Analysis on Characteristics of the Rainfall-Runoff in Beizhangdian Watershed
Beizhangdian watershed is a typical semi-dry and semi-humid region, where human activities have little effect on the hydrological cycle. Based on a 30-year hydrological observation data, the precipitation, runoff, and rainfall-runoff relationship were researched by the hydrology statistics analysis methods. The results indicated that the inter-annual change of rainfall-runoff of the watershed is remarkable, the annual distribution of rainfall-runoff is extremely uneven, and rainfall-runoff mainly occurred in flood season (June ~ September). There is a good uniformity between the variation tendency of annual rainfall and annual runoff in time and amount, the correlation coefficient of rainfall and runoff is 0.74, the value of the F-test is 4.23.
R. Liang et al., "Analysis on Characteristics of the Rainfall-Runoff in Beizhangdian Watershed", Applied Mechanics and Materials, Vols. 90-93, pp. 2578-2582, 2011