Influence of water control project on Yellow River to ecological environment

The water control projects on the Yellow River have played a great role on the regulation of water during the wet and dry years,and improved ecological condition in the arid and semi-arid regions as well as the regulation of ecological water consumption.However,the project has also changed the river pattern itself,and reduced the diversity of river condition.From the practical point of view to evaluate the gains and losses of water control projects on the Yellow River to the development of economy,safety and environment,it reminds the people to have a reflection on the engineering concept of water control projects.The water control project not only satisfies the demand of the society,but also maintains the health of ecological system and sustainability,promotes harmonious coexistence of human being and nature.