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符号 | 时段 (年) | 降水量 (mm) | 径流系数 (万m3/mm) | 产沙系数 (万t/mm) | 降水量 (mm) | 径流系数 (万m3/mm) | 产沙系数 (万t/mm) | 降水量 (mm) | 径流系数 (万m3/mm) | 产沙系数 (万t/mm) | 降水量 (mm) | 径流系数 (万m3/mm) | 产沙系数 (万t/mm) |
A | 1956~1969 | 110.3 | 830 | 340 | 122.4 | 1320 | 363 | 71.9 | 860 | 135 | 30.8 | 2400 | 84 |
B | 1970~1979 | 102.1 | 680 | 230 | 111 | 970 | 334 | 62.8 | 940 | 107 | 26.2 | 1030 | 76 |
C | 1980~1989 | 98.1 | 420 | 120 | 88.7 | 700 | 161 | 53.1 | 340 | 64 | 23.3 | 1850 | 60 |
D | 1990~1999 | 103.3 | 540 | 140 | 92.5 | 810 | 200 | 44.3 | 1220 | 120 | 22.3 | 1610 | 27 |
E | 2000~2010 | 79.3 | 430 | 54 | 103.4 | 440 | 54 | 80.6 | 600 | 29 | 29.2 | 1370 | 17 |
F | 1950~1999 | 104.1 | 640 | 220 | 105.9 | 1020 | 284 | 59.3 | 840 | 111 | 26.1 | 1840 | 65 |
G | 1950~2010 | 99.1 | 600 | 188 | 105.4 | 900 | 238 | 63.6 | 790 | 95 | 26.7 | 1750 | 56 |
B/A |
| 0.926 | 0.81 | 0.678 | 0.907 | 0.735 | 0.921 | 0.873 | 1.09 | 0.791 | 0.851 | 0.429 | 0.904 |
C/A |
| 0.889 | 0.501 | 0.364 | 0.725 | 0.528 | 0.444 | 0.739 | 0.393 | 0.475 | 0.756 | 0.768 | 0.712 |
D/A |
| 0.937 | 0.65 | 0.403 | 0.778 | 0.611 | 0.55 | 0.616 | 1.416 | 0.887 | 0.724 | 0.672 | 0.319 |
E/A |
| 0.719 | 0.514 | 0.161 | 0.845 | 0.336 | 0.149 | 1.121 | 0.691 | 0.212 | 0.948 | 0.57 | 0.203 |
E/B |
| 0.777 | 0.634 | 0.238 | 0.932 | 0.457 | 0.162 | 1.283 | 0.634 | 0.267 | 1.115 | 1.329 | 0.224 |
E/C |
| 0.808 | 1.026 | 0.443 | 1.166 | 0.636 | 0.336 | 1.518 | 1.757 | 0.446 | 1.253 | 0.742 | 0.285 |
E/D |
| 0.768 | 0.791 | 0.4 | 1.086 | 0.55 | 0.271 | 1.819 | 0.489 | 0.239 | 1.309 | 0.849 | 0.636 |
E/F |
| 0.762 | 0.666 | 0.245 | 0.976 | 0.436 | 0.191 | 1.359 | 0.706 | 0.256 | 1.119 | 0.745 | 0.263 |