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Regional Scale Modelling of the lower River Murray wetlands
216
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1421-1438.
Regional Scale Modelling of the lower River Murray wetlands
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Walker KF, Hillman TJ (1982) Phosphorus and Nitrogen Loads in Waters Associated
with the River Murray near Albury-Wodonga, and their Effects on Phytoplankton
Populations. Australian Journal of Marine and Freshwater Research 33, 223-243.
Walker KF, Thoms MC (1993) Environmental Effects of Flow Regulation on the
Lower River Murray, Australia. Regulated Rivers: Research and Management 8, 103-
119.
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model prediction error. Ecological Modelling 105, 337-345.
Webster IT, Maier H, Baker P, Burch M (1997) Influence of wind on water levels and
lagoon-river exchange in the River Murray, Australia. Marine & Freshwater
Research 48, 541-550.
Wen L (2002a) Mechanisms for Phosphorus Elimination in Constructed Wetlands: A
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.
Wen L (2002b) Personal Communication,
Wen L, Recknagel F (2002) In situ removal of dissolved phosphorus in irrigation
drainage water by planted floats: preliminary results from growth chamber
experiment. Agriculture, Ecosystems and Environment 90, 9-15.
Weymouth G, Le Marshall J (1994) An operational system to estimate insolation over
the Australian region. In 'Proc. Pacific Ocean Remote Sensing Conference'.
Melbourne, Australia 1-4 Mar 1994 pp. 443-449. (Bureau of Meteorology Research
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Wood SN (2001) Partially Specified Ecological Models. Ecological Monographs 71,
1-25.
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flows decision support system. Environmental Modelling & Software 15, 257-265.
Regional Scale Modelling of the lower River Murray wetlands
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
Regional Scale Modelling of the lower River Murray wetlands
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
Parameters Units Source
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
3/d (Asaeda et al. 1997)
pht_pref = 2.5 dimless (Recknagel et al. 1982)
pht_resp_rate = 0.047 cm3/m
3/d (Asaeda et al. 1997)
pht_sed_1 = if Turbidity >TurbSed_pht
then 0.1 else 0.01
pht_sed_2 = if Turbidity >TurbSed_pht
then 0.05 else 0.01
pht_sed_3 = if Turbidity >TurbSed_pht
then 0.05 else 0.01
pht_sed_4 = if Turbidity >TurbSed_pht
then 0.5 else 0.2
pht_sed_5 = if Turbidity >TurbSed_pht
then 0.5 else 0.2
pht_sed_6 = if Turbidity >TurbSed_pht
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
Model terms Definition
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)
Parameters Units Source
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
N_sed_2 = if Turbidity>TurbSedN
then 0.15 else 0.12
N_sed_3 = if Turbidity>TurbSedN
then 0.5 else 0.1
N_sed_4 = if Turbidity>TurbSedN
then 0.5 else 0.2
N_sed_5 = if Turbidity>TurbSedN
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
P_sed_2 = if Turbidity>TurbSedP then
0.15 else 0.12
P_sed_3 = if Turbidity>TurbSedP then
0.5 else 0.1
P_sed_4 = if Turbidity>TurbSedP then
0.5 else 0.2
P_sed_5 = if Turbidity>TurbSedP then
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
Model terms Definition
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
Equations/Rules Description/definition
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)
ELSE(IF(IrrigationDrainage=2)
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 =
IF(Drainage_Channel_multiplication_Factor=0)
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
the seasonal flow pattern.
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
Equations/Rules Description/definition
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)
Calculates inflow load
from the concentration
and flow volume
NDrainLoad_SunnyORPaiw =
IF(Category_Time_Series_Used=1)THEN(NDrainLoa
d_Paiwalla)
ELSE(IF(Category_Time_Series_Used=2)
THEN(NDrainLoad_Sunnyside) ELSE(0))
Select the appropriate
drain load for either
Sunnyside or Paiwalla
wetlands.
NDrainLoad = (IF(IrrigationDrainage=1)
THEN(NDrainLoad_SunnyORPaiw)/100
ELSE(IF(IrrigationDrainage=2)
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
used in the simulation.
This is where the load is
reduced as per potential
management strategy.
N_Drain_Water_Inflow =
IF(Drainage_Channel_multiplication_Factor=0)
THEN(NDrainLoad/Wetlandvolume_Liters)
ELSE((NDrainLoad/Wetlandvolume_Liters)*(Drainag
e_Channel_multiplication_Factor*Seasonal_Flow_Pat
tern_SunnyORReedy))
Calculates the dispersal
of inflow load into the
wetland, i.e. to obtain
concentration.
Fits the concentration to
the seasonal flow pattern.
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
function of the wetland
volume of NO3-N from
the wetland.
Appendix
250
Equations/Rules Description/definition
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
me_Liters_perDay_Sunnyside) ELSE(0)
PDrainLoad_Paiwalla =
IF(Paiwalla_P_Drain_mg_perL>0)
THEN(Paiwalla_P_Drain_mg_perL*DrainFlowVolu
me_Liters_perDay_Sunnyside) ELSE(0)
Calculates inflow load
from the concentration
and flow volume
PDrainLoad_SunnyORPaiw =
IF(Category_Time_Series_Used=1)THEN(PDrainLoa
d_Paiwalla)
ELSE(IF(Category_Time_Series_Used=2)
THEN(PDrainLoad_Sunnyside) ELSE(0))
Select the appropriate
drain load for either
Sunnyside or Paiwalla
wetlands.
PDrainLoad = ((IF(IrrigationDrainage=1)
THEN(PDrainLoad_SunnyORPaiw)/100
ELSE(IF(IrrigationDrainage=2)
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
used in the simulation.
This is where the load is
reduced as per potential
management strategy.
P_Drain_Water_Inflow =
IF(Drainage_Channel_multiplication_Factor=0)
THEN(PDrainLoad/Wetlandvolume_Liters)
ELSE((PDrainLoad/Wetlandvolume_Liters)*(Drainag
e_Channel_multiplication_Factor*Seasonal_Flow_Pat
tern_SunnyORReedy))
Calculates the dispersal
of inflow load into the
wetland, i.e. to obtain
concentration.
Fits the concentration to
the seasonal flow pattern.
PInflowAmount_mgL =
((Hypothetical_Inflow_Liters*PRiver_mgL)/Wetlandv
olume_Liters)+P_Drain_Water_Inflow
Calculates the inflow
concentration as a
function of the wetland
volume of PO4-P into the
wetland.
POutflow_Amount_gL =
(PO4P*Hypothetical_Outflow_Liters)/(Wetlandvolum
e_Liters)
Calculates the outflow
concentration as a
function of the wetland
volume of PO4-P from
the wetland
Appendix
251
$Wetland&RiverFlowExchange
Equations/Rules Description/definition
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
Figure 75: Data - Model Driving Variables; From Figure 9 in section 2.3
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
Wate r T e mpe rature
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
Figure 76: Data - Model Driving Variables; From Figure 9 in section 2.3
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
Wate r T e mpe rature
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
Figure 81: River Data; From Figure 11 in section 2.3.2
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
Figure 82: River Data; From Figure 11 in section 2.3.2
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
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
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
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
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
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
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
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
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
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
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
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
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
S0111 MURBPOOK LAGOON
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
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
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
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
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
S0203 SALT CREEK AND
GURRA GURRA LAKES
471 1.5 78987 3 508 445 451 831 -16 -15 84
S0207 LYRUP CAUSEWAY
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
S0218 GOAT ISLAND AND
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
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
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
S0220 RAL RAL CREEK AND
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
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
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
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
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
S0111 MURBPOOK LAGOON
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
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
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
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
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
S0203 SALT CREEK AND
GURRA GURRA LAKES
471 1.5 78987 3 -5 -5 -6 -11 -3 -12 -42
S0207 LYRUP CAUSEWAY
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
S0218 GOAT ISLAND AND
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
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
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
S0220 RAL RAL CREEK AND
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
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
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
50% Turbidity Reduction
75% Turbidity Reduction
25% Turbidity Reduction
50% Turbidity Reduction
75% 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
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
50% Turbidity Reduction
75% Turbidity Reduction
25% Turbidity Reduction
50% Turbidity Reduction
75% Turbidity Reduction
Full Year Wet
S0174 LOCH LUNA and NOCKBURRA CREEK
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
Summer Wet; Winter Dry
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
wetland if Summer Wet Only
966 954 953 989
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
287
Table 25: Phytoplankton 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
50% Turbidity Reduction
75% Turbidity Reduction
25% Turbidity Reduction
50% Turbidity Reduction
75% Turbidity Reduction
Full Year Wet
S0174 LOCH LUNA and NOCKBURRA CREEK
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
Summer Wet; Winter Dry
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
wetland if Summer Wet Only
13 14 17 19
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
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%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
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
Quo Irrigation Drainage
Nutrient
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
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
S0180 WACHTELS LAGOON
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
Quo Irrigation Drainage
Nutrient
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
Reduction
25%
Irrigation Drainage Nutrient
Reduction
50%
Irrigation Drainage Nutrient
Reduction
75%
Irrigation Drainage Nutrient
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
S0180 WACHTELS LAGOON
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.