CONSTRUCTION OF FLOOD DIVERSION AND STORAGE AREAS IN THE MIDDLE REACH OF THE YANGTZE RIVER IN THE LIGHT OF GEOLOGY REGULARITY AND SUSTAINABLE DEVELOPMENT

Flood diversion and storage areas are very important to flood control. In 1950's, we have founded 14 flood diversion and storage areas in the middle reach of the Yangtze River,in which,Jingjiang,Honghu,and Dujiatai are the three most important flood diversion and storage areas. But,with a series of great power plants, such as Three-Gorges Project, constructed, and project of strengthen dam took into practice,the middle reach of the Yangtze River need more 200×10~8m~3flood storage capability for flood diversion and storage areas.Based on geology regularity and flood control reality of the middle reach of the Yangtze River,the paper put forward two proposal as follows:(1)to cancel the Jinjiang and others common flood diversion and storage works, and to only remain Honghu flood storage works and Dujiatai flood diversion works, especially by considering Honghu as more important;(2)to construct Honghu flood storage works by “the step by step”and“farm and breed exploit contemporary”principle.