2012年7月2日6时,王家坝水文站水位17.58m,创下了60年来的历史最低水位。本文利用王家坝站的历史资料,对王家坝2012年出现最低水位的原因进行初步分析,结果表明,降雨量及上游来水量偏少是王家坝水位偏低的主要原因,同时王家坝低水位也与河道治理、冲刷、采砂,河槽下切导致相同流量相应水位偏低及上游水利工程调度有密切关系。 At 6:00 on July 2, 2012, the water level at Wangjiaba Hydrological Station was 17.58m, setting a record low for 60 years. Based on the historical data of Wangjiaba Station, this paper makes a preliminary analysis of the reasons for the lowest water level of Wangjiaba in 2012. The results show that the rainfall and the inflow of upstream water are the main reasons for the low water level of Wangjiaba, meanwhile, And river management, erosion, sand mining, river channel undercutting lead to the same low water level corresponding to the flow and the upstream water conservancy project scheduling are closely related.