then 0.5 else 0.2


then 0.2 else 0.1

N_sed_6 = if Turbidity>70 then 0.2

else 0.1

Ratio Calibrated

P_sed_1 = if Turbidity>TurbSedP then

0.32 else 0.22

Ratio Calibrated

Appendix

244


0.15 else 0.12


0.5 else 0.1


0.5 else 0.2


0.2 else 0.1

P_sed_6 = if Turbidity>70 then 0.2

else 0.1

pht_NC_1 = 0.05

pht_NC_2 = 0.05

pht_NC_3 = 0.05

pht_NC_4 = 0.05

pht_NC_5 = 0.05

pht_NC_6 = 0.05

Ratio (Boumans 2001)

pht_PC_1 = 0.05

pht_PC_2 = 0.05

pht_PC_3 = 0.1

pht_PC_4 = 0.5

pht_PC_5 = 0.05

pht_PC_6 = 0.05

Ratio (Boumans 2001)

TurbSedN = 70 NTU Calibrated

TurbSedP = 70 NTU Calibrated


NO3N Nitrate as NO3-N

PO4P Orthophosphate as PO4-P

N sed Coprecipitation rate for NO3-N dependent on turbidity

P sed Coprecipitation rate for PO4-P dependent on turbidity

Mac NC N:C ratio required by macrophytes

Pht NC N:C ratio required by phytoplankton

N loading Non point source of NO3-N

N loading rate Non point source of NO3-N (minimal)

N from land Non point source of NO3-N (minimal)

Appendix

245

P loading Non point source of PO4-P

P loading rate Non point source of PO4-P (minimal)

P from land Non point source of PO4-P (minimal)

Mac PC P:C ratio required by macrophytes

Pht PC P:C ratio required by phytoplankton

N soil coprecip The coprecipitation rate for NO3-N O

P soil coprecip The coprecipitation rate for PO4-P

N in gL The inflow of NO3-N into the wetland.

P in gL The inflow of PO4-P into the wetland.

Ninflow Amount gL The NO3-N inflow concentration in g/L

Noutflow Amount gL The NO3-N outflow concentration in g/L

N sed release The NO3-N released from sediments.

N out The outflow of NO3-N to the river

P out The outflow of PO4-P to the river

Pinflow Amount gL The PO4-P inflow concentration in g/L

Poutflow Amount gL The PO4-P outflow concentration in g/L

P sed release The PO4-P released from sediments.

N uptake The uptake of NO3-N associated with macrophyte and algae

production.

P uptake The uptake of PO4-P associated with macrophyte and algae

production.

Appendix

246

$NutrientExchange

Equations/Rules Description/definition

DrainFlow_SunnyORPaiw =

IF(Category_Time_Series_Used=1)THEN(PDrainFlo

w_Paiwalla)

ELSE(IF(Category_Time_Series_Used=2)

THEN(PDrainFlow_Sunnyside) ELSE(0))

Gives the modeller the

option to simulate

irrigation inflow into

Paiwalla wetland.

Intended to test whether

the hypothesis that no

irrigation drainage was

affecting Paiwalla

wetland.

DrainFlow_PreMultiplication_Factor =

IF(IrrigationDrainage=1)

THEN(DrainFlow_SunnyORPaiw)

ELSE(IF(IrrigationDrainage=2)

THEN(PDrainFlow_REEDY) ELSE(0))

Selects the appropriate

drainage flow depending

to the wetland being

simulated.

DrainFlow_L = IF

(Drainage_Channel_multiplication_Factor=0) THEN

(DrainFlow_PreMultiplication_Factor) ELSE

((DrainFlow_PreMultiplication_Factor

*(Drainage_Channel_multiplication_Factor

*Seasonal_Flow_Pattern_SunnyORReedy)))

Calculates the drain flow

volume given the average

flow volume per day and

the seasonal flow pattern.

Therefore the average

flow can be increased

and the seasonal flow

pattern maintained.

Seasonal_Flow_Pattern_SunnyORReedy =

IF(Category_Time_Series_Used = 2)

THEN(Seasonal_Flow_Pattern_Sunnyside)ELSE(IF(

Category_Time_Series_Used = 4)

THEN(Seasonal_Flow_Pattern_Reedy) ELSE(1))

PDrainFlow_Paiwalla =

IF((Paiwalla_P_Drain_mg_perL+Paiwalla_N_Drain_

mg_perL)>0)

THEN(DrainFlowVolume_Liters_perDay_Sunnyside)

ELSE(0)

PDrainFlow_REEDY =

IF((Reedy_DrainPConc_mg_perL+REEDY_DrainNC

onc_mg_perL)>0)

THEN(DrainFlowVolume_Liters_perDay_REEDY)

ELSE(0)

PDrainFlow_Sunnyside =

IF((Sunnyside_P_Drain_mg_perL+Sunnyside_N_Drai

n_mg_perL)>0)

THEN(DrainFlowVolume_Liters_perDay_Sunnyside)

ELSE(0)

Selects the drain flow

volume from the

appropriate wetland data.

Appendix

247


Chla%_Removed_from_Drainage_Load = 0 Manual control to reduce

the Chl-a inflow.

Chla_DrainLoad_REEDY =

IF(REEDY_Chla_Drain_ugL>0)

THEN(REEDY_Chla_Drain_ugL

*DrainFlowVolume_Liters_perDay_REEDY)

ELSE(0)

Chla_DrainLoad_Sunnyside =

IF(Sunnyside_Chla_ugL>0)

THEN(Sunnyside_Chla_ugL*DrainFlowVolume_Lite

rs_perDay_Sunnyside) ELSE(0)

Calculates inflow load

from the concentration

and flow volume.

Chla_Drain_Load_Reedy2 =

(IF(IrrigationDrainage=1) THEN(0)


THEN(Chla_DrainLoad_REEDY)/100 ELSE(0)))*(IF

(Chla%_Removed_from_Drainage_Load >0) THEN

(100-Chla%_Removed_from_Drainage_Load) Else

100)

Chla_DrainLoad_Sunnyside2 =

(IF(IrrigationDrainage=1)

THEN(Chla_DrainLoad_Sunnyside)/100

ELSE(IF(IrrigationDrainage=2) THEN(0)

ELSE(0)))*(IF

(Chla%_Removed_from_Drainage_Load >0) THEN

(100-Chla%_Removed_from_Drainage_Load) Else

100)

Calculates the actual load

used in the simulation.

This is where the load is

reduced as per potential

management strategy.

REEDY_Chla_Drainage_divided_into_wetland =

IF(Drainage_Channel_multiplication_Factor=0)

THEN(Chla_Drain_Load_Reedy2/Wetlandvolume_Li

ters)

ELSE((Chla_Drain_Load_Reedy2/Wetlandvolume_Li

ters)*(Drainage_Channel_multiplication_Factor*Seas

onal_Flow_Pattern_SunnyORReedy))

Sunnyside_Chla_divided_into_wetland =


THEN(Chla_DrainLoad_Sunnyside2/Wetlandvolume

_Liters)

ELSE((Chla_DrainLoad_Sunnyside2/Wetlandvolume

_Liters)*(Drainage_Channel_multiplication_Factor*S

easonal_Flow_Pattern_SunnyORReedy))

Calculates the dispersal

of inflow load into the

wetland, i.e. to obtain

concentration.

Fits the concentration to


Chla_Accross_Wetland = Selects wether Reedy

Appendix

248

IF(Category_Time_Series_Used=2)

THEN(Sunnyside_Chla_divided_into_wetland)

ELSE(REEDY_Chla_Drainage_divided_into_wetland

)

Creek or Sunnyside

wetland data is to be used

depending on wetland

being simulated.

PhytoplanktonInflow_cm3m3 =

(((ChlaRiver_ugL/2.5)*Hypothetical_Inflow_m3)/(We

tlandvolume_Liters/1000))+(Chla_Accross_Wetland*

2.5)

Calculates the total

Phytoplankton inflow

into the wetland.

Merges Irrigation

drainage Chla-a inflow

and River Chl-a inflow.

Converts Chl-a into

phytoplankton.

PhytoplanktonOutflow_cm3m3 =

Hypothetical_Outflow_m3*PHYTOPLANKTON/(We

tlandvolume_Liters/1000)

Calculates the

concentration of outflow

depending on the outflow

volume and the

concentration within the

wetland.

Appendix

249


N%_Removed_from_Drain_Load = 0 Manual control to reduce

the NO3-N inflow

NDrainLoad_REEDY =

IF(REEDY_DrainNConc_mg_perL>0)

THEN(REEDY_DrainNConc_mg_perL*DrainFlowV

olume_Liters_perDay_REEDY) ELSE(0)

NDrainLoad_Sunnyside =

IF(Sunnyside_N_Drain_mg_perL>0)

THEN(Sunnyside_N_Drain_mg_perL*DrainFlowVol

ume_Liters_perDay_Sunnyside) ELSE(0)

NDrainLoad_Paiwalla =

IF(Paiwalla_N_Drain_mg_perL>0)

THEN(Paiwalla_N_Drain_mg_perL*DrainFlowVolu

me_Liters_perDay_Sunnyside) ELSE(0)



and flow volume

NDrainLoad_SunnyORPaiw =

IF(Category_Time_Series_Used=1)THEN(NDrainLoa

d_Paiwalla)


THEN(NDrainLoad_Sunnyside) ELSE(0))

Select the appropriate

drain load for either

Sunnyside or Paiwalla

wetlands.

NDrainLoad = (IF(IrrigationDrainage=1)

THEN(NDrainLoad_SunnyORPaiw)/100


THEN(NDrainLoad_REEDY)/100 ELSE(0)))*(IF

(N%_Removed_from_Drain_Load >0) THEN (100-

N%_Removed_from_Drain_Load) Else 100)

Calculate the actual load





N_Drain_Water_Inflow =


THEN(NDrainLoad/Wetlandvolume_Liters)

ELSE((NDrainLoad/Wetlandvolume_Liters)*(Drainag

e_Channel_multiplication_Factor*Seasonal_Flow_Pat

tern_SunnyORReedy))




concentration.



NInflowAmount_mgL =

((Hypothetical_Inflow_Liters*NRiver_mgL)/Wetland

volume_Liters)+N_Drain_Water_Inflow

Calculates the inflow

concentration as a

function of the wetland

volume of NO3-N into

the wetland.

NOutflow_Amount_gL =

(NO3N*Hypothetical_Outflow_Liters)/(Wetlandvolu

me_Liters)

Calculates the outflow

concentration as a


volume of NO3-N from

the wetland.

Appendix

250


P%_Removed_from_Drain_Load = 0 Manual control to reduce

the PO4-P inflow

PDrainLoad_REEDY =

IF(Reedy_DrainPConc_mg_perL>0)

THEN(Reedy_DrainPConc_mg_perL*DrainFlowVolu

me_Liters_perDay_REEDY) ELSE(0)

PDrainLoad_Sunnyside =

IF(Sunnyside_P_Drain_mg_perL>0)

THEN(Sunnyside_P_Drain_mg_perL*DrainFlowVolu


PDrainLoad_Paiwalla =

IF(Paiwalla_P_Drain_mg_perL>0)

THEN(Paiwalla_P_Drain_mg_perL*DrainFlowVolu




and flow volume

PDrainLoad_SunnyORPaiw =

IF(Category_Time_Series_Used=1)THEN(PDrainLoa

d_Paiwalla)


THEN(PDrainLoad_Sunnyside) ELSE(0))

Select the appropriate

drain load for either

Sunnyside or Paiwalla

wetlands.

PDrainLoad = ((IF(IrrigationDrainage=1)

THEN(PDrainLoad_SunnyORPaiw)/100


THEN(PDrainLoad_REEDY)/100 ELSE(0)))*(IF

(P%_Removed_from_Drain_Load >0) THEN (100-

P%_Removed_from_Drain_Load) Else 100))

Calculate the actual load





P_Drain_Water_Inflow =


THEN(PDrainLoad/Wetlandvolume_Liters)

ELSE((PDrainLoad/Wetlandvolume_Liters)*(Drainag

e_Channel_multiplication_Factor*Seasonal_Flow_Pat

tern_SunnyORReedy))




concentration.



PInflowAmount_mgL =

((Hypothetical_Inflow_Liters*PRiver_mgL)/Wetlandv

olume_Liters)+P_Drain_Water_Inflow

Calculates the inflow

concentration as a


volume of PO4-P into the

wetland.

POutflow_Amount_gL =

(PO4P*Hypothetical_Outflow_Liters)/(Wetlandvolum

e_Liters)

Calculates the outflow

concentration as a


volume of PO4-P from

the wetland

Appendix

251

$Wetland&RiverFlowExchange


Percentage_of_River_Flow_regarded_as_exchange =

1

Manual control of the

exchange volume as

percentage of the

wetland.

River_Exchange_Below_1% = 1 To reduce the exchange

volume below 1% of

river flow

FlowExchange%ofRiverFlow =

((FlowRiver_m3_per_Day/100)*Percentage_of_River

_Flow_regarded_as_exchange)/River_Exchange_Belo

w_1%

Calculates the volume

exchanged.

Hypothetical_Inflow_m3 =

IF(Flow_In_No1_ManualInput2_Wetland3_River4 =

2) THEN(ManualControlFlowIn_m3)

ELSE(IF(Flow_In_No1_ManualInput2_Wetland3_Ri

ver4 = 3) THEN(FlowExchangeInVolumeDependent)

ELSE(IF(Flow_In_No1_ManualInput2_Wetland3_Ri

ver4 = 4)THEN(FlowExchangeInRiverDependent)

ELSE(0)))

Selects the source of the

control for volume

exchange. Possible to

manually set exchange

volume.

Hypothetical_Outflow_m3 =

IF(Flow_Out_No1_ManualInput2_Wetland3_River4

= 2) THEN(ManualControlFlowOut_m3)

ELSE(IF(Flow_Out_No1_ManualInput2_Wetland3_R

iver4 = 3)

THEN(FlowExchangeOutVolumeDependent)

ELSE(IF(Flow_Out_No1_ManualInput2_Wetland3_R

iver4 =

4)THEN(FlowExchangeOutRiverDependent+(DrainFl

ow_L/1000)) ELSE(0)))

Selects the source of the

control for volume

exchange. Possible to

manually set exchange

volume.

Adds the irrigation drain

inflow volume to the

outflow volume.

Appendix

252

$SpatialRelevantTimeSeries

Solar Radiation see Methodology

$RiverNutrients

See Methodology

$WetlandsTimeseriesUpdateMeasuredValues

Extra wetland data and future wetland data.

$WetlandTimeseriesUpdate

Extra wetland data and future wetland data.

$RiverTimeseries4WetlandUpdateTimeseries

Same as $RiverNutrients but for extra wetland data and future wetland data.

$PotentialContributionToRiver

See Methodology

Appendix

253

Appendix B: Driving Variables

Appendix

254

Figure 74: Data - Model Driving Variables; From Figure 9 in section 2.3

T urbidity

0

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

1 6 0

1 8 0

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

NT

U

Wate r T e mpe rature

0

5

1 0

1 5

2 0

2 5

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

de

g C

Solar R adiation Paiwalla & Sunnyside We tlands

0

5

1 0

1 5

2 0

2 5

3 0

Fe

b-9

8

Ma

r-9

8

Ap

r-9

8

Ma

y-9

8

Ju

n-9

8

Ju

l-9

8

Au

g-9

8

MJ

pe

r s

qu

are

me

ter

A

B

C

P a iwa lla W e tland 1997 S unnys ide W e tland 1997

Appendix

255


T urbidity

0

5 0

1 0 0

1 5 0

2 0 0

2 5 0

3 0 0

3 5 0

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

Se

p-9

7

NT

U


0

5

1 0

1 5

2 0

2 5

3 0

3 5

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

Se

p-9

7

de

g C

Solar R adiation P ilby C re e k & Lock 6 We tlands

0

5

1 0

1 5

2 0

2 5

3 0

3 5

Fe

b-9

8

Ma

r-9

8

Ap

r-9

8

Ma

y-9

8

Ju

n-9

8

Ju

l-9

8

Au

g-9

8

Se

p-9

8

MJ

pe

r s

qu

are

me

ter

D

E

F

L o ck 6 we tla nd 1 9 9 7 P ilb y C re e k W e tla nd 1 9 9 7

Appendix

256


T urbidity

-5 0

0

5 0

1 0 0

1 5 0

2 0 0

2 5 0

3 0 0

3 5 0

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

NT

U


0

5

1 0

1 5

2 0

2 5

3 0

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

de

g C

Solar R adiation R e e dy C re e k We tland

0

5

1 0

1 5

2 0

2 5

3 0

3 5

4 0

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

MJ

pe

r s

qu

are

me

ter

G

H

I

Reedy C reek W e tland 2000 -2001

Appendix

257

Figure 77: Time Series Irrigation Drainage ; From Figure 10 section 2.3.1

Dra in ag e Ph yto p lan kto n

0

0 .0 5

0 .1

0 .1 5

0 .2

0 .2 5

0 .3

0 .3 5

0 .4

0 .4 5

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

cm

3/m

3

D rainage N O 3-N

0

0 .2

0 .4

0 .6

0 .8

1

1 .2

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

mg

/L

D rainage PO 4-P

0

0 .5

1

1 .5

2

2 .5

3

3 .5

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

mg

/L

A

B

C

S unnys ide W e tland

Appendix

258

Figure 78: Time Series Irrigation Drainage; From Figure 10 section 2.3.1

Se aso n al Drain ag e Patte rn Re e d y Cre e k Su b catch me n t

0 .0 0

0 .2 0

0 .4 0

0 .6 0

0 .8 0

1 .0 0

1 .2 0

1 .4 0

1 .6 0

1 .8 0

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

Re

lati

ve

Ra

te P

er

Mo

nth

-

-

D

Appendix

259

Figure 79: Time Series Irrigation Drainage ; From Figure 10 in section 2.3.1

D rainage Phytoplankton

-2 0

0

2 0

4 0

6 0

8 0

1 0 0

1 2 0

1 4 0

1 6 0

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

cm

3/m

3

D rainage N O 3-N

-0 .4

-0 .2

0

0 .2

0 .4

0 .6

0 .8

1

1 .2

1 .4

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

mg

/L

Drainage PO4-P

-1

0

1

2

3

4

5

6

7

8

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

mg

/L

E

F

G

Re e d y C re e k W e tla nd

Appendix

260

Figure 80: River Data; From Figure 11 in section 2.3.2

PO4-P

-1

0

1

2

3

4

5

6

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

mg

/L

NO3-N

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

mg

/L

Phytoplankton

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1

1.2

1.4

Feb-9

7

Mar-

97

Apr-

97

May-9

7

Jun-9

7

Jul-97

Aug-9

7

cm

3/m

3

A

B

C

P a iwa lla W e tla nd S unnys id e W e tla nd

Appendix

261


PO4-P

-0.05

0

0.05

0.1

0.15

0.2

Feb-9

7

Mar-

97

Apr-

97

May-9

7

Jun-9

7

Jul-97

Aug-9

7

Sep-9

7

mg

/L

NO3-N

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Feb-9

7

Mar-

97

Apr-

97

May-9

7

Jun-9

7

Jul-97

Aug-9

7

Sep-9

7

mg

/L

Phytoplankton

0

2

4

6

8

10

12

14

Fe

b-9

7

Ma

r-9

7

Ap

r-9

7

Ma

y-9

7

Ju

n-9

7

Ju

l-9

7

Au

g-9

7

Se

p-9

7

cm

3/m

3

D

E

F

L o ck 6 we tla nd 1 9 9 7 P ilb y C re e k W e tla nd 1 9 9 7

Appendix

262


PO4-P

-0.2

0

0.2

0.4

0.6

0.8

1

1.2

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oct-

00

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

mg

/L

NO3-N

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oct-

00

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

mg

/L

Phytoplankton

0

2

4

6

8

1 0

1 2

1 4

Ju

n-0

0

Ju

l-0

0

Au

g-0

0

Se

p-0

0

Oc

t-0

0

No

v-0

0

De

c-0

0

Ja

n-0

1

Fe

b-0

1

Ma

r-0

1

Ap

r-0

1

Ma

y-0

1

cm

3/m

3

G

H

I

Reedy C reek W e tland

Appendix

Appendix C: Key to wetland number

NOTE: This appendix is included in the print copy of the thesis held in the University of Adelaide Library.

Appendix

266

Appendix D: Cumulative Management Scenarios

Appendix

267

Table 20: Change in PO4-P wetland loading and percentage outflow due to management; category 3 wetland scenarios

PO4-P Net Loading to wetland kg/annum % Reduction in Outflow

Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0070 CAURNAMONT 703 1.5 1353858 3 541 535 540 542 -13 -2 3

S0075 WALKER FLAT

SOUTH LAGOON

690 0.8 710419 3 533 527 527 526 -12 -12 -14

S0076 LAKE BYWATERS 1107 0.8 310292 3 512 504 498 489 -11 -21 -34

S0082 DEVON DOWNS

SOUTH

685 0.92 493457 3 525 519 517 513 -11 -16 -23

S0093 YARRAMUNDI 1102 2 195388 3 493 483 471 496 -11 -25 4

1101 2 617098 3 530 524 523 531 -12 -14 2

S0094 YARRAMUNDI

NORTH

663 2 704688 3 532 527 527 533 -12 -12 1

S0103 ARLUNGA 651 0.9 1497057 3 512 505 511 514 -19 -4 5

S0104 ROONKA 646 0.9 147172 3 452 438 424 419 -15 -29 -34

S0105 REEDY ISLAND FLAT 644 1.2 266973 3 480 469 464 465 -16 -23 -20

Appendix

268


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0106 McBEAN POUND

SOUTH

645 0.65 42489 3 350 328 297 269 -11 -27 -41

S0107 McBEAN POUND

NORTH

642 0.65 121855 3 441 425 409 392 -14 -29 -44

S0108 SINCLAIR FLAT 641 0.92 20053 3 264 241 210 234 -8 -19 -10

640 0.92 513745 3 498 490 489 488 -16 -18 -20

S0109 DONALD FLAT

LAGOON

1044 1.25 1760260 3 514 506 513 516 -20 -2 6

S0110 IRWIN FLAT 391 2 881564 3 507 500 502 509 -18 -12 4

S0111 MURBPOOK LAGOON

COMPLEX

383 0.92 32620 3 321 298 266 278 -10 -24 -19

381 0.92 946764 3 508 501 503 506 -18 -12 -5

380 0.92 65777 3 393 373 348 346 -13 -29 -30

S0112 MURBKO SOUTH 379 0.9 1147222 3 510 503 506 510 -19 -10 -1

Appendix

269


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0113 MURBKO FLAT

COMPLEX

375 0.7 75477 3 405 386 362 344 -13 -30 -42

374 0.7 1135665 3 510 503 506 508 -19 -10 -6

371 0.7 65887 3 393 373 348 329 -13 -29 -41

S0115 WOMBAT REST

BACKWATER

367 0.7 264111 3 479 468 463 455 -16 -23 -35

S0142 BOGGY FLAT 294 1.5 89373 3 438 423 396 443 -11 -31 3

S0149 BIG TOOLUNKA FLAT 324 2.3 848443 3 532 526 526 533 -13 -14 2

S0160 YARRA COMPLEX 262 2 1717745 3 539 534 538 542 -15 -2 6

S0174 LOCH LUNA and

NOCKBURRA CREEK

1036 2 127894 3 492 475 456 534 -12 -27 32

S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 3 589 581 593 597 -25 11 24

S0189 PYAP LAGOON 631 2 904144 3 574 567 568 577 -15 -12 5

Appendix

270


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0201 AJAX ACHILLES LAKE 492 1.2 22764 3 283 259 225 419 -8 -20 48

486 1.2 262527 3 496 484 477 478 -16 -26 -25

S0203 SALT CREEK AND

GURRA GURRA LAKES

471 1.5 78987 3 420 401 375 444 -13 -30 16

S0207 LYRUP CAUSEWAY

WEST

1048 0.92 17437 3 250 227 195 228 -7 -17 -7

S0214 RUMPAGUNYAH CREEK 1039 2 230689 3 490 478 469 493 -15 -27 3

1031 2 371340 3 508 498 493 507 -16 -24 -1

S0218 GOAT ISLAND AND

PARINGA PADDOCK

1007 0.92 227636 3 490 478 468 461 -15 -27 -36

1006 0.92 235651 3 491 479 471 463 -15 -27 -36

S0219 PARINGA ISLAND 997 0.92 12402 3 169 154 129 145 -7 -18 -11

996 0.92 39096 3 263 248 224 219 -12 -32 -37

995 0.92 111272 3 321 311 298 290 -16 -36 -49

Appendix

271


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0219 PARINGA ISLAND 93 0.92 227075 3 343 336 329 324 -18 -33 -44

92 0.92 25097 3 229 213 186 188 -10 -28 -27

91 0.92 72376 3 301 289 271 263 -14 -36 -46

90 0.92 17157 3 197 181 155 161 -9 -23 -19

89 0.92 10223 3 153 138 115 137 -6 -16 -7

S0220 RAL RAL CREEK AND

RAL RAL WIDEWATERS

956 2 6785374 3 367 360 367 369 -37 4 14

S0227 HORSESHOE SWAMP 69 1.2 327432 3 350 343 340 339 -19 -30 -32

S0229 WOOLENOOK

BEND COMPLEX

978 1.2 2111925 3 365 359 364 366 -29 -3 7

84 1.2 29590 3 242 226 200 244 -11 -30 1

82 1.2 41520 3 267 253 229 253 -13 -33 -12

Appendix

272


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0230 MURTHO PARK

COMPLEX

67 0.92 31733 3 248 232 206 204 -11 -31 -32

61 0.92 24337 3 226 210 183 185 -10 -27 -26

60 0.92 50151 3 280 266 244 237 -13 -35 -41

47 0.92 250315 3 345 338 332 328 -18 -32 -44

S0242 SLANEY OXBOW 32 1.25 90869 3 313 302 286 291 -15 -37 -30

XR001 Lock 6 Wetland 1134 0.92 164860 3 364 358 363 364 -28 -6 2

Min 153 138 115 137

Max 589 581 593 597

Average 406 394 382 392

Median 438 423 396 419

Total 23140 22451 21795 22338

Appendix

273

Table 21: Change in NO3-N wetland loading and percentage outflow due to management; category 3 wetland scenarios

NO3-N Net Loading to wetland kg/annum % Reduction in Outflow

Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0070 CAURNAMONT 703 1.5 1353858 3 682 684 703 738 1 12 30

S0075 WALKER FLAT

SOUTH LAGOON

690 0.8 710419 3 665 662 675 700 -2 5 17

S0076 LAKE BYWATERS 1107 0.8 310292 3 626 609 616 650 -7 -4 10

S0082 DEVON DOWNS

SOUTH

685 0.92 493457 3 651 643 654 687 -4 1 16

S0093 YARRAMUNDI 1102 2 195388 3 590 563 567 795 -10 -8 73

1101 2 617098 3 660 655 668 759 -3 3 47

S0094 YARRAMUNDI

NORTH

663 2 704688 3 665 661 675 759 -2 5 46

S0103 ARLUNGA 651 0.9 1497057 3 709 705 728 753 -2 10 25

S0104 ROONKA 646 0.9 147172 3 583 537 547 640 -15 -12 19

S0105 REEDY ISLAND FLAT 644 1.2 266973 3 638 608 619 726 -12 -8 35

Appendix

274


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0106 McBEAN POUND

SOUTH

645 0.65 42489 3 405 333 342 349 -15 -13 -12

S0107 McBEAN POUND

NORTH

642 0.65 121855 3 561 510 520 531 -16 -12 -9

S0108 SINCLAIR FLAT 641 0.92 20053 3 282 215 227 617 -11 -9 56

640 0.92 513745 3 678 661 676 713 -8 -1 17

S0109 DONALD FLAT

LAGOON

1044 1.25 1760260 3 712 709 732 762 -2 12 29

S0110 IRWIN FLAT 391 2 881564 3 697 688 706 779 -5 5 43


COMPLEX

383 0.92 32620 3 361 289 299 610 -14 -12 48

381 0.92 946764 3 699 691 709 740 -4 5 22

380 0.92 65777 3 475 409 423 619 -16 -13 35

S0112 MURBKO SOUTH 379 0.9 1147222 3 704 698 717 746 -3 7 23

Appendix

275


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0113 MURBKO FLAT

COMPLEX

375 0.7 75477 3 496 433 446 495 -16 -13 0

374 0.7 1135665 3 704 697 716 739 -4 7 19

371 0.7 65887 3 475 410 423 477 -16 -13 0

S0115 WOMBAT REST

BACKWATER

367 0.7 264111 3 637 607 618 646 -12 -8 3

S0142 BOGGY FLAT 294 1.5 89373 3 516 466 462 803 -14 -15 79

S0149 BIG TOOLUNKA FLAT 324 2.3 848443 3 686 683 691 780 -2 2 49

S0160 YARRA COMPLEX 262 2 1717745 3 701 703 718 766 1 10 36

S0174 LOCH LUNA and

NOCKBURRA CREEK

1036 2 127894 3 611 560 569 947 -13 -11 88

S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 3 811 815 842 881 2 17 39

S0189 PYAP LAGOON 631 2 904144 3 777 770 790 880 -3 6 48

Appendix

276


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0201 AJAX ACHILLES LAKE 492 1.2 22764 3 304 234 242 805 -12 -11 85

486 1.2 262527 3 645 614 619 734 -13 -10 36


GURRA GURRA LAKES

471 1.5 78987 3 508 445 451 831 -16 -15 84


WEST

1048 0.92 17437 3 263 196 205 650 -11 -9 62

S0214 RUMPAGUNYAH CREEK 1039 2 230689 3 634 600 604 820 -13 -12 72

1031 2 371340 3 669 646 654 804 -10 -7 61


PARINGA PADDOCK

1007 0.92 227636 3 633 599 603 668 -13 -12 14

1006 0.92 235651 3 636 602 607 671 -13 -11 14

S0219 PARINGA ISLAND 997 0.92 12402 3 183 136 140 402 -12 -11 57

996 0.92 39096 3 308 258 259 394 -19 -18 33

995 0.92 111272 3 399 366 364 419 -19 -20 12

Appendix

277


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0219 PARINGA ISLAND 93 0.92 227075 3 436 416 416 449 -15 -15 9

92 0.92 25097 3 259 208 207 390 -17 -17 42

91 0.92 72376 3 366 326 324 405 -20 -21 19

90 0.92 17157 3 217 167 169 385 -14 -14 48

89 0.92 10223 3 164 121 124 430 -11 -10 65


RAL RAL WIDEWATERS

956 2 6785374 3 480 477 489 514 -3 9 38

S0227 HORSESHOE SWAMP 69 1.2 327432 3 449 433 436 477 -13 -11 23

S0229 WOOLENOOK

BEND COMPLEX

978 1.2 2111925 3 476 472 483 504 -5 8 30

84 1.2 29590 3 278 226 225 519 -17 -18 82

82 1.2 41520 3 314 265 266 506 -19 -19 75

Appendix

278


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0230 MURTHO PARK

COMPLEX

67 0.92 31733 3 285 234 233 392 -18 -18 38

61 0.92 24337 3 256 204 204 389 -16 -16 42

60 0.92 50151 3 333 286 286 397 -19 -20 27

47 0.92 250315 3 440 421 422 453 -15 -14 10

S0242 SLANEY OXBOW 32 1.25 90869 3 384 348 345 481 -19 -21 52

XR001 Lock 6 Wetland 1134 0.92 164860 3 475 470 481 499 -5 7 25

Min 164 121 124 349

Max 811 815 842 947

Average 513 481 490 622

Median 516 477 489 650

Total 29254 27445 27935 35477

Appendix

279

Table 22: Change in Phytoplankton wetland loading and percentage outflow due to management; category 3 wetland scenarios

Phytoplankton Loading to wetland m3/annum % Reduction in Outflow

Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0070 CAURNAMONT 703 1.5 1353858 3 -8 -9 -12 -10 -2 -19 -10

S0075 WALKER FLAT

SOUTH LAGOON

690 0.8 710419 3 -8 -9 -10 -12 -3 -11 -20

S0076 LAKE BYWATERS 1107 0.8 310292 3 -7 -8 -9 -11 -3 -11 -21

S0082 DEVON DOWNS

SOUTH

685 0.92 493457 3 -8 -8 -10 -12 -3 -11 -22

S0093 YARRAMUNDI 1102 2 195388 3 -7 -7 -8 -8 -3 -11 -11

1101 2 617098 3 -8 -8 -10 -3 -3 -11 27

S0094 YARRAMUNDI

NORTH

663 2 704688 3 -8 -9 -10 -6 -3 -11 13

S0103 ARLUNGA 651 0.9 1497057 3 -8 -8 -11 -11 -1 -20 -20

S0104 ROONKA 646 0.9 147172 3 -6 -6 -8 -6 -3 -12 -3

S0105 REEDY ISLAND FLAT 644 1.2 266973 3 -7 -7 -8 -7 -3 -11 -1

Appendix

280


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0106 McBEAN POUND

SOUTH

645 0.65 42489 3 -4 -4 -4 -5 -2 -4 -8

S0107 McBEAN POUND

NORTH

642 0.65 121855 3 -5 -6 -7 -8 -3 -12 -18

S0108 SINCLAIR FLAT 641 0.92 20053 3 -2 -2 -3 0 -1 -3 17

640 0.92 513745 3 -7 -8 -9 -11 -3 -11 -23

S0109 DONALD FLAT

LAGOON

1044 1.25 1760260 3 -8 -8 -11 -12 -1 -19 -25

S0110 IRWIN FLAT 391 2 881564 3 -8 -8 -9 -6 -2 -11 7


COMPLEX

383 0.92 32620 3 -3 -3 -4 -1 -1 -4 17

381 0.92 946764 3 -8 -8 -9 -11 -2 -11 -21

380 0.92 65777 3 -4 -5 -6 -7 -2 -14 -18

S0112 MURBKO SOUTH 379 0.9 1147222 3 -8 -8 -10 -11 -2 -11 -21

Appendix

281


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0113 MURBKO FLAT

COMPLEX

375 0.7 75477 3 -5 -5 -7 -7 -2 -13 -16

374 0.7 1135665 3 -8 -8 -9 -11 -2 -11 -18

371 0.7 65887 3 -4 -5 -6 -6 -2 -14 -13

S0115 WOMBAT REST

BACKWATER

367 0.7 264111 3 -7 -7 -8 -10 -3 -11 -20

S0142 BOGGY FLAT 294 1.5 89373 3 -5 -5 -7 -10 -3 -12 -35

S0149 BIG TOOLUNKA FLAT 324 2.3 848443 3 -8 -8 -10 -8 -3 -11 -3

S0160 YARRA COMPLEX 262 2 1717745 3 -8 -9 -12 -12 -2 -18 -18

S0174 LOCH LUNA and

NOCKBURRA CREEK

1036 2 127894 3 -6 -7 -8 -10 -2 -10 -26

S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 3 -9 -9 -12 -12 3 -12 -13

S0189 PYAP LAGOON 631 2 904144 3 -9 -9 -11 -6 -2 -10 15

Appendix

282


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0201 AJAX ACHILLES LAKE 492 1.2 22764 3 -2 -2 -3 0 -1 -3 18

486 1.2 262527 3 -6 -7 -8 -6 -3 -11 3


GURRA GURRA LAKES

471 1.5 78987 3 -5 -5 -6 -11 -3 -12 -42


WEST

1048 0.92 17437 3 -2 -2 -2 0 -1 -2 16

S0214 RUMPAGUNYAH CREEK 1039 2 230689 3 -6 -7 -8 -7 -3 -11 -3

1031 2 371340 3 -7 -7 -9 -4 -3 -11 16


PARINGA PADDOCK

1007 0.92 227636 3 -6 -7 -8 -7 -3 -11 -3

1006 0.92 235651 3 -6 -7 -8 -7 -3 -11 -3

S0219 PARINGA ISLAND 997 0.92 12402 3 -1 -1 -1 0 -1 -3 17

996 0.92 39096 3 -2 -2 -3 -4 -2 -14 -19

995 0.92 111272 3 -3 -4 -4 -3 -3 -12 -1

Appendix

283


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0219 PARINGA ISLAND 93 0.92 227075 3 -4 -4 -5 -5 -3 -11 -15

92 0.92 25097 3 -2 -2 -2 -1 -2 -4 16

91 0.92 72376 3 -3 -3 -4 -3 -3 -12 -4

90 0.92 17157 3 -1 -2 -2 0 -1 -3 16

89 0.92 10223 3 -1 -1 -1 0 -1 -2 15


RAL RAL WIDEWATERS

956 2 6785374 3 -4 -4 -6 -8 6 -13 -33

S0227 HORSESHOE SWAMP 69 1.2 327432 3 -4 -4 -5 -4 -3 -11 -4

S0229 WOOLENOOK

BEND COMPLEX

978 1.2 2111925 3 -4 -4 -6 -7 0 -15 -22

84 1.2 29590 3 -2 -2 -2 0 -2 -4 26

82 1.2 41520 3 -2 -2 -3 -6 -2 -14 -39

Appendix

284


Aus

wetland

#

Wetland

name

Wetlands

id

Used

depth

m

Volume

m3

Category

managed

Status Quo

Turbidity

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

25%

Turbidity

Reduction

50%

Turbidity

Reduction

75%

Turbidity

Reduction

S0230 MURTHO PARK

COMPLEX

67 0.92 31733 3 -2 -2 -2 -1 -2 -5 17

61 0.92 24337 3 -2 -2 -2 -1 -2 -4 16

60 0.92 50151 3 -3 -3 -4 -3 -2 -13 -11

47 0.92 250315 3 -4 -4 -5 -6 -3 -11 -23

S0242 SLANEY OXBOW 32 1.25 90869 3 -3 -3 -4 -4 -3 -12 -8

XR001 Lock 6 Wetland 1134 0.92 164860 3 -4 -4 -6 -6 0 -17 -18

Min -9 -9 -12 -12

Max -1 -1 -1 0

Average -5 -5 -7 -6

Median -5 -5 -7 -6

Total -293 -309 -380 -354

Appendix

285

Table 23: PO4-P comparison between Full year wet versus Summer wet Winter dry for three selected wetlands; category 3 wetland scenarios

Net Loading to wetland kg/annum % Reduction in Outflow

Aus wetland

#

Wetland name

Wetlands id

Used depth

Volume m

3

Status Quo Turbidity

25% Turbidity Reduction






Full Year Wet

S0174 LOCH LUNA and NOCKBURRA CREEK

190 2 6146303 589 581 593 597 -25 11 24

S0219 PARINGA ISLAND 93 0.92 227075 343 336 329 324 -18 -33 -44

XR001 Lock 6 Wetland 1134 0.92 164860 364 358 363 364 -28 -6 2

Sum Full Year Wet 1296 1274 1285 1286

Summer Wet; Winter Dry

S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 149 143 151 154 -48 15 36

S0219 PARINGA ISLAND 93 0.92 227075 71 68 70 72 -26 -5 8

XR001 Lock 6 Wetland 1134 0.92 164860 77 73 77 79 -48 4 24

Summer Wet Only 297 284 298 304

Less Loading to

wetland if Summer Wet Only

999 991 986 982

The load to the wetland, for the full year wet scenario, is calculated from the average retention in the scenario time period multiplied by 365. The

load to the wetland, for the summer wet winter dry management scenario, is calculated as a sum from the 88 days simulated in the model to be

the peak macrophyte growth period.

Appendix

286

Table 24: NO3-N comparison between Full year wet versus Summer wet Winter dry for three selected wetlands; category 3 wetland scenarios


Aus wetland

#

Wetland name

Wetlands id

Used depth

Volume m

3








Full Year Wet


190 2 6146303 811 815 842 881 2 17 39

S0219 PARINGA ISLAND 93 0.92 227075 436 416 416 449 -15 -15 9

XR001 Lock 6 Wetland 1134 0.92 164860 475 470 481 499 -5 7 25

Sum Full Year Wet 1722 1700 1740 1830


S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 374 375 393 417 1 30 71

S0219 PARINGA ISLAND 93 0.92 227075 182 173 186 206 -16 8 49

XR001 Lock 6 Wetland 1134 0.92 164860 200 198 208 217 -7 26 54

Summer Wet Only 756 746 787 841

Less Loading to


966 954 953 989




Appendix

287

Table 25: Phytoplankton comparison between Full year wet versus Summer wet Winter dry for three selected wetlands; category 3 wetland scenarios


Aus wetland

#

Wetland name

Wetlands id

Used depth

Volume m

3








Full Year Wet


190 2 6146303 -9.23 -8.57 -11.63 -11.81 3 -12 -13

S0219 PARINGA ISLAND 93 0.92 227075 -3.79 -4.10 -4.87 -5.30 -3 -11 -15

XR001 Lock 6 Wetland 1134 0.92 164860 -4.40 -4.41 -6.13 -6.29 0 -17 -18

Sum Full Year Wet -17 -17 -23 -23


S0174 LOCH LUNA and

NOCKBURRA CREEK

190 2 6146303 -2.34 -1.48 -2.71 -1.99 17 -7 7

S0219 PARINGA ISLAND 93 0.92 227075 -0.87 -0.85 -1.04 -1.01 1 -7 -6

XR001 Lock 6 Wetland 1134 0.92 164860 -0.95 -0.69 -1.43 -1.16 10 -20 -9

Summer Wet Only -4 -3 -5 -4

Less Loading to


13 14 17 19




Appendix

288

Table 26: Change in PO4-P wetland loading and percentage in and outflow due to management; category 4 wetland scenarios

PO4-P Net Loading to Wetland kg/annum % Reduction in Inflow % Reduction in Outflow

Aus

Wetland #

Wetland

name

Used

depth m

Volume

m3

Wetland

Category

Status

Quo Irrigation Drainage

Nutrient

25%

Irrigation Drainage Nutrient

Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

S0035 TAILEM

BEND

0.8 765545 4 7171 7487 7798 8104 0.0070 0.0140 0.0210 6.00 11.90 17.69

S0052 REEDY CREEK

0.8 591799 4 21778 22101 22518 22829 0.0014 0.0027 0.0041 1.23 2.81 3.99

S0148 LITTLE TOOLUNKA FLAT

1.4 739622 4 5088 5454 5727 6218 0.0089 0.0177 0.0266 7.67 13.42 23.70

S0151 RAMCO LAGOON

0.3 279446 4 4974 5015 5557 5861 0.0089 0.0177 0.0266 0.86 11.95 18.18

S0179 KINGSTON

COMMON

0.92 340410 4 5126 5665 5723 6273 0.0082 0.0165 0.0247 9.88 10.96 21.03

S0180 WACHTELS LAGOON

0.92 6259251 4 9140 9200 9259 9317 0.0082 0.0165 0.0247 4.13 8.26 12.37

S0185 YATCO LAGOON

0.5 1729378 4 7585 7798 7973 8110 0.0082 0.0165 0.0247 7.12 12.97 17.54

Min 4974 5015 5557 5861

Max 21778 22101 22518 22829

Average 8694 8960 9222 9530

Median 7171 7487 7798 8104

Total 60861 62720 64555 66712

Appendix

289

Table 27: Change in NO3-N wetland loading and percentage in and outflow due to management; category 4 wetland scenarios

NO3-N Net Loading to Wetland kg/annum % Reduction in Inflow % Reduction in Outflow

Aus

Wetland #

Wetland

name

Used

depth m

Volume

m3

Wetland

Category

Status


Nutrient

25%


Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

S0035 TAILEM

BEND

0.8 765545 4 19038 19102 19166 19230 0.0003 0.0006 0.0009 0.42 0.84 1.26

S0052 REEDY CREEK

0.8 591799 4 3965 4019 4074 4128 0.0007 0.0014 0.0021 0.69 1.38 2.07

S0148 LITTLE TOOLUNKA FLAT

1.4 739622 4 1782 1837 1891 1945 0.0009 0.0017 0.0026 0.51 1.02 1.52

S0151 RAMCO LAGOON

0.3 279446 4 8078 8180 8178 8125 0.0009 0.0017 0.0026 2.31 2.28 1.06

S0179 KINGSTON

COMMON

0.92 340410 4 7484 8196 6421 7977 0.0008 0.0016 0.0024 12.28 -18.31

8.51


0.92 6259251 4 5493 5507 5521 5536 0.0008 0.0016 0.0024 0.19 0.37 0.56

S0185 YATCO LAGOON

0.5 1729378 4 3160 3195 3230 3265 0.0008 0.0016 0.0024 0.35 0.70 1.04

Min 1782 1837 1891 1945

Max 19038 19102 19166 19230

Average 7000 7148 6926 7172

Median 5493 5507 5521 5536

Total 49000 50036 48481 50204

Appendix

290

Table 28: Change in Phytoplankton wetland loading and percentage in and outflow due to management; category 4 wetland scenarios

Phytoplankton Net Loading to Wetland

m3/annum % Reduction in Inflow % Reduction in Outflow

Aus

Wetland #

Wetland

name

Used

depth m

Volume

m3

Wetland

Category

Status


Nutrient

25%


Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

25%


Reduction

50%


Reduction

75%


Reduction

S0035 TAILEM BEND

0.8 765545 4 31 47 63 80 0.0014 0.0029 0.0043 4.13 8.24 12.37

S0052 REEDY CREEK

0.8 591799 4 33 49 65 81 0.0011 0.0022 0.0032 4.08 8.16 12.24

S0148 LITTLE

TOOLUNKA FLAT

1.4 739622 4 33 50 67 83 0.0014 0.0028 0.0042 4.10 8.20 12.28

S0151 RAMCO

LAGOON

0.3 279446 4 87 115 139 159 0.0014 0.0028 0.0042 7.92 14.61 20.12

S0179 KINGSTON COMMON

0.92 340410 4 77 100 123 146 0.0014 0.0027 0.0041 6.04 12.10 18.14


0.92 6259251 4 136 140 143 146 0.0014 0.0027 0.0041 1.05 2.10 3.16

S0185 YATCO

LAGOON

0.5 1729378 4 91 101 110 120 0.0014 0.0027 0.0041 2.63 5.26 7.91

Min 31 47 63 80

Max 136 140 143 159

Average 70 86 101 116

Median 77 100 110 120

Total 487 601 710 815

Appendix E: WETMOD 2 Code (CD) is included with the print copy held in the University of Adelaide

Library.

Tumi Bjornsson Ph.D. Thesis - University of Adelaide · Regional Scale Modelling of the lower River Murray wetlands 216 9 References ... Bowles BA, Powling IJIJ, ... Johnston CA (1991)

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