The ID number at the beginning of 3708 1 1 represents the birth account of rencheng district, Jining City. Rencheng district and rencheng district belong to Huaihe River system and Nansihu River basin. Ji Liang Canal runs through the north and south, and the east of the canal flows from northeast to southwest, all of which are mountain torrents. The canal flows from west to east, which is a plain river. Sihe River, Fuhe River and Ji Liang Canal flow into Nanyang Lake on three sides, and the interval Xingfu River flows into Nanyang Lake.