| 变量 | 时期 | 1954 | 1981 | 1982 | 1998 | 平均削减量 |
| Qmax (m³/s) | 建设期 | 99,208 | 101,000 | 99,300 | 98,800 | 11477 |
| 综合影响期 | 83,064 (−16.3%) | 10,100(−0%) | 83,959 (−15.4%) | 84,375 (−14.6%) | ||
| W3d (亿m³) | 建设期 | 247.0 | 251.1 | 239.0 | 247 | 30.2 |
| 综合影响期 | 195.0 (−21.1%) | 229.9(−8.4%) | 217.5 (−9.0%) | 221.1 (−10.5%) | ||
| W7d (亿m³) | 建设期 | 486.8 | 489.2 | 489.0 | 486.9 | 64.4 |
| 综合影响期 | 404.5 (−16.9%) | 425.4(−13.0%) | 419.1 (−14.3%) | 445.4 (−8.5%) | ||
| W15d (亿m³) | 建设期 | 911.8 | / | 910.6 | 912 | 121.6 |
| 综合影响期 | 764.8 (−16.1%) | / | 788.6 (−13.4%) | 816.1 (−10.5%) | ||
| W30d (亿m³) | 建设期 | 1590.0 | / | 1589.8 | 1590.2 | 191.2 |
| 综合影响期 | 1393.2 (−12.4%) | / | 1406.1 (−11.6%) | 1397.1 (−12.1%) |