Distributed hydrological simulation and runoff variation analysis for the upper basin of Songhua River
This paper develops a distributed hydrological model,namely geomorphology based hydrological model (GBHM),for the upper basin of the Songhua River to simulate the runoff variations.This model was calibrated and validated by using the observed monthly runoff at the gauge stations of Fuyu,Wudaogou and Dehui during 1981-1990,and its prediction runs were used for the runoff of 1991-2000.And the runoff model was combined with a "fixing-changing" method to analyze the relative contributions of the landuse change and climate variation to runoff changes.The results show that both the average annual precipitation and runoff during 1991-2000 were less than those during 1981-1990 and the contribution of climate variation is greater than that of landuse change.
hydrological modelingGBHMthe upper basin of Songhua rivercontribution rate
国家科技期刊平台
NSTL
万方数据
维普
