The VIC model combined with a new surface runoff parameterization, which takes into account the effects of soil heterogeneity on Horton and Dunne runoff, is applied to runoff simulation over the mainland area of China.

• VIC模型中新的地表径流参数化方案考虑了蓄满产流、超渗产流机制，以及土壤性质非均匀性对产流的影响。