Exploration of Runoff-Generating Pattern in Typical Watersheds of Shandong Peninsula Based on Hydrological Models
To clarify the runoff-generating pattern in semi humid region,taking Longjiaoshan reservoir in Shandong Peninsula as a case study,the Xin'anjiang model and vertical mixed runoff model were chosen to explore the runoff-generating pattern by 28 sessions of flood data.The results shows that:(1)the vertical mixed runoff model achieves the average qualification rate of 81.7％and 91.7％for all fore-cast items during the calibration and validation periods,reaching Class A accuracy,and demonstrating high conformity in simulating peak flow processes.(2)The Xin'anjiang model attaineds the average qualification rate of 73.3％and 83.3％for all forecast items during the calibration and validation periods,achieving Class B accuracy,and demonstrating good conformity in simulating recession processes.This study shows that the applicability of the mixed runoff model in Longjiaoshan Reservoir Basin is superior to the saturation excess runoff model,contributing to a better understanding of runoff-generating pattern in the semi-humid regions of the Shandong Peninsula.
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