Environmental Engineering Reference
In-Depth Information
mass transfer rate of NO
3
R
NO3,e
between the upper soil layer and surface
runoff [M/L
2
/T]
infiltration rate of soil layer NO
3
pool [M/L
2
/T]
R
NO3,f
external sources [M/L
2
/T]
NO
s
concentration of the overland flow PON [M/L
3
]
PON
ov
total concentration of organic N in the upper soil layer [M/L
3
]
orgN
k
hn
PON hydrolysis rate constant [1/T]
concentration of DON in the overland flow [M/L
3
]
DON
ov
k
mn
DON mineralization rate constant [1/T]
NH
4 ov
concentration of NH
4
in the overland flow [M/L
3
]
k
en
effective mass transfer rate constant [L/T]
k
nit
nitrification rate constant [1/T]
R
NH4,up
plant uptake rate of the overland flow NH
4
[M/L
3
/T]
NO
3 ov
concentration of NO
3
in the overland flow [M/L
3
]
plant uptake rate of the overland flow NO
3
[M/L
3
/T]
R
NO3,up
concentration of soil layer fresh organic P pool [M/L
3
]
orgP
frs
decomposition rate of soil layer fresh organic P pool [M/L
2
/T]
OP
dec
OP
min|imb
net mineralization/immobilization rate of soil layer fresh organic P
pool [M/L
2
/T]
OP
frs,e
net surface erosion/deposition rate of soil fresh organic P pool
[M/L
2
/T]
external sources [M/L
2
/T]
OP
frs,s
concentration of soil layer active organic P pool [M/L
3
]
orgP
act
mineralization rate of soil humic active organic P pool [M/L
2
/T]
OP
min
OP
trn
rate transferred between the active and stable organic P pools
[M/L
2
/T]
OP
act,e
net surface erosion/deposition rate of soil humic active organic P pool
[M/L
2
/T]
external sources [M/L
2
/T]
OP
act,s
concentration of soil layer stable organic P pool [M/L
3
]
orgP
sta
OP
sta,e
net surface erosion/deposition rate of soil humic stable organic P pool
[M/L
2
/T]
external sources [M/L
2
/T]
OP
sta,s
concentration of soil layer soluble P pool [M/L
3
]
P
sol
IP
min
total mineralization processes rate of soil layer organic P pools
[M/L
2
/T]
IP
sol|act
net sorption rate transferred between the soluble P pool and active
inorganic P pool [M/L
2
/T]
plant uptake rate of soil layer soluble P pool [M/L
2
/T]
IP
up
R
DIP,e
mass transfer rate of soluble P between the upper soil layer and
surface runoff [M/L
2
/T]
external sources [M/L
2
/T]
IP
s
concentration of soil layer active inorganic P pool [M/L
3
]
minP
act
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