Harnessing of Yellow River Estuary under new water and sediment condition

An analysis was made on the variation and effects of water and sediment transferring from the upstream to the Yellow River Estuary in future.Some problems related to the harnessing of the Yellow River Estuary under new water and sediment condition were discussed from the view point that human activities should assort with the nature,the problems including the water way to the sea,the evolution of the Yellow River Delta,ice-jam flood control,protection of water resources,ecological environment,and wetland,planning and allocation of social economy,and estuary management.Although the invariable water and sediment condition in the Yellow River,i.e.more sediment and less water,will not lead to obvious variation of the regularity of the evolution of the river estuary,the rational human interventions are necessary and effective.Therefore,much research work should be performed to obtain reasonable schemes for harnessing of the Yellow River Estuary.Protection and rational utilization of water resources is a key issue in the estuary harnessing,and the fundamental measures are to adjust the industrial structure,to construct water-saving society,and to improve the efficience for water utilization.Owing to the close relationships between different problems currently existing in the estuary harnessing,it is necessary to adopt comprehensive harnessing method for unified management.Moreover,the harnessing of the estuary is a part of the whole river basin regulation;therefore, it is important to make an overall plan and take all factors into consideration for reasonable development.