Table S3.
Lake carbon efflux by two-digit HUC
| Two-digit HUC | Lake area, km2 | Lake surface flux, TgC⋅y−1 | Lake surface yields, gC⋅m−2⋅y−1 |
| 01 | 6,179 | 0.66 (0.17–0.21) | 106.34 (78.76–140.54) |
| 02 | 4,040 | 0.6 (0.27–0.47) | 148.69 (80.83–265.25) |
| 03 | 15,702 | 2.51 (0.86–1.24) | 159.87 (104.84–238.62) |
| 04 | 7,246 | 1.1 (0.3–0.4) | 152.13 (110.2–207.36) |
| 05 | 3,431 | 0.43 (0.13–0.2) | 125.22 (87.82–184.55) |
| 06 | 2,722 | 0.24 (0.2–0.36) | 89.48 (16.24–220.02) |
| 07 | 11,156 | 0.72 (0.27–0.39) | 64.11 (40.19–99.37) |
| 08 | 10,014 | 2.31 (0.85–1.14) | 230.34 (145.53–343.7) |
| 09 | 7,940 | 1.12 (0.48–1.03) | 141.66 (81.57–270.98) |
| 10 | 15,703 | 1.15 (0.25–0.28) | 73.38 (57.54–91.44) |
| 11 | 8,295 | 1.81 (0.41–0.5) | 218.43 (169.04–278.23) |
| 12 | 8,984 | 2.01 (0.74–1.28) | 223.33 (140.59–365.59) |
| 13 | 1,313 | 0.14 (0.1–0.15) | 107.04 (32.08–222.06) |
| 14 | 1,755 | 0.09 (0.06–0.1) | 51.68 (15.02–109.2) |
| 15 | 1,372 | 0.07 (0.04–0.06) | 47.61 (15.49–87.76) |
| 16 | 7,951 | 0.49 (0.26–0.28) | 61.47 (28.97–96.84) |
| 17 Coast | 1,133 | 0 (0–0) | 18.84 (0.93–43.89) |
| 17 Dry | 6,210 | 0.1 (0–0.3) | 18.84 (0.93–43.89) |
| 18 Dry | 6,006 | 0.4 (0.1–0.9) | 74.5 (24.47–155.72) |
| Total | 127,151 | 16.0 (14.3–18.7) | 111.21 (64.79–182.37) |
Lake surface area was determined by the NHD by HUC. Total carbon flux is calculated according to (17). Errors in parentheses represent the fifth and 95th confidence intervals around the mean.