依据中央一号文件精神和水利部实施最严格水资源管理制度的部署，以全国水资源综合规划成果为基础，根据长江流域水文情势，充分调研长江流域干支流及各省级行政区的用水现状和用水规划，将流域取用水总量控制指标分解落实到各省级行政区和主要支流水系，最终细化到具体水资源控制断面上。该研究可作为流域机构贯彻落实中央一号文件，逐步建立以“总量控制与定额管理相结合”为目标的流域最严格水资源管理工作体系提供定量化的技术支撑和决策依据。

This research is made in accordance with the No.1 Central Document Policy and the most stringent water resources management planning issued by the Ministry of Water Resources. The status quo and planning of water use in the main stream and tributary of Yangtze river basin and provincial administrative regions are investigated on the basis of national water resources comprehensive planning and the hydrological regime in the basin. The targets of controlling the water use total amount for the whole basin are divided and implemented in each provincial administrative region and the main tributaries, and are ultimately allocated to each specific control section. The research result could serve as quantification technological support and decision-making basis for organizations in the basin to carry out the No.1 Central Document Policy and to establish the most stringent water resources management system combining total amount control with quota management.