时段(年) | 符号 | 降水量(mm) | 径流量(亿m3) | 输沙量(亿t) | 径流系数(万m3/mm) | 产沙系数(万t/mm) | 含沙量(kg/m3) |
1956~1969 | A | 477.2 | 69.3 | 10.25 | 1452.2 | 214.8 | 147.9 |
1970~1979 | B | 428.4 | 51.4 | 7.54 | 1199.8 | 176.0 | 146.7 |
1980~1989 | C | 416.8 | 37.1 | 3.72 | 890.1 | 89.3 | 100.3 |
1990~1999 | D | 403.1 | 42.9 | 4.7 | 1064.2 | 116.6 | 109.6 |
2000~2010 | E | 432.4 | 32.6 | 1.63 | 753.9 | 37.7 | 50 |
1956~1999 | F | 435.6 | 51.9 | 6.89 | 1191.4 | 158.2 | 132.8 |
1956~2010 | G | 434.96 | 48.04 | 5.838 | 1104.4 | 134.2 | 116.2 |
| B/A | 0.898 | 0.742 | 0.736 | 0.826 | 0.819 | 0.992 |
| C/A | 0.873 | 0.535 | 0.363 | 0.613 | 0.416 | 0.678 |
| D/A | 0.845 | 0.619 | 0.459 | 0.733 | 0.543 | 0.741 |
| E/A | 0.906 | 0.470 | 0.159 | 0.519 | 0.176 | 0.338 |
| E/B | 1.009 | 0.634 | 0.216 | 0.628 | 0.214 | 0.341 |
| E/C | 1.037 | 0.879 | 0.438 | 0.847 | 0.422 | 0.499 |
| E/D | 1.072 | 0.760 | 0.347 | 0.708 | 0.323 | 0.456 |
| E/F | 0.993 | 0.628 | 0.237 | 0.633 | 0.238 | 0.377 |