245
Table 8.3 Correlation coefficients (R) between air–water CO
2 flux and other parameters
x
1
x
2
x
3
x
4
x
5
x
6
x
7
x
8
x
9
x
10
x
1
Air–sea flux
1
x
2
Air–sediment
flux
0.12
1
x
3
Photon
density flux
−0.50
**
−0.21 1
x
4
Water
temperature
0.25
*
−0.40
**
0.41
**
1
x
5
Salinity
−0.18
0.17
−0.07 −0.35
1
x
6
pH
−0.34
**
−0.06 0.51
**
0.00
−0.09
1
x
7
Fluorescence
intensity of
Chl.a
0.22
−0.09 0.30
0.64
**
−0.65
**
−0.02
1
x
8
Dissolved
inorganic
carbon
−0.28
*
0.02
−0.37
*
−0.78
**
0.68
**
0.03
−0.69
**
1
x
9
pCO
2 of
water
0.48
**
−0.11 −0.50
**
0.07
−0.16 −0.95
**
0.35 0.09 1
x
10
ΔpCO 2
0.44
**
−0.09 −0.51
**
0.01
−0.19 −0.95
**
0.35 0.10 0.99
**
1
R
values between 0.4 and 0.7 indicate moderately strong relationships and R
values greater than 0.7 indicate very strong relationships
*
P < 0.01;
**
P < 0.005
8 CO 2 Flux in Tidal Flats and Salt Marshes