Table 1 Temporal correlation analysis of daily pCO2 and fCO2 in Bailuwan lake (n = 4). x, time; y1, pCO2; y2, fCO2; r2, regression coefficients.
From: High-frequency monitoring reveals a CO2 source-sink shift in a subtropical eutrophic urban lake
Sampling date | pCO2 (y1 = b0×eb1 x) | fCO2 (y2 = b0′x + b1′) | ||||
|---|---|---|---|---|---|---|
b0 | b1 | r2 | b0′ | b1′ | r2 | |
Oct. 30, 2020 | 351.70 | −0.25 | 0.98 | −3.86 | −6.48 | 0.92 |
Dec. 20, 2020 | 1453.40 | −0.38 | 0.13 | −32.81 | 148.22 | 0.08 |
Jan. 20, 2021 | 736.99 | −0.15 | 0.89 | −5.87 | 23.26 | 0.91 |
Feb. 28, 2021 | 1387.80 | 0.01 | 0.04 | 20.17 | 59.04 | 0.60 |
Mar. 30, 2021 | 196.87 | 0.16 | 0.20 | 6.00 | −21.20 | 0.30 |
Apr. 29, 2021 | 3721.30 | −0.42 | 0.75 | −41.06 | 192.16 | 0.62 |
May 28, 2021 | 3701.10 | −0.28 | 0.92 | −43.60 | 233.85 | 0.83 |
Jun. 28, 2021 | 2743.00 | −0.20 | 0.83 | −15.84 | 167.16 | 0.23 |
Jul. 31, 2021 | 1808.60 | −0.15 | 0.30 | −19.96 | 133.40 | 0.34 |
Aug. 30, 2021 | 1744.50 | −0.19 | 0.19 | −29.61 | 147.60 | 0.32 |
Oct. 19, 2021 | 18055.00 | −0.47 | 0.34 | −293.32 | 1508.50 | 0.19 |
Nov. 22, 2021 | 1675.30 | 0.04 | 0.19 | 9.86 | 102.47 | 0.32 |
