Geoscience Reference
In-Depth Information
k
83
=
dissolved organic phosphorus mineralization rate constant at 20
°
C [day
−1
]
θ
83
=
dissolved organic phosphorus mineralization temperature coefficient [none]
T
=
water temperature [
°
C]
K
m
PC
=
half-saturation constant for recycle [mg C l
−1
]
C
8
=
organic phosphorus concentration [mg P l
−1
]
G
P
1
=
specific growth rate constant of phytoplankton [day
−1
]
4.1.5.2.2
Phytoplankton Phosphorus
∂
(
Ca
t
)
v
D
4
PC
=
Ga C Da C
−
−
S
4
aC
(4.30)
144144
P
1
PC
4
P
1
PC
4
PC
4
∂
144
Growth
Death
Settling
where
C
4
=
phytoplankton carbon concentration [mg C l
−1
]
a
PC
=
phosphorus to carbon ratio [mg P mg
−1
C]
G
P
1
=
specific growth rate constant of phytoplankton [day
−1
]
D
P
1
=
death plus respiration rate constant of phytoplankton [day
−1
]
V
s
4
=
net settling velocity of phytoplankton [m day
−1
]
D
=
depth of segment [m]
4.1.5.2.3
Organic Phosphorus
∂
()
C
t
C
KC
C
v
(
1
−
f
)
(
T
−
20
)
8
=
Da f C k
−
θ
4
−
S
3
D
8
C
(4.31)
12
443
44
P
1
PC
OP
4
83
83
8
8
∂
+
D
12
443
44
m
Pc
4
12
4444
4444
3
Death
Settling
Mineralization
where
C
8
=
organic phosphorus concentration [mg P l
−1
]
D
P
1
=
death plus respiration rate constant of phytoplankton [day
−1
]
a
PC
=
phosphorus to carbon ratio [mg P mg
−1
C]
f
OP
=
fraction of dead and respired phytoplankton recycled to the organic
phosphorus pool [none]
C
4
=
phytoplankton carbon concentration [mg C l
−1
]
k
83
=
dissolved organic phosphorus mineralization constant at 20
°
C [day
−1
]
θ
83
=
dissolved organic phosphorus mineralization temperature coefficient [none]
T
=
water temperature [
°
C]
K
m
Pc
=
half-saturation constant for recycle [mg C l
−1
]
V
S
3
=
organic matter settling velocity [m day
−1
]
f
D
8
=
fraction dissolved organic phosphorus [none]
1
−
f
D
8
=
fraction particulate organic phosphorus [none]
D
=
depth of segment [m]
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