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 | 141.8 | 30.3 | 0.87 | 2136.8 | 61.3 | 28.7 |
1970~1979 | B | 126.3 | 25.1 | 0.63 | 1987.3 | 49.9 | 25.1 |
1980~1989 | C | 153.6 | 20.7 | 0.61 | 1347.7 | 39.7 | 29.5 |
1990~1999 | D | 138 | 20.6 | 0.81 | 1492.8 | 58.7 | 39.3 |
2000~2010 | E | 139.9 | 15.8 | 0.36 | 1129.4 | 25.7 | 22.7 |
1956~1999 | F | 140.2 | 24.6 | 0.75 | 1754.6 | 53.5 | 30.5 |
1956~2010 | G | 140.14 | 22.84 | 0.672 | 1629.8 | 48.0 | 28.9 |
| B/A | 0.891 | 0.828 | 0.724 | 0.930 | 0.813 | 0.874 |
| C/A | 1.083 | 0.683 | 0.701 | 0.631 | 0.647 | 1.026 |
| D/A | 0.973 | 0.680 | 0.931 | 0.699 | 0.957 | 1.369 |
| E/A | 0.987 | 0.521 | 0.414 | 0.529 | 0.419 | 0.794 |
| E/B | 1.108 | 0.629 | 0.571 | 0.568 | 0.516 | 0.908 |
| E/C | 0.911 | 0.763 | 0.590 | 0.838 | 0.648 | 0.773 |
| E/D | 1.014 | 0.767 | 0.444 | 0.757 | 0.438 | 0.579 |
| E/F | 0.998 | 0.642 | 0.48 | 0.644 | 0.481 | 0.747 |