Water Environment and Water Ecology Issue in the Middle and Lower Reaches of the Yangtze River, and Countermeasures

The middle and lower reaches of the Yangtze River is an important base for producing grain, cotton and oil plants, one of the most rapidly developing areas economically in China. Along with the rapid development of the economy, its environmental quality related to water, soil and atmosphere decline rifely and obviously compared with that in twenty years ago. In the meantime, flood menace still exists, drought and waterlogging coexists, and water environment and water ecology have been deteriorating. This paper emphasized more important issues related to the regional water environment and water ecology, and put forward corresponding countermeasures based on domestic and foreign experiences, so as to drive social-economy sustainable development of the region.