Statistical Characteristics of the Drought and Waterlogging in Jinqu Basin

According to the historical data of the drought and waterlogging of 527 years, this paper gives some statistical characteristics of the drought and waterlogging in Jinqu Basin as follows: (1) the 17th century is a frequent period occurred the drought and waterlogging in Jinqu Basin; (2) there are different period of the drought and waterlogging; (3) the drought and waterlogging has structure of time fractal; (4) the drought and waterlogging respond well to the sunspot action and the El Niño event.