Table 1 Elevation of survey frames in the Poyang Lake region of China
Elevation grading (m) | South Poyang Lake | North Poyang Lake | Total | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Frequency | Composition ratio (%) | Max. (m) | Min. (m) | Frequency | Composition ratio (%) | Max. (m) | Min. (m) | Frequency | Composition ratio (%) | Max. (m) | Min. (m) | |
5.0–5.9 | 10 | 0.31 | 5.9 | 5.0 | 10 | 0.07 | 5.9 | 5.0 | ||||
6.0–6.9 | 3 | 0.09 | 6.0 | 6.0 | 3 | 0.02 | 6.0 | 6.0 | ||||
7.0–7.9 | 3 | 0.09 | 7.9 | 7.0 | 3 | 0.02 | 7.9 | 7.0 | ||||
8.0–8.9 | 22 | 0.68 | 8.8 | 8.1 | 22 | 0.15 | 8.8 | 8.1 | ||||
9.0–9.9 | 19 | 0.16 | 9.8 | 9.0 | 147 | 4.58 | 9.8 | 9.0 | 166 | 1.10 | 9.8 | 9.0 |
10.0–10.9 | 254 | 2.13 | 10.8 | 10.0 | 619 | 19.27 | 10.8 | 10.0 | 873 | 5.77 | 10.8 | 10.0 |
11.0–11.9 | 2030 | 17.02 | 11.9 | 11.0 | 1048 | 32.63 | 11.8 | 11.0 | 3078 | 20.33 | 11.9 | 11.0 |
12.0–12.9 | 3542 | 29.70 | 12.9 | 12.0 | 747 | 23.26 | 12.8 | 12.0 | 4289 | 28.33 | 12.9 | 12.0 |
13.0–13.9 | 2685 | 22.52 | 13.9 | 13.0 | 329 | 10.24 | 13.8 | 13.0 | 3014 | 19.91 | 13.9 | 13.0 |
14.0–14.9 | 2617 | 21.95 | 14.9 | 14.0 | 216 | 6.72 | 14.8 | 14.0 | 2833 | 18.72 | 14.9 | 14.0 |
15.0–15.9 | 660 | 5.53 | 15.8 | 15.0 | 42 | 1.31 | 15.8 | 15.0 | 702 | 4.64 | 15.8 | 15.0 |
16.0–16.9 | 69 | 0.58 | 16.8 | 16.0 | 14 | 0.44 | 16.7 | 16.0 | 83 | 0.55 | 16.8 | 16.0 |
17.0–17.9 | 28 | 0.23 | 17.8 | 17.0 | 5 | 0.16 | 17.7 | 17.0 | 33 | 0.22 | 17.8 | 17.0 |
18.0–18.9 | 20 | 0.17 | 18.8 | 18.0 | 5 | 0.16 | 18.7 | 18.0 | 25 | 0.17 | 18.8 | 18.0 |
19.0–19.9 | 1 | 0.01 | 19.7 | 19.7 | 2 | 0.06 | 19.7 | 19.1 | 3 | 0.02 | 19.7 | 19.1 |
合计 | 11 925 | 100.00 | 19.7 | 9.0 | 3212 | 100.00 | 19.7 | 5.0 | 15 137 | 100.00 | 19.7 | 5.0 |