Abstract:

By defining the concept and content of water resources carrying capacity,the method of water resources carrying capacity was put forward based on the coordination coupling of population,economy and water resources system according to total quantity control of water consumed.The method adopted measures such as industrial structure adjustment and water resources allocation model,and it was applied in the Yuan River Basin.The results showed that the fixed optimized water declined,the total using water decreased and the water use efficiency improved in each industry.The water demanded reduced by 36 and 90 million cubic meter compared with the water before adjustment,and the reduce margin was about 23% and 53%.For the different target years,the carrying capacity of the average GDP and people increased to a certain extent in the water using regions.The GDP of the whole basin increased by 2649 and 15191 billion Yuan,and the people increased by 77 300 and 18 740 of the whole basin in 2015 and 2030.