Table 4 Spearman correlation analysis results of monthly mean surface water carbon variables and various water quality parameters
From: Carbon pool trends and dynamics within a subtropical peatland during long-term restoration
Parameter | WCA-1 | WCA-2 | WCA-3 | |
|---|---|---|---|---|
Dissolved inorganic carbon | Stage elevation | 0.19 (0.14) | − 0.25 (0.06) | − 0.49 (< 0.01) |
Water temperature | 0.06 (0.63) | − 0.31 (<0.01) | − 0.57 (< 0.01) | |
Total phosphorus | 0.39 (< 0.01) | 0.34 (< 0.05) | − 0.23 (0.07) | |
Total nitrogen | 0.62 (< 0.01) | 0.65 (< 0.01) | 0.59 (< 0.01) | |
Specific conductance | 0.74 (< 0.01) | 0.67 (< 0.01) | 0.65 (< 0.01) | |
Dissolved organic carbon | Stage elevation | 0.07 (0.61) | − 0.33 (< 0.05) | − 0.28 (< 0.05) |
Water temperature | − 0.08 (0.52) | − 0.14 (0.30) | − 0.03 (0.79) | |
Total phosphorus | 0.25 (0.05) | 0.38 (< 0.01) | 0.009 (0.95) | |
Total nitrogen | 0.78 (< 0.01) | 0.67 (< 0.01) | 0.72 (< 0.01) | |
Specific conductance | 0.74 (< 0.01) | 0.52 (< 0.01) | 0.60 (< 0.01) | |
Particulate organic carbon | Stage elevation | − 0.23 (0.10) | − 0.007 (0.96) | 0.14 (0.28) |
Water temperature | − 0.15 (0.26) | − 0.12 (0.37) | − 0.18 (0.18) | |
Total phosphorus | 0.08 (0.55) | 0.40 (< 0.01) | 0.37 (< 0.01) | |
Total nitrogen | 0.19 (0.16) | 0.17 (0.23) | − 0.11 (0.41) | |
Specific conductance | 0.30 (< 0.05) | 0.04 (0.79) | − 0.32 (< 0.05) | |
pCO2(aq) | Stage elevation | − 0.05 (0.20) | 0.25 (0.06) | 0.19 (0.14) |
Water temperature | 0.25 (0.05) | 0.35 (< 0.01) | 0.21 (0.10) | |
Total phosphorus | 0.30 (< 0.05) | 0.48 (< 0.01) | 0.22 (0.09) | |
Total nitrogen | 0.22 (0.10) | 0.08 (0.51) | 0.09 (0.48) | |
Specific conductance | 0.12 (0.38) | 0.02 (0.91) | − 0.13 (0.31) |