The relationship of water resource utilization between the middle route of south-to-north water transfer project and the middle and lower basins of the Hanjiang River

Due to increasing acceleration of both economic development and population growth, water consumption and requirement have increased greatly since the 1980s, and water shortage in northern China has become a major factor constraining economic and social development: The south-to-north water transfer project is considered as a strategic and ambitious approach to resolve water shortage problems in the north of China, but it changes the relationship of water resource utilization in water source region at the same time. The middle route of the south-to-north project transfers some water from the Danjiangkou Reservoir on the Hanjiang River, it will obviously affect the water balance of the middle and lower basins of the Hanjiang River. Focused on water resource sustainable utilization, a water balance study conducted according to the principle of integrated water resources planning and management is shown in this paper,. and the analysis of the relationship between the basins and the middle route project are discussed in detail. Finally, Some advices are given to ensure the sustainable utilization of water resource of the two regions.