Study On Water Resources Optimized Allocation For Yindaruqin Water Supply Area

The water is an origin of life and one precious resources which is essential to human livelihood and development. It is also important constituent of the natural environment. It is the foundation condition of economic society sustainable development,too. Along with the population and economical growth, the water resources demanding increases unceasingly, but the water environment worsens unceasingly. The water resources short already became the global question.In this article, the authour carries on the exploration and research on the multi-objective linear programming model and the application of the water resources system through reading massive literature, making summary analysis on the results of current water resources optimizal disposition research. In this research we take the sustainable development as the guiding ideology of water resources optimizal disposition.We make water requirement forecasting and do the practical application research on optimizal disposition of Yinda project, Gansu Province. In this research we try to seek the optimizal disposition of water resources between respective branches of a national economy and sectors of Yinda supply district. This research content and achievement including the following several aspects:(1) Succinctly introduce the question that water resources faced in our country ; summary the research present situation resources of optimizal disposition in domestic and abroad ; point out the main question at present, which make the research direction clear;(2) Elaborate the basic concept of water resources optimizal disposition comprehensively and systematically, including the duty and the history, the connotation and the function, the basic principle, the goal and the general form of water resources optimizal disposition and so on.(3) Elaborate the system theory and the system analysis method of water resources; introduce the water resources system model simply, analyse the water resources optimization model with emphasis; carry on the system analysis and the introduction to the water resources system multi-objective linear programming model establishment and the solution.(4) Analyse the necessity of carrying water resources optimizal disposition in Yinda water supply district. The importance of the water requirement forecasting in the water resources optimal allocation is discussed. The author introduces some other forecasting methods, such as the model of Artificial Neural Networks(ANN),Grey Forecasting and Guide Line Analysis which is often used. At the end, the author choses the method of Guide Line Analysis to forecast the region water requirement in the future and carries on the supply and demand balance analysis . The findings indicate: in 2010 supplying and demanding is maintenance balance basically. The available supply quantity of Yinda supply districbut is 413,990,000 m3, total water demanding is 392,180,000 m3, so 21,810,000 m3 is excess. Along with the development of social economy in Yinda supply district, the water demand will increase unceasingly, to 2015, the available supply quantity will be 411,770,000 m3, total water demanding increase to 486,800,000 m3, 75,030,000 m3 are lacking . Therefore, so long as reasonably dispose the use water resources in the near future, it might meet the water demanding . In view of the water lacking reality in the furture, we might through raising the water resources use factor and seeking the new water source to solve. The author propose to construct underground reservoir in Qin Wangchuan basin to settle the problem.(5) Based on the water suppling and demanding analysis of Yinda supply district, the rasearch establishes the multi-objective linear programming model by using water resources system theory. In satisfing the project water furnishing ability under the premise and taking supplies the water district water resources demand as the basis, we try to seek the water supply plan which conforms to the project main body economic efficiency and is the most superior for the water district economic efficiency and satisfies the environment request ,too. The best water supply plan in 2010 is : the quantity supply for city life is 66,509,000 m3 which occupy 15.5% of the total quantity 429,068,100 m3; the quantity supply for village life is 15,179,000 m3 which occupy 3.5%; the quantity supply for industry is 51,983,200 m3 which occupy 12.1%; the quantity supply for Ecology is 18,573,100 m3 which occupy 4.3%; the quantity supply for agriculture is 276,823,800 m3 which occupy 64.5% m3. The best water supply plan in 2015 is : the quantity supply for city life is 71,987,700 m3 which occupy 16.6% of the total quantity 433,675,900 m3; the quantity supply for village life is 15,949,200 m3 which occupy 3.68%; the quantity supply for industry is 47,432,400 m3 which occupy 10.94%; the quantity supply for Ecology is 19,643,100 m3 which occupy 4.53%; the quantity supply for agriculture is 278,663,800 m3 which occupy 64.26%.