Study On Water Price Of Multi-water Resources In The Reception Basin Of The South-to-North Water Transfer Project

To solve the problem of uneven distribution in space-time of water resources, the South-to-North Water Transfer Project has been building to transfer more water resources to the cities along the line. The cost of the great project is higher than that of the local water supply. If supplying the water resources to the users as a separate source, the water price may be so high that nobody likes to use the water. And if transferring the water resources by matching engineering to the local water source or water supply network system, the unified water price should be made. The rational price should have the advantages in cost recovery, as a lever in water resources allocation, and satisfying the basic water use in living and producting. Based on the theory of water resources value, the principles and methods of making unified water price was studied, by which the important basis was provided. Water prices in Beijing in2015were measured for different users when the South-to-North Water Transfer Project would be finished.Five main aspects have been studied, and the results as follows:(1) Water prices for local water resources have been measured by the total cost price method, combined with the meaning of water resources value and the methods for making water price of resource. Water price of resource for residents living was messured by the method of willingness to pay, which was2.59yuan/m3. Water prices of resource for irrigation, secondary industry and service sector were measured by the method of simple shadow price, which were0.75yuan/m3、3.57yuan/m3and6.47yuan/m3, respectively. Making different standards for resource prices was according to the requests by the departments like the national development and Reform Commission. Active engineering price and environment price were taken to gain the total cost prices as5.33yuan/m3、0.75yuan/m3、6.31yuan/m3and9.21yuan/m3, respectively.(2) The cost of main part of project that proportioned by Beijing was measured, which contained basic cost and quantitative cost according to the principle and methods for two-part water price making. The basic water price and the quantitative water price were0.68and3.22yuan/m3, respectively, the flat price was3.90yuan/m3. And according to the investment of the matching engineering in Beijing, the basic water price and the quantitative water price for the matching engineering were0.36and2.14yuan/m3, respectively. The basic water price and the quantitative water price for the whole project containing the main project and the matching project were1.04and4.98yuan/m3, respectively, and the flat price was6.40yuan/m3.(3) Principles and methods for the water Price of multi-water resources in the reception basin were given based on water resources value theory. Considering the low bearing capability to water price, and almost using local groundwater, agricultural users didn’t take part in the apportionment of expenses. The studies on unified water price making only contained the users as resident living, secondary industry and service sector. The apportioned expenses by each user were defined by apportioning coefficient method. The apportioned expenses contained total resource expenses and the basic and the quantitative expenses of the water diversion project. The apportioning coefficient for the user was defined by its proportion that the product of the water consumption and resource price to the sum of all the suers. The resource price was the ratio of apportioned expenses to the water sonsumption. Adding up the engineering price and environment price, the unified total cost price was gained.(4) The influence factors for the unified price were analyzed. The calculation for unified resource price were made up by three parts that were forecasting project, process calculation and results analysis. Different influence factors were given in the forecasting project, and the unified price for each user in the project were calculated in the process calculation part. Finally, the impacts of living and processing and the cost recovery were analyzed in the result analysis part. In the calculation for Beijing, four projects for water demand prediction were made. The water deficits in2015were predicted conbined with the amount of local available water resources. Then, taking1058million and725million cubic meters as quantitative amounts, the total cose prices for resident living, secondary industry and service sector were messuered respectively, which were6.03yuan/m3、7.28yuan/m3、10.96yuan/m3and5.67yuan/m3、6.78yuan/m3、10.06yuan/m3. When taking725million cubic meters as quantitative amount, the water charge would not meet the cost of the water transfer project in the situation of economic development with high speed and common water use quota.(5) The bearing capability of users to water price were taken as the constrained condition. According to the results of socioeconomic development prediction, the bearing capability of users to water price were measured. Among them, the people who taking the minimum insurance were taken as study subject because of the fairness and public service in water supply. The bearing capability of secondary industry and service sector were analyzed by the ratio of the water charge to the total value of product.2.5%was taken as the index, and the bearing capabilities were much higher than the water prices. The bearing capability of irrigation was defined by the crop with the lowest bearing capability, which was the grain crops. And the final water price for irrigation was0.33yuan/m3.