STUDY ON WATER RESOURCES CARRYING CAPACITY IN XIANGYANG CITY BASED ON MIDDLE ROUTE OF CHINA’S SOUTH-TO-NORTH WATER DIVERSION PROJECT

The paper established assessment indicator system with 17 indicators． The indicators could reflect the level of regional water resources carrying capacity based on natural geography and social economic conditions of Xiangyang City，the middle reaches of Hanjiang Ｒiver． Vector norm method was used to evaluate the water resources carrying capacity of Xiangyang during 2000 to 2012． The results indicated that the water resources carrying capacity leval of Xiangyang was relatively low， which varied from 0. 2939 to 0. 4114，but had a tendency of improvement． As the middle route of Chinese south-to-north water transfer project achieved water diversion for the first time in 2014，the contradiction between supply and demand of water resources would more prominent due to the reduction of discharged water． Ｒesearch results could provide theoretical reference and practical guiding for Xiangyang to use water resources appropriately and enhance ecological environment construction，so as to decrease the negative influence of water diversion and achieve sustainable development．